PostgreSQL is the world's most advanced, powerful, and efficient open source relational database management system, and some of the world’s most demanding applications rely on PostgreSQL as their primary database management system. PostgreSQL is known for its accuracy, security, and scalability. A PostgreSQL Developer creates ways to store corporate data in a reliable, secure, and efficient way. They can create scalable databases using these technologies - this means that a PostgreSQL Developer can help you keep up with the ever increasing demand for larger amounts of data. They can also develop applications to read from and write to these databases and optimize existing databases for better performance.

Compared to other database management systems, PostgreSQL boasts superior performance, reliability and security. This Database Management System is also renowned for its extensibility, meaning that it allows developers to customize their databases according to the exact needs of their application and load requirements - whether it's a simple web application or huge enterprise scale solutions.

Here's some projects our expert PostgreSQL Developer made real:

  • Developing unique solutions with Odoo Manufacturing & Maintenance Module
  • Connecting web applications with secure REST API integrations
  • Creating data extraction scripts with Nodejs
  • Developing complex SaaS solutions with Laravel/React/AWS
  • Implementing advanced authentication protocols (JWT)
  • Truckloads of migration projects from different AWS stacks & SSO integrations
  • Developing automation & no-code project pipelines leveraging nodejs and python
  • Building serverless Java applications with Springboot and other frameworks
  • Publishing/Hosting express.js & handlebars.js web apps

PostgreSQL technology has been a go-to solution for many clients when creating bespoke applications that meet the needs of their business. Our PostgreSQL Developers have built everything from small custom applications to complex enterprise solutions on Freelancer.com. You too can hire an expert developer here today to make your project happen!

จาก 97,457 รีวิว ลูกค้าให้คะแนน PostgreSQL Developers 4.9 จาก 5 ดาว
จ้าง PostgreSQL Developers

PostgreSQL is the world's most advanced, powerful, and efficient open source relational database management system, and some of the world’s most demanding applications rely on PostgreSQL as their primary database management system. PostgreSQL is known for its accuracy, security, and scalability. A PostgreSQL Developer creates ways to store corporate data in a reliable, secure, and efficient way. They can create scalable databases using these technologies - this means that a PostgreSQL Developer can help you keep up with the ever increasing demand for larger amounts of data. They can also develop applications to read from and write to these databases and optimize existing databases for better performance.

Compared to other database management systems, PostgreSQL boasts superior performance, reliability and security. This Database Management System is also renowned for its extensibility, meaning that it allows developers to customize their databases according to the exact needs of their application and load requirements - whether it's a simple web application or huge enterprise scale solutions.

Here's some projects our expert PostgreSQL Developer made real:

  • Developing unique solutions with Odoo Manufacturing & Maintenance Module
  • Connecting web applications with secure REST API integrations
  • Creating data extraction scripts with Nodejs
  • Developing complex SaaS solutions with Laravel/React/AWS
  • Implementing advanced authentication protocols (JWT)
  • Truckloads of migration projects from different AWS stacks & SSO integrations
  • Developing automation & no-code project pipelines leveraging nodejs and python
  • Building serverless Java applications with Springboot and other frameworks
  • Publishing/Hosting express.js & handlebars.js web apps

PostgreSQL technology has been a go-to solution for many clients when creating bespoke applications that meet the needs of their business. Our PostgreSQL Developers have built everything from small custom applications to complex enterprise solutions on Freelancer.com. You too can hire an expert developer here today to make your project happen!

จาก 97,457 รีวิว ลูกค้าให้คะแนน PostgreSQL Developers 4.9 จาก 5 ดาว
จ้าง PostgreSQL Developers

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    สถานะงาน
    57 งานที่พบ

    We need a senior developer (freelancer or agency) to fix critical issues and deliver production-ready updates for a mobile-first app. Tech stack - Backend: ASP.NET Core Web API (C#) - Database: PostgreSQL - Realtime/chat: Firebase Firestore - Mobile: Flutter - Web/admin: React (nice-to-have) Must deliver (priority scope) - Password reset emails not delivered: diagnose provider/config/deliverability and make it reliable. - CV/PDF download shows “success” but file does not download/open: fix file storage + delivery flow (streaming or signed URL) and correct response headers. - Payment flow redirects/loops and the app cannot return after payment: fix return URL/deep link/callback handling and make the flow consistent. - Performance: Improve response times using pagination, index...

    $34 / hr Average bid
    $34 / hr การประมูลเฉลี่ย
    40 คำเสนอราคา

    I’m planning a modern real-estate website built with the following stack: • for the front-end (SSR/ISR for optimal SEO) • Node.js for a standalone REST API • PostgreSQL as the primary data store Core features I must see live: • Property listings – create, edit, archive, display with image galleries • Search & filters – location, price, bedrooms, and any other common criteria, returning results instantly • High speed & fully responsive design – Lighthouse 90 + on mobile and desktop, fluid across breakpoints The front-end should consume the API only; no direct DB calls from the client. Please structure the codebase so I can deploy the app to Vercel (or similar) and the API to a separate Node environment. Includ...

