# Shailesh Shivam > Senior software engineer building distributed systems, AI-integrated platforms, and enterprise infrastructure. ## About Shailesh Shivam is a senior software engineer with 5 years of experience shipping production infrastructure at healthtech, fintech, and enterprise SaaS companies. He specializes in distributed systems, AI/ML integration, and full-stack TypeScript/Python development. Based in India. Open to freelance and contract work (~20 hrs/week). ## Site - Homepage: https://shaileshshivam.dev - About: https://shaileshshivam.dev/about - Work / Case Studies: https://shaileshshivam.dev/work - Writing / Essays: https://shaileshshivam.dev/writing - Digital Garden / Notes: https://shaileshshivam.dev/garden - Hire: https://shaileshshivam.dev/hire - Now (current focus): https://shaileshshivam.dev/now - Uses (tools): https://shaileshshivam.dev/uses - Colophon: https://shaileshshivam.dev/colophon - RSS Feed: https://shaileshshivam.dev/feed.xml - Sitemap: https://shaileshshivam.dev/sitemap-index.xml ## Writing (long-form essays) - Building a PII Detection Engine with LLMs: https://shaileshshivam.dev/writing/building-pii-detection-engine-llms/ - Event-Driven Architecture for Wallet Monitoring: https://shaileshshivam.dev/writing/event-driven-architecture-wallet-monitoring/ - FHIR in Production vs. the Spec: https://shaileshshivam.dev/writing/fhir-production-vs-spec/ - Zero-Downtime Migration of 2M Documents: https://shaileshshivam.dev/writing/zero-downtime-migration-2m-documents/ ## Digital Garden (short notes, varying maturity) - The Right Abstraction Level (evergreen): https://shaileshshivam.dev/garden/right-abstraction-level/ - Writing Before Coding (evergreen): https://shaileshshivam.dev/garden/writing-before-coding/ - Event-Driven vs Polling (budding): https://shaileshshivam.dev/garden/event-driven-vs-polling/ - Observability Over Debugging (budding): https://shaileshshivam.dev/garden/observability-over-debugging/ - What Production Really Means (budding): https://shaileshshivam.dev/garden/what-production-really-means/ - Zero-Downtime Patterns (budding): https://shaileshshivam.dev/garden/zero-downtime-patterns/ - AI as Force Multiplier (seed): https://shaileshshivam.dev/garden/ai-as-force-multiplier/ - FHIR in Practice (seed): https://shaileshshivam.dev/garden/fhir-in-practice/ ## Work / Case Studies - Blockchain Transaction Indexing Pipeline: https://shaileshshivam.dev/work/blockchain-indexing - Real-Time Data Flow Visualization: https://shaileshshivam.dev/work/data-flow-visualization - FHIR Clinical API Platform: https://shaileshshivam.dev/work/fhir-clinical-api - Healthcare Data Migration: https://shaileshshivam.dev/work/healthcare-migration - Occupancy Planning System: https://shaileshshivam.dev/work/occupancy-planning - PII Detection Engine: https://shaileshshivam.dev/work/pii-detection-engine ## Connect - GitHub: https://github.com/shaileshshivam - LinkedIn: https://linkedin.com/in/shailesh-shivam - X: https://x.com/shaileshivam ## Technical Focus TypeScript, React, Node.js, Python, PostgreSQL, Redis, Kafka, AWS, Docker, Kubernetes, System Design, AI/ML Integration