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$60/hr
$600+ earned
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If your AI system is slow, expensive to run, or breaks under real load - that's not an AI problem. That's an architecture problem. I'm an AI Developer with 10+ years of experience building production-grade intelligent systems: LLM-powered platforms, automation pipelines, AI Agents, and Machine Learning infrastructure that runs reliably at scale - not just in demos. Our team has delivered 250+ AI and SaaS products across 45 countries, logging 15,000+ hours of hands-on AI Development. We don't prototype and disappear. We build systems that handle real data, real concurrency, and real business logic - then stick around to make sure they stay stable. What I build: AI Agents & Automation - autonomous agents for sales, support, document processing, and internal workflows. Custom-built, not no-code wrappers. As an AI Developer, I design agent logic that actually handles edge cases instead of failing silently when input doesn't match the happy path. Whether it's a copilot embedded in your SaaS platform or a multi-step orchestration pipeline, the agent works the way your business actually operates - not the way a demo script assumes it does. LLM Integration & RAG Pipelines - OpenAI, Gemini, Claude, and open-source models connected to your data through vector databases and retrieval-augmented generation. Accurate outputs, controlled token costs, and fallback logic built in from day one. I've shipped RAG systems that stay accurate at scale, not just on the first 50 queries. Machine Learning Systems - model integration into web platforms, predictive analytics pipelines, structured inference workflows, and Python-based AI backends. Machine Learning that serves real users under real load, not just Jupyter notebooks with clean data. I design the full data flow: preprocessing, inference, monitoring, retraining triggers - so your Machine Learning system improves over time instead of drifting silently. AI System Architecture - full infrastructure design for AI-powered SaaS, CRM, and enterprise platforms. Microservices, secure backend connectivity, scalable deployment pipelines. Built by an AI Developer who's seen what breaks in production and designs around it before it becomes a 2am incident. Optimization & Production Stability - latency reduction, token cost control, monitoring, logging, concurrency handling, and fallback strategies. I've cut inference latency by 45% and reduced manual operations by 60%+ on systems that were already live and struggling under load. How I work: Before writing a line of code, I map your automation logic, data sources, model requirements, and scalability assumptions. I want to understand the business workflow behind the AI feature - not just the API call. Then I design an architecture that fits your actual product, not a copy-paste structure from the last project. I also pay close attention to cost. Machine Learning inference and LLM token usage add up fast when nobody's watching. Every system I deliver includes cost monitoring, usage caps, and optimization strategies - so your AI budget stays predictable as you scale. Every AI Developer on our team writes production-ready code: documented, modular, and built to be maintained by someone who wasn't in the original planning call. Milestones are real deadlines, not rough estimates. You'll know exactly what's done, what's next, and what's blocking - before it becomes your problem. If something about the requirements doesn't add up technically, I'll say so before we start - not three weeks into the build. Results our clients have seen: ↑ 62% reduction in manual document processing through AI Automation ↑ 55% faster AI-powered data processing ↑ 45% latency reduction after Machine Learning pipeline optimization ↑ 50% improvement in automation efficiency ↓ 40% fewer operational bottlenecks through intelligent automation ✓ AI systems scaled to enterprise load without architecture rewrites ✓ LLM integration deployed to production with monitoring and cost controls Industries: FinTech · Healthcare · SaaS · EdTech · eCommerce · B2B Enterprise · AI Products Ready to build an AI system that holds up in production? → I'll review your requirements carefully — not skim them → I'll ask the questions that reveal the real architecture challenges → You'll get a clear technical plan, honest scope, and milestone breakdown → If I'm not the right AI Developer for your project — I'll tell you that directly No vague proposals. No oversold demos. Just structured AI Development delivered by an AI Developer who gives a damn about whether it works at scale. 👉 Hit Invite to Job or send me a message - I'll respond within a few hours.
Timur R. has worked .
