Project P·03 · 2022 · Bykea

High-Scale Logistics Backend

Role — Senior Software EngineerScale — 5M+ users

Backend work at Bykea: migrated internal services from RabbitMQ to Kafka for event sourcing, built a trip-state event-logging service used downstream for fraud detection, cut Redis cache load by nearly half, and built an internal CSR support system full-stack.

FIG. 1 — Trip-state event log. Fastify + PostgreSQL, append-only; the same record feeds fraud detection downstream.

§ HighlightsWhat shipped

RabbitMQ → Kafka migration for event sourcing
Trip-state event log feeding fraud detection
~50% Redis cache-load reduction

// stack — TypeScript · Node.js · Fastify · MongoDB · PostgreSQL · Redis · RabbitMQ · Kafka · AWS