I'm a software engineer with 8 years of experience building mobile and web applications using React, React Native / Expo, Node.js, Supabase, Firebase, and Ruby on Rails. Over the years, I've worked on more than 30 professional projects across a variety of industries, gaining extensive experience building user-facing products from idea to production. While I have a strong technical foundation, I'm also highly product-focused. My goal is not simply to write code, but to build products that solve real problems, deliver value to users, and drive actual business revenue. I believe the best products are built iteratively. Rather than overengineering solutions, I focus on identifying the core features that create the most value, delivering them quickly, and establishing a solid foundation that can evolve as the product grows. When I'm not working on client projects, I'm building my own applications. That hands-on experience of designing, shipping, and iterating on products gives me a practical understanding of both the technical and product side of software development, which helps me work effectively with founders and entrepreneurs. I work mainly with Claude Code, which allows me to develop much faster and offer competitive pricing while still delivering high-quality work. Do not hesitate to reach out to discuss your project(s)! Best regards, Karim

I build high-performance, full-stack web applications for startups, with over a decade of specialization in ruby on rails. my philosophy: true simplicity is the art of managing hidden complexity. i build sophisticated projects in an organized, clear way. my full-stack expertise includes: - database architecture & backend development - front-end polish with html, plain css, tailwind css and stimulus - third-party api integration & stripe payment implementation - real-time features with hotwire and action cable - api development - javascript, jquery, ajax, bootstrap - software testing, functional test and unit test, bdd, rspec - git, ci server integration, passenger, capistrano - vps, ec2 and heroku deployment have an idea? let's build something fast, reliable, and scalable together. send me a message anytime !

Hi, I am Umair Raza, a Top Rated Full Stack Developer. I help startups and growing companies build scalable, high-performance web applications that don’t break as they grow. I’m a Top Rated Full Stack Developer with 7+ years of experience, $500K+ in earnings, and a 100% Job Success Score on Upwork—backed by long-term client relationships and consistently strong results. If you’re building a SaaS product, scaling an existing platform, or need a reliable engineer who understands both code and business impact—you’re in the right place. WHAT I DO I work with founders, startups, and product teams to turn ideas into production-ready applications that are fast, secure, and built for scale. I don’t just “build features”—I help you: • Design scalable architectures • Improve performance and reliability • Reduce technical debt • Ship faster with clean, maintainable code WHAT MAKES ME DIFFERENT Most developers focus only on code. I focus on outcomes. I combine strong engineering fundamentals with product thinking to build systems that: • Handle real-world scale without breaking • Deliver smooth, modern user experiences • Are easy to maintain and extend • Support long-term business growth You’re not just hiring a developer—you’re getting a technical partner who thinks ahead. SERVICES Full Stack Development • End-to-end web application development • SaaS platforms from MVP to scale • Clean architecture & maintainable code • Microservices & modular systems Frontend Development • React.js, Next.js, Vue.js • Responsive, high-performance UI • Modern UX with SEO-friendly structure • Tailwind, Bootstrap, Material UI Backend Development • Node.js, Express.js, NestJS • Python, Django • REST APIs & GraphQL • Secure authentication (JWT, OAuth) • Scalable backend systems Database Development • PostgreSQL, MySQL • MongoDB, Redis • Data modeling & optimization • High-performance queries DevOps & Cloud • AWS (EC2, S3, Lambda) • Docker & containerized deployments • CI/CD pipelines • Nginx, Linux server management API Integrations • Stripe, PayPal, Braintree • Twilio, Google Maps • Third-party & custom APIs • System integrations across platforms AI & Automation (if needed) • OpenAI / GPT integrations • AI-powered workflows • Chatbots & assistants • RAG-based systems INDUSTRIES I’VE WORKED WITH • SaaS & B2B Platforms • AI & Automation Products • Marketplaces & eCommerce • EdTech & Learning Platforms • Healthcare & Wellness Apps • CRM & Internal Tools • Startup MVPs & Scale-ups HOW I WORK Understand Your Goals I take time to understand your product, users, and business objectives. Plan & Architect I design scalable systems that won’t need rebuilding later. Build Clean, efficient, production-ready code with best practices. Optimize Performance, security, and reliability improvements. Deploy & Support Smooth launches and ongoing improvements as you grow. TECH STACK Frontend: React.js, Next.js, Vue.js, JavaScript, TypeScript, HTML5, CSS3 Backend: Node.js, Express.js, NestJS, Python, Django Databases: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS, Docker, CI/CD, Nginx, Linux Tools: Git, GitHub, Postman, Jira, Trello, Asana WHY CLIENTS CHOOSE ME • $500K+ earned on Upwork • 100% Job Success Score • 7+ years of hands-on experience • Strong full stack expertise (frontend + backend + DevOps) • Clear communication and fast response • Focus on performance, scalability, and long-term quality • Reliable delivery and ongoing support If you need a Full Stack Developer who can take ownership—from idea to deployment—and build something that actually works at scale, let’s talk. Send me a message with your project details, and I’ll help you move forward with clarity and confidence.

