LangChain
Developer Productivity
$165K–$250K
San Francisco, CA +1 · On-site · Full-time · Posted Sep 10, 2026
- Location
- San Francisco, CA
New York, NY - Experience
- 3+ years as a software engineer or infrastructure engineer.
About the job
Own developer productivity and end-to-end quality practices for LangGraph Cloud/Platform and LangSmith, enabling teams to test, deploy, and operate services with confidence.
What you'll do
- Develop test strategy and build test environments and suites across APIs, services, UI, data, and infrastructure.
- Improve CI/CD reliability and speed, and build test observability, performance baselines, and regression detection.
- Partner on incident response and document test plans, playbooks, and contributor guidelines.
What they ask for
- 3+ years of experience as a software engineer or infrastructure engineer.
- Hands-on experience with Python and testing frameworks such as pytest.
- Experience with CI/CD systems and improving pipeline performance and reliability.
- Understanding of API testing, mocking/stubbing, data setup/teardown, and defining quality standards.
Nice to have
- Experience with load and performance testing tools such as k6.
- Familiarity with observability tooling such as Datadog or OpenTelemetry; Kubernetes/containerized services; infrastructure tools; SQL; or Go, Node, or React.
Pay
$165,000- $250,000 USD annual salary range; base salary status not specified
Tools
Python, pytest, GitHub Actions, Kubernetes, Terraform, Helm, Playwright, k6
AI focus
Establish quality practices for LLM applications, including prompt regression testing and evaluation suites.
Model-written summary · the original posting is authoritative