Usman S.

Senior full-stack developer looking for a long-term role with a product team or growing business. I build and maintain web applications with Next.js, React, TypeScript and Node.js, from the first feature to production, and I stay to keep improving them. 15+ years of software development for clients in the USA, Europe, UK, UAE and Australia. Before focusing on the modern JavaScript stack, I spent years building business systems (CRMs, client portals, integrations and automations), so I understand the business side of what I build, not just the code. WHAT I BRING TO A TEAM • Production apps with Next.js (App Router, Server Components, Server Actions) and React • TypeScript across the stack, with typed APIs and validation (Zod) • Node.js back ends and REST APIs, PostgreSQL and MySQL, Prisma • Authentication, roles and permissions, payments (Stripe) and multi-tenant dashboards • Third-party integrations: CRMs, payment gateways, property portals, email, SMS and webhooks • AI features with the OpenAI and Claude APIs: chat, document processing and workflow automation • Performance and SEO: 95+ Google PageSpeed scores on desktop and mobile • Deployment and DevOps: Docker, AWS, Vercel, Ubuntu servers, CI/CD with GitHub Actions RECENT WORK • Education platform: Next.js and Node.js system with student and teacher portals, LMS and admissions, which saved the team 40+ hours a week by automating admissions and fee verification. • Partner API: secure REST API (API keys, idempotent retries, audit logging) that lets a PropTech company push documents and data into a client's system. • Real estate data feeds: listing feed generation and integration with property portals, including fixing reliability and timeout issues in production. • Lead automation: an n8n-driven pipeline that replies to new leads in under 2 minutes. HOW I WORK • Daily or regular async updates, clear estimates, and I flag problems early • Clean, documented, maintainable code with pull requests and reviews • Comfortable owning features end to end or working inside an existing codebase and team • 4–5 hours of daily overlap with UK and US time zones (I'm based in Pakistan, UTC+5) Available for long-term contracts, part-time or full-time (30–40 hrs/week), and open to contract-to-hire. If you're looking for a reliable developer to join your team for the long run, send me a message about your product and stack.