$35/hr
89% Job Success
Available now
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💻 With 15,000+ Upwork hours, I help SaaS founders, startups, and small businesses build scalable apps, automate workflows, and integrate AI (RAG + vector databases) to launch faster and grow smarter. ⚡ I combine full-stack development (Python, React.js, Next.js, Node.js) with automation platforms (n8n, Make.com, Zapier, GoHighLevel) and AI-powered solutions — so you get a future-ready product without hiring multiple specialists. What I Deliver: ✅ SaaS MVP Development → React/Next.js frontends + Python, Node.js APIs built for scalability. ✅ Workflow Automation → Save time & costs with n8n, Make.com, Zapier, and GHL. ✅ AI-Powered Features → RAG pipelines, vector DBs, and LangChain integrations. ✅ API Development & Integrations → Custom APIs that connect your tools seamlessly. Why Clients Choose Me: 📌 Specialist in SaaS + Automation + AI (not just another “full-stack dev”). 📌 Proven track record → 15,000+ Upwork hours with startups & businesses worldwide. 📌 Clear communication & fast delivery → No fluff, just results. Client Success Stories: ⭐ “Incredible automation workflows — saved us 20+ hours weekly!” – Steve Solomon ⭐ “Built our SaaS MVP from scratch and integrated AI flawlessly.” – Sarah Tags: Python, React.js, Next.js, Node.js
Touqeer H. has worked .
$12/hr
$40K+ earned
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I build scalable SaaS platforms, AI-powered applications, and modern web products using React, Next.js, Node.js, and Python. With 6+ years of experience and 100+ projects delivered, I help startups, businesses, and enterprises turn ideas into production-ready applications — from MVP development to complex SaaS platforms, dashboards, APIs, and AI integrations. My expertise includes: 🚀 Full Stack Web Development • React.js / Next.js frontend applications • Node.js / Express.js / NestJS backend systems • Python Django / FastAPI applications • REST API & GraphQL development • Database architecture and optimization 🤖 AI Application Development • OpenAI API integrations • AI chatbots and assistants • RAG systems • LLM-powered workflows • AI automation solutions 🏢 SaaS & B2B Product Development • Multi-tenant SaaS platforms • Admin dashboards • Business portals • Subscription-based applications • Marketplace and enterprise solutions ☁️ Cloud & DevOps • AWS deployment • Docker • CI/CD pipelines • Performance optimization • Scalable architecture Industries I have worked with: ✔ SaaS ✔ Healthcare ✔ FinTech ✔ E-commerce ✔ Education ✔ Marketplaces Some examples of solutions I have built: • AI-powered B2B procurement platforms • Customer support and ticketing systems • SaaS dashboards • Real-time applications • Healthcare platforms • E-commerce systems Why clients choose me: ✅ 100+ projects delivered ✅ Experience building production applications ✅ Strong frontend + backend expertise ✅ Clean, scalable, maintainable code ✅ Clear communication and reliable delivery I focus on building reliable production systems with clean architecture, scalable backend design, optimized frontend performance, and AI-driven automation — I help businesses build products that are scalable, secure, and ready for real users. If you need a Full Stack Developer for your SaaS product, web application, AI integration, or MVP development, let's discuss your idea...
Asarafbhai G. has worked .
Hardeep S.
$14.7/hr
100% Job Success
$40K+ earned
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🚀 𝗡𝗲𝗲𝗱 𝗮 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗯𝗮𝗰𝗸𝗲𝗻𝗱, 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗼𝗿 𝗦𝗮𝗮𝗦 𝗠𝗩𝗣 𝗯𝘂𝗶𝗹𝘁 𝗾𝘂𝗶𝗰𝗸𝗹𝘆 𝗮𝗻𝗱 𝗰𝗼𝗿𝗿𝗲𝗰𝘁𝗹𝘆? I help startups and businesses build 𝗠𝗩𝗣𝘀, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗔𝗣𝗜𝘀, 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝗮𝗻𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 using Python, FastAPI, Django, and modern cloud technologies. Whether you're validating a new idea, launching a new product, or scaling an existing platform, I deliver reliable backend systems designed for performance, maintainability, and long-term growth. From MVP to enterprise-grade solutions, I focus on building clean, scalable architectures that help businesses launch faster and grow confidently. 