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...and upcoming backend and GenAI-driven projects. The ideal candidate should have strong hands-on experience in Python, FastAPI, and modern AI-integrated systems. Requirements 4+ years of hands-on experience in Python development Strong experience with FastAPI (REST APIs, async programming) Good understanding of API design, request/response schemas, and Swagger Experience working with databases (PostgreSQL/MySQL) and ORMs (SQLAlchemy) Knowledge of authentication, error handling, and logging Familiarity with clean architecture, modular design, and best coding practices Experience with Git-based workflows Good communication and documentation skills Nice to Have Exposure to Generative AI / LLM integrations Experience with multi-agent systems or orchestration frameworks (LangGraph) Kno...

...daily or weekly alert job should: Check all upcoming approved shows Compare distance from user to show using the Haversine formula Email or SMS users about shows within their radius Log alerts to avoid sending duplicates Email provider: SendGrid or Resend SMS provider: Twilio 6. Preferred Technology Stack The ideal stack (flexible based on developer experience): Tailwind CSS PostgreSQL (Supabase or RDS) Prisma ORM NextAuth for authentication Vercel Cron Jobs or an external cron system Axios + Cheerio for scraping (or Puppeteer if necessary) Alternate full-stack solutions (Laravel, Django, Express, Rails) are acceptable with justification. FEATURE SUMMARY Daily automated scrapers from multiple sources Admin approval workflow Attendee and vendor user accounts N...

...techniques strictes pour la réalisation du projet. ​ Architecture & Stack ​Application Mobile (B2C) : Développement Cross-Platform (Flutter ou React Native) pour iOS/Android. ​Plateforme Web (B2B) : Application Web React.js ou Vue.js avec tableau de bord analytique. ​Backend & Data : Python (Django/FastAPI) pour la logique algorithmique. ​Base de Données : Architecture type "Data Warehouse" (PostgreSQL + BigQuery/Snowflake) capable de gérer des millions de lignes de transactions. ​ Fonctionnalités Critiques à Développer ​Le Pipeline ETL (Extract-Transform-Load) : ​ Script automatique qui nettoie et anonymise la donnée brute de l'App B2C vers le Data Warehouse B2B. Impératif : Suppression irr&eac...

...Frontend/App: Lovable (React/Vite) Deployment: Vercel Backend/DB: Supabase (PostgreSQL) Required Tasks: H1 Dynamic Routing Bug: Currently, when a user searches for a new word, the state is not updating the H1 tag correctly. You need to ensure the search term is properly passed through the URL params and rendered in the H1 for SEO crawlers. Check the current behavior at http://aithesaurus.io. Programmatic (1M+ Pages): I am currently stuck in a Lovable error loop trying to generate a static sitemap. Because of the 1,000,000-page goal, we cannot use a static file. You must implement a Dynamic Sitemap (likely via a Vercel Edge Function or a sitemap index file) that pulls from our Supabase word list. PostgreSQL Synonym Cache: Implement a caching layer in Supabase for syn...

Project Title Full-Stack Developer/Agency for On-Demand Home Service Marketplace (iOS, Android & Web) Project Overview I am launching a new on-demand service platform that connects customers with skilled professionals for at-home services....to client locations. * Earnings dashboard and payout tracking. 3. Admin Panel (Web): * Comprehensive management of users, providers, and services. * Revenue analytics and reporting. * Automated invoicing and dispute management. Technical Requirements Preferred Stack: Flutter or React Native (Cross-platform) for mobile; Node.js or Python for the backend. Database: Scalable SQL or NoSQL (PostgreSQL/MongoDB). Security: SSL encryption, secure API endpoints, and data privacy compliance. Deliverables: Clean, commented source code and 100%...

...Java Spring Boot. 5 Debe programar las bases (el esqueleto) del proyecto. Requisitos técnicos Obligatorios 1 +10 años de experiencia en desarrollo back-end con Java/Spring Boot 2 Experiencia en implementación de SUBASTAS en tiempo real, con transmisión en vivo. 3 Dominio de Java 21+ y Spring Boot. 4 Experiencia comprobable en: Microservicios 5 Arquitectura Hexagonal+ DDD 6 Manejo avanzado de PostgreSQL. 7 Uso de Redis (cache, colas, locking). 8 Experiencia en sistemas de alta concurrencia. Deseables: Experiencia en marketplaces, subastas o sistemas en tiempo real. Conocimientos en mensajería/eventos (Kafka, RabbitMQ, etc.). Experiencia integrando SDKs de video streaming. DevOps básico: Docker, CI/CD. Experiencia en entornos cloud (AWS...

