# Senior Backend Engineer résumé example

Eight years of distributed systems work, told through what each system did for the business rather than what it was built with.

![Senior Backend Engineer résumé example — senior, written for United States, set in the Plainsong design](https://cvaurum.com/img/examples/senior-backend-engineer.webp)

- Field: Software
- Career stage: Senior
- Written for: United States
- Design: Plainsong (https://cvaurum.com/templates/plainsong)
- Open it: https://cvaurum.com/examples/senior-backend-engineer

Every name, employer, address, phone number and figure below is invented.

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## Marcus Whitfield — Senior Backend Engineer

Backend engineer with eight years on payment and messaging systems that cannot go down. Took a checkout service from 1.2% failed transactions to 0.08%, and now leads the three-person group that owns it.

### Experience

**Senior Backend Engineer**, Northbank Payments · March 2022 – present

Payments platform group of nine. Owns authorization, settlement and the merchant ledger.

- Rebuilt the authorization path around an idempotency ledger, taking failed transactions from 1.2% to 0.08% and ending a class of duplicate-charge refunds worth about $340k a year.
- Cut p99 settlement latency from 2.4s to 310ms by replacing nightly batch reconciliation with an event-sourced ledger in Go.
- Led the migration of 40 services to a shared gRPC contract, retiring 11k lines of per-service HTTP glue.
- Wrote the on-call runbook the team still uses; paging volume fell by half in the quarter after it landed.

**Backend Engineer**, Cedarline Systems · June 2019 – February 2022

- Designed the message bus behind a fleet-tracking product serving 18,000 vehicles, sustaining 90k events a minute on three nodes.
- Moved the deploy pipeline from hand-run scripts to GitOps, taking a release from 40 minutes of supervision to four.
- Found and fixed a connection-pool leak that had caused six months of Monday-morning outages.

**Software Engineer**, Aperture Retail · August 2017 – May 2019

- Built the inventory sync between five warehouses and the storefront, cutting oversold orders by 71%.
- Added the integration test suite the team had gone two years without; it caught 23 regressions in its first quarter.

### Education

- B.S. Computer Science · University of Colorado Boulder · August 2013 – May 2017

### Skills

- **Languages**: Go, Python, TypeScript, SQL, Rust
- **Systems**: Kubernetes, gRPC, Kafka, PostgreSQL, Redis, Terraform
- **Practice**: Event sourcing, Distributed tracing, Load testing, Incident review