SiftStack
Software Engineer, Test Infrastructure (AI DevEx)
$180K–$230K
Marina Del Rey, CA +1 · Hybrid · Full-time · Posted Oct 29, 2026
- Location
- Marina Del Rey, CA
San Francisco, CA - Experience
- 6+ years of professional software engineering experience.
- Visa sponsorship
- U.S. Person required: U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee, in compliance with ITAR / EAR regulations.
About the job
Builds and owns developer infrastructure and testing environments that help engineers and AI coding agents test, debug, and validate software changes.
What you'll do
- Build on-demand, isolated, production-like testing environments and realistic data simulation tools.
- Develop and optimize CI/CD pipelines, build systems, and deployment automation for diverse testing workloads.
- Enable AI coding agents to use testing environments, run tests, and autonomously validate code changes.
What they ask for
- 6+ years of professional software engineering experience, with significant experience in developer infrastructure, test infrastructure, platform engineering, or developer tooling.
- Hands-on experience with Docker, Kubernetes, build systems, and deploying applications to cloud platforms such as AWS, GCP, or Azure.
- Experience building or automating developer infrastructure, deployment systems, or testing environments, and optimizing CI/CD pipelines and infrastructure provisioning.
- Strong software engineering and programming skills; Go or Python preferred.
Nice to have
- Experience with ephemeral or on-demand development and testing environments, load or performance testing, or distributed test execution.
- Experience with Playwright or Cypress, sandboxed environments, AI coding agent infrastructure, or developer infrastructure at a fast-scaling company, cloud platform, or compute provider.
Pay
USD $180,000 - $230,000 per year (base salary)
Tools
Docker, Kubernetes, AWS, GCP, Azure, Go, Python, GitHub Actions
AI focus
Build infrastructure that enables AI coding agents to interact with testing environments, execute tests, and autonomously validate code changes.
Model-written summary · the original posting is authoritative