A lot of 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐝𝐨𝐧’𝐭 𝐫𝐞𝐚𝐥𝐢𝐳𝐞 𝐡𝐨𝐰 𝐦𝐮𝐜𝐡 𝐦𝐨𝐧𝐞𝐲 𝐬𝐥𝐢𝐩𝐬 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 operational cracks, sometimes up to $𝟑𝟎𝟎𝐊 𝐲𝐞𝐚𝐫𝐥𝐲. I 𝐜𝐫𝐞𝐚𝐭𝐞 𝐀𝐈 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐜𝐚𝐩𝐭𝐮𝐫𝐞 𝐭𝐡𝐚𝐭 𝐥𝐨𝐬𝐭 𝐯𝐚𝐥𝐮𝐞 and put it back to work. I’ve partnered with businesses across healthcare, distribution, hospitality, construction, local services, and SaaS to implement fully production-ready AI solutions. Not experiments. Not proof-of-concepts. Systems that run reliably, 24/7. 𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐀𝐜𝐫𝐨𝐬𝐬 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 → AI voice note-taking saving doctors 6+ hours/week → 50% drop in patient follow-up queries with automated summaries → HIPAA-compliant voice systems converting consultations into clear patient-friendly insights → Clinical support chatbots with secure, account-level data access 𝐃𝐢𝐬𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧 & 𝐅𝐞𝐧𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 → Automated order processing → Reduced processing time from 30 minutes to under 60 seconds → 97% accuracy, 70% faster fulfillment, zero manual data entry → Conversational AI portal for orders, invoices, inventory, and reporting 𝐇𝐨𝐬𝐩𝐢𝐭𝐚𝐥𝐢𝐭𝐲 → Voice + WhatsApp AI handling 95%+ of bookings and inquiries → No missed leads, fully GDPR-compliant 𝐅𝐢𝐧𝐭𝐞𝐜𝐡 → AI-driven lead discovery for grants, capital projects, and property activity → 90%+ relevance, eliminating manual prospecting 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐀𝐈 & 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: LangChain, LangGraph, LlamaIndex, Pydantic AI, OpenAI, Claude, Bedrock, Vertex AI, MCP 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Autonomous agents, multi-agent workflows, orchestration pipelines 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈: Retell AI, OpenAI Realtime, Whisper, ElevenLabs, TTS/STT systems 𝐑𝐀𝐆 & 𝐒𝐞𝐚𝐫𝐜𝐡: Pinecone, Weaviate, Qdrant, ChromaDB, OpenSearch, hybrid retrieval systems 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞: OCR, PDF parsing, PO automation, ERP integrations (NetSuite, Oracle) 𝐄𝐯𝐚𝐥𝐮𝐚𝐭𝐢𝐨𝐧 & 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠: LangSmith, Arize, DeepEval, prompt testing & LLM performance tracking 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐈𝐧𝐟𝐫𝐚: Python, FastAPI, Django, Docker, Kubernetes, AWS, GCP, Azure 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & 𝐃𝐚𝐭𝐚: React, Next.js, PostgreSQL, MongoDB, Redis, ETL pipelines 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: HubSpot, Salesforce, NetSuite, Zapier, Make, Slack, Stripe, APIs 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐂𝐚𝐧 𝐄𝐱𝐩𝐞𝐜𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞 Clear scope from day one: no hidden costs or surprises Reliable delivery: 94% of projects completed on time and within budget Fast communication:esponses typically within 30 minutes Full ownership: from idea to deployment, I handle everything Proven quality: consistent 5-star results and top-tier execution Ready to build something great together? Feel free to invite me to your job or schedule a call.