🏆 Top Rated Plus Freelancer 🏆 100% Job Success Score 🏆 2,367+ Hours Successfully Delivered 🏆 Long-Term Partnerships with Startups & Businesses Worldwide 👉 𝗦𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 and let's discuss the right technical approach for your project. 📊 𝐖𝐇𝐀𝐓 𝐈'𝐕𝐄 𝐃𝐄𝐋𝐈𝐕𝐄𝐑𝐄𝐃 (𝐒𝐨𝐜𝐢𝐚𝐥 𝐏𝐫𝐨𝐨𝐟 + 𝐒𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐢𝐭𝐲) 🏦 Financial Data Warehouse → Aggregated 30,000+ time-series into live dashboards for US fintech (reducing query time 65%) 🏘️ Real Estate Platform → Scraped, indexed, and tracked 100M+ property objects at scale (zero downtime, 99.9% uptime) 🔒 Web Application Firewall → Built scalable WAF for Chicago-based company (slashed infrastructure costs 40%) 🏨 Multi-Tenant SaaS Platform → Designed and delivered a scalable property management platform supporting multiple organizations and role-based access control 💡 𝐇𝐎𝐖 𝐈 𝐖𝐎𝐑𝐊 (𝐏𝐫𝐨𝐜𝐞𝐬𝐬 + 𝐂𝐥𝐚𝐫𝐢𝐭𝐲) 1. Discovery: Understand your business goals, requirements, and success metrics (free 30-min consultation) 2. Technical Design: Define the architecture, tech stack, timeline and roadmap aligned to your budget 3. Iterative Delivery: Bi-weekly sprints, clear progress, responsive communication 4. Production Ready: Testing, monitoring, documentation, deployment, and support. 5. Long-Term Partnership: Available for support, maintenance, scaling, or next phases 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐚𝐛𝐥𝐞𝐬 𝐀𝐥𝐰𝐚𝐲𝐬 𝐈𝐧𝐜𝐥𝐮𝐝𝐞: ✅ Clean, maintainable, production-ready code ✅ API documentation & deployment guides ✅ CI/CD pipelines (GitLab/GitHub Actions) ✅ Database design & migration strategy ✅ Performance monitoring and optimization 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Python · FastAPI · Django · Flask · Sanic 𝗔𝗣𝗜𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: RESTful APIs · Google APIs · Payment Gateways (Stripe, PayPal) 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Scrapy · Playwright · Selenium · BeautifulSoup 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL · MySQL · MongoDB · Redis · SQLite 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Docker (4+ yrs) · AWS (EC2, S3, Lambda) · GCP · Heroku · Kubernetes · Vercel · CI/CD (GitLab CI) · GitHub · Bitbucket 𝗔𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: OpenAI • RAG Systems • Vector Databases • AI Agents • Claude Code • Cursor 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✅ API ,API Integrations, Webhooks, integrating 3rd party API ✅ AI, RAG , OpenAI and Vector Databases ✅ Python FastAPI, Flask ✅ Django, Django Rest Framework, DRF, Django-channels ✅ MySQL, PostgreSQL, NoSQL, MongoDB, Graph Database ✅ Claude Code, Cursor Agentic way of building features & testing ✅ Scalable Deployment and Management ✅ Postman, Docker, API Management ✅ Testing ✅ Rapid MVP development to validate and launch faster ✅ Legacy system modernization to modern Python stacks ✅ Data-heavy applications with strong, scalable backends ⭐ 𝗪𝗵𝗮𝘁 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗦𝗮𝘆 "Hardeep is extremely professional, efficient and quick. He has been a pleasure to work with and we look forward to working with him again in the near future. Highly recommended." 🚀 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐋𝐚𝐮𝐧𝐜𝐡 𝐨𝐫 𝐒𝐜𝐚𝐥𝐞 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐝𝐮𝐜𝐭? Whether you need a FastAPI backend, AI-powered application, SaaS platform, API integration, or startup MVP, I can help turn your requirements into a production-ready solution. 💬 Send me a message with your project requirements, and I'll provide feedback on scope, timeline, and the best technical approach. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐭𝐨 𝐅𝐢𝐧𝐝 𝐦𝐞: Python Backend Developer • FastAPI Developer • Django Developer • REST API Development • API Integrations • SaaS Development • Backend Engineering • Microservices Architecture • OpenAI Integration • RAG Applications • AI Agents • Web Scraping • Data Engineering • AWS • Docker • Kubernetes • PostgreSQL • MongoDB • Scalable Backend Systems • High-Performance APIs • Multi-Tenant SaaS Platforms
Hardeep S. has worked .
Tekki Web Solutions Private Limited 🥇
Associated with
Tekki Web Solutions Private Limited 🥇
$2M+
earned
Ehtasham A.