    $289 Average bid
    $289 การประมูลเฉลี่ย
    90 คำเสนอราคา
    Complete & Launch Evangelism App (TWSS)
    6 วัน left
    ยืนยันแล้ว

    Project Title Finish and Launch + Firebase Evangelism App (TWSS) Overview I need an experienced full-stack developer to finish, debug, and launch a web-based evangelism app called The World Shall Be Saved (TWSS). The project is mostly built but currently unreliable due to an incomplete backend change (Firestore originally, partial PostgreSQL work). There is an older version that worked and a newer branch with partial fixes. Your job is to get it stable, working end-to-end, production-ready, and prepare it for release on Google Play and Apple App Store (via the simplest reliable approach based on the repo). Current Stack • Frontend: • Auth: Firebase Authentication • Database: Firestore (original), partial migration toward PostgreSQL (incomplete) • Google APIs: Googl...

    $395 Average bid
    $395 การประมูลเฉลี่ย
    181 คำเสนอราคา

    I need a full-featured ecommerce platform, built in PHP with a PostgreSQL backend, that feels as fluid as Amazon yet remains focused on the domestic Indian market. All products and their sub-categories must live in the database and be created or modified through a dedicated admin dashboard—no code edits or CSV uploads, just real-time forms that write directly to PostgreSQL. Core user-side features come first: powerful product search with layered filters (category, price, trending, etc.), a secure payment gateway integrated end-to-end, and authentic customer reviews with star ratings. Speed and accuracy of those search filters are critical, so efficient SQL queries and smart indexing will be expected. On the back end I want an analytics-style dashboard that lets me watch sales volum...

    $112 Average bid
    $112 การประมูลเฉลี่ย
    21 คำเสนอราคา

    I’m looking for a long-term collaborator who can step in on a part-time basis to keep raising the quality bar of our existing software. The core platform is up and running; what I need now is an experienced developer who enjoys refactoring, tightening performance, improving stability, and generally making good code great. Your weekly work will revolve around: • Reviewing and refactoring legacy modules for cleaner, more maintainable code • Writing unit and integration tests to boost coverage and catch regressions early • Profiling and tuning performance hotspots so the application stays fast under load • Updating documentation so future contributors can ramp up quickly We work with a modern stack (Python, Django, PostgreSQL, Docker, GitHub Actions), so com...

    $20 / hr Average bid
    $20 / hr การประมูลเฉลี่ย
    73 คำเสนอราคา

    We are building a modular AI-powered WhatsApp support system integrated with our existing WooCommerce, CRM infrastructure and subscription Support. All using Whatsapp as main Seller bot. The system must include: • WhatsApp Cloud API integration • Custom middleware (Node.js or Python preferred) • Subscription validation by WhatsApp phone number • Role-based access control (Farmer, Field Technician, Repair Technician, Full Technician) • AI integration (OpenAI API) • Structured logging and audit trail • Escalation to human support • Clean architecture with separation between commercial and technical domains • Integration with Kommo or other simular. • Integration to Woocomerce • Woocommerce al functions tests: freights, Payment, Invoi...

    $3854 Average bid
    $3854 การประมูลเฉลี่ย
    147 คำเสนอราคา

    We are looking for an experienced Full Stack Developer with strong expertise in Django (Python) and React.js to help build and maintain a scalable web application. This is a long-term opportunity for the right candidate. Responsibilities: Develop and maintain backend services using Django and Django REST Framework Build responsive, high-performance front-end interfaces using React.js Design and integrate RESTful APIs Work with relational databases (PostgreSQL preferred) Implement authentication, authorization, and security best practices Write clean, maintainable, and well-documented code Collaborate with the team on architecture and feature planning Troubleshoot and optimize application performance Required Skills: 3+ years experience with Django 3+ years experience with React.js Strong u...

    $33 / hr Average bid
    $33 / hr การประมูลเฉลี่ย
    96 คำเสนอราคา
    App Gestión Proyectos NextJS Supabase
    6 วัน left
    ยืนยันแล้ว

    Quiero diseñar y luego dar mantenimiento continuo a una aplicación de gestión de proyectos desarrollada en Next JS y Supabase, trabajando dentro del entorno de programación asistida Cursor. Alcance funcional • Asignación de tareas: creación, edición, fechas límite, responsables y prioridades. • Seguimiento del progreso: vista Kanban y reportes de avance automáticos. • Comunicación en equipo: comentarios en hilo y notificaciones en tiempo real. Audiencia y permisos La plataforma atenderá a tres roles bien diferenciados—Administradores, Colaboradores y Clientes—por lo que espero control de acceso basado en roles (RLS de Supabase) y una interfaz que muestre a cada perfil solo la infor...

    $13 / hr Average bid
    $13 / hr การประมูลเฉลี่ย
    100 คำเสนอราคา

    Project Overview I am building a B2B AI automation platform for small and medium businesses. The platform monitors email and calendar, surfaces intelligent summaries and recommended actions, automates repetitive GUI workflows across web applications, and gives teams an AI assistant accessible via a Chrome extension sidebar. This is a production build — not a prototype. The platform needs to be ready for real paying customers at the end of the engagement. What You Will Build The full product, end to end. This includes: • A Python backend API deployed on a cloud platform, handling authentication, AI routing, cost management, and all business logic • A Chrome Manifest V3 browser extension with a sidebar interface — the primary user surface • Continuous ...

