Elasticsearch Professionals For Hire
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Hire umg536
Modular Solutions delivers advanced Engineering, AI/ML, Embedded Systems, and IoT solutions for startups, enterprises, researchers, and industrial clients worldwide. We transform complex ideas into production-ready systems — from AI platforms and automation tools to embedded hardware, enterprise software, industrial...Modular Solutions delivers advanced Engineering, AI/ML, Embedded Systems, and IoT solutions for startups, enterprises, researchers, and industrial clients worldwide. We transform complex ideas into production-ready systems — from AI platforms and automation tools to embedded hardware, enterprise software, industrial controls, simulations, and engineering designs. Our expertise combines Artificial Intelligence, Machine Learning, Computer Vision, Deep Learning, Data Science, Analytics, and Automation with strong software engineering capabilities in Python, C/C++, Java, C#, .NET, PHP, JavaScript, SQL, MATLAB, Simulink, and Linux-based systems. On the hardware side, we specialize in Embedded Systems, IoT Devices, FPGA/Verilog/VHDL, PCB Design, Raspberry Pi, Arduino, ARM development, RF systems, electronics, firmware, industrial automation, sensor integration, DSP, and hardware/software interfacing. We also provide Mechanical, Electrical, Civil, and Structural Engineering services including AutoCAD, Civil 3D, SolidWorks, CAD/CAM, Product Design, 3D Modelling, Simulation, Renewable Energy systems, and technical feasibility analysis. Our experience includes: • AI-powered analytics and automation platforms • Facial Recognition and OpenCV systems • Enterprise SaaS and backend platforms • Industrial automation and control systems • FPGA and embedded hardware development • MATLAB/Simulink modeling and simulation • IoT evaluation and sensor systems • CAD drafting and engineering design • Unity 3D and simulation applications • Data analytics and statistical analysis • Research, technical writing, and documentation We also support clients with Project Management, Business Analysis, Finance, Accounting, Bookkeeping, QuickBooks reconciliation, Reporting, Scientific Research, Research Writing, Technical Writing, and enterprise consulting. Our technical stack and domains include: AI & Machine Learning | Deep Learning | Neural Networks | Computer Vision | OpenCV | Data Science | Big Data | Statistical Analysis | SPSS | R Programming | Python | MATLAB | Simulink | Algorithm Development | Data Mining | Text Mining | C Programming | C++ | Java | C# | PHP | JavaScript | SQL | .NET | Software Architecture | Linux | Web Development | Electronics | Electrical Engineering | FPGA | Verilog/VHDL | Embedded Systems | IoT | Arduino | Raspberry Pi | ARM | PCB Design | RF Communications | DSP | CAD/CAM | AutoCAD | SolidWorks | Mechanical Engineering | Civil Engineering | Structural Engineering | Product Design | 3D Modelling | Unity 3D | Technical Writing | Research Writing | Project Management | Finance | QuickBooks | Business Analysis Clients choose Modular Solutions for strong communication, fast execution, technical depth, and the ability to solve complex engineering and software challenges under tight deadlines. We focus on delivering reliable, scalable, and production-ready solutions tailored to each client’s goals. less -
Hire SigmaVisual
My main area of expertise includes Data Engineering (Small or Big Data level), Data Mining, ETL/ELT Data Pipelines, Data Automation and Automated Bots/Crawlers. I have experience of handling up to 100s of billions of records and 100s of TBs of structured and unstructured data; migration to Big Data/SQL data stores and...My main area of expertise includes Data Engineering (Small or Big Data level), Data Mining, ETL/ELT Data Pipelines, Data Automation and Automated Bots/Crawlers. I have experience of handling up to 100s of billions of records and 100s of TBs of structured and unstructured data; migration to Big Data/SQL data stores and handling real-time data streams. I have experience of large scale data collection/scraping from web, I developed countless crawlers in past and several includes data collection up to 100s of millions of records. I also have a strong software engineering background and have experience in web development (MVC frameworks, Custom Development). I have skills to develop from scratch and customize exiting software/web applications. Other areas of experience includes Full Stack Data Science (Machine Learning/Deep learning). I have solution providing skills and can adjust myself to any