Two of the products I built were acquired. One raised $289K in funding off the MVP I shipped. Over the past 7 years, I've delivered 40+ products across SaaS, AI tools, marketplaces, and internal systems. I take projects from idea to production and stay accountable for what ships. Not just the code, the architecture decisions, the tradeoffs, the things that matter six months after launch. WHAT I'VE BUILT: • AI scheduling assistant with LLM-driven email parsing, calendar logic, and a user dashboard. The founder raised $289K after the MVP launched • Long-term engineering for a UK digital agency across multiple products and client projects. The agency was later acquired • Content automation platform using n8n, Slack, and AI that replaced hundreds of hours of manual work • Real-time crypto analytics system with BigQuery pipelines, AI summaries, and a Next.js dashboard • Health tracking app with 50+ device integrations, React Native mobile, and live doctor consultations MY STACK: • Frontend: React, Next.js, TypeScript, Tailwind CSS • Backend: Node.js, NestJS, Python, Ruby on Rails • Database: PostgreSQL, MongoDB, BigQuery • AI: LangChain, RAG, OpenAI, Gemini, vector databases • Automation & Integrations: Stripe, GraphQL, REST, AWS, n8n, Make HOW I WORK: • You share your requirements. I come back within a few hours with questions and a rough plan • Weekly demos with working software. No disappearing for two weeks • Clean code, proper Git workflow, documented. Easy to hand over or build on top of I take on full stack product builds, AI integration, workflow automation, and ongoing engineering contracts. If you've got something stuck or something new to build, send me the details and I'll get back to you quickly.

🏆 𝐓𝐨𝐩 𝟑% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 ⭐⭐⭐⭐⭐ I've been making custom software for more than ten years now. I'm really good at using Ruby on Rails, NodeJS, and ReactJS. On Upwork, I'm in the top 3% of developers! I love making software that's super good, works for a lot of people, and is easy to keep up-to-date. So, if you have an idea for a software, I'm your person! I've finished 42 projects so far and spent over 11,000 hours doing it. Every time, I make sure to solve tough problems in smart ways. Whether you want to make a new website, fix up an old one, or add cool new stuff, I can help. I believe in talking a lot with you to understand exactly what you need and helping you through the whole process. One of my recent wins was helping a client sell their business for $2.25 Million! Looking for someone with lots of experience, who you can trust, and who's really good at what they do? Let's make your ideas real!

Working in AI since 2019 | Ex-DataRobot, Ex-Chegg, Ex-Starz, Ex-BookRenter | over 15 years of experience in web development, AI, ML and QA automation. I specialize in creating efficient, scalable digital solutions that help businesses meet their goals across industries like e-commerce, education, logistics, and media. Quick Facts: ✅ Delivered 30+ projects in e-commerce, education, and logistics ✅ Expert in JavaScript, Python, React, and QA Automation ✅ Focused on reducing code complexity and maintenance costs Skills and Expertise: - Expert in ML & AI, building intelligent backends with TensorFlow, PyTorch, OpenAI APIs, LangChain, and vector databases for next-gen automation and real-time insights. - Frontend & Backend Development: JavaScript, TypeScript, React, Django, Ruby on Rails, FastAPI, Node.js - Databases: PostgreSQL, MySQL, MongoDB, Redis - Testing & Automation: n8n, Cypress, Playwright, Selenium, REST API testing, performance testing - DevOps: Docker, Jenkins, GitHub Actions, AWS What I Offer: I deliver more than code - I provide strategic solutions. My focus is on simplifying processes, optimizing workflows, and ensuring long-term scalability and cost-effectiveness. Types of Projects: - AI-driven solutions like speech-to-text, AI chatbots, virtual assistants, AI agents, recommendation systems, content analysis, and automation tools. - Web applications, e-commerce platforms, and marketplaces - SaaS platforms (mobile + web clients) - Data Science and Machine Learning applications I’m passionate about building future-ready solutions that blend technical expertise with a proactive approach. Let’s discuss how I can contribute to your next project!