$35/hr
97% Job Success
$100K+ earned
Available now
Offers consultations
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I build and stabilize AI automation, agents, and full stack SaaS products that need to work reliably in production, not just in demos. I’ve shipped and scaled systems for founders from Y Combinator, Founders Factory, FutureLabs, and Republic of Work. Founders I’ve built with have gone on to raise €2M+, and my AWS/serverless work ranks in the top 0.2% for DevOps. A few results: ⚡ Multi-tenant SaaS with 28% faster integrations ⚡ Serverless system running under 200ms latency at 10K+ users ⚡ AI RAG system improving support efficiency by 45% ⚡ Next.js migration reducing hosting costs by 15% ⚡ SaaS MVPs shipped to production, with founders raising after launch A lot of products today get built quickly with Cursor, Lovable, Bolt, Claude Code, or an early freelance team. Then real users arrive. That’s when the problems show up: messy code, fragile backends, AI features that worked in the demo but fail in production, scaling bottlenecks, unreliable automations, and rising AWS costs. I help turn that into a production-ready system with clean architecture, a solid backend, reliable AI behavior, and room to scale. I also build new products properly from idea to MVP to production. What I can help with: * AI agents, chatbots, and AI voice agents * Workflow automation and business process automation using n8n, Make, Zapier, and APIs * Production RAG, LLM, and knowledge-based systems * Full-stack SaaS development with Next.js, React, Node.js, TypeScript, JavaScript, and Python * Backend systems, REST APIs, third-party integrations, and multi-tenant architecture * PostgreSQL, Supabase, Stripe, AWS, serverless, performance, and cost optimization * Stabilizing fragile or AI-built MVPs before they become technical debt How I work: We can start small. Send me your app URL, repo, or brief with a short note on the problem. I’ll review the likely bottlenecks, scaling risks, reliability issues, and what I would fix first before you commit to anything bigger. From there, I can take technical ownership of the build: architecture, backend, integrations, AI systems, delivery, and the parts that usually stall. I work best with: * Funded startups starting with or moving beyond MVP * SaaS teams hitting scaling, reliability, or cost issues * Founders who want a senior engineer to take ownership, not just ship tickets I’m probably not the right fit if you’re looking for the cheapest possible build. I’m a fit when the product matters, users depend on it, and it has to work. Tech I work with often: Python, JavaScript, TypeScript, React, Next.js, Node.js, AWS, Supabase, PostgreSQL, Stripe, serverless, OpenAI, Claude, Gemini, RAG, LangChain, AI agents, n8n, Make, Zapier, automation, and APIs. If your product was built fast and now needs to work properly, or you want it built right from the start, send me the repo, app, or brief, and I’ll tell you what I’d fix first.
Ehtasham A. has worked .
Zenveus
Associated with
Zenveus
$100K+
earned
Maksym I.
$35/hr
97% Job Success
$7K+ earned
Available now
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👋 Hi there, I'm Maksym! As an expert Backend Developer and full stack developer, I bring 9+ years of commercial experience in software engineering, specializing in highly scalable, enterprise-grade backend development. Whether you are launching an intelligent ai backend, building a high-traffic platform, or looking to implement a robust backend nodejs architecture, I am the dedicated web developer and technical partner to help your company scale. My work as a Backend Developer strictly follows ISO 9001 and ISO 27001 security standards, ensuring enterprise-level reliability, data protection, and compliance from day one. With 180+ successful projects and 20,000+ engineering hours, I operate as a lead Backend Developer and python developer. I help businesses automate workflows, optimize cloud performance, and scale digital products utilizing node.js and modern cloud technologies. 🏆 Key Solutions & Results: – Scalable Engineering: 9+ years of experience as a Backend Developer building enterprise SaaS platforms, marketplaces, and AI-driven applications. – Proven Track Record: 180+ high-performance projects delivered across eCommerce, healthcare, fintech, and enterprise systems as a top-tier web developer. – Deep Expertise: 20,000+ engineering hours serving as a dedicated full stack developer and backend architecture specialist. – Global Delivery: Flawless execution across 40+ countries (including the US, UK, Western Europe, and Australia), delivering resilient backend development solutions. – AI-Driven Velocity: Product delivery speed increased by 60-70% using advanced, AI-assisted engineering workflows. – Database Optimization: Up to 60% performance improvement across any backend nodejs or Python ecosystem. – Infrastructure Efficiency: Cloud improvements engineered by an expert Backend Developer, enabling 45% more concurrent users with significantly reduced AWS costs. 📌 Core Specializations: 🤖 AI Systems & Automation • Custom LLM/RAG architectures and AI chatbots built by an expert python developer and Backend Developer. • Efficiency optimization and automated pipelines for your ai backend to cut manual operational costs by up to 70%. 💻 Custom Web Development • Rapid, AI-first MVP and SaaS platforms (React, node.js, NestJS) delivered by a skilled full stack developer. • Secure, ISO-compliant application architecture designed for modern, high-load backend development. ☁️ Backend Architecture & Cloud Infrastructure • High-performance AWS/Docker microservices built for complex, high-traffic ecosystems by a senior Backend Developer. • Database and query speed optimization (up to 60% improvements) managed by an experienced web developer. 📱 Mobile & Cross-Platform Syncing • React Native & Flutter apps seamlessly synced with your core cloud infrastructure. • Reduced latency via optimized backend nodejs pipelines and secure, AI-powered payment gateways. ✅ Why Work With Me? ✅ 60-70% faster delivery via AI-assisted engineering workflows. ✅ ISO 9001 & 27001 compliant development and security standards. ✅ 30% lower server costs optimized by an expert Backend Developer and node.js specialist. ✅ Advanced AI integration (GPT, Claude, LangChain) handled smoothly by an experienced full stack developer. ✅ 2-3 month MVP delivery to get your product to market and scaling quickly. Looking for a reliable Backend Developer, full stack developer, or python developer who can design scalable systems, build secure backend development architecture, and turn your ideas into production-ready products? Let’s connect! ☎️ Last updated: 30.06.2026
Maksym I. has worked .
