Usama T.

Senior Full-Stack Developer with 6+ years of experience building compliance-grade, multi-tenant web platforms across Healthcare, FinTech, and SaaS. I'm the engineer clients bring in when the requirements are complex, the data model needs to support multiple roles and workflows, and the audit trail has to hold up to scrutiny. Recent work: ✅ A dynamic clinical session platform for field clinicians (NestJS, NextJS, PostgreSQL, Prisma) with a configurable form/template builder, IndexedDB-backed offline capture, single-editor session ownership for clean offline sync, dual-layer audit logging (app + DB triggers), and a therapist → rater → site-coordinator amendment flow with CPT/HCPCS billing codes. ✅ A multi-tenant B2B supply-chain finance platform (NodeJS, TypeScript, Prisma, PostgreSQL) supporting conventional and Islamic finance flows for Borrowers, Verifiers, and Funders — 60+ data models, 60+ documented REST endpoints, JWT + 2FA, RBAC, and full audit logging. ✅ An AI-powered medical referral processing pipeline (FastAPI, LangGraph, Google Gemini LLM + Vision) for an EMS organization — ingests emails and PDFs, classifies and extracts structured data, with a human-in-the-loop review layer. What I bring: 🔹 Backend: NestJS, NodeJS, ExpressJS, FastAPI, Ruby on Rails, TypeScript 🔹 Frontend: NextJS, React, Redux, TypeScript, Tailwind CSS 🔹 Databases: PostgreSQL, MongoDB, Prisma, Redis, IndexedDB 🔹 AI: LangGraph, Google Gemini, Anthropic Claude, OpenAI API, RAG, Document Processing 🔹 Real-time & Integrations: SocketIO, RabbitMQ, Stripe, Paysafe, Twilio, WhatsApp Business API, AWS S3 🔹 Cloud & DevOps: AWS (EC2, RDS, S3, Lambda), Docker, Jenkins, CI/CD How I work: I design conflicts out of the system at the workflow layer instead of patching them at the data-merge layer. I treat audit trails as first-class architecture, not an afterthought. And when something's a roadmap item rather than shipped, I'll say so. Hands-on across the full lifecycle — requirements, solutioning, implementation, code review, and production rollout — with real experience leading delivery and mentoring junior engineers. Message me with what you're building and I'll get back to you within a few hours.