...Java Spring Boot. 5 Debe programar las bases (el esqueleto) del proyecto. Requisitos técnicos Obligatorios 1 +10 años de experiencia en desarrollo back-end con Java/Spring Boot 2 Experiencia en implementación de SUBASTAS en tiempo real, con transmisión en vivo. 3 Dominio de Java 21+ y Spring Boot. 4 Experiencia comprobable en: Microservicios 5 Arquitectura Hexagonal+ DDD 6 Manejo avanzado de PostgreSQL 7 Uso de Redis (caché, colas, locking). 8 Experiencia en sistemas de alta concurrencia. Deseables: Experiencia en marketplaces, subastas o sistemas en tiempo real. Conocimientos en mensajería/eventos (Kafka, RabbitMQ, etc.). Experiencia integrando SDKs de video streaming. DevOps básico: Docker, CI/CD. Experiencia en entornos clo...

...management. ### 3. Technical Requirements * **Design Fidelity:** You must match the Figma design [here]() with pixel-perfect accuracy. * **Frontend:** Cross-platform (React Native or Flutter or any suitable stack) for the mobile app; React or Vue for the web dashboards. * **Backend:** A robust, secure API (Node.js, Go, or Python or any) with a scalable database (PostgreSQL/MongoDB or any). * **Key Integrations:** * Google Maps API for location-based searching. * Stripe or local payment gateways for transactions. * Push notifications for booking reminders and status updates. ### 4. Deliverables 1. Source code for all three panels (User, Provider, Admin). 2. Fully configured backend and database. 3. App Store & Play Store deployment. 4. Documentation for API

...and order history. • Manufacturers manage quotes, capacity updates, and production status. • 3PL providers monitor order progress and receive shipping data directly into their WMS/TMS. Tech expectations I’m open on language and framework, but the architecture must be modular, secure, and ready for high-volume API calls. Think React or Vue on the front end, Node.js or similar on the back, PostgreSQL (or equivalent) for data, and clear documentation for all endpoints. The interface should feel light and purpose-built rather than e-commerce heavy. Deliverables 1. Clickable prototype that demonstrates the full quote-to-order journey. 2. Technical specification covering data models, key APIs, and integration points for 3PL systems. 3. MVP build (frontend, bac...

...reporting so I can track active readers, session length and popular titles • Full chapter management for every book, including draft → publish states What I expect as final deliverables 1. RESTful Spring Boot API with clean, versioned endpoints 2. A responsive admin panel (your choice of React, Angular, or Thymeleaf) tightly coupled to the API 3. Secure data layer (JPA/Hibernate with PostgreSQL or a data store you can justify) 4. Docker-ready deployment scripts plus basic CI/CD instructions 5. Clear README and endpoint documentation that my mobile team can plug into immediately I’m open to your architectural suggestions—microservices, monolith, or hybrid—so long as they keep hosting costs sane while giving us room to grow. If you have...

...then upgraded. I need my existing Odoo installation copied to a new server so that everything—core files, custom modules, configuration, and user data—works exactly as it does today. The target machine is already provisioned; what’s missing is the full Odoo stack mirrored, tested, and switched over with minimal downtime. You will handle the complete server-side setup: Python dependencies, PostgreSQL, wkhtmltopdf, Nginx reverse proxy, and SSL with Let’s Encrypt. Once the new instance is live, migrate my existing database, all attachments, settings, and core apps (Sales, Inventory, Accounting). After migration we’ll do a quick screen-share test so I can confirm that workflows, reports, and PDFs behave exactly as they do today—only faster. De...

...themes) • Plugins (paid and free) • Uploads/media • Full database dump (MySQL) • and environment configuration Requirements: • Backup must be restorable on a clean server • Include instructions on how to restore step-by-step • Backup delivered in compressed archive format • No downtime for live website ⸻ 2️⃣ Odoo Backup Create a complete Odoo backup, including: • Database (PostgreSQL) • Filestore • Custom modules • Configuration files • User roles and permissions • Scheduled actions / cron jobs Important: • Backup must be independent of current developers • Must be restorable on a fresh Odoo installation • Clear documentation on restore procedure ⸻ 3️⃣ Access & Securit...