    $2137 Average bid
    $2137 การประมูลเฉลี่ย
    42 คำเสนอราคา

    I already have a working web front-end, but the data layer behind it is still a proof-of-concept. I now need a production-ready Supabase backend that can confidently power inventory, CRM, marketing, and document-filing features at scale—and, where the current React code shows strain, you will refactor it so the whole stack remains clean, testable, and easy to extend. What the backend must cover • Inventory Management: robust stock tracking and supplier management tables, triggers, and Row-Level Security so every quantity change is auditable. • CRM: lead tracking, customer segmentation, and performance analytics views that can grow into millions of records without manual tuning. • Document Filing: storage buckets with signed-URL access, versioning, and metadata i...

    $2914 Average bid
    $2914 การประมูลเฉลี่ย
    108 คำเสนอราคา
    PHP React Full-Stack
    6 วัน left

    I’m building a new product on AWS using PHP 8, React for web, and React Native for mobile. The front-end foundations are in place; where I need your expertise is the backend. Here’s what I need you to dive into: • API creation and integration – design RESTful (and, where it makes sense, GraphQL) endpoints, document them clearly, and make sure front-end clients can consume them with minimal friction. • User authentication and management – implement secure signup/login, token refresh, and role-based access control, ideally with best-practice libraries such as Laravel Sanctum or AWS Cognito if we decide to offload. • Data processing and storage – wire up efficient flows that read and write to MySQL, PostgreSQL, and the pg-vector extension...

    $3 / hr Average bid
    $3 / hr การประมูลเฉลี่ย
    21 คำเสนอราคา

    IWe are looking for a freelancer to install Apache Superset using Docker and connect it to our existing PostgreSQL database. Tasks: - Install the latest stable version of Apache Superset using Docker - Configure Superset to connect to an existing PostgreSQL/PostGIS database - Verify that dashboards and queries work correctly - Provide clear documentation of the installation and configuration process Environment: - Linux server - Docker - PostgreSQL / PostGIS Requirements: - Experience installing Apache Superset - Strong Docker knowledge - Experience connecting BI tools to PostgreSQL - Ability to document the setup so our team can maintain it Estimated effort: 1–2 days of work. Por qué es mejor así

    $36 / hr Average bid
    $36 / hr การประมูลเฉลี่ย
    48 คำเสนอราคา
    Travel OS MVP Development
    5 วัน left
    ยืนยันแล้ว

    Agwa Travel OS — MVP Development (Architecture‑First Build) Agwa Travel OS is a unified travel platform built on a modern, cloud‑ready stack: Node.js + NestJS services, React/ front end, PostgreSQL, Redis, and ElasticSearch running on AWS. The technical architecture, module boundaries, API contracts, and phased milestone plan are already fully documented. What I need now is a disciplined, architecture‑first development team that can execute cleanly and stay with the product long term. Scope of the MVP The first release focuses on delivering the complete core travel flow across multiple verticals: 1. Search → Book → Pay Users must be able to: Search flights, hotels, cars, and experiences View real‑time availability and pricing Complete booking and checkout using Stripe ...

    $578 Average bid
    $578 การประมูลเฉลี่ย
    182 คำเสนอราคา

    We are building an AI-powered technical interview and remote assessment platform designed to automate and enhance hiring processes for global companies. The system will integrate real-time video communication, screen sharing, browser-based coding assessment, and AI-driven interview intelligence including automated question generation, live evaluation, and structured answer suggestions. We are seeking a highly experienced Full Stack Engineer to lead architecture and development of this scalable SaaS product. Russian Developer should be high priority for skilled people. Don't apply Indian people don't waste your time

    $1190 Average bid
    $1190 การประมูลเฉลี่ย
    41 คำเสนอราคา

    My production-ready application is a React front-end paired with a Laravel API, and I need it running smoothly inside a Virtual Data Center hosted by BluVault. The source is already in Git; what’s missing is the infrastructure lift: provisioning the VDC, configuring web and app servers, securing traffic with SSL, and wiring up the deployment pipeline so new commits ship automatically. I am already committed to BluVault as the hosting provider, so please be comfortable working inside their portal, networking model, and console tools. Experience with Nginx or Apache, PHP-FPM, Node and Yarn, Composer, MySQL/PostgreSQL, and let’s-encrypt or comparable SSL management will be essential. For clarity, here’s what I expect to receive: • A fully configured BluVault Virtual ...

    $15 Average bid
    $15 การประมูลเฉลี่ย
    16 คำเสนอราคา
    football portal
    5 วัน left

    Project Title: Full-Stack Developer needed for Sports Management Platform Backend (PostgreSQL/Prisma) Project Description: I have a fully designed and responsive frontend for a sports performance management platform (CPM HUB) built with (App Router), React, Tailwind CSS, and shadcn/ui. The interface is ready, but the platform currently lacks a backend. I need an experienced Full-Stack Developer to build the database, implement authentication, and connect the frontend to make the application fully functional. Key Responsibilities: Database Architecture: Design and deploy a PostgreSQL database and manage it using Prisma ORM. Authentication & RBAC: Implement a highly secure Authentication and Role-Based Access Control system for 4 distinct user levels: Admin, Coach, Player, and Par...

