Senior Full-Stack/Backend Engineer specializing in APIs, distributed systems, and AI integrations
Freelance Full Stack / Backend Engineer9 years experienceSeniorTechnologyWeb DevelopmentSaaS
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About
AI/backend engineer who has built and scaled production LLM-powered SaaS features (document assistant + compliance review agent) on a Node.js/TypeScript + Postgres/Redis stack deployed to GCP Kubernetes. Demonstrates strong production reliability chops—async queueing, autoscaling, observability, and database tuning—with quantified wins (p95 latency -60%, query 4s to <200ms) and robust AI guardrails (strict RAG, schema validation, citations, HITL).
Experience
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Education
University Malaysia Pahangmaster, Computing (Research) (2026)
Government College University Faisalabadbachelor, Computer Science (2017)
Key Strengths
Built and operated AI-enabled backend on GCP/Kubernetes serving ~20k+ monthly users
Diagnosed and reduced p95 latency ~60% via async queueing, indexing, caching, and autoscaling
Designed scalable async processing with BullMQ, retries/backoff, dead-letter handling, and queue-lag alerting
End-to-end ownership of LLM application features (RAG, prompt orchestration, vector storage, monitoring, evals)