Yangon, Myanmar
Hein Htet
San.
AI / Backend Engineer
Building web apps with AI, LLMs, and modern TypeScript stacks.
Ibuildfull-stackwebappsandexploreAI—currentlyfocusedonLLMsandRAG,shippingrealprojects.
Latest
Experience.
Backend Developer
Linn Myanmar Healthcare
Architected and deployed a highly scalable, event-driven healthcare e-commerce platform using a NestJS microservices architecture. Engineered mission-critical modules—including Inventory Management, Delivery Tracking, and a high-performance Point of Sale (POS) system—using Postgres 17, Prisma ORM, and synchronous gRPC transport. Implemented the Transactional Outbox pattern with Kafka (Redpanda) to guarantee eventual consistency across distributed boundary contexts and checkout sagas. Standardized enterprise observability by integrating OpenTelemetry, Prometheus, Loki, and Grafana for comprehensive distributed trace and log correlation.
Freelance Developer
Self-Employed
Delivered production-grade web and backend solutions for multiple clients: NexLynk LMS, HereYouths Office Management, LINN Myanmar e-commerce, Reset Space mental health platform, and comprehensive Data Entry ERP / Widya Therapeutic platforms. Led technical architecture, backend API optimizations, database schema design, and real-time WebSocket integrations (Pusher/Laravel Reverb). Engineered robust frontends utilizing Next.js 15, Vue.js 3, and Zustand, built advanced administrative/vendor dashboards with Filament v3 and Laravel, and hardened infrastructure via multi-stage Docker builds and Cloudflare edge deployments.
Junior Developer
MYDAY THU KHYWAL Co. Ltd
Designed and deployed a highly concurrent social-commerce recommendation engine and optimized search infrastructure using FastAPI, Neo4j, and Elasticsearch. Architected complex Cypher graph queries to model multi-hop user interactions, significantly improving the relevance of content and friend suggestions. Integrated a robust background processing pipeline with Celery, Redis, and Gunicorn to handle asynchronous recommendation pre-computation and session caching under high traffic.