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Joseph Gitonga W.
$35/hr
100% Job Success
$30K+ earned
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I’m a backend engineer who has recently expanded into AI/LLM systems, combining solid production experience with modern AI-driven development. I hold a Bachelor’s degree in Electrical, Electronics and Communications Engineering from Hacettepe Üniversitesi, and I’ve been working with a fintech startup (H1 Card) since 2021, where I design and deploy backend systems using Python, FastAPI, and Django on AWS. Over the years, I’ve built scalable APIs, microservices, and data-driven systems across a range of projects—from fintech platforms to social applications. I’ve worked with technologies like Nameko, Ariadne (GraphQL), Firebase, and Google App Engine, collaborating closely with frontend teams and stakeholders to deliver reliable, production-ready systems. I’ve also strengthened my engineering practices through the Developing AI Applications with Python and Flask program on Coursera, complementing my hands-on experience building and deploying real-world systems. More recently, I’ve retooled my skillset around AI and LLMs. I now design and build systems that integrate models like Claude, OpenAI, LLaMA, and Gemini into real-world applications. This includes: - Building AI agents and multi-step workflows - Designing systems around MCP (Model Context Protocol) and tool use - Rapid prototyping (“vibe coding”) and shipping AI-powered features - Integrating LLMs into existing backend architectures - Creating chatbots and automation systems powered by modern AI What sets me apart is that I don’t just experiment with AI—I integrate it into production systems with proper backend architecture, scalability, and reliability. Some highlights from my experience: - Backend development for a fintech startup (AWS, FastAPI, Django) - Built microservices and GraphQL APIs for multiple freelance projects - Developed complex Django applications, including Mytichaa (an award-winning Messenger bot in the Bots for Messenger Challenge – Middle East & Sub-Saharan Africa) - Strong background in data handling, APIs, and system design Core Technologies - Python (Django, FastAPI, Flask) - Microservices (Nameko) - GraphQL (Ariadne) - Cloud: AWS, Google App Engine - Databases: PostgreSQL, MySQL, MariaDB, Firebase, Neo4j AI / LLM Stack - OpenAI, Claude, Gemini, LLaMA - AI agents and tool-use systems - MCP and structured context systems - Prompt engineering and evaluation - Backend integration of LLM workflows What I can help you build - AI-powered applications and agents - Backend systems with LLM integrations - Chatbots and automation tools - Scalable APIs for web and mobile apps - Real-time applications (WebSockets, Django Channels) - Data processing and backend pipelines I enjoy working on challenging problems and continuously evolving with new technologies. Right now, that means combining backend engineering with AI to build smarter, more capable systems. If you’re looking for someone who understands production-grade backend systems and modern AI capabilities, I’d be glad to collaborate.
Joseph Gitonga W. has worked .
