Suleman K.
Senior Full-Stack & Mobile Engineer | React, Node.js, Go & AI
Need one senior engineer who can connect your web app, backend, APIs, and mobile experience without handoff gaps between several developers? I build and improve production products across React/Next.js web apps, Go and Node.js backends, PostgreSQL data, and cross-platform mobile. I can own a focused feature, rescue an inherited codebase, or take a product from architecture through deployment—and add practical AI features where they create a clear user or business outcome. On Upwork, I’ve earned $100K+ across 56 jobs and 4,430 hours while maintaining a 100% Job Success Score and Top Rated Plus status. Relevant delivery includes: • 600+ hours building the Go backend and contributing to the Flutter app for Jumpspeak, an AI language-learning product with 1M+ users, 23 languages, and 1,000+ lessons • $30K+ and 1,029 hours building a five-star React, Node.js, and AWS platform • $15K and 500 hours delivering an auction product • $15K+ and 379 hours fixing bugs and shipping features across two legacy Laravel/Vue applications, with five-star feedback I can help you with: • Full-stack web products using React, Next.js, TypeScript, Node.js, and PostgreSQL • Cross-platform mobile products using Flutter or React Native, connected to production APIs and web/admin systems • Go or Node.js APIs, authentication, payments, third-party integrations, and data workflows • Existing-product takeover, modernization, performance work, and production debugging • Practical AI integrations such as chat, search, extraction, classification, and summarization inside a real product workflow Clients consistently describe me as committed, knowledgeable, responsive, detail-oriented, and easy to work with. Upwork's completed-job insights most often identify quality, collaboration, communication, and solution-oriented delivery. Send me your product brief, current stack, and the main bottleneck. I’ll suggest the safest first milestone and tell you honestly whether I’m the right fit.