Hire the Best Amazon Backend Developers

Top Rated Plus | $500K+ earned. I build Amazon SP-API integrations, ad performance platforms, and SaaS data pipelines for ecommerce brands and agencies. My team and I have delivered production systems for Tinuiti, Pixis, BTR Media, and Amazify over the past 10 years. My work covers two areas most developers treat separately. On the data engineering side I build real-time pipelines, ETL systems, and automated reporting for platforms processing millions of events and 100K+ SKUs daily. On the full-stack side I architect multi-tenant SaaS products, API-first backends, and the dashboards that sit on top of all that data. What I specialize in: Amazon SP-API, DSP API, Ads API, and MWS to SP-API migrations. Google Ads API and Meta Marketing API integrations. eBay, Shopify, TikTok, and Walmart marketplace APIs. PPC optimization and automated bid management systems. Sales, profit, attribution, and inventory dashboards. ETL pipelines and large-scale data processing. Multi-tenant SaaS architecture with RBAC and SSO. OpenAI and AI integrations for document intelligence and workflow automation. At Tinuiti I worked on a platform managing hundreds of millions in ad spend with automated bidding, real-time attribution, and cross-channel reporting across Amazon, Google, Walmart, and Meta. At Pixis the work involved AI-driven campaign management at massive scale across multiple enterprise clients simultaneously. At RAGAdvise I built the full multi-tenant SaaS architecture from the ground up. Tech stack: Python, Node.js, Laravel, ASP.NET, React, PostgreSQL, AWS (EC2, S3, RDS), Looker Studio, Data Studio, OpenAI, CI/CD, DevOps. If you are an ecommerce brand, performance marketing agency, or SaaS company that needs serious infrastructure built right, let's talk.

Python Developer specializing in FastAPI, Django, Flask & AI/ML solutions ⭐ Top Rated Plus – Ranked in the Top 1% of Lead Python developers on Upwork ✅ 14+ Years of Senior Python Excellence | 13,000+ Hours Delivered I personally handle all development and client communication, ensuring high-quality, scalable, and secure applications without outsourcing. From MVPs to enterprise SaaS platforms, I transform complex requirements into production-ready systems. I’ve been working with Django (since v0.3), Python (v2.3+), FastAPI, Flask, and React. I specialize in building intelligent systems with AI/ML, NLP, and LLMs. Since 2019, I’ve been leading cross-functional teams globally, while also working individually with clients to deliver clean, scalable solutions. Most of my work has been on production systems already serving real users, where I acted as the technical owner, not just an implementer. 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀: Contributed to Open edx: Enhanced the global open-source learning platform with Python/Django. KredX Financial Platform: Built APIs & real-time analytics with FastAPI for high-volume transactions. The Entertainer (Python + React): Delivered large-scale consumer app supporting millions of users. Moeving Mobility Platform: Designed scalable Python microservices for real-time fleet management. MTailor: Automated ML pipelines for computer vision body measurements. Surmount.AI: Built AI-powered legal assistant using Django + FastAPI + LLMs. Deflection.AI: Customer support system with Python APIs + vector similarity + NLP. I help startups and enterprises turn ideas into production-ready software. From rapid MVPs to AI-powered platforms, I combine deep technical expertise with hands-on leadership, guiding global cross-functional teams to deliver results on time and at scale. I am a CTO-level Senior Python Developer to lead the technical direction and hands-on development of a scalable, cloud-native platform built on Python and AWS 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Backend & APIs: Python (FastAPI, Django, Flask), REST, GraphQL, async programming, microservices Databases: PostgreSQL, MySQL, MongoDB, Redis (optimized schemas, queries, and data modeling) AI/ML & Data: LLMs (OpenAI GPT, Whisper), NLP pipelines, TensorFlow, PyTorch, Pandas, NumPy Cloud & DevOps: AWS (Lambda, ECS, RDS, S3), GCP, Azure, Docker, Kubernetes, CI/CD automation Full Stack Collaboration: React, Next.js, Vue.js with secure, Python-driven backends 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿: ✔️ Scalable REST/GraphQL APIs & microservices ✔️ Data pipelines & AI/ML-powered systems ✔️ Cloud-native architectures (AWS/GCP/Azure) ✔️ Secure, tested, and future-proof code (CI/CD) ✔️ MVP-to-enterprise scaling with clear communication 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Python Developer | Django Expert | FastAPI Developer | Flask Developer | Backend Engineer | API Development | AI/ML Engineer | Chatbot Developer | NLP Specialist | React Developer | SaaS Architecture | Cloud & DevOps | Docker | AWS | Data Pipelines | LLMs | TensorFlow | PyTorch | Web Scraping

