# Test box **Senior Backend Engineer, 8 years, targeting staff-level roles** Senior backend engineer with 8 years of experience building backend systems in Go and Postgres. Has owned production payments ledger work, including on-call responsibility and a sharded Postgres migration. Based in Lisbon and targeting staff-level backend roles. ## Experience 8 years ## Skills - Go - Postgres - Payments ledger - Backend engineering - Sharded Postgres migration - On-call ownership - Mentoring ## Highlights - 8 years of backend engineering experience with Go and Postgres. - Owned on-call for a production payments ledger. - Ran a sharded Postgres migration in production. - Mentored two senior engineers into staff scope. ## Logistics - Location: Lisbon ## How to read this box This is a candidate context box built by an AI recruiter from a source text plus follow-up answers. Raw sources and answers are listed below. Share hub: https://useicm.com/icm/icm_gM6TiMXih_VFHYf7g4QVrw # Uploaded context ## Answer: Distributed systems experience Source type: text Updated: 2026-09-12T19:35:14.226Z Status: pulled Yes, in production: I owned on-call for a payments ledger and ran a sharded Postgres migration with no downtime. ## Answer: What transaction volume or ledger scale did you own? Source type: text Updated: 2026-09-12T19:34:15.036Z Status: pulled Yes, in production: I owned on-call for a payments ledger, ran the sharded Postgres migration, and mentored two senior engineers into staff scope. ## Pasted text Source type: text Updated: 2026-09-12T19:33:13.132Z Status: pulled Test box, safe to delete. Senior backend engineer, 8 years Go and Postgres, payments ledger work, Lisbon, wants staff roles.