At SuprSend, I designed and built the notification write path from scratch, load-tested to 520M messages per hour per instance. I also added Postgres query-driven dynamic lists and implemented one-click unsubscribe across 10+ email vendors.
At Razor-Group, I led three data platform verticals and third-party business integrations. I also led the consolidation of master data from two e-commerce companies and overhauled supply chain technology to eliminate recurring data errors.
At ZestMoney, I led the platform engineering team and scaled message throughput to 1.2 million messages per second in a single region. I reduced CPU and memory usage by about 60% through stress testing and profiling, supporting that scale-up.
I owned 30+ services and core C# and Golang libraries at ZestMoney, and designed and maintained its web-security architecture while preserving backward compatibility with more than 240 live services. Across ZestMoney, Razor-Group, and SuprSend, I established observability and monitoring frameworks integrating logs, traces, and metrics.