Full-Stack Mobile App Developer | AI-Powered Apps | Top Rated | 100% Job Success | 5-Star Reviews I build AI-powered mobile apps that ship on time, hold up under real users, and won't need rewriting in a year. React Native and Flutter, iOS and Android, from wireframe to App Store and Play Store launch, with the backend, APIs, and cloud built in. Anyone can get an AI demo running in a weekend now. Turning that into a product you can charge for and trust with real users is a different job, and that's the one I do. 💭 You're in the right place if you're thinking: • I need a React Native or Flutter developer who takes full ownership • I want real AI inside my app, not a chatbot bolted on the side • My last developer vanished mid-build and I need someone reliable • I need a production-ready MVP in weeks, not months • I want clean, documented code, not a mess I'll rebuild next year 📱 Mobile App Development React Native and Flutter cross-platform apps for iOS and Android. AI features built in with OpenAI, Claude, and custom RAG pipelines. Real-time, social, marketplace, fitness, dating, and MVP builds shipped to live users. When other developers couldn't get a complex real-time build working, I'm the one who finished it. 🌐 Web Apps, AI Apps & Full-Stack React and Next.js web apps with Supabase, Firebase, and custom Node or Python backends. AI applications powered by RAG, LangChain, and vector databases, so your app actually knows your data instead of guessing. Most of my mobile clients also need a web dashboard or admin panel, and I build that too, so nothing gets lost in handoff. 🛠️ Tech Stack • Mobile: React Native, Flutter, Expo, Swift, Kotlin • AI: OpenAI, Claude, LangChain, RAG pipelines, vector databases • Web: React, Next.js, TypeScript, Tailwind CSS • Backend: Node.js, Express, Python, Django, FastAPI, REST, GraphQL • Cloud: AWS, Docker, CI/CD • Databases: PostgreSQL, MongoDB, Supabase, Firebase, MySQL • Payments: Stripe, In-App Purchases ⭐ Why clients choose me • Top Rated with 100% Job Success and a 5-star rating on every project I've closed • Full ownership: mobile, backend, AI, cloud, and deployment handled together • Real AI depth: RAG and full pipelines, not a ChatGPT call bolted on • SonetCraft: agency-grade delivery with direct, personal communication • BSc Computer Science and Technology, CUPB (Beijing) • 0 to 4 hour response time, so you're never left waiting • Toastmasters member: clear updates, honest feedback, easy to work with 🏢 Industries: Fitness & Health · Healthcare · Dating · Social · E-commerce · Fintech · SaaS · Marketplaces · Startup MVPs If you've got an AI app idea, or something built fast that you're not sure you can trust, send me a message and tell me what you're building. I'll tell you straight how to get it live, working, and safe.

Are you looking to build a high-performance SaaS platform, automate a complex supply chain, or integrate secure, production-ready AI into your business workflow? Many developers can write code, but very few understand how to seamlessly blend cutting-edge AI/ML systems with scalable, enterprise-grade architecture while ensuring strict data security (HIPAA, PCI-DSS). I am a Full-Stack Developer and AI/ML Engineer with extensive experience architecting end-to-end solutions for SaaS, Supply Chain, Healthcare (HIS/HMS), and custom ERP systems. Whether you need to build an MVP from scratch or scale an existing enterprise platform, I deliver clean, maintainable code and robust infrastructure. 🚀 Core Expertise & How I Can Help You: AI/ML & GenAI Integration: Building intelligent RAG systems, custom chatbots, and LLM-powered workflows using OpenAI, Anthropic, LangChain, and Vector Databases (Pinecone, Qdrant). Robust Backend & Architecture: Designing secure, high-throughput microservices and APIs using Node.js (NestJS), Python (FastAPI/Django), and PHP, backed by PostgreSQL, MongoDB, or Redis. Modern, Responsive Frontends: Crafting seamless web and mobile interfaces using React, Next.js, Angular, Vue.js, and React Native. Cloud, DevOps & Compliance: Deploying production-ready applications on AWS/GCP/Docker with CI/CD pipelines, keeping security and regulatory standards (HIPAA, GDPR) at the forefront. 🛠️ Technical Snapshot: Frontend: React, Next.js, Angular, Vue.js, React Native, Tailwind CSS Backend: Node.js (NestJS/Express), Python (FastAPI/Django), PHP, Java AI/ML: LLMs, LangChain, Vector DBs, Prompt Engineering, RAG Systems Cloud & Databases: AWS, GCP, Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, Redis Let’s build something scalable. Click the "Invite to Job" or "Hire" button on the top right, and let’s discuss how we can bring your project to life.