$25/hr
100% Job Success
$40K+ earned
Available now
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𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 & 𝗔𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 𝟴+ 𝘆𝗲𝗮𝗿𝘀 building fast, secure, scalable web apps in 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗗𝗷𝗮𝗻𝗴𝗼, 𝗥𝗲𝗮𝗰𝘁, 𝗡𝗼𝗱𝗲.𝗷𝘀 & 𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀, now with 𝗔𝗜/𝗟𝗟𝗠 integrations. I turn complex requirements into clean, production-ready products that ship on time. Whether you need a brand-new MVP, a complex API, an AI-powered app, a high-volume web scraper, or a senior hand to rescue and scale an existing codebase, I deliver work that's reliable, well-tested, and built to grow with your business. ⭐ 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗱𝗼 𝗳𝗼𝗿 𝘆𝗼𝘂: ✅ Build full-stack web apps from scratch (frontend + backend + database) ✅ Design robust REST & GraphQL APIs ✅ Build 𝗔𝗜 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀: chatbots, RAG, semantic search, AI agents & automations ✅ Large-scale 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & automation (data extraction, bots, pipelines) ✅ Integrate payments, auth, email/SMS, and third-party services ✅ Optimize performance, fix bugs, and refactor legacy code ✅ Deploy, containerize & manage cloud infrastructure (AWS, Docker, CI/CD) 🤖 𝗔𝗜 & 𝗟𝗟𝗠 OpenAI (GPT-4o), Anthropic Claude, Google Gemini, LangChain, LlamaIndex, RAG (Retrieval-Augmented Generation), AI Agents, Hugging Face, vector databases (Pinecone, Weaviate, pgvector, Chroma), embeddings, prompt engineering, OpenAI & Whisper APIs, fine-tuning 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 🔹 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Python, Django, Django REST Framework, Flask, FastAPI, Node.js, Express.js, Nest.js, Fastify, Ruby on Rails, RESTful APIs, Apollo Server 🔹 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React, Next.js, Vue, Angular, Redux, Redux-Saga, Redux-Thunk, Vuex, Vuetify, RxJS, Context API, Gatsby, TypeScript, JavaScript, React MUI, TailwindCSS, Bootstrap, SASS/LESS 🔹 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MySQL, MongoDB, Firebase, GraphQL, ElasticSearch 🔹 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS (EC2, S3, RDS, Lambda, DynamoDB, Cognito, CloudFront, CI/CD), Docker, Kubernetes, Jenkins, Google Cloud, Azure, DigitalOcean, Git 🔹 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Scrapy, Selenium, Puppeteer, Playwright 🔹 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Stripe, PayPal, Twilio, SendGrid 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 & 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲: Kafka, RabbitMQ, gRPC, Socket .io, WebRTC 🔹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Jest, Enzyme, Cypress, Pytest 💡 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲: ✔️ Senior-level code quality focused on performance, security & scalability ✔️ Clear, proactive communication and consistent updates ✔️ Deadlines respected, scope handled honestly, no surprises ✔️ Long-term partner mindset, not just a quick fix I treat every project like it's my own product. If you want a dependable developer who writes clean code, communicates clearly, and ships on time, let's talk. 📩 Send me a message with a few details about your project and I'll reply with how I'd approach it. 𝗕𝗲𝘀𝘁 𝗥𝗲𝗴𝗮𝗿𝗱𝘀, Abdul Raheel Senior Full Stack & AI Developer | Python · Django · React · Node.js · LLM/AI | 8+ Years #FullStackDeveloper #Python #PythonDeveloper #Django #DjangoREST #RubyOnRails #NodeJS #ReactJS #NextJS #FastAPI #Flask #TypeScript #WebDevelopment #WebDeveloper #APIDevelopment #RESTAPI #GraphQL #AI #LLM #OpenAI #LangChain #RAG #AIChatbot #AIAutomation #WebScraping #Scrapy #Selenium #PostgreSQL #AWS #Docker
Abdul R. has worked .
Abdullah A.
