Technical
Lead with stack, systems built, integrations, reliability, and project outcomes.
Luis Herrera
Remote | luis.herrera@example.com | (917) 555-0163 | github.com/luis-herrera-example
Summary
Backend engineer with seven years building payment and logistics systems in Python and Go on AWS. Owns services that handle 40,000 requests a minute at peak and has kept them above 99.95 percent availability for three years. Comfortable leading integrations with outside partners and writing the runbooks other engineers actually use.
Stack
Languages: Python, Go, TypeScript, SQL.
Platforms: AWS Lambda, ECS, RDS Postgres, SQS, Redis, Terraform, Docker, GitHub Actions.
Practices: REST and GraphQL APIs, event driven design, observability with Grafana and OpenTelemetry, on call rotation.
Systems Built
- Designed a payment orchestration service in Go that routes 2,000,000 dollars a day across three processors with automatic failover
- Built an event pipeline on SQS and Lambda that replaced a nightly batch and cut order status delay from six hours to 30 seconds
- Led the Stripe and Shopify integrations for a merchant onboarding flow used by 1,800 stores
Reliability
- Reduced p99 latency on the order API from 900 milliseconds to 180 through query tuning and a Redis read cache
- Cut monthly incident count from eleven to two after introducing structured alerts and a blameless postmortem template
- Wrote the on call runbook that halved mean time to recovery for the logistics team
Experience
Parcelworks | Senior Backend Engineer | May 2022 to present
- Own the payments and order services for a logistics platform serving 1,800 merchants in the NYC metro area
- Mentor three engineers and review roughly 40 pull requests a month
- Drove the Terraform migration that brought infrastructure changes under code review
Harbor Commerce | Backend Engineer | July 2019 to April 2022
- Built the inventory sync service in Python that reconciled 500,000 SKUs nightly across warehouses
- Shipped the GraphQL gateway that let the mobile team cut API round trips by 60 percent
Bluepoint Labs | Software Engineer | June 2017 to June 2019
- Delivered internal tools in Django and React for a 200 person operations team
Education
City College | Bachelor of Engineering, Computer Engineering | 2017.