...every day. Your toolbox on the frontend must already include React and Angular. If you also enjoy the occasional Vue.js task, that’s a pleasant bonus. On the server side we run services written mainly in Python and Java, so you should feel at home designing RESTful APIs, writing unit tests and deploying through common CI/CD pipelines for at least one of those languages. Data lives in MySQL, PostgreSQL and MongoDB, and you’ll be expected to model schemas, tune queries and handle migrations confidently. Most of the current team sits in Europe, while I’m in Canada, so an overlapping schedule in either of those regions will make collaboration smooth. Five or more years delivering production-ready web applications is the level I’m after. Deliverables and ...

...functional reference. This is not a beginner or learning project. Apply only if you have proven experience with offline-first mobile apps and GPS capture. Preferred Tech Stack Mobile App Flutter (Android first) SQLite (Drift / Floor) Riverpod (or equivalent) Flutter Intl / ARB for localization Platform Channels to reuse existing Java code for: Printing WhatsApp messaging Backend Supabase (PostgreSQL, Auth, Storage, Edge Functions) Relational schema (mandatory) DevOps GitHub (repository owned by us) GitHub Actions for CI/CD Daily APK builds If you propose an alternative stack, you must justify offline sync and relational geo-hierarchy support. User Roles and Features Super Admin Create and manage campaigns Define geo-unit hierarchy per campaign (e.g., Campaig...

...Carbs, Fat) AI-based food scanning using image recognition Automatic nutrition calculation from scanned food Manual food and meal entry Meal-wise tracking (Breakfast, Lunch, Dinner, Snacks) Daily and weekly nutrition User authentication and profile management Technology Stack Frontend React Native (Android and iOS) Backend Node.js REST APIs Database (MongoDB / Firebase / PostgreSQL) AI and Integrations Food recognition or image scanning APIs Nutrition data integration Cloud storage for images Developer Requirements Strong experience with React Native Good understanding of Node.js and REST API development Experience integrating third-party APIs Familiarity with AI or image processing APIs is a plus Ability to write clean, scalable, and maintainable code ...

SaaS platform for property management, designed for Owners, Tenants, Property Managers, and Vendors. The platform includes, list property, rent automation, maintenance workflows, messaging, digita...(Owner, Tenant, Manager, Vendor) Online rent payments, Stripe subscription billing & ACH processing Maintenance ticketing with vendor assignment and approvals Messaging, notifications, and document storage Reporting, rent roll, accounting logic, and property insights Core Tech Stack Language: TypeScript Framework: (React) Backend: API Routes / Server Actions Database: PostgreSQL ORM: Prisma Authentication: NextAuth or Clerk Payments: Stripe File Storage: Supabase Storage or AWS S3 (private buckets w/ signed URLs) Hosting & Deployment: Vercel UI: TailwindCSS + Sh...

...Timeline: Kickoff immediately. Delivery by Feb 28th. Status: We are a 501(c)(3) nonprofit. How to Apply (Please Read Carefully) We will not respond to generic copy-paste proposals. To be considered, please reply with: The "Password": Start your proposal with the phrase "I am ready to Mow." Your Stack Experience: Confirm your specific experience with Node.js/Express APIs, SQL databases (MySQL or PostgreSQL), and Twilio API. Approach: Briefly explain how you would handle "Group Event" privacy—specifically, how you ensure a homeowner's address is visible to the group lead but hidden from the public feed. Upon selection of a shortlist, we will share the full "Master Technical Blueprint" for a final accurate quote....

...production-grade code. Your primary mission is to refine and implement every step of the multi-party transaction lifecycle—account onboarding, destination charges, transfers, refunds, tax handling—and wire it all together with idempotent webhooks. The goal is a workflow that remains accurate even when a request is repeated, interrupted, or partially processed. Stack details • Node.js / TypeScript, PostgreSQL, Prisma on the backend • React for the dashboard (a junior dev can handle UI tweaks, docs, and other non-critical tasks if you prefer to delegate) Core deliverables (senior scope) • A detailed technical specification for the payment workflow, covering success, failure, and edge-case paths • Secure, fully-tested API endpoints and webh...

