Hafiz Muhammad Bilal S.

Senior full stack developer (React, Node.js, AWS) with 6+ years, $100K+ and 2,900+ hours on Upwork at 100% Job Success. I build and run production SaaS, including a hospital platform used by 20+ healthcare clients. I'm Bilal. I build secure SaaS for healthcare, education and growing businesses, from the first MVP to a platform that staff, patients and students rely on every day. Since 2022, most of my work has been healthcare software that handles sensitive patient data. What I build for you: • Telehealth and patient communication: video visits, chat-based patient desks, secure messaging • Clinic and hospital workflows: referrals, admissions, medications, care plans, reporting • Learning platforms: LMS for schools and academies, live online classes, assessments and tutor tools (I've led a live O-Level tutoring platform since 2021) • Patient portals, plus web, iOS and Android apps • The AWS setup behind it: secure, backed up, monitored, and in your own account Proof from real projects: • Hospital operations SaaS: I joined as lead developer in 2022, when the platform served a single client. It now serves 20+ clients, each with multiple facilities and its own isolated environment and database, with role-based dashboards, patient forms, reporting and Xero invoicing. A team of three engineers extends it under my lead. • Chat-based telehealth desk: patient chats become clinical tickets for nurses and doctors, with consent capture and a full audit trail. In production since 2025. • Dermatology imaging app: lesion mapping on a 3D body model, clinical photos, SOAP notes and PDF reports, on web, iOS and Android. • Live online tutoring platform for O-Level students: lead developer from day one in 2021. Still live and still growing four years later. • Auxzee AI workspace: a multi-tenant AI platform where teams chat with their own documents. Built from 2023 and now used by enterprise companies. How I protect patient data: • Role-based access with facility- and company-level data scoping • Private S3 storage with short-lived signed URLs • Databases and servers locked to whitelisted IPs • Automated backups and snapshots • Audit history and informed-consent capture • Encryption in transit, hashed passwords, rate limiting and secure headers I'm familiar with HIPAA technical safeguards, and I'm comfortable working within your BAA and compliance process. How I work: • You talk to me directly, from planning to launch. • I can usually start the same day, and I reply within a few hours. • Every project includes 30 days of free bug fixing after delivery. • After launch, I offer a monthly maintenance plan so your app stays secure, updated and running smoothly. What a client said: "Quickly built our application from scratch. Takes ownership and responsibility for his work. Great talent!" I also build SaaS outside healthcare and education (multi-tenant platforms, marketplaces, AI agents and MCP integrations). If your product needs the same level of care, I'm happy to talk. Stack: React, Next.js, Angular, React Native, Node.js, NestJS, PostgreSQL, MongoDB, AWS, Docker, Terraform, OpenAI, Stripe, Twilio. Send me your idea, prototype or current app. I'll reply within 24 hours with the main risks and a clear plan to get it production-ready.