$40/hr
100% Job Success
Available now
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I build systems where hardware meets AI — ESP32 and Raspberry Pi firmware talking to computer vision pipelines, LangGraph agentic workflows, and cloud backends that scale. Six years of cross-domain engineering across embedded systems, machine learning, OCR, IoT platforms, and backend development. On the embedded and IoT side: production firmware for ESP32, STM32, and Raspberry Pi; ThingsBoard platform architecture and custom rule chains; AWS IoT Core, MQTT, and MODBUS integration; real-time industrial automation and remote monitoring systems. On the AI and machine learning side: trained and fine-tuned YOLO-based computer vision models on real production data; fine-tuned local LLMs including LLaMA and Mistral for domain-specific deployment; built OCR pipelines using EasyOCR and OpenCV for document intelligence and field data extraction; developed LangChain and LangGraph agentic AI systems; integrated OpenAI, Gemini, and DeepSeek APIs into production backends serving thousands of users. On the backend and SaaS side: FastAPI and Flask API development; PostgreSQL and Supabase database design; Redis and Kafka data pipelines; AWS Lambda, SageMaker, EC2, and S3; Stripe payment integration; real-time WebSocket systems; full SaaS product architecture from MVP to production. What I typically build: — Computer vision inspection and OCR systems trained on real field imagery, deployed to edge devices or cloud APIs with full preprocessing and postprocessing pipelines. — Multi-device IoT monitoring platforms with ThingsBoard, AWS IoT Core, real-time rule chains, relational backends, and custom dashboards — architected for scale from day one. — Document intelligence systems — automated extraction, classification, and processing of invoices, utility bills, forms, contracts, and scanned documents using OCR, YOLO, and LLM-based parsing pipelines. — Agentic AI systems using LangGraph and LangChain — RAG pipelines, multi-agent workflows, document Q&A systems, and LLM-powered automation built for production, not just demos. — Fine-tuned local LLMs and computer vision models — domain-specific training and deployment of LLaMA, Mistral, and YOLO variants on custom datasets for edge and cloud environments. — AWS IoT systems — end-to-end architecture using IoT Core, Lambda, DynamoDB, S3, SageMaker, and Greengrass for connected device fleets, telemetry pipelines, and cloud-to-device control systems. — SaaS products and MVPs — full-stack builds using FastAPI or Flask backends, Supabase or PostgreSQL databases, Stripe billing, and React or Next.js frontends; from zero to deployed and paying customers. — Industrial automation and embedded systems integrating sensors, actuators, communication protocols, and cloud connectivity across ESP32, Raspberry Pi, and STM32 platforms. — End-to-end backend infrastructure for data-heavy applications — API design, database architecture, real-time pipelines, and cloud deployment on AWS. I scope projects carefully, communicate proactively, and flag technical risks before they cost you time. If you're building something at the intersection of hardware and AI and need end-to-end ownership, let's talk.
Abdullah A. has worked .
Nirvay C.
$7/hr
100% Job Success
$3K+ earned
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🌟 Senior Python Backend Developer | Django, FastAPI, DevOps | 4+ Years of Experience 🌟 Hello! I'm Nirvay Chaudhary, a passionate Python Backend Developer with over three years of experience building scalable, high-performance web applications. Based in Nepal, I specialize in crafting robust RESTful APIs using Django Rest Framework, FastAPI, and Flask, with a strong focus on delivering data-driven solutions for global clients. My expertise spans backend development, database management (SQL/NoSQL), DevOps (Docker, AWS, Azure, CI/CD), and front-end technologies (HTML5, CSS3, JavaScript, Bootstrap). Currently, I lead backend development at Arclogi Pvt. Ltd., where I design and deploy enterprise-grade solutions. Previously, I worked as a Backend Engineer at Fourth Valley Concierge Corporation in Tokyo, Japan, contributing to platforms like Connect Job Workers, Connect Times, and Kaigaidai. My portfolio includes transformative projects such as: Data Brakes: A tool for processing large CSV datasets, automating manual Excel tasks. Nyayik Samiti: A judicial system for Nepal’s government, enhancing transparency. Loan Management System: Streamlined loan processing for financial institutions. Avinya Kurtha Saree: An e-commerce platform promoting Nepali craftsmanship. Entigrat System: A multi-tenant platform for employee and asset management. With a Bachelor’s in Information and Communication Technology (Hons Software Engineering) from Virinchi College International, I bring a solid foundation in software engineering. My hands-on experience as a Program Intern at the Robotics Association of Nepal, teaching robotics and Arduino programming, has honed my ability to explain complex concepts clearly—a skill I apply when collaborating with clients and teams. Fluent in Nepali, English, Hindi, and Japanese, I excel in cross-cultural communication and thrive in deadline-driven environments. My analytical mindset, problem-solving skills, and commitment to quality ensure I deliver solutions that exceed expectations. Whether you need a scalable API, a custom web platform, or a data-intensive application, I’m here to turn your vision into reality. Let’s connect to discuss how I can help your project succeed! Available for freelance opportunities on Upwork. 🔧 Skills: Python (Django, FastAPI, Flask), SQL/NoSQL, Docker, Git, AWS, Azure, JavaScript, HTML5, CSS3, Jira 📩 Contact: Message me on Upwork
Nirvay C. has worked .