...Shadcn/ui Backend: Node.js, Express, TypeScript Database: PostgreSQL with Drizzle ORM Authentication: Session-based with Scope of Work: Set up AWS infrastructure (EC2, RDS, or ECS/Fargate) Configure PostgreSQL database on RDS Set up environment variables and secrets management (AWS Secrets Manager) Configure SSL/TLS certificates Set up domain and DNS routing Deploy the application with proper CI/CD pipeline Configure file storage (S3) to replace current object storage Ensure all API integrations work: OpenAI API (AI features) Resend (email) Stripe Connect (payments) Meta Ads API (ad spend tracking) GoHighLevel webhooks Requirements: Experience with AWS (EC2, RDS, S3, Route53, or ECS) Node.js/Express deployment experience PostgreSQL database management SSL/HTTPS c...

...end-to-end development of the Zema Language Learning App, a mobile-first application designed for teaching Tigrinya through interactive lessons, Geʽez tracing, and gamification. The project will deliver a robust, offline-capable infrastructure using Flutter and a modern backend stack. Key Deliverables: 1. User Authentication – Secure login/signup and profile management using , PayloadCMS, and PostgreSQL. 2: Admin Panel & Backend – A user-friendly dashboard for managing 32 lessons, media assets (audio/images), and API endpoints. 3: Figma UI/UX Design – High-fidelity wireframes and interactive prototypes for the entire app flow. 4: Mobile App Core & Offline Engine – Cross-platform (Androind & iOS) Mobile app featuring an interactive Geʽez tr...

Requirement: Pre-Built Indian Payroll & Compliance HRMS (React + .NET Core Only) We are looking for a ready-made / pre-built HRMS application with Indian Payroll and Statutory Compliance, developed strictly in React (frontend) and .NET Core (backend). Mandatory Technical Stack Frontend: React.js Backend: .NET Core (API-based architecture) Database: SQL Server / PostgreSQL Deployment: Cloud-ready (Azure / AWS preferred) Mandatory Pre-Built Functional Modules The application must already be developed and running. We are NOT looking for fresh development or starting from scratch. 1. Payroll (India Specific – Pre-Built) Salary structure configuration Monthly payroll processing Payslip generation PF (EPFO) calculation ESI calculation Professional Tax TDS calcul...

We have a large set of Excel files extracted from a third-pa... phone numbers, URLs, etc.). Deliver the final dataset in a usable format (Excel, CSV, or database). Provide scripts or documented steps for future processing. Deliverables: Cleaned and consolidated dataset. Automation script or documented process. Summary report of actions taken. Skills Required: Expertise in Excel/CSV handling and data cleaning. Familiarity with database loading (MySQL/PostgreSQL) is a plus. Additional Information: NDA required. The freelancer must be willing to work on-site at our Pune office location. Remote work will not be considered. Please include in your proposal: Your approach to handling files without headers. Tools and techniques you will use for efficient processing. Estimated timeline...

...WebSockets Asynchronous multiplayer logic Server-side score validation Wallet & Payments Wallet system (deposit / win / withdraw) Country-based payment gateway integration Transaction logs & audit trails Notifications Firebase Cloud Messaging (FCM) Background & closed-app notifications Security / Anti-Fraud One-attempt-per-game logic Pool-based competition system Abuse & retry prevention Database PostgreSQL / MySQL Redis (or similar) for caching / sessions PROJECT COMPLEXITY (BE HONEST WITH YOURSELF) This project includes: Real-money logic Refund & cancellation flows Multi-level difficulty engine Asynchronous competition pools Public winners & payout transparency If you have never done this level of system, do not apply. TIMELINE EXPECTATION MVP required A...

...payroll processing, and leave tracking, all secured by role-based permissions. • CRM: contact and deal pipelines plus an AI assistant that can summarise interactions or draft follow-up emails. • Accounting: double-entry ledger, invoicing, and expense tracking, with chatbot-driven report generation. Technical expectations – Python 3.11+ on the back end, preferably FastAPI or Django, wired to PostgreSQL. – Front-end delivered with React, Vue, or a similarly modern JS framework. – Langchain integrated against OpenAI (or other LLMs) for document parsing, conversational search, and automatic insight generation. – Clean, modular code in a Git repo, complete with unit tests and Docker files for local spin-up. Deliverables 1. Running web ...