Full-stack developer specializing in React and Node.js with 15+ years building production SaaS applications for startups and enterprises. Proven track record delivering scalable solutions including complex multi-tenant applications, API-first architectures, and high-performance frontend systems. Recent focus includes AI integration using LLM APIs and RAG pipelines for production systems. Core expertise: - React and Next.js frontend development (TypeScript, responsive design, performance optimization) - Node.js backend systems (RESTful APIs, database architecture, scaling) - Full-stack SaaS platforms (multi-tenant architecture, subscription systems, complex features) - AI integration (LLM APIs, RAG systems, production AI workflows) - Enterprise-scale applications (complex codebases, performance optimization, system architecture) Technical stack: React, Next.js, TypeScript, Node.js, PostgreSQL, Python, AWS Experience: Delivered 30+ SaaS products and complex applications. Senior roles at Roadmunk and Barnes & Noble. Built systems serving millions of users across 40+ countries. Extensive experience with large codebases (300K+ lines), performance optimization, and enterprise architecture. Client testimonials: "Jawad is an excellent engineer who's taken important roles for Aura's engineering team." — Steve Lee, CEO at Aura Health "He was able to familiarize himself with a 300K+ line TypeScript codebase very quickly and started contributing almost immediately." — Zenon "His experience is broad, handling AWS servers, to identifying issues causing CPU surges. Our application is running smoothly and can handle heavier usage due solely on his skills, knowledge and dedication." — Kethleen I., Co-founder

I am a full-stack web developer specializing in back-end development with Ruby on Rails. I can help bootstrap your product from scratch or get your MVP to the next level with my passion for clean code. I have been working in web development for almost 10 years, but I'm always trying to stay on the edge of the industry and constantly improving myself. Throughout my career, I've developed a diverse skill set: ● Ruby on Rails (e.g., dry-rb, view components, active record/arel) ● Hotwired (Turbo, Stimulus) ● PostgreSQL, MySQL, MongoDB ● GraphQL, JSON:API, REST ● DevOps: Nginx, Passenger, AWS (EC2, EB, ESC), Serverless AWS Lambda, CI/CD ● JavaScript / TypeScript ● React.js (with various STM: redux/effector/reatom/zustand), React Native, familiar with Vue.js ● CSS (Tailwind/Sass) ● HTML (Pug/Slim/Erb/JSX) ● Git/SVN ● API: AWS, DigitalOcean, ChatGPT, Google, MS Graph, MS BotFramework, Facebook, Geth Let me share a bit about my journey. I started my career as a back-end developer, dedicating 3 years to creating robust and efficient server-side solutions. However, my curiosity and drive led me to explore the front-end, where I discovered my love for building stunning user interfaces that captivate and engage. Since then, I've been working as a full-stack developer, merging my back-end expertise with my front-end creativity to deliver comprehensive solutions

