Umair S.
Full-Stack Web & Mobile App Developer | Backend |Frontend| JS | TS |AI
I help startups and businesses build scalable web applications, mobile apps, and AI-powered products that are reliable, maintainable, and built for growth. With 8+ years of software development experience, I have worked across the full product lifecycle and from planning and architecture to development, deployment, and long-term support. Over the last 3 years, I've been building healthcare platforms used by hospitals and health systems in the United States, delivering solutions that require high reliability, security, and performance. 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 • Full-Stack Web Development (React, Next.js, Node.js, Express) • Cross-Platform Mobile App Development (Flutter & React Native) • AI Applications, Chatbots & Agents • RAG Systems & Vector Database Integrations • SaaS Product Development • REST APIs & Third-Party Integrations • Real-Time Applications & Automation • Cloud Infrastructure & Deployment 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Frontend: React, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Node.js, Express.js, NestJS Mobile: Flutter, React Native AI: OpenAI, Claude, LangChain, AI Agents, RAG Systems Databases: MongoDB, PostgreSQL, MySQL, Firebase, Supabase Cloud: AWS (EC2, S3, Lambda), Vercel 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✓ 8+ years of professional development experience ✓ Expertise in both web and mobile development ✓ Strong focus on clean, scalable architecture ✓ End-to-end ownership from idea to production ✓ Clear communication and reliable delivery ✓ Experience building production systems used by real customers Whether you need a web application, mobile app, AI-powered product, or a complete SaaS platform, I can help turn your vision into a production-ready solution. Let's discuss your project.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.4k
Billed in all: $6,516$6.5k
$700 in the last 6 months
Across 15 contracts
Earnings, last 30 days
Skill rankings: Top 19% in Angular
Ranked by MRR among everyone on Upwork with the skill.
- #14Fastify70 freelancers · 🇵🇰 #3Top 20%🇵🇰#3 of 12
- #20Streaming Platform67 freelancers · 🇵🇰 #4Top 30%🇵🇰#4 of 9
- #56AWS Cloud9249 freelancers · 🇵🇰 #13Top 22%🇵🇰#13 of 63
- #69Agent GPT196 freelancers · 🇵🇰 #24Top 35%🇵🇰#24 of 61
- #351Chatbot1,273 freelancers · 🇵🇰 #128Top 28%🇵🇰#128 of 394
- #527AI Bot1,765 freelancers · 🇵🇰 #153Top 30%🇵🇰#153 of 494
- #563ASP.NET2,819 freelancers · 🇵🇰 #81Top 20%🇵🇰#81 of 450
- #892NestJS3,757 freelancers · 🇵🇰 #229Top 24%🇵🇰#229 of 897