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Valley — AI Outbound Engine & Public API

Backend infrastructure powering Valley's AI-driven LinkedIn outbound engine — processing 75,000+ prospecting requests/day at sub-180ms p99 across 300+ active campaigns. Led design and delivery of Valley's public REST API (40+ endpoints) and re-architected the webhook system to handle 10,000+ concurrent events, cutting failed deliveries by 76%.

• NestJS,
• TypeScript,
• PostgreSQL,
• Redis,
• AWS