HyggeSoftware Ou
Associated with
HyggeSoftware Ou
$200K+
earned
Asad M.
$60/hr
99% Job Success
$400K+ earned
Available now
Offers consultations
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Need a Full Stack Developer who ships production-grade AI-integrated SaaS on time? You're in the right spot. 🏆 𝟭𝟬+ years as a Full Stack Developer (ex-Amazon, UT Austin MS) 📊 $𝟰𝟬𝟬𝗞+ earned on Upwork across 𝟴𝟱 Full Stack Developer projects 🎯 Top Rated Plus with 𝟵𝟵% Job Success Score ⚡ 𝟭𝟬𝟬+ production builds as lead Full Stack Developer ✅ Full Stack Developer for AI agents, SaaS MVPs, and workflow automation 💼 Austin, TX based | Full Stack Developer team with global capacity ⭐⭐⭐⭐⭐ 𝑰 𝒉𝒂𝒗𝒆 𝒘𝒐𝒓𝒌𝒆𝒅 𝒘𝒊𝒕𝒉 𝒔𝒆𝒗𝒆𝒓𝒂𝒍 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒔𝒆𝒓𝒗𝒊𝒄𝒆 𝒑𝒓𝒐𝒗𝒊𝒅𝒆𝒓𝒔 𝒂𝒏𝒅 𝒃𝒆𝒆𝒏 𝒊𝒎𝒑𝒓𝒆𝒔𝒔𝒆𝒅 𝒘𝒊𝒕𝒉 𝑨𝒔𝒂𝒅 𝒂𝒏𝒅 𝒉𝒊𝒔 𝒕𝒆𝒂𝒎 𝒐𝒏 𝒆𝒗𝒆𝒓𝒚 𝒍𝒆𝒗𝒆𝒍. 𝑬𝒙𝒄𝒆𝒍𝒍𝒆𝒏𝒕 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒐𝒓𝒔, 𝒑𝒓𝒐𝒂𝒄𝒕𝒊𝒗𝒆 𝒊𝒏 𝒑𝒓𝒐𝒃𝒍𝒆𝒎-𝒔𝒐𝒍𝒗𝒊𝒏𝒈, 𝒂𝒏𝒅 𝒕𝒉𝒆 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 𝒐𝒖𝒕𝒑𝒖𝒕 𝒘𝒂𝒔 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏-𝒓𝒆𝒂𝒅𝒚 𝒇𝒓𝒐𝒎 𝒅𝒂𝒚 𝒐𝒏𝒆. (Julian M., Upwork, 2025) As a Senior Full Stack Developer and agency lead based in Austin, I build AI-integrated SaaS platforms and custom automation for founders who need real engineering judgment. My team and I focus on Full Stack Developer work that actually ships: React and TypeScript frontends, Python and Node.js backends, AI layers that hold up in production. Full Stack Developer-first approach, agency-grade execution. Ex-Amazon Full Stack Developer, UT Austin Computer Science. 🔶 𝗣𝗿𝗼𝗽𝗧𝗲𝗰𝗵 𝗔𝗜 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 ($𝟳𝟬𝗞): Lead Full Stack Developer on an AI-driven real estate assistant for a US startup. React, TypeScript, Python, OpenAI API, Supabase. Shipped to production. 🔶 𝗘𝗹𝗲𝘃𝗲𝗻𝗟𝗮𝗯𝘀 𝗩𝗼𝗶𝗰𝗲 𝗔𝗴𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺: Full Stack Developer architecture connecting voice AI to Zapier, CRM, and calendar booking. 🔶 𝗟𝗶𝗻𝗸𝗲𝗱𝗜𝗻 𝗟𝗲𝗮𝗱 𝗚𝗲𝗻 𝗼𝗻 𝗻𝟴𝗻: Full Stack Developer build processing 10K+ profiles/day with AI enrichment, deduplication, and CRM sync. 🔶 𝗠𝘂𝗹𝘁𝗶-𝗧𝗲𝗻𝗮𝗻𝘁 𝗔𝗜 𝗦𝗘𝗢 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: Full Stack Developer from zero to launch. Next.js, FastAPI, PostgreSQL, LangChain. 🚀 𝗔𝗜-𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗦𝗮𝗮𝗦 & 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 ✔️ Full Stack Developer for AI agents, RAG systems, LangChain and LangGraph workflows ✔️ OpenAI API, Claude API, and custom LLM integration with prompt reliability and context management ✔️ Full Stack Developer on FastAPI, Node.js, Next.js, Supabase, and PostgreSQL data layers 🔄 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 ✔️ Full Stack Developer for n8n, Zapier, and Make (dot) com at production scale ✔️ Full Stack Developer integrations: CRMs, databases, email, payments, AI services ✔️ Error handling, retry logic, and data consistency across systems ⚡ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 𝗠𝗩𝗣 𝘁𝗼 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗦𝗮𝗮𝗦 ✔️ Full Stack Developer builds on React, TypeScript, Python, MVP to production-grade SaaS ✔️ Multi-tenant