    $605 Average bid
    $605 การประมูลเฉลี่ย
    60 คำเสนอราคา

    I maintain several large, structured datasets spread across MySQL, PostgreSQL and SQL Server instances. Only portions of the existing schemas are documented, so the very first step will be to inspect each system, reverse-engineer any missing metadata and confirm table relationships. Once the landscape is clear I need all records extracted, cleaned, normalised and deduplicated, then merged into a single, well-organised MongoDB database. Your work should include a carefully planned document model that supports growth, fast look-ups and straightforward analytics. Proper indexing, sharding strategy (where appropriate) and query optimisation are critical because future workloads will be heavy and latency-sensitive. Please deliver: • An optimised MongoDB schema and architecture diag...

    $281 Average bid
    $281 การประมูลเฉลี่ย
    14 คำเสนอราคา

    Infinity is the name I have reserved for an AI-driven web platform that functions first and foremost as an educational resource. I want a clean, scalable solution that lets anyone—from K-12 pupils to college, postgraduate or lifelong learners—store, organise, and retrieve knowledge in any field with the help of machine-learning features. Here is the vision in plain terms. Users create an account, upload or link their study material (PDFs, videos, lecture notes, articles or datasets), and the system instantly classifies, tags and indexes that content. A conversational AI layer (think ChatGPT-style) then allows them to ask questions, generate quick summaries, build flashcards, or create personalised study paths from their own resources plus open-access reference material pulled ...

    $17 / hr Average bid
    $17 / hr การประมูลเฉลี่ย
    106 คำเสนอราคา
    Car pull start
    5 วัน left

    I’m ready to move from concept to a working Android-only ride-hailing application built with React Native. Both drivers and riders will use the product, so the codebase, navigation flow, and backend need to cleanly separate (and securely share) the two experiences. Core features I need implemented (or, where partially done, completed and iron-clad): • Google Maps + OpenRouteService for real-time routing • From/To address search through Google Places Autocomplete • Accurate polyline rendering with distance and duration read-outs • Dynamic driver list that shows car model, rating, next available slot, and price • Fare calculation that changes automatically for Luxury, AC, and Non-AC vehicles • Ride search updates and alert notifications so ri...

    $4 / hr Average bid
    $4 / hr การประมูลเฉลี่ย
    15 คำเสนอราคา

    We are looking for a skilled React and Developer to join our remote engineering team. You will be responsible for building scalable, high-performance features across our ticketing and event management platform using modern web technologies. Responsibilities • Develop and maintain web applications using and React • Build scalable backend integrations with PostgreSQL • Integrate and deploy applications using AWS infrastructure • Write clean, maintainable, and well-documented code • Collaborate with product managers, designers, and backend engineers • Optimise application performance and ensure responsiveness • Participate in code reviews and technical planning Required Skills • Strong experience with NestJs and React • Solid understan...

    $7 / hr Average bid
    $7 / hr การประมูลเฉลี่ย
    58 คำเสนอราคา

    Location: Remote Duration: May – November 2026 Rate: Competitive Monthly Rate (USD) Project Overview: We are seeking a high-output Senior Full-Stack Engineer to lead the development of an e-mobility portal. This platform is a government-grade digital observatory tracking EV adoption, charging infrastructure and carbon reduction (dMRV) metrics. The Tech Stack: Frontend: (React), Tailwind CSS Backend: Node.js, Strapi (Headless CMS) Database: PostgreSQL Search/Security: Meilisearch, OpenSSL (TLS 1.2+), Non-Google MFA Infrastructure: Docker, AWS/DigitalOcean, GitHub Core Responsibilities: Architecture (WP2): Establish secure containerized environments (Dev/Test/Prod) and a relational database for complex dMRV metrics. Security (WP3): Implement strict data protection protocols, inclu...

    $7753 Average bid
    $7753 การประมูลเฉลี่ย
    47 คำเสนอราคา

    Project Overview We are looking to build a robust, modular, and scalable URL shortener service for our application. This is not a standalone project it should be integrated into our existing dashboard. The core purpose of this service is to provide powerful link tracking, detailed analytics, and compliant data handling for all short URLs generated within our platform. You will be responsible for building the backend logic, the database schema, and test out on the already built frontend dashboard for analytics. Project Scope & Key Features You will be tasked with implementing the following features: 1. Core Functionality & Tracking: Per-Recipient Click Tracking: The system must store `recipient_id`, `campaign_id`, `click_time`, and the associated `url_hash` for each click to ...

    $99 Average bid
    $99 การประมูลเฉลี่ย
    36 คำเสนอราคา

    I am looking for a strong full-stack developer to help complete an existing SaaS web application. The project is already in building. Backend, database, authentication, and deployment setup are already almost completed. The remaining work includes UI updates and implementing core business features. Tech stack: - Frontend: React (TypeScript) - Backend: Fastify (Node.js, TypeScript) - Database: PostgreSQL (Prisma) - AWS: SES, S3 - Google APIs (Places) - Hosted on DigitalOcean Current Status - Project structure completed - Core authentication implemented - Database schema stable - Deployment environments created - Basic admin and profile flows working Remaining Work - UI updates - Referral feature refinement - Admin page improvements - Bug fixing and cleanup - Production stabilization Th...