...Industrial IoT MVP Development – FastAPI Backend + React Dashboard + n8n Automation Project Description We are looking for developer(s) to build an MVP of an industrial IoT platform focused on the aquaculture sector. The initial goal is to have a functional system using synthetic data for commercial demonstrations. Technology Stack (Defined): Backend API: FastAPI (Python) Database: PostgreSQL + TimescaleDB Data Ingestion: MQTT / HTTP Automation: n8n (open source) Frontend: React Real-time: WebSocket / SSE Infrastructure: Docker, Hetzner Cloud Expected Deliverables 1. Core Backend (FastAPI) REST API for sensor data ingestion Data validation and normalization Multi-tenant architecture (client isolation) Data traceability Auth...

โปรดลงทะเบียน หรือเข้าสู่ระบบ เพื่อดูรายละเอียด

โปรดลงทะเบียน หรือเข้าสู่ระบบ เพื่อดูรายละเอียด

Platform Architecture Requirement The system must be enterprise-grade, scalable, and secure. Preferred Tech Stack (Must Have) Mobile App: Flutter (Preferred) / React Native Single codebase for Android & iOS Backend: Node.js (NestJS / Express) Microservices-ready architecture Database (Large Data Handling): PostgreSQL / MySQL (Primary – structured data) MongoDB (User activity, logs, flexible schemas) Redis (Caching, sessions, high-speed reads) Cloud & Infra: AWS / GCP / Azure Auto-scaling enabled Load balancer + CDN Object storage (AWS S3 equivalent) Admin & Franchise Panels: Web-based dashboard (React / Angular) Role-based access control Key Functional Requirements Franchise Model Support Central Admin (Super Control) Franchise Admin (City / Zone wise) Franchise-...

...and DELETE queries to handle routine maintenance Please deliver: 1. The cleaned, fully-formatted Excel file with all requested charts in place. 2. A .sql file (or equivalent) containing the final schema plus the tested queries. 3. A brief read-me so I know how to run everything end-to-end. If you’re comfortable jumping between Microsoft Excel and a standard relational engine (MySQL, PostgreSQL or SQL Server—all fine), and you can hit a one-day turnaround, this should be a quick win for both of us....

...via leurs ventes de musique Le freelance doit être capable de : • penser onboarding des artistes • comprendre les logiques de bêta, early adopters, ambassadeurs • proposer une architecture prête à accueillir cette communauté ⸻ Stack technique (ouverte aux propositions) • Frontend : React / / Flutter (ou équivalent) • Backend : Node.js / Laravel / Django • Base de données : PostgreSQL / MongoDB • Stockage audio & vidéo : AWS / Firebase / équivalent • API propre et documentée • Architecture scalable ⸻ Profil recherché Je recherche un freelance qui : A déjà travaillé sur : • applications sociales • plateforme...

...backend en Java Spring Boot. 4 Debe programar las bases (el esqueleto) del proyecto. NO DEBE TOMAR MUCHO TIEMPO. Requisitos técnicos Obligatorios 1 +10 años de experiencia en desarrollo back-end con Java. 2 Experiencia sólida como Tech Lead o Senior Architect. 3 Dominio de Java 17+ y Spring Boot. 4 Experiencia comprobable en: Microservicios 5 Arquitectura Hexagonal+ DDD 6 Manejo avanzado de PostgreSQL. 7 Uso de Redis (cache, colas, locking). 8 Experiencia en sistemas de alta concurrencia. Deseables: Experiencia en marketplaces, subastas o sistemas en tiempo real. Conocimientos en mensajería/eventos (Kafka, RabbitMQ, etc.). Experiencia integrando SDKs de video streaming. DevOps básico: Docker, CI/CD. Experiencia en entornos cloud (AWS / OVH)...