architecture, auth, permissions, and scaling patterns ✔️ DevOps and deployment on AWS, Vercel, Railway, and Supabase 🎯 𝗪𝗵𝗼 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗮𝘀 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 🔹 Founders building AI-native SaaS products from zero 🔹 Agencies needing Full Stack Developer capacity for client work 🔹 Series A to C startups scaling production systems 🔹 Operators replacing broken n8n, Zapier, or Make .com workflows with a real Full Stack Developer 𝗡𝗼𝘁 𝗮 𝗳𝗶𝘁 𝗶𝗳: you need a solo Full Stack Developer for a $500 landing page, WordPress customization, or trading/crypto systems. 💡 𝗛𝗼𝘄 𝘄𝗲 𝘄𝗼𝗿𝗸: ✔️ Day 1-3: Discovery call, architecture doc, and scoped milestones from your Full Stack Developer team ✔️ Week 1: First working increment deployed to staging ✔️ Ongoing: Weekly demos, async Slack updates, documented handoffs from the Full Stack Developer lead ✔️ What you get: Production Full Stack Developer output, full source, handoff docs, direct team access 📞 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗺𝗼𝘃𝗲? Send the job details and we will reply with a scoped plan within 24 hours. Looking for a Full Stack Developer who ships? Let's talk.
Asad M. has worked .
Mohsin J.
$28/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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✔︎ TOP RATED PLUS | 100% Client Satisfaction | 9+ Years Enterprise Delivery ✔︎ Full Stack Expert: .NET Core | C# | Python | React | Node.js | AI Integration ✔︎ Specialized in SaaS, FinTech, HealthTech, ERP, CRM, Marketplaces, and Cloud Platforms ✔︎ AI-Powered Apps | Scalable SaaS Architecture | Production-Ready Full Stack Systems Are you building a SaaS product, an AI-powered web application, an ERP system, or an enterprise platform that needs to scale fast, perform under pressure, and ship on time? I design and deliver full-stack systems using .NET Core, C#, Python, React, and Node.js, handling everything from database architecture to cloud deployment, with clean code, full ownership, and zero shortcuts from day one. 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𖧹 .NET and C# Development: ASP.NET Core, .NET 6/7/8, MVC, Web API, Entity Framework, LINQ, Blazor 𖧹 AI and Automation: OpenAI API, LangChain, AI Agents, Chatbot Development, Prompt Engineering, AI-Powered SaaS Products 𖧹 Python Development: FastAPI, Django, REST APIs, Automation Scripts, Data Processing, AI and ML Pipeline Integration 𖧹 React and Node.js: ReactJS, NextJS (SSR/SSG), NodeJS, NestJS, ExpressJS, Angular, REST APIs, GraphQL APIs 𖧹 Frontend Engineering: TypeScript, Tailwind CSS, Material UI, Ant Design, Bootstrap, Framer Motion, Redux Toolkit, React Query 𖧹 Backend Systems: Microservices Architecture, gRPC, WebSockets, SignalR, Kafka, RabbitMQ, Event-Driven Design 𖧹 Databases and Caching: PostgreSQL, SQL Server, MySQL, MongoDB, Redis, Firebase, DynamoDB, Firestore, Schema Optimization, Indexing 𖧹 Architecture and Security: Multi-Tenant SaaS, RBAC, OAuth2, JWT, Secure Auth, Stripe API, Monolith to Microservices Migration 𖧹 Cloud and DevOps: AWS (EC2, Lambda, ECS, S3), Azure App Services, Azure Functions, Docker, Kubernetes, Terraform, CI/CD, GitHub