If your app is broken, behind schedule, or stuck with bugs you can’t diagnose, I can help. I’m a senior full-stack developer with 30+ years of experience fixing, stabilizing, and finishing production systems—especially React, Node.js, APIs, and databases. I’m often brought in when: • A project is partially built but stuck • A previous developer disappeared • Bugs are blocking launch • APIs or integrations aren’t working My focus is fast diagnosis, clear communication, and shipping fixes—not rewrites. I’m a hands-on developer with 35 years of experience delivering production software across web, backend, and infrastructure systems. In recent work, I’ve been building and fixing applications using React, Node.js, MongoDB, and modern cloud environments. I also work with Web3 systems when needed, including Ethereum and Solana smart contracts, token integrations, and wallet-based workflows. With experience across many languages and platforms, I adapt quickly to the problem at hand and focus on getting things working reliably. Common fixes I handle: • API integrations that fail, timeout, or return incorrect data • Third-party API auth, webhooks, and data sync issues • React rendering, state, and performance issues • Node.js / Express backend errors and crashes • MongoDB schema, query, and data issues • Finishing half-built MVPs I’m available for short-term fixes or ongoing support.

I help startups, enterprises, and innovators unlock the true potential of AI and AWS Cloud by designing, building, and scaling intelligent solutions. With over 16 years of experience in software engineering, cloud consulting, and AI-driven development, I specialize in Agentic AI, AI Agents, Generative AI, and AWS architectures that solve real business challenges. My Expertise: Agentic AI & AI Agents: I design and deploy autonomous AI systems that can reason, plan, and execute tasks with minimal human intervention. From customer support agents to knowledge assistants and process automation, I help companies bring agent-driven intelligence into their workflows. Generative AI Applications: I build chatbots, RAG pipelines, text-to-speech systems, and document intelligence solutions using Amazon Bedrock, LangChain, and LLMs (GPT, Claude, etc.). My focus is on practical AI that drives productivity and growth. AWS Cloud Architecture: As an AWS Solutions Architect, I design and implement cloud-native solutions using EC2, S3, Lambda, SageMaker, EKS, Glue, Athena, and more. I ensure your systems are secure, cost-optimized, and scalable. AI/ML on AWS: From training custom models on SageMaker to deploying scalable inference endpoints, I help businesses leverage AWS’s AI ecosystem to stay ahead of the curve. End-to-End Delivery: I follow a structured approach—requirements discovery, architecture design, development, DevOps pipelines, and long-term maintenance. My goal is to deliver production-ready solutions that clients can rely on. Why Work With Me: Proven experience delivering AI and AWS projects across industries like real estate, finance, compliance, IoT, and healthcare. Strong background in both technical execution and business impact, making me equally comfortable working with CTOs and business leaders. Deep knowledge of AI agents, multi-agent orchestration, and AWS AI/ML services that sets me apart from generalist developers. A commitment to building long-term client relationships through clear communication, milestone-based delivery, and measurable results. If you are looking for a partner who can combine cutting-edge AI innovation with robust AWS cloud practices, let’s collaborate to turn your vision into a scalable, intelligent solution. AI Development, Agentic AI, AI Agents, Autonomous AI, Generative AI, Conversational AI, AI Chatbot Development, AI Automation, RAG (Retrieval Augmented Generation), LangChain, Amazon Bedrock, AWS Solutions Architect, AWS AI/ML, AWS SageMaker, AWS Lambda, AWS EC2, AWS S3, AWS Glue, AWS EKS, AWS CloudFormation, Cloud Engineering, Cloud Migration, DevOps on AWS, Machine Learning, Deep Learning, Natural Language Processing (NLP), LLM (Large Language Models), Voice AI, AI Integration, AI Workflow Automation