Muhammad  F.
$25/hr
100% Job Success
$20K+ earned
Available now
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I've helped startups and growing businesses build SaaS platforms and AI-powered web applications that are stable, scalable, and ready for real users. When you work with me, you get a developer who understands both the technical architecture and the business goals behind your product. I build secure, high-performance backend systems using Python (Django, FastAPI), Node.js, and NestJS. This means your application will have clean APIs, well-structured databases, and an architecture that scales as your user base grows. On the frontend, I develop fast, modern interfaces using React and Next.js, ensuring your product feels smooth and professional for your customers. If you are launching a SaaS platform, I can design a multi-tenant architecture, implement authentication and authorization, integrate Stripe payments, and prepare your system for long-term scalability. If you are adding AI features, I can integrate AI/ML models, automation workflows, data processing systems, or OpenAI and Anthropic Claude-based solutions directly into your application. I also build production-ready AI agents and automation pipelines that handle real business workflows without manual intervention. This includes conversational AI agents that manage appointment scheduling and booking flows, answer inbound customer inquiries via WhatsApp or other messaging channels, qualify leads and route them through CRM pipelines, and trigger follow-up actions automatically based on conversation outcomes. I have built multi-turn context-aware agents using LangChain and the Anthropic Claude API that maintain conversation state, handle edge cases gracefully, and integrate with third-party calendars, CRMs, and notification systems so the entire workflow from customer inquiry to confirmed appointment runs unattended. Whether you need an AI agent embedded in your product or an automation pipeline that replaces a manual back office process, I build systems that run reliably in production and scale as your business grows. You also get reliable cloud deployment and infrastructure setup on AWS, GCP, or Azure. I handle Docker, Kubernetes, CI/CD pipelines, and database optimization using MongoDB or PostgreSQL, so your product runs efficiently in production, not just in development. What clients appreciate most is that I prioritize: • Clean, maintainable code • Strong system design and security • Clear communication and on-time delivery • Long-term scalability instead of quick fixes Core Technologies: Python, Django, FastAPI, AI Development, Machine Learning Integration, JavaScript, TypeScript, React.js, Next.js, Node.js, NestJS, REST API Development, Microservices, SaaS Development, Kafka, MQTT, AWS, GCP, Azure, MongoDB, PostgreSQL, Stripe Integration, Docker, Kubernetes, CI/CD, Cloud Architecture, Scalable Systems. If you need a reliable full-stack developer to build, improve, or scale your SaaS or AI-based product, I’m ready to help. I’m available in the GMT/EST time zone and comfortable signing an NDA. 𝑰𝒇 𝒚𝒐𝒖'𝒓𝒆 𝒑𝒍𝒂𝒏𝒏𝒊𝒏𝒈 𝒕𝒐 𝒃𝒖𝒊𝒍𝒅 𝒐𝒓 𝒔𝒄𝒂𝒍𝒆 𝒚𝒐𝒖𝒓 𝑺𝒂𝒂𝑺 𝒐𝒓 𝑨𝑰 𝒑𝒓𝒐𝒅𝒖𝒄𝒕, 𝒔𝒆𝒏𝒅 𝒎𝒆 𝒂 𝒎𝒆𝒔𝒔𝒂𝒈𝒆 𝒘𝒊𝒕𝒉 𝒚𝒐𝒖𝒓 𝒊𝒅𝒆𝒂 𝒐𝒓 𝒄𝒖𝒓𝒓𝒆𝒏𝒕 𝒄𝒉𝒂𝒍𝒍𝒆𝒏𝒈𝒆𝒔. 𝑰’𝒍𝒍 𝒓𝒆𝒗𝒊𝒆𝒘 𝒊𝒕 𝒂𝒏𝒅 𝒔𝒖𝒈𝒈𝒆𝒔𝒕 𝒕𝒉𝒆 𝒃𝒆𝒔𝒕 𝒕𝒆𝒄𝒉𝒏𝒊𝒄𝒂𝒍 𝒂𝒑𝒑𝒓𝒐𝒂𝒄𝒉.
