Adage Digital Ltd
CurrentSoftware Engineer — Full Stack · Node.js · Backend
Jan 2023 — Present
United Kingdom (Remote)
- Designed and owned backend API architecture in Node.js/Express.js serving 5,000+ concurrent users at sub-200ms p95 latency; profiled and resolved N+1 query issues causing latency spikes under production load.
- Built BullMQ event-driven job system processing 10,000+ async tasks/day (media processing, notifications, affiliate tracking) — cut blocking API load by ~40% and improved throughput on peak traffic.
- Architected horizontally scalable microservices with high-availability AWS media pipeline (S3 + CloudFront), consolidating redundant services to reduce infrastructure cost.
- Optimised PostgreSQL schema with composite indexing and targeted query rewrites — cut average query time by 35% on high-traffic endpoints.
- Led code reviews across a 5-engineer team, defined backend coding standards, mentored 2 junior developers; caught a critical auth token leak before it reached production.
