# Senior Platform Engineer (Onsite - SF) at Seam

- Company: Seam (YC S20)
- What the company does: API for IoT Devices. Backed by Y Combinator.
- Company website: https://seam.co
- Type: Startups
- Level: Senior
- Location: San Francisco, CA
- Work setup: On-site
- Pay: $170K to $220K base salary per year (USD)
- Posted: 2025-09-22
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/seam/jobs/gQHJoK2-senior-platform-engineer-onsite-sf
- Page: https://www.1752.vc/careers/jobs/seam-senior-platform-engineer-onsite-sf/

## About the role

We're looking for a Senior Platform Engineer to join our 3-person platform squad. You'll own the systems that make our engineering team productive and our APIs reliable. Your focus: build efficient TypeScript tooling that lets engineers ship device integrations in days instead of weeks, create fast testing infrastructure, scale our background workers, and improve observability across our platform. We're growing rapidly into enterprise and need rock-solid infrastructure without sacrificing developer velocity.

## What they're looking for

- 5+ years backend engineering with platform/infrastructure focus
- Expert TypeScript and PostgreSQL (query optimization, scaling)
- Strong distributed systems and background job processing experience
- Experience building fast, reliable CI/CD pipelines
- Infrastructure as code experience ## Preferred Qualifications
- Experience building developer tooling and frameworks

Tags: Engineering