Muhammad F. has worked .
$30/hr
100% Job Success
$50K+ earned
Available now
Offers consultations
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I’m a pragmatic full-stack developer with 5+ years of experience specializing in Python (Django, Flask), React, and production REST APIs. I ship reliable, scalable web apps and backend systems with clean PostgreSQL designs and repeatable deployment processes. I’ve led releases, implemented CI/CD workflows, and designed optimized PostgreSQL schemas for high-read systems. Recent contract work involved debugging large Django codebases, building APIs for dashboards, and delivering frontends for Elixir/Phoenix projects. I prioritize clean architecture, automated tests, and clear communication so you get reliable code and predictable delivery. My approach is API-first, testable, and focused on user experiences and robust functionality. My Full Tech Stack (high level) Frontend: React (hooks, component libraries), JavaScript (ES6+), HTML5, CSS3, Tailwind CSS, Bootstrap, SASS, responsive design. Backend: Python (Django, Flask, FastAPI) Elixir / Phoenix; RESTful API design, JWT/OAuth auth, WebSockets. Node.js, Express.js, PHP, Laravel. GraphQL, microservices, authentication systems Data & infra: PostgreSQL (schema design, indexing, migrations), MySQL, SQL performance tuning, ETL & data extraction scripts, Docker, CI/CD. AWS, Vercel, Render, Heroku RESULTS I DELIVERED As a Django expert, I supported a large production platform (Founders Network) for ~948 hours, resolving critical bugs, shipping system upgrades, and maintaining a 5.0 client rating. As an API & Backend expert, I built and shipped core APIs and backend workflows for apprent.com, taskeen.sa, and dietcity.sa, delivering secure subscription and booking flows, reliable background jobs, and maintainable, well-documented endpoints. As an Elixir / Phoenix & Frontend expert, I delivered UI work ahead of schedule for a Phoenix project. Clients praised my responsiveness and clarity in communication. If you want a partner to take your project from spec to production, audit and stabilize an existing system, or build a fast MVP, Let's Connect! Keywords: Full Stack Developer, Web Developer, MERN Stack Developer, MEAN Stack Developer, JavaScript Developer, React.js Developer, Node.js Developer, Next.js Developer, Angular Developer, Vue.js Developer, PHP Developer, Laravel Developer, Python Developer, Django Developer, API Development, REST API, GraphQL, MongoDB Developer, MySQL Developer, PostgreSQL Developer, AWS Developer, Cloud Developer, Frontend Developer, Backend Developer, Software Engineer, E-commerce Website Development, SaaS Developer
Usama H. has worked .
MD. Fakhrul Islam F.
$12/hr
100% Job Success
$200+ earned
Available now
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I build production-ready Django REST APIs and React frontends for European and US startups — from greenfield systems to legacy modernization. I've delivered systems trusted by FAO United Nations, KPN Netherlands, and MKB-Jurist (Dutch law firm) — handling everything from architecture to AWS deployment. ─── What I Build ─────────────────────────────────────── 🔧 Backend & APIs Django REST Framework, Fastapi, Node.js, scalable REST API design, legacy refactoring, Django ORM optimization, query tuning and indexing ⚛️ Frontend React.js, TypeScript, TanStack Query, Material UI, Tailwind CSS, Bootstrap, pixel-perfect responsive UI 🗄️ Database & Performance PostgreSQL optimization, Redis caching, Celery async tasks, query tuning, indexing strategies ☁️ DevOps & Cloud AWS EC2/S3/RDS, Docker, Nginx, CI/CD GitHub Actions, Ansible, Terraform, Linux server management ─── Why Clients Choose Me ────────────────────────────── ✅ Delivered for FAO United Nations government portal ✅ EU clients — MKB-Jurist Dutch law firm, KPN Netherlands ✅ Full lifecycle ownership — architecture to deployment ✅ Clear daily communication and on-time delivery ✅ Available for immediate start ─── Tech Stack ───────────────────────────────────────── Python | Django | DRF | Fastapi | Node.js | React | TypeScript PostgreSQL | Redis | Celery | Docker | AWS | Nginx Ansible | Terraform | GitHub Actions | OpenAI API
MD. Fakhrul Islam F. has worked .