...should offer full control over customers, providers, services, categories, products, bookings, orders, verification approvals, complaints, support tickets, notifications, reports, analytics, and system settings, with roles and permissions included. The system should be built using Flutter or React Native for mobile, Node.js / Python / Laravel for the backend, a secure REST API with JWT, and MySQL/PostgreSQL/MongoDB for the database. Hosting will be on AWS/Azure/Google Cloud with integrations including Firebase notifications, online payments (Stripe, Paymob, HyperPay), SMS gateway, and Google Maps. Final deliverables include both mobile apps (customer & provider), the marketplace module, admin dashboard, backend & APIs, verification and booking systems, payments integrat...

...build a WhatsApp-based Service Marketplace ("Super Agent"). We have the full logic and flow ready. We need someone to execute the code efficiently using Free-tier technologies to keep costs low. ​Budget: Competitive/Low (Ideal for freelancers looking for a long-term portfolio project). Timeline: 2 - 3 Weeks. ​Technical Stack (Mandatory): ​Backend: Python (FastAPI or Flask). ​Database: Supabase (PostgreSQL) – Must use PostGIS for location calculations. ​Platform: WhatsApp Cloud API (Direct Meta integration). ​AI: OpenAI API (for intent recognition). ​Key Features to Build: ​1. Dual User System (Role-Based) The bot must recognize two types of users on the same number: ​Customer: Sees the menu (Book Driver, Rent Flat, Visa Services). ​Vendor (Driver/Agent): Sees a d...

We have a large set of Excel files extracted from a third-party source. These files currently have no headers and inconsistent formatting. We require an experienced data p... phone numbers, URLs, etc.). Deliver the final dataset in a usable format (Excel, CSV, or database). Provide scripts or documented steps for future processing. Deliverables: Cleaned and consolidated dataset. Automation script or documented process. Summary report of actions taken. Skills Required: Expertise in Excel/CSV handling and data cleaning. Familiarity with database loading (MySQL/PostgreSQL) is a plus. Additional Information: NDA required. Please include in your proposal: Your approach to handling files without headers. Tools and techniques you will use for efficient processing. Estimated timeline...

...run flawlessly on my own VPS. You will receive: • the Android Studio project (Java/Kotlin) • admin panel files • SQL dump and environment variables • brief setup notes from the previous developer Your job is to: 1. Spin everything up on my VPS (Ubuntu 22.04 with root access; I can switch distro if you prefer). 2. Configure the web server stack (Nginx or Apache, PHP-FPM, MySQL/PostgreSQL as required by the code). 3. Secure the installation with HTTPS (Let’s Encrypt is fine), a properly-hardened firewall, basic intrusion-prevention rules and updated dependencies. 4. Connect the Android app to the live API endpoint, compile a signed release build and confirm that real-time game data flows end-to-end. 5. Hand over a short deployment doc...

...2. A test SMS sent to that number shows up in the UI and through the API within five seconds. 3. The rental expires correctly when I release the number, freeing it for the next customer. 4. All critical actions are logged, and the platform remains responsive with 1 000 concurrent users. Tech stack is flexible, but I lean toward a Node.js or Python back end, React or Vue on the front, and PostgreSQL for storage—open to better suggestions if they improve scalability and cost. If you’ve built anything similar or have existing carrier relationships, tell me about it and we can move fast....

I need a complete website built around display advertising for products. The core idea is simple: advertisers create visually engaging product ads and customers browse, click, and interact with them. To make that work I’ll need ...functional website front-end and back-end • Advertiser account area with campaign upload, image/video handling, targeting options, and performance stats • Customer account area for registration, profile management, and tailored ad display • Admin panel for user, ad, and payment oversight • Basic analytics and reporting (impressions, clicks, CTR) Frontend: React.Js Backend: Python (Djang) DB: PostgreSQL If you have experience in ad-tech integrations, responsive UI design, and secure user authentication, let’s talk...

...We are not building a mobile app. This is a pure WhatsApp Automation project using official APIs. Core Technical Requirements: WhatsApp Business API Integration: Experience with BSPs (like Interakt, Wati, or Twilio). AI Integration: Connect OpenAI (GPT-4) to parse unstructured user messages (e.g., extracting date, location, and intent from chat). Database Management: Proficiency in Supabase (PostgreSQL) to store user data and active requests. Geolocation Logic: Ability to filter database entries based on "Location Pins" (Lat/Long) shared on WhatsApp. Broadcast & Timer Logic: Create a function where a request is sent to a group of users, and the first one to click "Accept" gets the job. Tech Stack: Frontend: WhatsApp Interface Backend: Node.js / Python (Fas...

