Marcus Bello
Profile
Backend-leaning full-stack engineer with nine years building and scaling web services. I like taking a slow, flaky system and making it boring: clear boundaries, good tests, and dashboards that tell the truth. Comfortable owning a feature from database schema to production rollout.
Experience
Senior Software Engineer
- Re-architected the billing service around an event queue, cutting failed charges by 40% and making retries auditable.
- Cut median API latency from 480ms to 120ms by profiling hot paths and adding a read-through cache.
- Mentor three engineers and run the team's design-review rotation.
Software Engineer
- Built the checkout API serving 2M orders a month across web and mobile clients.
- Introduced integration tests to a legacy codebase, taking release rollbacks from weekly to rare.
Recommendations
Skills
- TypeScript
- Go
- PostgreSQL
- Node.js
- REST & gRPC APIs
- Docker
- AWS
- CI/CD
- System Design
- Observability