Actions, GitLab, Vercel, DigitalOcean, Heroku 𖧹 Performance and Testing: Core Web Vitals, API Latency Optimization, Unit Testing, Jest, Cypress, Playwright, Mocha, PWA, SEO Optimization, Production Hardening 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗧𝗵𝗮𝘁 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 ➜ BookedSolid | AI Appointment Automation SaaS Tech: OpenAI, Twilio, Node.js, React, MongoDB 𖧹 Built an AI-powered booking engine with natural language scheduling via SMS and voice 𖧹 Automated end-to-end appointment workflows, cutting manual handling by 80% ➜ Renters / GetRenters | FinTech SaaS Platform Tech: Next.js, Tailwind CSS, Node.js, AWS Lambda, MongoDB 𖧹 Architected lease management dashboards, workflows, and Stripe Connect payment integration 𖧹 Optimized all APIs for 40% faster load times, now actively serving 10,000+ users ➜ Ucardia | HealthTech and Wellness Platform Tech: ReactJS, NestJS, Python, PostgreSQL, Redis 𖧹 Built a HIPAA-compliant clinician portal with real-time patient data streams 𖧹 Integrated wearable devices, automated health notifications, and a fully secure API layer ➜ DigitalSchools | EdTech ERP System Tech: .NET Core, React.js, Azure 𖧹 Delivered a complete school management platform covering Admissions, Fees, Attendance and Multi-Tenant architecture 𖧹 Implemented enterprise-grade RBAC access control across all user roles and modules ➜ High-Traffic E-Commerce and Marketplace Platform Tech: MERN Stack, Node.js, PostgreSQL 𖧹 Engineered a custom cart, payment gateway integration, and dynamic inventory management system 𖧹 Optimized fully for mobile, desktop, and high-concurrency production traffic 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗔𝗴𝗮𝗶𝗻 𝗮𝗻𝗱 𝗔𝗴𝗮𝗶𝗻 ✔︎ End-to-End Ownership: I handle Architecture, Database, Backend, Frontend, Cloud, and Deployment myself ✔︎ AI-Ready Development: Every system I build is structured to integrate AI features today or in the future ✔︎ Clean and Strictly Typed Code: TypeScript, C#, Python, and Node.js, always maintainable and fully documented ✔︎ Scalable by Design: Multi-tenant SaaS, microservices, and cloud-native architecture from the ground up ✔︎ Transparent and Reliable: Daily progress updates, structured Agile workflow, no surprises, and no ghosting ever Whether you are building a SaaS product, an AI-powered platform, an ERP or CRM system, a FinTech application, a HealthTech dashboard, or a high-traffic marketplace, I deliver production-tested, enterprise-grade solutions built for real-world scale and long-term growth. Send me a message so we can discuss. Full Stack, MERN Stack, MEAN Stack, .NET, ASP.NET Core, C#, Blazor, MVC, Web API, Python, FastAPI, Django, Node.js, NestJS, ExpressJS, ReactJS, Next.js, Angular, Vue.js, TypeScript, Tailwind CSS, Material UI, Ant Design, Framer Motion, Redux Toolkit, React Query, Context API, REST API, GraphQL, gRPC, WebSockets, SignalR, MongoDB, PostgreSQL, MySQL, SQL Server, Redis, DynamoDB, Firestore, Kafka, RabbitMQ, Microservices, Multi-Tenant SaaS, OAuth2, JWT, RBAC, Stripe API, OpenAI API, LangChain, AI Agents, AWS, Lambda, EC2, S3, ECS, Azure Functions, Azure App Services, Docker
Mohsin J. has worked .
Aliaksei M.
