Deepraj B.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I design software systems that hold up under real production load. My work is implementation-ready: architecture you can build from, infrastructure in code (Terraform on AWS/GCP/Azure), clear API contracts (OpenAPI/Swagger), and milestones delivered in your repository, not slide-only advice. I am a graduate of IIT Madras. I specialize in production-grade platforms for data, machine learning, and distributed systems, and in extending live products (brownfield APIs, integrations, and stabilization). Three focus areas: System architecture — solution design, schematics, and handoff artifacts; Node.js, Python, PostgreSQL, Docker/Kubernetes; React and React Native / Expo; Flutter (mobile and web/PWA); REST and webhook integrations. Performance validation — k6 load testing and realistic failure/recovery checks before go-live. Observability and control — monitoring, staged rollouts, event replay, and operational reporting. I also build integration-heavy backends: payment and accounting APIs (Stripe, QuickBooks), CRM/webhook adapters, RAG/LLM pipelines, and voice/workflow hooks (Twilio and similar), with automated tests and demo evidence. Technologies: Python, Node.js, TypeScript, distributed systems, machine learning systems, cloud infrastructure, Terraform, Kubernetes, PostgreSQL, React, React Native, Flutter, OpenAPI, k6, Docker.