    $9 / hr Average bid
    $9 / hr การประมูลเฉลี่ย
    122 คำเสนอราคา

    Quero colocar em produção um MVP de plataforma de atendimento via WhatsApp que use Z-API para conexão e OpenAI para inteligência conversacional. A ideia é simples: o bot deve responder automaticamente às primeiras mensagens do cliente e, quando necessário, encaminhar a conversa para um atendente humano sem perder o histórico. O que preciso que você implemente: • Integração completa com Z-API para gerir envios, recebimentos e webhooks. • Módulo em OpenAI (chat-completion) capaz de entender FAQ e gerar respostas coerentes em português. • Lógica de triagem que, ao detectar pedidos específicos ou palavras-chave configuráveis, transfira o chat para um painel de agente...

    $497 Average bid
    $497 การประมูลเฉลี่ย
    90 คำเสนอราคา

    PROJECT BRIEF Multi-Client Odoo ERP Platform with Offline-First Architecture, Bank Integration, AI Analytics & Zero-Trust Security 1. Project Overview We are building a **scalable, multi-tenant Odoo Enterprise-based ERP and accounting infrastructure** to deliver outsourced accounting, tax, payroll, inventory, and operational services to multiple clients across industries, including: * Pharmacy * Restaurant * Retail / Clothing * Manufacturing * NGO / Fund Accounting * Merchant / POS businesses The platform must be: * Cloud-first ( preferred) * One database per client (strict isolation) * Offline-first for operations (Africa-ready: unreliable internet/electricity) * Secure by design (zero-trust architecture) * AI-enabled for predictive analytics * Fully documented and production-gr...

    $16238 Average bid
    $16238 การประมูลเฉลี่ย
    108 คำเสนอราคา
    deploying and configure the Messenger application
    4 วัน left
    ยืนยันแล้ว

    deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administration, and cloud services. Project Deliverables Server Deployment: Hybrid database approach Distributed Cluster We must separate: Edge Layer (Ingress + WebSocket) Application Layer (Spring Boot Core) Stateful Data Layer (Cassandra, PostgreSQL, Redis) Media + Search + Observability WebRTC Stack &bull...

    $108 Average bid
    $108 การประมูลเฉลี่ย
    95 คำเสนอราคา

    We are looking for a full-stack developer who can help develop an AI-powered platform to help provide insights on policy topics that are derived from academic papers. Skills needed: - (frontend) - python (backend) - postgres database - fastAPI - familiarity with vercel, supabase, and aws would be helpful as well Preferably based in the Philippines.

    $18 / hr Average bid
    $18 / hr การประมูลเฉลี่ย
    110 คำเสนอราคา

    Full-Time Django Developer Needed (India Only) We are looking for a full-time experienced Django Developer from India to join our trading prop firm project for long-term collaboration. Individual developers only — No agencies, companies, or teams. This position is strictly for developers based in India. Full-time availability (40+ hours per week) is required. Minimum 8+ years of professional experience in Django development is mandatory. =>Required Skills 8+ years of strong experience with Django and Django REST Framework Experience building scalable, high-performance backend systems Strong API architecture and development skills Payment gateway integration experience Database optimization (PostgreSQL preferred) Strong understanding of authentication, authorization & ...

    $744 Average bid
    $744 การประมูลเฉลี่ย
    25 คำเสนอราคา

    Title: Build Automated AI Sports Betting System + Discord Bot Description: I am building an AI-driven sports betting analytics platform. I need a developer to build a fully automated system that: • Pulls live and historical odds via The Odds API • Stores data in PostgreSQL • Builds predictive model (Logistic Regression baseline + XGBoost improvement) • Calculates: • True probability • Implied probability • Expected Value (EV) • Edge % • Filters bets only if EV > 5% • Applies risk management rules: • Max 2 units per bet • Max daily loss 5 units • Max 5 bets per day • Automatically posts picks to Discord via bot • Logs all bets in database • Tracks ROI, drawdown, and Closing Line Value • Incl...

    $343 Average bid
    $343 การประมูลเฉลี่ย
    102 คำเสนอราคา

    PLEASE READ MY POST CAREFULLY! DONT BID WITH BOT!!!!!!!!! I’m building a mobile-first application that lets small business owners snap a photo of an invoice and have the data flow straight into their books without any manual entry. The core flow is simple: the Android app (CameraX + ML Kit) captures the image, a Python FastAPI service runs OCR and AI models to pull out vendor, subtotal, tax and total, then we persist everything in PostgreSQL and expose it for bookkeeping, reports and CSV exports. What I need now is an end-to-end first release that proves the concept and is solid enough for real users: • Android client – single-screen capture with basic history. • Backend – FastAPI endpoints for upload, data extraction and CRUD on expense records. • ...

    $1500 - $3000
    ปิดผนึก
    $1500 - $3000
    257 คำเสนอราคา

    I’m launching Broker King, a digital platform created specifically for broker firms, and I need an experienced product-tech partner to turn the vision into a working solution. At this stage the core idea is defined—a single place where brokerage teams can manage their daily workflow more efficiently—but the detailed feature list, UX flow, and tech stack still need to be shaped. You will guide the process from discovery through to an MVP release, advising on best-practice architecture while also handling hands-on design and development. What I expect from you: • Collaborative scoping workshops to refine requirements, user stories, and acceptance criteria • Wireframes and high-fidelity UI mock-ups (Figma or similar) tailored to busy broker desks • A mo...

