Ganesh V.

Java Full Stack Architect | Healthcare, SaaS, Mobile | HL7 FHIR

Java Backend and Full Stack Architect. 16,000+ verified hours on Upwork building backend systems, HL7 and FHIR healthcare integrations, SaaS platforms, and mobile apps with Java, Spring, Angular, and AWS. I have spent 10+ years designing and building production backends. My largest Upwork contracts run into the thousands of hours each: a 5,130-hour microservices and AWS backend, a 2,012-hour SaaS analytics platform, and active enterprise integration work. I go deep and I stay for the long haul. I do not just ship features. I design systems that do not break. WHAT I DO BEST Backend and architecture, my strongest area - Java, Spring Boot, Spring Security, JPA, Hibernate - Microservices and event driven systems - API design and third party integrations - Postgres, reliability and performance work - AWS architecture, Docker, CI/CD Full stack - Angular, React, Next.js, Node.js - Frontend architecture that stays clean as the app grows WHERE I HAVE DEPTH Healthcare systems and integration - HL7 v2 and FHIR R4 integrations, Mirth Connect interface engines - Health data platforms (openmhealth) - EHR and EMR data exchange, PHI handling and audit trails - Patient scheduling, remote monitoring, care management SaaS platforms - 2,012 hours on a SaaS analytics platform, plus dashboarding and reporting systems - Multi-tenant backends, subscription and access control - MVP to production builds AI, built into the systems above - OpenAI and LangChain integrations, RAG pipelines, semantic search - Document intelligence and text extraction for clinical and business data - AI Voice Agent PROOF - 16,321 hours logged on Upwork, all verified by the platform - 47 completed contracts, 100% Job Success, Top Rated Plus - $900K+ earned here - My longest single contract ran 5,130 hours. Clients keep me for years. HOW I WORK - I think in architecture first, then code - I build for the next two years, not the next two weeks - I write clearly. You will never have to guess what I meant - I own the work from planning through deployment - I flag problems early, even when the news is bad GOOD FIT IF - You need an engineer who makes architecture decisions, not just takes tickets - Your backend has to be stable, secure, and scalable - You are integrating healthcare data or building a SaaS product - You are planning for the long term NOT A FIT IF - You are shopping for the lowest rate - You want a patch, not a fix - Clean, maintainable code is not a priority for you Send me a message with your project details. I will tell you how I would approach it, and I will be honest if I am not the right person for it. Ganesh