Firstname Lastname
Backend engineer with ten years building payment and identity systems at scale. Led the migration of a monolithic billing service to event-driven infrastructure handling 40M transactions per month.
Experience
- Rebuilt the settlement pipeline as an event-driven service, cutting end-to-end reconciliation time from 6 hours to 11 minutes.
- Designed an idempotency layer that eliminated duplicate charges, reducing payment support tickets by 73%.
- Mentored four engineers; two were promoted to senior within 18 months.
- Built a multi-tenant permissions service adopted by all 12 product teams.
- Reduced p99 API latency from 840ms to 120ms by introducing read replicas and query batching.
- Wrote the on-call runbook; mean time to recovery fell from 45 to 12 minutes.
- Shipped the invoice API used by 3,000 merchants at launch.
- Moved nightly batch jobs to a queue; the daily close went from 4 hours to 40 minutes.
- Added integration tests to a codebase that had none; regressions per release halved.
Education
- Thesis on consensus in partitioned networks. Teaching assistant, two systems courses.
Skills