    $487 Average bid
    $487 การประมูลเฉลี่ย
    129 คำเสนอราคา

    I am looking for an experienced full stack developer to migrate an existing Base44 application to a fully self hosted infrastructure using Supabase as the backend. The objective is to remove the live production site from Base44 entirely, while still continuing to use Base44 as a development environment. I want the ability to build and update the app inside Base44, then when ready, lift and shift the updated version to my own hosting environment without being locked into Base44’s backend or infrastructure. This is a structured migration, not a rebuild. --- **Current Setup** * Application built in Base44 * Uses Base44 entities and SDK * Uses Base44 integrations: * InvokeLLM for generating blog content and Welsh translations from RSS feeds * SendEmail for contact forms and adm...

    $223 Average bid
    $223 การประมูลเฉลี่ย
    83 คำเสนอราคา
    Full-Stack Developer for MVP
    3 วัน left
    ยืนยันแล้ว

    We are looking for an experienced full-stack developer to build a scalable availability monitoring and client management system. The system should: Monitor availability of time-based service slots Detect newly available dates Notify clients in real time Support multi-client configuration Include an admin dashboard This is a SaaS-style platform with queue processing and session management. Core Requirements Monitoring Engine Continuous availability checking Near real-time detection Retry & error handling logic Structured logging Multi-Client Support 100+ concurrent clients Per-client configuration: Location selection Date range Time preferences Priority level Notification System Email and WhatsApp API integration Real-time alerts Status updates Admin Dashboard Live monitoring status Cl...

    $1264 Average bid
    $1264 การประมูลเฉลี่ย
    235 คำเสนอราคา
    Deploy Replit App to Production with Custom Domain
    3 วัน left
    ยืนยันแล้ว

    Deploy Replit App to Production with Custom Domain I have a fully built web application on Replit that needs to be deployed and supported on an ongoing basis. The app is a cooking club membership platform with user authentication, Stripe payments, PostgreSQL database, and email notifications. Phase 1: Initial Deployment & Debugging - Deploy app to production on Replit - Connect custom domain and configure DNS - Configure all production environment variables and secrets - Switch Stripe from sandbox to live mode - Complete debugging and testing of all features: - Waitlist signup and approval flow - Member authentication (Google sign-in) - Subscription payments and billing - Email notifications - Live class booking and access - Fix any bugs discovered during testing Phase 2: ...

    $9 / hr Average bid
    $9 / hr การประมูลเฉลี่ย
    44 คำเสนอราคา
    Advanced Real-time Traffic Management Platform
    3 วัน left
    ยืนยันแล้ว

    We are building a sophisticated, low-latency traffic management platform designed to perform real-time visitor segmentation. Our goal is to develop a "Smart Proxy" that distinguishes between automated crawlers (Ad Networks, Spy Tools, Headless Browsers) and genuine human users to dynamically serve content without traditional 301/302 redirects. The Challenge: You aren't just building a web app; you are building the "Brain" that manages thousands of requests per second. You must solve for sub-100ms response times while performing deep-packet and browser-level analysis to stay one step ahead of the most advanced bot-detection algorithms on the planet. Key Responsibilities & Scope: • The Filtering Engine: Build a multi-layered analysis pipeline (IP Intelligenc...

    $520 Average bid
    $520 การประมูลเฉลี่ย
    147 คำเสนอราคา
    AI-Integrated Financial Intelligence & Accounting Module
    2 วัน left
    ยืนยันแล้ว

    AI-Powered Accounting & Financial Intelligence Module (IFRS-Compliant, Multi-Entity, Project-Based) Project Overview We are building an advanced internal financial system on top of an existing FastAPI + PostgreSQL backend. We are looking for a senior backend engineer or small experienced team to design and implement a structured, AI-assisted accounting engine with OCR, reconciliation, and full financial statement generation. This is not a basic bookkeeping tool. It is a structured financial intelligence module integrated into a broader AI architecture. Budget & Timeline Delivery Deadline: 6 weeks from project start Milestone-based payments Serious candidates only. Architecture quality matters. Scope of Work 1. OCR & Document Processing Ingest PDFs, images, bank statements, inv...

    $4017 Average bid
    $4017 การประมูลเฉลี่ย
    70 คำเสนอราคา
    Claude SaaS Build on Vercel
    2 วัน left
    ยืนยันแล้ว

    I need a complete three-tier SaaS application generated with Claude Opus 4.6, then refined, wired-up, and deployed. The stack is already fixed: • Presentation layer: React, hosted on Vercel • API layer: serverless functions on the same Vercel account • Data layer: PostgreSQL on Supabase Core functionality must cover user authentication and management, data analytics with meaningful reporting dashboards, and real-time notifications delivered through the React interface. Only two access levels are required—Admin and User—so permission logic can stay lean while still supporting secure, role-based access throughout the API. Your deliverables should be: 1. Claude-generated source code for all three layers, committed to a Github repo. 2. Any manual tweaks n...