$30/hr
100% Job Success
$10K+ earned
Available now
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𝑭𝒓𝒆𝒆 30-𝑴𝒊𝒏𝒖𝒕𝒆 𝑪𝒐𝒏𝒔𝒖𝒍𝒕𝒂𝒕𝒊𝒐𝒏 𝑪𝒂𝒍𝒍! 𝑱𝒖𝒔𝒕 𝒔𝒉𝒂𝒓𝒆 𝒚𝒐𝒖𝒓 𝑭𝒊𝒈𝒎𝒂 𝒐𝒓 𝑰𝒅𝒆𝒂𝒔, 𝒘𝒆 𝒘𝒊𝒍𝒍 𝒄𝒐𝒏𝒗𝒆𝒓𝒕 𝒕𝒉𝒂𝒕 𝒊𝒏𝒕𝒐 𝒂 𝒅𝒆𝒕𝒂𝒊𝒍𝒆𝒅 𝑹𝑭𝑸 𝒂𝒏𝒅 𝒅𝒆𝒇𝒊𝒏𝒆 𝒕𝒉𝒆 𝑺𝒄𝒐𝒑𝒆 𝑺𝒐 𝒚𝒐𝒖 𝒄𝒂𝒏 𝒈𝒆𝒕 𝒂 𝒃𝒆𝒕𝒕𝒆𝒓 𝑰𝒎𝒂𝒈𝒆. 🌟 With EXPERT FULL STACK PYTHON/DJANGO REACTJS NEXTJS DEVELOPMENT SPECIALIST 🌟 We help businesses and startups build scalable SaaS platforms, cloud-based web applications, custom APIs, and high-performance MVPs using Python, AI development, Django, FastAPIs, React.js, Next.js, and AWS. My services cover end-to-end web development, including Full-Stack Web Application Development, AWS Cloud Integration, Custom API Development, Database Design & Optimization, and SEO-optimized Next.js websites that drive visibility and growth. Whether you need a SaaS dashboard, a subscription-based product, or a secure backend system that scales, I deliver modern, production-ready solutions built on industry best practices. I also specialize in web app performance tuning, security hardening, and architecture consulting helping clients transform existing systems into fast, reliable, and cloud-native applications. 𝑾𝒉𝒆𝒏 𝒚𝒐𝒖 𝒔𝒄𝒉𝒆𝒅𝒖𝒍𝒆 𝒂 𝒄𝒂𝒍𝒍, 𝒚𝒐𝒖’𝒍𝒍 𝒓𝒆𝒄𝒆𝒊𝒗𝒆: 𝑻𝒉𝒊𝒔 𝒊𝒔 𝒕𝒉𝒆 𝒗𝒂𝒍𝒖𝒆 𝒘𝒆 𝒑𝒓𝒐𝒗𝒊𝒅𝒆 𝒕𝒐 𝒐𝒖𝒓 𝒄𝒍𝒊𝒆𝒏𝒕𝒔 𝒂𝒔 𝒂 𝒕𝒆𝒂𝒎. 𝑫𝒐 𝒄𝒉𝒆𝒄𝒌 𝒐𝒖𝒕 𝒐𝒖𝒓 𝒄𝒐𝒎𝒑𝒂𝒏𝒚 𝒑𝒓𝒐𝒇𝒊𝒍𝒆! ⚙️ 𝘾𝙤𝙧𝙚 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨 1️⃣ 𝙎𝙖𝙖𝙎 & 𝙁𝙪𝙡𝙡-𝙎𝙩𝙖𝙘𝙠 𝙒𝙚𝙗 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 => React.js / Next.js front-end + Python/Django back-end => Subscription systems, dashboards, multi-tenant apps => Fullstack developer => Front-end Developer / Frontend developer => back-end developer / backend developer 2️⃣ 𝑨𝑾𝑺 𝑪𝒍𝒐𝒖𝒅 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏 & 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 => EC2, Lambda, S3, CloudFormation setup and automation => CI/CD pipelines and monitoring => Scalable cloud architecture for SaaS apps 3️⃣ 𝑪𝒖𝒔𝒕𝒐𝒎 𝑨𝑷𝑰 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 & 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏 => REST & GraphQL APIs with Django REST Framework => Third-party SaaS integrations (Stripe, SendGrid, Auth0) => Secure authentication / authorization (JWT, OAuth2) 4️⃣ 𝑫𝒂𝒕𝒂𝒃𝒂𝒔𝒆 𝑫𝒆𝒔𝒊𝒈𝒏 & 𝑶𝒑𝒕𝒊𝒎𝒊𝒛𝒂𝒕𝒊𝒐𝒏 => PostgreSQL, MySQL, MongoDB, Redis => Query optimization & data modeling for performance => Backup, migration, and security hardening 5️⃣ 𝑱𝒂𝒗𝒂𝑺𝒄𝒓𝒊𝒑𝒕 / 𝑻𝒚𝒑𝒆𝑺𝒄𝒓𝒊𝒑𝒕 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 => Modular, component-based development => Type-safe architecture & frontend performance tuning => Integration with Python APIs for real-time apps 6️⃣ 𝑵𝒆𝒙𝒕.𝒋𝒔 & 𝑹𝒆𝒂𝒄𝒕.𝒋𝒔 𝒇𝒐𝒓 𝑺𝑬𝑶 𝑶𝒑𝒕𝒊𝒎𝒊𝒛𝒂𝒕𝒊𝒐𝒏 => Server-Side Rendering (SSR) and Static Site Generation (SSG) 7️⃣ 𝑴𝑽𝑷 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 𝒇𝒐𝒓 𝑺𝒕𝒂𝒓𝒕𝒖𝒑𝒔 => Rapid prototyping with React.js / Django => AI integration and Development into MVP 8️⃣ 𝑾𝒆𝒃 𝑨𝒑𝒑 𝑷𝒆𝒓𝒇𝒐𝒓𝒎𝒂𝒏𝒄𝒆 & 𝑺𝒆𝒄𝒖𝒓𝒊𝒕𝒚 𝑶𝒑𝒕𝒊𝒎𝒊𝒛𝒂𝒕𝒊𝒐𝒏 => Speed audits, caching, and load-time reduction 🧠 𝑻𝒆𝒄𝒉 𝑺𝒕𝒂𝒄𝒌 Frontend: React.js, Next.js, TypeScript, Redux, TailwindCSS Backend: Python, Django, FastAPis Django REST Framework Database: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS (EC2, S3, Lambda, CloudFormation), Docker, GitHub Actions Others: REST API, GraphQL, SEO Optimization, CI/CD, SaaS Architecture, Security Audits Contact me, and let’s discuss how we can take your project to new heights and achieve your business goals.
Rana Abdullah F. has worked .