Project Description I am looking for an experienced n8n + DevOps automation developer to se...Reliability & Logic *Proper status checks (e.g., PDF generated, email sent) *Idempotent workflow (no duplicate emails) *Error handling and logging Future Scope (Not required immediately, but should be supported) *Ability to extend the workflow to WhatsApp messaging in the future using APIs (WhatsApp Business Cloud / Twilio / Gupshup) Required Skills *n8n (self-hosted) *Docker & VPS server setup *PostgreSQL *Google Sheets, Google Drive API *HTTP APIs & Webhooks *ZeptoMail API *Basic DevOps & security knowledge Deliverables *Fully working self-hosted n8n setup *End-to-end automated workflow as described *Basic documentation / handover instructions *Workflow tested with mult...

I need a single web-based dashboard that lets commercial facility managers see, at a glance, how each of their solar PV systems is performing. The interface must pull live data through the public or partner APIs of SolisCloud, Fusion Solar, Growatt, Solar Analytics, iSolarCloud and Wattwatchers, then store that data in a database I can host myself—PostgreSQL or another non-proprietary option preferred so I can avoid ongoing subscription fees. For the first release I only require on-screen visualisation (no PDF or emailed reports). The screen should surface the core indicators we usually follow—energy production, energy consumption and overall system efficiency—while leaving room for us to add or hide additional metrics later. Charts, comparative widgets and clear ...

...⸻ 7. AI & Smart Features • Virtual hairstyle try-on (photo upload + canvas) • Smart barber matching (recommendations) • Freshness meter (gamified rebooking) • AI-based admin selection for competition regions ⸻ Tech Stack (Must Be Used) • Frontend: React + TypeScript + Vite • UI: Tailwind CSS + shadcn/ui • State/Data: TanStack React Query, React Hook Form + Zod • Backend: Supabase (PostgreSQL, Auth, Realtime, Storage) • Server Logic: Supabase Edge Functions • Mobile: Capacitor (Android & iOS) • Notifications: Push, email, SMS • Security: Strong Row Level Security (RLS) ⸻ Expectations • Build on top of the existing APK • Clean, scalable, production-ready code • Mobile-first, smoot...

JOB OPPORTUNITY WhatsApp Appointment & Communication System Developer We are seeking a skilled software developer or development team to build a WhatsApp-based Appointment & Communicati...availability & schedule management • View, edit, and cancel appointments • Manual booking override for reception staff • Basic appointment reports (daily / weekly) Required Skills • WhatsApp Business API (Meta / Twilio / Gupshup / 360dialog) • Backend development (Node.js or Python) • Chatbot logic (Rule-based / Dialogflow / Rasa) • Frontend dashboard (React / Vue / Web UI) • Database management (PostgreSQL / Firebase) • Facebook Click-to-WhatsApp Ads integration • QR Code → WhatsApp deep linking • Secure authentication & r...

I keep hitting a connection-timeout message whenever I try to reach my PostgreSQL database from the terminal with psql. The database is part of a Dockerised backend; the application layer spins up fine, yet a direct CLI connection fails as though the server does not exist. I have not even confirmed whether the PostgreSQL container is actually running because I am unsure of the correct Docker commands to use or the places to look for port-mapping issues. What I need is straightforward: trace the reason the terminal session can’t find the server, bring the database online (or exposed) if it is down or mis-configured, and leave me with the exact commands or config edits required so I can repeat the process on other environments. Deliverables • Working psql connect...

**Tech Stack:** 16, Supabase (PostgreSQL), Twilio SMS, Resend Email, Stripe **Priority:** Fix courier SMS notifications --- ## BUG #1 - CRITICAL: Courier Not Receiving SMS **Problem:** When customers confirm delivery time on tracking page, couriers don't receive SMS notification. **Location:** `app/track/[orderId]/`, function `confirmTimeSlot` (line ~200-250) **Details:** - Table: `courier_applications` (stores courier data) - Orders table: `delivery_requests` - Query: `.from("courier_applications").eq("id", order.assigned_courier_id)` - SMS sent via: `/api/send-notification` **Need to verify:** - Database schema (`courier_applications` columns: id, phone, email, full_name, status) - Relationship between `delivery_requests.assigned_courier_id` and ...