technical stack, programming language or framework to provide the solution. Following is a brief list of technical stacks, programming languages and tools that I have expertise or used in past: Languages: Python (DJango, Flask), PHP (Laravel, Yii, Zend), Javascript (Angular, Typescript, Vue.js, Node.js), Java, C/C++, Perl, ASP, Matlab ------------------ Databases/Data Streaming: PostgreSQL, MySQL, MariaDB, SQL Server, SSIS, Oracle, NoSQL (Redis, HBase, Hive, MongoDB), Kinesis, Kafka, RabbitMQ, Solr ------------------ Big Data Ecosystem: Hadoop, HBase, Athena/Hive, Spark, Redshift ------------------ Cloud: AWS (EC2, ECS, RDS, S3, Redshift, Kinesis, ElastiCache/Redis, Lambda, Cloudwatch), GCP ------------------ Data Science/AI: Machine Learning (Classification, Clustering, Regression, SVM, K-NN, Naive Bayes, Random Forest, Linear Regression, Auto Regression), Deep Learning (Autoencoders, Stacked Autoencoders, CNN etc), Scikit-Learn, Scipy, Pandas, Data Wrangling, Web Scraping, Crawlers ------------------ Customization Experience: Opencart, Magento, Wordpress, Drupal, Zencart, other open source/custom made web applications ------------------ Other Skills: DevOps, CI/CD, CircleCI, Ansible, Docker, Deployer, Datadog, Openwhisk, Celery, Nutch, Thrift, Selenium, Jupyter Notebook, Git, REST Apis, SSH, TDD, Robotics, Good in adopting new stacks ------------------ Management: Agile, Scrum, Jira, Trello less -
Hire rashidamjad
Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS &...Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS & UI/UX: PHP, Python, JavaScript, TypeScript, React, Node.js, Laravel, Django, Next.js, .NET, SQL, WordPress, Webflow, Wix, responsive websites, dashboards, portals, APIs and UI/UX. eCommerce & Payments: Shopify, WooCommerce, Magento, PrestaShop, Stripe, PayPal, subscriptions, checkout, shipping, inventory and ERP/accounting integrations. Mobile & Desktop Apps: Android, iOS, Flutter, React Native, Python, .NET/WPF, Electron.js, APIs, databases and integrations. Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, GitHub, GitLab, Linux, Windows Server, Nginx, Terraform, Ansible, VPS, monitoring, backups and security. Automation & Integrations: Zapier, n8n, Make.com, Power Automate, Airtable, Brevo, Stripe automation, APIs, webhooks, bots, CRM automation and data sync. Enterprise Solutions: Odoo, Zoho, Salesforce, Dynamics 365, SharePoint, Power BI, Power Apps, Microsoft 365, CRM/ERP, Business Intelligence and dashboards. Accounting, Payroll & Excel: QuickBooks, Xero, payroll, invoicing, Teams integrations, Excel, VBA, Power Query, dashboards, financial models, reporting and API/database integrations. Electronics, PCB, Embedded & IoT: PCB design/layout, schematics, firmware, STM32, ESP32, Arduino, Raspberry Pi, ARM, RTOS, I2C, SPI, UART, BLE, WiFi, MQTT, NFC, LoRa, Zigbee and RF. PLC, SCADA & Industrial Automation: PLC, SCADA, HMI, instrumentation, motor/control systems, robotics, machine vision, motion control and equipment integration. Mechanical CAD/CAM & CNC: SolidWorks, Fusion 360, AutoCAD, CATIA, Siemens NX, Mastercam, 3D CAD, assemblies, enclosures, sheet metal, DFM, CNC, toolpaths and G-code. AI & Computer Vision: Generative AI, LLMs, AI agents, chatbots, Machine Learning, TensorFlow, OpenCV, OCR, object detection, image recognition and video processing. Blockchain & Trading: Smart contracts, DApps, Ethereum, BSC, Polygon, Solana, MT4/MT5, MQL4/MQL5, TradingView, Pine Script, Binance, broker APIs, EAs and trading bots. Marketing & Automation: Google Ads, conversion tracking, Google Analytics, technical SEO, YouTube optimization, TikTok content, video editing, Brevo, HubSpot, Zoho, Zapier, Make.com, Airtable, email campaigns and lead workflows. Networking & Communications: VPN, firewall, SSL, DNS, Active Directory, OpenVPN, VoIP, SIP, Asterisk, PBX, WebRTC, virtualization and system administration. Team & Delivery: Our multidisciplinary team covers software, cloud, electronics, embedded systems, automation and engineering. I personally oversee communication, technical direction and delivery. Post-Delivery Support: Documentation, fixes and ongoing support are available after handover. less -
Hire AwaisChaudhry
