Subodhkumar S.

I build AI web apps and backend APIs that ship fast and keep working in production. Founders and product teams bring me in for MVPs, feature builds, and upgrades in B2B SaaS, CRM, and HealthTech. I’ve spent 10+ years delivering production software. On the front end, I ship accessible, responsive UIs with React and TypeScript. On the backend, I design Python services with clean REST contracts so teams can add features without breakage. I focus on performance, smart caching, and solid data models so the app stays quick under load. I add practical AI where it matters. LLM features, RAG chat, and workflow automation using LangChain with vector databases for grounded responses. I set up evaluation loops. I keep prompt versions. I add safety checks so outputs stay consistent and traceable. Infra is ready for real traffic. AWS for hosting. Docker for images, Kubernetes for orchestration. CI/CD for repeatable releases without drama. PostgreSQL for transactions. MongoDB for flexible documents. Metrics and logs wired early so issues surface before users feel them. What I can help with: - SaaS MVPs, internal tools. From spec to first users. - LLM features, RAG chat. Document Q&A. - REST APIs with auth and rate limits. Background jobs. - React with TypeScript UIs. Accessible and fast. - AWS setup, Docker images. Kubernetes and CI/CD. How I work: - Short discovery call, then a one page scope. - Prototype or API spec in 48 to 72 hours. - Milestones with weekly demos. Jira board shared. - Clean Git history. Reviews and tests where it pays off. - Handover docs and a short video at finish. I’m Subodhkumar Singh, senior full-stack AI engineer. I’m available 20 to 30 hours per week, IST with flexible overlap for US and EU. I can start within a week. I often deliver a clickable prototype in 7 to 10 days.