Farhan Y.
Senior Full Stack Engineer | React, Node.js, Next.js, AI (Claude API)
I build Node.js/TypeScript backends and React frontends for SaaS products, with a focus on AI-powered features and LLM integrations. Recent AI work: - Built 5 production AI features using Claude API (tool_use): conversational agents, document review, email composer, OCR - Semantic search system with PostgreSQL pgvector + Voyage AI - Daily Claude Code and Cursor user for AI-augmented development Engineering track record (10 years): - 50K+ concurrent players, 99.9% uptime (Revolving Games) - $24K/year saved via Algolia optimization (Morressier, Berlin) - 100K+ user platform with zero-downtime rollouts - GraphQL API cutting database queries by 60% (MailMunch) - CI/CD pipelines dropping release cycles from days to hours Stack: Node.js, NestJS, React, Next.js, TypeScript, PostgreSQL, MongoDB, Redis, Prisma, AWS (Lambda, EC2, S3, SQS), GCP, Kubernetes, Docker AI/LLM: Claude API (tool_use), RAG pipelines, pgvector, prompt engineering, Claude Code, Cursor, GitHub Copilot I plan before I code, communicate daily, and don't disappear. Available 30+ hrs/week. GMT+5 with US/EU timezone overlap.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $27k
$27k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 2% in Socket.io
Ranked by MRR among everyone on Upwork with the skill.
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