ZAWN Tech is a full-service IT & Engineering company founded in 2014, delivering complete digital and hardware solutions for startups and enterprises worldwide. We operate with an in-house team of specialized developers, designers, marketers, and engineers across multiple domains, allowing us to handle both software...ZAWN Tech is a full-service IT & Engineering company founded in 2014, delivering complete digital and hardware solutions for startups and enterprises worldwide. We operate with an in-house team of specialized developers, designers, marketers, and engineers across multiple domains, allowing us to handle both software and embedded engineering projects with proven real-world experience. Our certified team combines deep technical knowledge with hands-on delivery to build fast, secure, scalable, and user-friendly solutions. Core Expertise Web & SaaS Development: Full-stack development using PHP, WordPress, Python, React, Node.js, Angular.js, Electron.js, Laravel, Django, and Next.js. Integration with Odoo, Bubble.io, Zoho, Webflow, and custom business platforms. Website Design & UI/UX: Website Design, Web Design, Web Development, Graphic Design, Logo Design, User Interface (UI) Design, User Experience (UX) Design, Wireframing, Prototyping, Responsive Design, HTML/CSS, Squarespace, Landing Pages, and conversion-focused business websites. eCommerce: Shopify, WooCommerce, Magento, Amazon, and custom marketplace platforms with payment, shipping, ERP, and inventory integrations. Blockchain: Metaverse, Web3, NFTs, NFT Games, Smart Contracts, Arbitrage & Sniper Bots, DEX / DApp Development (Ethereum, BSC, Polygon, Solana, WAX). Mobile Apps: Native and cross-platform development (Flutter, React Native, Android, iOS). AI & Computer Vision: Machine Learning, Chatbots, GPT integrations, TensorFlow, OpenCV, OCR systems, automation, and intelligent business solutions. Game Development: Unity 3D, Unreal Engine, WebGL, multiplayer games, blockchain gaming, and AR/VR experiences. Hardware & IoT (In-house Team): Electronics, Microcontrollers, PLC & SCADA, Electrical Engineering, Embedded Systems, Automation, Arduino, Raspberry Pi, ESP32, MATLAB, robotics, and control systems. Trading EA, Bots & Automation: MQL, MT4/MT5, TradingView, Binance, IBKR, algorithmic trading systems, indicators, EAs, and trading bots. Enterprise & Business Solutions: CRM systems, ERP platforms, Odoo customization, Salesforce, Microsoft Dynamics 365, SharePoint, Power BI, Power Apps, workflow automation, business process optimization, reporting dashboards, inventory management, data processing, business intelligence, and enterprise software integrations. Digital Marketing & SEO: Search Engine Optimization (SEO), Technical SEO, Keyword Research, Content Strategy, Social Media Marketing, Email Marketing, Website Optimization, Analytics, Brand Management, Content Creation, and digital growth strategies. Customer Support : Customer Support, Customer Service, Virtual Assistant Services, Call Center Operations, Telemarketing, VoIP Solutions, Asterisk, PBX , SIP With 300+ recommendations and over a decade of experience, we turn complex ideas into reliable, production-ready solutions delivered with clear communication, transparent processes, and long-term support. less -
Hire flapjakc
MapleStack builds fast, reliable web and mobile applications end to end - from architecture through launch. What sets us apart: Full-stack range - 8+ years across SaaS platforms, e-commerce, and AI-integrated web apps. Core stack: WordPress, WooCommerce, Shopify, PrestaShop, Laravel, Node.js, React, and Next.js,...MapleStack builds fast, reliable web and mobile applications end to end - from architecture through launch. What sets us apart: Full-stack range - 8+ years across SaaS platforms, e-commerce, and AI-integrated web apps. Core stack: WordPress, WooCommerce, Shopify, PrestaShop, Laravel, Node.js, React, and Next.js, plus REST API integrations, payment gateways, headless CMS, and custom CRMs. Business-first approach - With a Bachelor of Commerce (Marketing) and a BSc in Psychology, we understand user behavior and business strategy, not just code. Certified professional - Google Ads Search Certified, Google Analytics Qualified, and Microsoft 365 SMB Masters Sales Professional. Speed and quality - We deliver quickly and aim to exceed expectations on every build, with clean, maintainable code. If it's technically possible, we can build it - from your first idea to a live product. less -
Hire mdmanouwer