...employee performance numbers. • Auto-generated reports that mirror (or improve on) our current Excel layout, with options to view on-screen, print, or export to PDF/Excel. • A dashboard that highlights variances in inventory, red-flags cash shorts/overs, and shows trend lines for staff performance. • Searchable history so we can pull any past day’s close-out in seconds. Tech is flexible—MySQL/PostgreSQL, PHP-Laravel, Node, or Python-Django all work as long as the finished app is responsive, easy to maintain, and runs on a standard LAMP/VPS stack. Acceptance criteria 1. Managers and employees can create, edit, and save a full closing entry without touching Excel. 2. Reports match our existing calculations to the cent and flag discrepancies au...

...(email + optional SMS), and support full/partial Cancellation and refund processing that syncs with the relevant provider and returns funds through the original payment gateway. Access model Three distinct roles—Admin, Travel Agent, and Customer—will interact with the system. Please follow RBAC best practices and keep the policies configurable. Tech expectations • Node.js 18+ with NestJS • PostgreSQL (TypeORM or Prisma) • Redis for queues/caching • Jest unit tests and Postman/Swagger docs • Docker-based dev environment Deliverables 1. Modular NestJS codebase with environment-based configs 2. Integration layers for each external service, fully test-covered 3. Booking-workflow service with state machine or equivalent logic 4. RB...

..."Gift Finder" Quiz/Filter (Occasion + Recipient + Budget). • Occasion-based landing pages (Valentine’s, Diwali, Anniversary). 4. Preferred Tech Stack • Option 1 (Preferred for Speed): Shopify (Liquid/Hydrogen) with custom app integrations. • Option 2 (Preferred for Scaling): / React with a headless CMS (like Sanity or Strapi) and a robust backend (Node.js/Express). • Database: MongoDB or PostgreSQL. • Integrations: Razorpay/Stripe (Payments), Shiprocket/Nimbuspost (Logistics), Interakt/AISENSY (WhatsApp Business API). 5. Design & Aesthetic Requirements • Vibe: Warm, premium, trustworthy, and "Indian Modern." • Color Palette: [e.g., Deep Teal & Champagne Gold / Soft Rose & Slate Grey]. • Mobile-First: 9...

...lab bench and streams the resulting measurements into a PostgreSQL back-end. What I need now is a specialist who can tighten the link between the physical devices and a truly high-volume data pipeline. The hardware side The application already communicates with multiple sensor-laden PCBs over standard interfaces (USB-TTL and TCP sockets). Your task is to refine those drivers so they stay rock-solid during long endurance tests—handling hot-plug events, reconnection logic and precise timing so no sample is lost. The data side We routinely push hundreds of thousands of records per hour. I need efficient data-transformation routines, real-time monitoring of pipeline health and bullet-proof error handling/recovery. Our stack is PostgreSQL 14 on Windows; feel free to...

... 5. Scheduling & Availability - Calendar integration - Availability tracking for talent - Automated scheduling suggestions 6. Admin & Permissions - Role‑based access control - Team management - Audit logs --- Technical Requirements Ideal candidates should have experience with: - Frontend: React, Vue, or similar - Backend: Node.js, Django, Laravel, or similar - Database: PostgreSQL or MongoDB - Cloud: AWS, GCP, or Azure - Bonus: Experience with CRM systems, ATS platforms, or casting tools - Optional: AI/ML for talent matching or auto‑tagging --- Nice‑to‑Have Skills - UI/UX design for dashboards and workflow tools - Experience with media upload pipelines (images, video, audio) - Knowledge of casting, HR, or talent management workflows ...

Our team is midway through building a Electronic Health Record (EHR) platform and the PostgreSQL layer now needs an expert touch. The schema has grown organically; I need someone with 5+ years of solid PostgreSQL experience who can step in, refine the data model, and leave us with a fast, future-proof database. Your first task will be to review the existing ERD and propose improvements that align with our integration workflows. From there, you’ll redesign tables, constraints, and indexes where necessary, write or refactor the complex SQL that feeds our pipelines, and tune the engine so queries fly. Back-ups and routine maintenance scripts also need tightening to guarantee reliability once we go live. I’m working on a fixed, project-based arrangement and expect c...