$40/hr
$1K+ earned
Available now
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I specialize in building and optimizing high-performance web applications with a strong focus on backend architecture and modern frontend development. My work is centered around delivering reliable, scalable solutions that handle real-world business needs. With solid experience across Java, PHP, Python, and JavaScript ecosystems, I develop robust APIs, microservices, and full-stack applications. On the frontend, I build fast and responsive interfaces using React and Next.js, ensuring smooth user experiences and maintainable codebases. ✅ What I can do for you: - Develop scalable backend systems (Java Spring, Laravel, Django, FastAPI) - Build modern web apps with React / Next.js - Design and integrate REST & GraphQL APIs - Optimize databases (PostgreSQL, MySQL, MongoDB) - Implement real-time features (WebSockets) - Integrate third-party services (payments, AI, analytics) - Improve performance, scalability, and security 💼 If you need a reliable developer who can handle both backend complexity and frontend delivery let’s connect. 🔑 KEYWORDS: Full Stack Developer, Backend Developer, Java Developer, Spring Boot, PHP Developer, Laravel Developer, Python Developer, Django, FastAPI, Node.js, NestJS, React Developer, Next.js Developer, TypeScript, JavaScript, REST API, GraphQL, Microservices, WebSockets, PostgreSQL, MySQL, MongoDB, Redis, Kafka, RabbitMQ, Docker, AWS, CI/CD, API Integration, Performance Optimization, Scalable Systems, SaaS Development
Aliaksei M. has worked .
Jawad A.
$25/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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I'm a Python focused Full Stack & AI Engineer and I build backend systems, APIs, AI/LLM integrations and complete web platforms (Next.js + React) for startups, end to end. If you need someone who can write production Python code AND ship the frontend that connects to it, this is the right profile. ━━━ 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃 ━━━ ✅ AI SaaS Products & MVPs End-to-end SaaS platforms with authentication, billing, dashboards, multi-tenant architecture, AI features and cloud deployment. ✅ Backend Development & APIs Python, FastAPI, Django, Flask, REST APIs, authentication, database design, third-party integrations, scalable backend architecture ✅ Full-Stack Web Platforms Next.js + React frontends connected to Python/FastAPI or Django backends, TypeScript, Tailwind, subscription billing (Stripe), role-based auth, admin dashboards, multi tenant architecture ✅ Automation & Scripting Python automation scripts, web scraping, data processing pipelines, scheduled jobs, workflow automation (n8n, Zapier integrations) ✅Data Handling & Analysis Pandas, NumPy, data cleaning, transformation, reporting, ETL pipelines connecting databases, APIs and spreadsheets ✅ AI & LLM Integrations RAG pipelines, MCP based tool integrations, LangChain, vector databases, OpenAI/Claude/Gemini API integrations, AI agents, chatbots, document processing all built on Python backends ✅ Database & Cloud PostgreSQL, MongoDB, Supabase deployed on AWS, GCP, Docker, with CI/CD pipelines for production ━━━ 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 ━━━ Backend: Python, FastAPI, Django, Flask, Pandas, NumPy, Node.js, Nest.js, Express.js Frontend: Next.js, React, Vue.js, TypeScript, Tailwind, Javascript AI: OpenAI, Claude, Gemini, LangChain, RAG, MCP, vector DBs Databases: PostgreSQL, MongoDB, Supabase, Firebase Cloud: AWS, GCP, Azure, Vercel, Docker, Kubernetes Automation: n8n, Make, Zapier, Zoho ━━━ 𝐖𝐇𝐎 𝐈 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 ━━━ Startup founders, SaaS companies and businesses looking to launch new products add AI capabilities, automate workflows or scale existing applications and who need a Python developer for backend, automation or AI features and who often also need a Next.js/React frontend built on top of it. Companies integrating AI into existing Python or full stack platforms. I prefer long term engagements where I can own both the Python backend and the frontend that depends on it. ━━━ 𝐖𝐇𝐘 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐌𝐄 ━━━ I write clean, maintainable Python code as the foundation, then build the frontend and AI layers on top so the whole system fits together instead of feeling bolted on. I communicate clearly, give realistic timelines and don't disappear mid project. 𝐋𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐝 𝐰𝐞 𝐜𝐚𝐧 𝐬𝐜𝐡𝐞𝐝𝐮𝐥𝐞 𝐚 𝐟𝐫𝐞𝐞 𝟑𝟎 𝐦𝐢𝐧 𝐜𝐚𝐥𝐥 𝐭𝐨 𝐬𝐜𝐨𝐩𝐞 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭.
Jawad A. has worked .