I architect and deliver secure, scalable platforms across Drupal, WordPress/WooCommerce, cloud/DevOps and AI/LLM. With 14+ years of hands-on experience, I take ownership from solution architecture and development through infrastructure, security, performance, deployment and production support. My advantage is...I architect and deliver secure, scalable platforms across Drupal, WordPress/WooCommerce, cloud/DevOps and AI/LLM. With 14+ years of hands-on experience, I take ownership from solution architecture and development through infrastructure, security, performance, deployment and production support. My advantage is combining application engineering, cloud infrastructure and AI into one reliable production solution. Clients gain one senior technical partner instead of coordinating separate CMS, backend, DevOps and AI specialists. CORE SERVICES • Enterprise Drupal and WordPress architecture and development • Drupal 6–11 migrations, upgrades, custom modules and integrations • WooCommerce B2B/B2C stores, plugins, checkout and payments • AWS, Azure and GCP architecture, migration and optimization • Linux, Docker, Kubernetes, Terraform, Ansible and CI/CD • Core Web Vitals, Redis, CDN, database and server optimization • Security hardening, WAF, backups and disaster recovery • AI/LLM applications, RAG assistants, AI agents and automation,MCP • REST API, JSON:API, GraphQL, webhooks and system integrations • Analytics and SEO DRUPAL & WORDPRESS Drupal is my strongest and longest-running specialization. I work with PHP, Symfony, Composer, Drush, Twig, Views, Paragraphs, entities, Drupal Commerce, Search API, Apache Solr, Elasticsearch, headless Drupal, React, multilingual and multisite architecture. I am a Drupal Association member and Drupal core contributor. For WordPress and WooCommerce, I build custom themes, plugins, Gutenberg blocks, Elementor websites, B2B/B2C stores, payment and shipping workflows, API integrations and large product catalogues. I also handle migrations, malware recovery, performance and long-term support. CLOUD, DEVOPS & INFRASTRUCTURE I design and manage AWS, Azure, GCP, VPS, dedicated and on-premises infrastructure using Linux, Nginx, Apache, PHP-FPM, Docker, Kubernetes, ECS, Terraform, Ansible, GitHub Actions and Jenkins. My work covers IAM, SSL, DNS, WAF, monitoring, autoscaling, high availability, backups and disaster recovery. AI/LLM & FULL-STACK ENGINEERING I develop production AI applications using Python, FastAPI, OpenAI, Claude, Gemini, LangChain and LangGraph. Solutions include RAG, AI agents, document Q&A, semantic and hybrid search, embeddings, vector databases, MCP integrations, structured outputs, human approval, evaluation and observability. My broader stack includes PHP, Symfony, Laravel, Python, Node.js, React, JavaScript, MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch and OpenSearch. I communicate clearly, test carefully and deliver maintainable code, repeatable deployments and useful documentation. Available for enterprise builds, migrations, rescue projects, cloud modernization, AI integrations and long-term technical partnerships. less -
Hire extreamcode
I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical problem-solving. I help clients turn ideas into practical deliverables, from...I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical problem-solving. I help clients turn ideas into practical deliverables, from planning and design to development, deployment, optimization, documentation, and post-launch support. 30-Day Guarantee with Full Support Coverage After Project Completion. Core Expertise: - Custom websites, web apps, dashboards, portals, SaaS tools, admin panels, and business software - PHP, MySQL, JavaScript, React, Node.js basics, Python, Flask/FastAPI, MERN, LAMP, and CakePHP - WordPress, WooCommerce, Shopify, Magento, OpenCart, PrestaShop, CS-Cart, WHMCS, Webflow, Wix, Squarespace, Framer, Base44, Lovable, and Odoo - Flutter mobile apps for Android and iOS - REST APIs, webhooks, payment gateways, data sync, and third-party integrations - AI / ChatGPT integrations, AI assistants, automation tools, Python MVPs, and AI-enabled workflows - CRM, lead capture, verified lead workflows, appointment-setting systems, GoHighLevel, Zoho CRM, forms, funnels, and marketing automation - Landing pages, analytics, conversion tracking, email/SMS/WhatsApp workflows, and lead management - UI/UX, responsive web design, Figma-to-web, product pages, checkout pages, and conversion-focused layouts - PowerPoint, pitch decks, executive presentations, educational presentations, visual storytelling, infographics, and editable business documents - Canva, Figma, Adobe-style assets, social/web graphics, product visuals, storyboards, and AI-assisted image/video concepts - Three.js, WebGL, Unity-style interactive experiences, product visualization, and marketing animation support - SQL databases, reports, authentication, booking systems, inventory tools, and operational dashboards - Hosting, cPanel/WHM, VPS, Cloudflare, SSL, DNS, Linux/Windows Server, deployment, migration, speed