Senior Backend Engineer
Part of the Payments platform team (12 engineers). Owner of the refund service domain.
- Migrated the refund service from monolith to event-driven microservice (Kafka) â reduced refund turnaround from 4 hours to 90 seconds for 18M transactions/month.
- Wrote PR templates and code-review guidelines that were adopted team-wide.
- Mentored 2 junior engineers; both promoted to mid-level after 12 months.