$10/hr
100% Job Success
$200+ earned
Available now
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From a business idea to a scalable, high-performance backend system, I deliver solutions that are not just functional but built to scale, perform, and succeed. I specialize in Golang & Python development, crafting robust APIs, event-driven architectures, and data-intensive systems that power real-world products, from eCommerce platforms and fintech applications to AI/ML-powered solutions and real-time data pipelines. If you’re looking for a backend engineer who can own your project end-to-end, from architecture design to production deployment, I can be your one-stop solution. What I Deliver Backend Development – APIs with Go (Fiber, Gin), Python (Flask), gRPC, and WebSockets. Scalable Microservices – Event-driven systems with Kafka, Redis, and async schedulers. Database Expertise – PostgreSQL, MongoDB, TimescaleDB with schema optimization & indexing. 3rd-party Integrations – Payment Processing, Recommendation Systems, Automated Messaging, and Emails. AI & Data Systems – Real-time analytics, ML/NLP pipelines, OCR, predictive modeling. DevOps & CI/CD – Dockerized deployments, GitHub Actions automation, cloud-ready apps. Tech Stack 🔹 Languages: Golang, Python 🔹 Frameworks: Fiber, Gin, Flask 🔹 Databases: PostgreSQL, MongoDB, TimescaleDB, Redis, CockroachDB, ElasticSearch. 🔹 Technologies: gRPC, GraphQL, Debezium, JWT/Paseto, WebRTC, Celery, Asynq. 🔹 Messaging/Events: Kafka, RabbitMQ, WebSockets, Webhooks. 🔹 DevOps: Docker, GitHub Actions, Automated Testing. 🔹 Deployments: Clouds(AWS, GCP). 🔹 Integrations: Stripe, Klaviyo, SearchSpring, Twilio, Google Merchant Center. Industries I’ve Built For E-Commerce & Marketplaces – High-concurrency platforms with secure payments & advanced product search. Smart Infrastructure & IoT – Vehicle tracking, RFID ingestion, real-time data sync. Fintech & Trading Apps – Live streaming data, ML-driven signals, secure user management. Food & Delivery Platforms – Microservices for orders, payments, and logistics. AI & NLP – Sentence correction, OCR pipelines, and AI-powered automation. I don’t just write code — I build backend engines that accelerate business growth. Whether you need a new system from scratch or to scale your existing product, I’ll help you architect, develop, and deploy with confidence. Let’s jump on a call to discuss how we can turn your backend into your biggest growth driver.
Ahsan S. has worked .
Hamza K.
$25/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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Need a production-ready AI developer who ships HIPAA-compliant SaaS and LLM platforms fast? I've delivered 10+ funded MVPs from ambient medical scribes to fintech compliance dashboards in weeks, not quarters. What sets me apart is 8+ years bridging deep technical execution with business strategy. My background in large-scale data systems evolved into building the LLM-driven platforms of today so the AI I ship is faster, more reliable, and built on a foundation that survives investor due diligence. I've shipped 10+ MVPs that went on to raise funding, and I know exactly what a production codebase needs to look like. Here's what I build: 🤖 AI & LLM Systems: Custom AI agents, multi-agent orchestration, LLM fine-tuning, and vector database integrations (Pinecone, Weaviate, FAISS) for complex business logic. 🏥 Healthcare AI: HIPAA-compliant ambient scribes, automated medical coding (ICD/CPT), and EHR integrations that reduce admin burden for clinical teams. 💳 Fintech Platforms: Secure, high-throughput payment dashboards and compliance systems built to regulatory standards. 🛠️ Full-Stack SaaS: Next.js, React, FastAPI, Django, Supabase, PostgreSQL — scalable to 10k+ users from day one. ⚙️ Automation: n8n, Make, and Zapier workflows that connect your CRM, ERP, and internal tools without custom code overhead. When you hire me, you aren't just getting an engineer. You are getting an execution partner who has successfully shipped 10+ MVPs that went on to raise funding. I know what investors look for in a codebase, and I know what users demand in a UX. Stop losing weeks to development delays. Let’s get your product into the hands of paying customers. Send me a message with your project scope and I'll respond the same day. Let's schedule a strategy call this week and get your product moving.
Hamza K. has worked .