optimization, and troubleshooting - Business process, logistics, capacity-planning, simulation-style workflows, AnyLogic/FlexSim-style support, Excel/SQL data preparation, scenario reporting, and documentation Many projects are not only websites. They involve connecting software, data, marketing, operations, reports, presentations, APIs, cloud services, and business workflows. I help turn those moving parts into dependable deliverables. What You Can Expect: - Clear communication - Practical technical advice - Clean, scalable implementation - Business-focused problem solving - Reliable troubleshooting - Proper documentation - 1-month free support after delivery Whether you need a website, eCommerce store, app, API integration, automation workflow, CRM setup, lead generation system, dashboard, presentation deck, AI tool, server fix, creative web asset, or business process solution, I can help you build it properly. less -
Hire arturg6
Hello and welcome! I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern software...Hello and welcome! I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern software engineering to create efficient, scalable, and intelligent solutions for businesses, startups, and individuals. ===== Academic Background ===== ✓ Master's Degree in Mathematics ✓ Doctoral Research Experience in Mathematics ✓ Published Research Author ✓ Scientific Computing & Mathematical Modeling ✓ Advanced Statistics & Data Analysis ===== Development Expertise ===== - Frontend Development • React.js • Next.js • Vue.js • TypeScript • JavaScript (ES6+) • HTML5, CSS3, Tailwind CSS - Backend Development • Node.js & Express.js • Python (Django, Flask, FastAPI) • PHP & Laravel • RESTful APIs • Authentication & Security - Database Systems • PostgreSQL • MySQL • MongoDB • SQLite • Database Design & Optimization ===== Artificial Intelligence & Data Science ===== • OpenAI & ChatGPT Integration • AI Chatbot Development • LangChain Applications • Machine Learning Solutions • Natural Language Processing (NLP) • TensorFlow & PyTorch • Data Analytics & Visualization • Predictive Modeling • Automation & Intelligent Workflows ===== Cloud & DevOps ===== • AWS Cloud Services • Google Cloud Platform (GCP) • Docker & Kubernetes • CI/CD Pipelines • Linux Server Administration • Nginx & Apache • Infrastructure Automation ===== Mathematics & Research ===== My mathematical background enables me to approach projects with strong analytical thinking and precision. Areas of interest include: • Machine Learning • Graph Theory • Optimization Algorithms • Statistical Analysis • Scientific Computing • Linear Programming • Mathematical Modeling • Data Mining ===== Why Choose Me? ===== ✓ Strong Problem-Solving Skills ✓ Research-Oriented Mindset ✓ Clean & Maintainable Code ✓ Fast and Clear Communication ✓ Reliable Project Delivery ✓ Scalable and Secure Solutions ✓ Long-Term Technical Support ===== My Goal ===== To help clients transform ideas into high-quality digital products through modern web technologies, artificial intelligence, and data-driven solutions. Whether you need a web application, AI-powered system, automation workflow, API integration, database solution, or custom software, I am ready to help bring your vision to life. Feel free to contact me to discuss your project. less -
Hire krupnovdenis
dZENcode helps startup founders, VC funds and businesses launch, rescue and scale software products. Since 2015 | 95+ specialists | 500+ projects across dZENcode | 3+ projects per client on average. 🚑 911 FOR IT PROJECTS We audit, stabilise and relaunch projects stuck between “almost ready” and release, addressing...dZENcode helps startup founders, VC funds and businesses launch, rescue and scale software products. Since 2015 | 95+ specialists | 500+ projects across dZENcode | 3+ projects per client on average. 🚑 911 FOR IT PROJECTS We audit, stabilise and relaunch projects stuck between “almost ready” and release, addressing technical and management problems. 🚀 PRODUCTS FROM SCRATCH: 0 → 1 From idea and discovery to UX/UI, architecture, MVP, production and scaling. 🧩 OUTSTAFFING++ Three formats: from classic outstaffing to a managed combination of competencies. Example: 4h development + 2h QA + 2h design. Our Outstaff+ packages let you start with one working day, with specialist hours and Lead input defined per package. 