# Backend Infrastructure Engineer

**Company:** [Sesame](https://hotfix.jobs/companies/sesame)
**Location:** San Francisco, CA, Bellevue, WA, New York, NY
**Role:** DevOps / SRE
**Salary:** $175k – $280k/yr
**Experience:** 5+ years
**Skills:** Python, TypeScript, CI/CD, Bazel, Pants, Docker, GitOps, GCP, Kubernetes, Monorepo
**Posted:** 2025-12-30

> Builds developer infrastructure tools including CI/CD pipelines, build systems, and self-serve frameworks to enable fast, reliable engineering workflows. Requires 5+ years experience with Python/TypeScript, automation focus, and dev tooling expertise.

## Job Description

## Responsibilities
- Own the developer experience from onboarding through deploy — dev environments, build systems, CI/CD, test infrastructure, and deploy tooling
- Build frameworks and tooling that make CI fast, reliable, and effortless. Engineers shouldn't have to think about it — it should just work
- Design self-serve tooling that lets product and ML engineers move quickly without filing tickets or waiting on you
- Give teams clear, reliable visibility into what's in production, when it shipped, and how it's performing
- Explore what it means to bring AI-assisted intelligence into developer tooling — this is a genuinely exciting frontier, and we're approaching it thoughtfully
- Keep the complex systems that support rapid development healthy: build systems, dependency management, test infrastructure, and developer environments all need ongoing care
- Think creatively about what a performance-sensitive stack — GPUs, co-located servers, real-time requirements — means for the developer environment. There's no established playbook here, and that's part of the appeal

## Required Qualifications
- You're a thoughtful software engineer who also loves infrastructure. You write clean, well-designed code and care about the experience of the people using what you build
- You've worked on CI/CD systems and have real experience solving the hard problems — slow builds, flaky tests, painful merges — with durable solutions
- You've built developer tooling that other engineers genuinely wanted to use: self-serve frameworks, CLI tools, build systems, environment setup, or debugging tools
- You're comfortable in **Python** and/or **TypeScript** — our monorepo leans on both
- You have 5+ years in software engineering, with meaningful time spent on developer infrastructure or tooling
- Automation is your default. Doing something manually twice feels like a problem worth solving
- You think from the perspective of the engineers using your work. Developer experience isn't a buzzword to you — it's the whole job

## Preferred Qualifications
- Monorepo tooling and build systems (e.g. **Bazel**, **Pants**, **Moonrepo**, **Nx**, or similar approaches)
- Cloud-based development environments (e.g. **Coder**, **Codespaces**, **devcontainers**)
- CI platform depth — going beyond workflow files into managing runners, optimising costs, and building custom tooling
- Containerised builds and local/CI parity (e.g. **Docker**, **Dagger**)
- Deploy pipeline patterns: canary deployments, feature flags, automated rollbacks, **GitOps**
- AI coding tools — not just using them, but configuring, customising, or building tooling around them
- Security engineering in developer workflows: dependency scanning, secrets management, supply chain controls
- **GCP** experience

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**Apply:** https://hotfix.jobs/jobs/f6adf520-ad03-4367-ae4e-b707dea22522
**Canonical:** https://hotfix.jobs/jobs/f6adf520-ad03-4367-ae4e-b707dea22522