𝐈 𝐛𝐮𝐢𝐥𝐝 𝐀𝐈 𝐚𝐠𝐞𝐧𝐭𝐬, 𝐀𝐈 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬, 𝐀𝐈 𝐜𝐡𝐚𝐭𝐛𝐨𝐭𝐬, 𝐯𝐨𝐢𝐜𝐞 𝐀𝐈 𝐚𝐠𝐞𝐧𝐭𝐬, 𝐚𝐧𝐝 𝐀𝐈 𝐒𝐚𝐚𝐒 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 𝐭𝐡𝐚𝐭 𝐡𝐞𝐥𝐩 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐫𝐞𝐬𝐩𝐨𝐧𝐝 𝐟𝐚𝐬𝐭𝐞𝐫, 𝐪𝐮𝐚𝐥𝐢𝐟𝐲 𝐥𝐞𝐚𝐝𝐬, 𝐛𝐨𝐨𝐤 𝐦𝐨𝐫𝐞 𝐜𝐚𝐥𝐥𝐬, 𝐚𝐧𝐝 𝐫𝐞𝐦𝐨𝐯𝐞 𝐦𝐚𝐧𝐮𝐚𝐥 𝐰𝐨𝐫𝐤. I am a senior software engineer with 13+ years of development experience and $300K+ earned on Upwork, now focused on AI automation, AI agents, CRM automation, voice AI, RAG chatbots, OCR/document AI, and SaaS workflow automation. My edge is simple: I do not build fragile “tool connections.” I build real business workflows with proper API logic, CRM structure, AI decision-making, error handling, human handoff, reporting, and clean data flow. I have worked on AI voice agents, GoHighLevel and HubSpot automations, WhatsApp AI chatbots, n8n, Zapier and Make. com workflows, Apollo lead generation systems, Shopify abandoned cart recovery, RAG document pipelines, OCR extraction, and SaaS onboarding automation. If you need an automation that can handle real leads, real customers, messy data, failed APIs, missed follow-ups, and day-to-day business pressure, I can build it properly. ────────────────────────── ⬛ 𝐀𝐈 𝐀𝐔𝐓𝐎𝐌𝐀𝐓𝐈𝐎𝐍 & 𝐂𝐑𝐌 𝐖𝐎𝐑𝐊𝐅𝐋𝐎𝐖𝐒 → GoHighLevel automation for lead capture, missed-call text back, booking, nurture, pipeline updates, SaaS workflows, snapshots, funnels, calendars, Twilio, A2P, and follow-up → HubSpot automation for lead routing, lead scoring, lifecycle stages, deal updates, email sequences, sales pipelines, and CRM workflows → Salesforce and Zoho CRM automation for lead routing, opportunity updates, task workflows, reporting, sales process automation, and API-based CRM integrations → n8n automation for custom workflows, AI logic, webhook handling, API connections, data routing, backend operations, retries, and error handling → Make. com and Zapier automation for forms, CRMs, emails, spreadsheets, Slack, Airtable, Calendly, Notion, Gmail, and multi-app business workflows → WhatsApp automation using Twilio, WhatsApp Cloud API, OpenAI, CRM triggers, AI replies, booking links, lead qualification, and follow-up flows → Airtable, Google Sheets, monday. com, Slack, Notion, Gmail, Outlook, ClickUp, and internal dashboard automation ────────────────────────── ⬛ 𝐀𝐈 𝐀𝐆𝐄𝐍𝐓𝐒, 𝐂𝐇𝐀𝐓𝐁𝐎𝐓𝐒 & 𝐕𝐎𝐈𝐂𝐄 𝐀𝐈 → AI sales agents that qualify leads, score intent, send follow-ups, book calls, and update CRM pipelines → AI voice agents using VAPI, Retell AI, Twilio, ElevenLabs, OpenAI GPT-4o, and GoHighLevel for inbound calls, outbound calls, missed calls, appointment booking, and lead qualification → Website AI chatbots, WhatsApp chatbots, Facebook chatbots, support bots, sales bots, FAQ bots, and human handoff flows → Internal AI workflow agents using OpenAI, Claude, OpenClaw, Airtable, Slack, APIs, and business data → RAG chatbots and knowledge assistants that search PDFs, SOPs, policies, contracts, help docs, websites, and internal documents → OCR and document AI workflows for extracting, cleaning, classifying, and syncing data from PDFs, forms, invoices, files, and business documents ────────────────────────── ⬛ 𝐀𝐈 𝐒𝐀𝐀𝐒 & 𝐅𝐔𝐋𝐋-𝐒𝐓𝐀𝐂𝐊 𝐀𝐈 𝐒𝐘𝐒𝐓𝐄𝐌𝐒 → AI SaaS MVPs using React, Next.js, Node.js, Python, FastAPI, Django, Ruby on Rails, PostgreSQL, MongoDB, Redis, and OpenAI → SaaS workflows for onboarding, billing activation, account setup, client portals, notifications, dashboards, support flows, lifecycle automation, and internal operations → GoHighLevel SaaS mode, white-label SaaS setup, sub-accounts, snapshots, funnels, calendars, pipelines, Twilio, A2P, Stripe billing, and client onboarding automation → AI lead handling systems that reply instantly, qualify intent, tag leads as Hot/Warm/Cold, book appointments, move opportunities, and notify the team only when action is needed → Custom backend automation logic when no-code tools are not enough ────────────────────────── ⬛ 𝐓𝐎𝐎𝐋𝐒 & 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌𝐒 OpenAI, GPT-4o, Claude, Assistants API, function calling, LangChain, LlamaIndex, RAG, Pinecone, ChromaDB, PGVector, VAPI, Retell AI, ElevenLabs, Twilio, WhatsApp Cloud API, GoHighLevel, HubSpot, Salesforce, Zoho CRM, Pipedrive, n8n, Make. com, Zapier, Apollo, Airtable, Notion, Slack, Gmail API, Outlook API, Calendly, Cal .com, Stripe, Shopify, WordPress, React, Next.js, Node.js, Python, FastAPI, Django, Ruby on Rails, PostgreSQL, MongoDB, Redis, AWS, Docker, and GitHub Actions. ────────────────────────── ✅ 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 → $300K+ earned delivering production systems on Upwork → 13+ years of software engineering experience → Full-stack ownership from workflow logic to backend, frontend, database, API, and deployment → Clean documentation, milestone-based delivery, and clear communication → AI-enabled builds that are practical, reliable, and built around real business operations