🅿️ PROJECT ON PAUSE We preserve context and technical readiness until development can resume. Weekly minimum: 1h Project Manager + 2h Lead. Projects built by other teams are welcome. We agree the preservation scope and initial handover before starting. A pause is not the end. We do not abandon our projects. OUR CAPABILITIES Discovery & Solution Architecture · UX/UI Design · Front-End & Back-End · Mobile & Cross-Platform Apps · Desktop & Custom Software · AI Apps & Integration · DevOps · Database Management · Scripts & Automation · QA Testing · Post-Launch Support. 💎 WUNDERWAFFE IS dZENcode Our people, culture, internal software, processes, infrastructure and accumulated knowledge work as one system, built on lean-production principles. We account for the resources behind delivery, not just developer hours: ▪️ tasks and responsibilities are managed in our project management system; ▪️ actual working time is tracked; ▪️ results are documented at every iteration; ▪️ QA, analytics, documentation, automation, internal tools and AI connected through MCP work together. Since 2019, we have invested at least 18% of dZENcode’s working hours in our internal software, processes and infrastructure. We built this system, use it daily and keep improving it. We do not build projects around individual “stars”. We combine people, expertise and technology to achieve results no individual could deliver alone. Each project benefits from the company’s accumulated experience. Speed, cost efficiency, scalability and predictability are consequences of this system. We are at least 30% more efficient than any other IT company on the market — and we are ready to prove it. 🏁 CHOOSE YOUR TEAM BASED ON RESULTS Compare us with your current team for up to two weeks. We agree on scope, comparable conditions, evaluation criteria and commercial terms before starting. 🤝 Our standard model is contract-based software delivery. We agree on responsibilities, timelines and budget — and take responsibility for delivery within those boundaries. 🌱 For selected projects, we are open to partnership and co-investment. 📩 Need to launch, rescue, scale or preserve a software product? Message us here. We Code Your Digital ZEN. less -
Hire JohnDevOps
Backend and platform engineer with 10+ years shipping production systems — Ruby on Rails, Go, Python and PHP, on PostgreSQL and Kubernetes. WHAT I DO BEST • Backend & API design — Ruby on Rails (incl. API-only mode), domain modelling, background processing with Sidekiq • Data layer — PostgreSQL, MySQL, Redis,...Backend and platform engineer with 10+ years shipping production systems — Ruby on Rails, Go, Python and PHP, on PostgreSQL and Kubernetes. WHAT I DO BEST • Backend & API design — Ruby on Rails (incl. API-only mode), domain modelling, background processing with Sidekiq • Data layer — PostgreSQL, MySQL, Redis, Elasticsearch: schema design, indexing, query tuning, plus ETL and data cleaning • Platform & DevOps — Kubernetes, Argo Workflows, OpenKruise, Docker, GitLab (including customisation), release pipelines • Async job architecture — scheduling, retries, timeout control and status callbacks for long-running work at scale WHERE I HAVE DONE IT • Exercise.com (current) — SaaS platform for personal trainers and fitness studios. Backend for studio onboarding, class scheduling, staff management, fees and billing. Rails + PostgreSQL. • bilibili — company-wide container release platform; stable K8s APIs behind large-scale video transcoding; OpenKruise-based APIs for the AI team's KV storage jobs; Argo Workflow CI/CD templates; GitLab customisation. • PixelForce (Adelaide) — CMS, CRM and analytics for SWEAT: data cleaning and reporting pipelines, public APIs serving millions of users, reusable libraries for Facebook / Snapchat / Google integrations, and a TensorFlow semantic-analysis system for social comments. • Freelance — an AI image-generation platform (Rails API + Sidekiq dispatching Kubernetes Jobs), a map-based pet social app (Rails + geo queries + UniApp), and a design marketplace with a WeChat mini-program backend (PHP + MySQL + Docker). HOW I WORK • Full lifecycle: requirements review, design, implementation, release — working alongside product, frontend and infrastructure teams • Years of remote collaboration with teams in Australia and the US. Fluent written English (MSc, University of Adelaide) and native Mandarin. • Small reviewable changes, with attention to rollback paths, retries and observability • Fixed-price milestones for well-scoped work; hourly for discovery and ongoing maintenance. Time zone UTC+8, comfortable with EU/US overlap hours. NDA-friendly. If your project is a Rails or Go backend, a Kubernetes or job-scheduling problem, or a data/ETL pipeline, send me a brief — I will reply with a few clarifying questions and a rough plan. less
