
Kamran Ullah
SQL Expert, UML, System Design and Python, PHP, Node, Java
Kompetenzen

Meine Dienstleistungen


Arbeitserfahrung
Backend Development
TGI Intelligent Solutions • Vollzeit
Jul 2023 - Apr 2026 • 2 yrs 9 mos
1. Architected and delivered production microservices backend systems for healthcare SaaS and AI platforms full ownership from system design through deployment, serving real users on web and mobile. 2. Designed and built RESTful and GraphQL APIs with strict validation, structured error handling, JWT/RBAC authentication, and OpenAPI documentation consumed by frontend and mobile teams. 3. Managed multi-database data layers PostgreSQL, MySQL, MongoDB, Redis schema design, TypeORM migrations, query optimisation, and caching strategies for high-frequency data access. 4. Integrated OpenAI API into production applications GPT-4 function calling, embeddings, and RAG pipelines for AI-powered clinical data extraction and intelligent automation. 5. Integrated third-party services at production scale Twilio (SMS/voice/WhatsApp), Google APIs, NodeMailer, and healthcare data systems (NextGen, CRISP). 6. Deployed containerised systems on GCP and AWS Docker, Kubernetes, Nginx reverse proxy, SSL, and GitHub Actions CI/CD with rolling updates and health checks. 7. Implemented structured logging and distributed tracing full production observability, root-cause analysis, near-zero MTTR on incidents. 8. Conducted code reviews and mentored junior developers clean, modular, well-documented TypeScript codebases across all production services.