    $502 Average bid
    $502 การประมูลเฉลี่ย
    156 คำเสนอราคา

    Job Title: Website Design for Transportation Rate Publishing and Shipment Tracking Job Description: We are looking for an experienced web designer and developer to create a website that will be used for publishing and searching transportation rates. The site will serve as a platform for users to compare transport rates and make bookings for the carriage of goods between locations. Additionally, the website will feature a variety of forms for users to submit queries, booking requests, and other relevant information, as well as a shipment tracking system to monitor the status of goods in transit at different stages. Key Features & Requirements: Rate Publishing & Searching: A user-friendly interface for publishing shipping rates for transport from various origin to destination po...

    $2072 Average bid
    $2072 การประมูลเฉลี่ย
    70 คำเสนอราคา
    Full-Stack Developer for AI Event Ticketing Platform (Node.js + APIs)
    2 วัน left
    ยืนยันแล้ว

    Ora is an AI-powered event ticketing platform that helps organizers sell out their events through automated social media advertising and premium user experiences. The platform is already built and functional — we now need a sharp developer to fix critical issues, integrate key marketing tools, and prepare the product for a high-impact launch. ​ You should be comfortable jumping into an existing codebase, quickly understanding architecture, and shipping fixes fast. Your responsibilities: Debug and fix 2FA / OTP and login issues (e.g., MessageBird or similar providers). ​ Improve reliability and UX of auth flows across web and mobile (if applicable). Integrate and verify Meta/Facebook Pixel and Conversions API for accurate tracking and retargeting. ​ Wire up and test key marketin...

    $8 / hr Average bid
    $8 / hr การประมูลเฉลี่ย
    81 คำเสนอราคา

    Project Name: Custom Contractor Management System (Replace Tradify) Project Type: Full custom web + mobile application Overview: We are building a full contractor management system to manage engineers, subcontractors, jobs, timesheets, invoicing, GPS tracking, and reporting. The system must be scalable (currently 9 engineers, future 500+), secure, GDPR-compliant, and integrate with Sage first and Xero later. We need a freelancer (or small team) to develop both backend + frontend, mobile apps, and database according to detailed specifications. ⸻ 1️⃣ Key Features / Requirements A) Web Dashboard (Managers/Admins/Accountants) • Job management (create, assign, track status, attach files/photos) • Subcontractor management (assign jobs, track jobs, generate POs, track invoices) ...

    $13 / hr Average bid
    $13 / hr การประมูลเฉลี่ย
    130 คำเสนอราคา

    We are looking for an experienced full-stack developer or development team to build a modern nightlife discovery and booking platform. The platform will allow users to discover nearby pubs and events, view details, and make bookings with QR-based confirmation. This is a clean, modern, UI-focused product. It is not a generic listing website. ⸻ Mobile App (iOS & Android) Preferred stack: React Native (Expo) or similar cross-platform framework. Core Features: • Phone OTP-based login • Discovery feed (scroll-based listing with images/videos) • Map view showing nearby pubs and events • Pub bookings: • Daily entry booking • Table reservation • Event bookings: • Date-specific events • Entry booking • Table reservation • F...

    $4543 Average bid
    $4543 การประมูลเฉลี่ย
    53 คำเสนอราคา
    Accounting and Tax Platform
    1 วัน left
    ยืนยันแล้ว

    Need to build a tech-based accounting and tax platform with below features: 1) Updated Client Intake Process through: • The AI Intake Bot: A conversational experience for clients who are asked specific questions like operational scope, transaction volume, regional jurisdictions, team size & reporting/legal requirements. • The Project Specification Form: A structured, single-page form for professional clients who have their requirements (BRDs) ready. 2) The Negotiation Loop: • Admin Review: Admin evaluates the client's budget against the requested team size and scope. • The Counter-Offer: If the client's budget is too low for the expertise required, the Admin issues a counter-offer with a justification (e.g., "For a NetSuite cleanup of this volume, we ...

    $182 Average bid
    $182 การประมูลเฉลี่ย
    45 คำเสนอราคา

    I run a RO-based tech agency and I need a technical partner to take over running it. This post is specifically for technical freelancers and consultants who've already been running their own show — winning clients, scoping projects, managing delivery — and want to do it with an existing agency, team, and client base instead of building from zero. If you're a developer or architect who outgrew just writing code and started running your own consultancy, managing clients, and subcontracting to other devs — this is your role. This starts as a freelance engagement with a 2-week paid trial. If it works, this becomes full-time with a base salary + commission on new business. Partner-track, not employee-track. You get: an existing team of developers, active clients, and...

    $32 / hr Average bid
    $32 / hr การประมูลเฉลี่ย
    137 คำเสนอราคา

    I am building Parkera, a mobile marketplace that lets drivers locate, reserve, and pay for parking spots across Saudi Arabia while giving operators the tools to manage inventory and track performance. Phase 1 is an MVP covering the entire booking flow—from search to QR-code entry—and the essential operator dashboard. Scope of work • Mobile app in Flutter or React Native (your recommendation welcome) • Node.js API layer with PostgreSQL, deployed on AWS or GCP • Email-and-password authentication only for this phase • Driver profile with booking history, saved payment methods, and favourite parking spots • Real-time availability, time-slot reservation, in-app payments, QR generation/scan for entry • Operator web panel for inventory manage...

    $30668 Average bid
    $30668 การประมูลเฉลี่ย
    216 คำเสนอราคา

    I’m building HighTravo, a cross-platform travel app powered by Flutter with Supabase as the backend. The goal is to deliver a clean MVP that covers the full booking flow while keeping non-logged guests free to browse. Scope of the first release • Homepage – Surface Popular Destinations, Upcoming Trips, and User Recommendations in scrollable carousels fed from Supabase tables. • Trip details – Show the full itinerary, transparent pricing, and crowd-sourced customer reviews, all pulled in real time. • Booking flow – Allow users to reserve a trip, capturing traveller info and persisting the order in Supabase. A guest can explore every screen, but the moment they tap “Book now” they are prompted to sign in. • Authentication &ndas...

    $658 Average bid
    $658 การประมูลเฉลี่ย
    76 คำเสนอราคา

    I need a secure, well-structured database system dedicated to our school’s fee records. The core focus is capturing and managing payment transactions in real time, then making that information available to students and parents through a simple login interface. Key points • Database scope: fee payment transactions only (no grade or staff data for now). • Primary users: students and parents; an admin panel will still be required for me and my team to add, edit, or correct entries. • Access: web-based dashboard is preferred, yet I’m open to a lightweight API that could later feed a mobile app if you think that future-proofs the build. • Security: role-based permissions, encrypted credentials, and activity logs are must-haves. Deliverables 1. Nor...

    $494 Average bid
    $494 การประมูลเฉลี่ย
    143 คำเสนอราคา
    Vehicle Marketplace Platform Developer (Kenya)
    1 วัน left
    ยืนยันแล้ว

    Senior Full-Stack Developer Needed – Vehicle Marketplace Platform (Kenya) Project Overview: We are building Ashco Direct, a verified vehicle marketplace in Kenya focused on Cars, Trucks, Vans, and Motorcycles. Sellers will pay a listing fee via M-Pesa. Buyers will contact sellers directly. We require a professional, scalable MVP. Core Features Required: User Roles: • -Buyer • -Seller (ID verification required) • -Admin Seller Features: • -Account registration • -ID upload for verification • -Create/manage listings • -Pay listing fee (M-Pesa integration) • Featured listing options -Buyer Features: • -Search & filter vehicles • -View listing details • -Contact seller Admin Panel: • -Approve sellers • -Approve listings...

    $14230 Average bid
    $14230 การประมูลเฉลี่ย
    171 คำเสนอราคา
    QA Tester: Complete Launch Test – Swiss Classifieds Platform
    1 วัน left
    ยืนยันแล้ว

    Hier ist der Text 1:1 ohne Emojis: --- **QA Tester: Complete Launch Test – Swiss Classifieds Platform** Full end-to-end test before go-live. Paid listings in 3 tiers (Basic/Premium/TOP), public website + admin dashboard + backend. You get full access to everything: admin credentials, backend (database, storage, edge functions, logs, auth), repo. Goal: Complete test report with launch-readiness verdict. **Important** 1. Payments = TEST MODE – click "Mark transaction as paid" 2. Location = Google Autocomplete ONLY – select from dropdown, GPS-based 3. Postal code optional – some cities won't return one, not a bug 4. UI = German, report in English or German 5. Listings visible without login – verify! --- **30 Test Accounts Required** - 30 ac...

    $179 Average bid
    $179 การประมูลเฉลี่ย
    78 คำเสนอราคา

    I’m midway through an Odoo rollout and need an experienced developer to dive straight into the Sales, Inventory, Accounting, and Purchase modules—the areas I’ve already flagged as priorities. The work will centre on refining current workflows, adding new business-specific logic, and smoothing out pain points that are slowing my team down right now. You’ll be hands-on with Python for custom addons, XML/QWeb for views and reports, and PostgreSQL for the odd query-level tweak. If you’re used to working on or a similar Git-based pipeline, that will feel familiar here; every change goes through a staging branch before it touches production. Deliverables (all to be merged into our repo before sign-off): • Updated Sales, Inventory, Accounting, and Purch...

    $524 Average bid
    $524 การประมูลเฉลี่ย
    92 คำเสนอราคา
    Backend Developer (Mid-Level / Senior) — Fitness SaaS Platform
    19 ชั่วโมง left
    ยืนยันแล้ว

    We are a fast-growing startup building a gym management and fitness tracking SaaS platform. We are looking for an experienced Backend Developer to scale our existing infrastructure and ship new features. **About the Role** You will take ownership of our backend architecture, work closely with the frontend team on API integration, and help migrate legacy C#/.NET code to a modern Node.js stack. This is a long-term engagement with room to grow as the platform scales. **Core Responsibilities** - Design and build scalable backend architecture using NestJS and TypeScript - Database design and optimization with PostgreSQL + TypeORM / Prisma - Implement RESTful APIs, JWT authentication, CQRS, and Clean Architecture principles - Integrate Firebase Auth and push notifications - Set up and mana...

    $14 / hr Average bid
    $14 / hr การประมูลเฉลี่ย
    202 คำเสนอราคา

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