> Markdown version of [/jobs/ext/4473054-platform-engineer-iii](https://www.wearedevelopers.com/jobs/ext/4473054-platform-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Platform Engineer III - **Company:** Cedar Inc - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $170,000 - $215,000 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Automation of Tests, Continuous Integration, Python (Programming Language), Software Engineering, Strategies of Testing, TypeScript, Large Language Models, Cypress (Programming Language), Kotlin, Pytest, Playwright, JestJS, SDET - **Published:** October 19, 2026 - **Apply:** https://www.builtincolorado.com/auth/login?destination=/job/platform-engineer-iii/11771016 ## About the Role * 4-7 years in software engineering, or as an SDET with substantial software development responsibilities * Proficiency in Python and JavaScript/TypeScript * Deep knowledge of testing strategies from unit through end-to-end, and hands-on use of frameworks such as pytest, Jest, Vitest, Cypress, or Playwright * You've implemented CI/CD pipelines, including collecting and reporting on test results * You've measured test suites through metrics such as coverage, reliability, execution time, or flakiness * Ability to work cross-functionally to improve processes, and to bring in the right people when a problem needs broader input * Strong written and verbal communication, including turning testing strategy into clear standards and documentation * Comfort working independently once a problem is defined, and genuine curiosity about how software fails Nice to Have * Service-to-service or contract testing (e.g., Pact, Testcontainers), especially during an architecture migration * You've built a test framework from scratch * Time on a platform, developer productivity, or internal tooling team, ideally within a product engineering organization * You've built AI-assisted testing tools or tested LLM-powered applications * Familiarity with Go or Kotlin, or eagerness to pick up new languages ## Description Our Platform Testing team builds the tooling, frameworks, and standards that help every Cedar engineering team test more effectively. We're hiring an engineer with deep testing expertise to make our large test suite faster and more reliable, shape how we test services as our architecture evolves, and identify where our biggest risks are. You'll write production-quality code, own well-defined problems independently, and partner with senior engineers in a broader direction. Because Cedar builds healthcare technology, better testing directly improves the experience for patients, providers, and customers. This role is remote across the United States. What you will do: * Build tooling and metrics that make test quality visible, including reliability, flakiness, and coupling * Establish code-coverage measurement and help teams close gaps in the highest-risk areas * Improve service-to-service testing as our architecture becomes more distributed * Integrate testing capabilities into CI/CD and developer workflows with Platform engineers * Make great testing easier through better frameworks, documentation, and standards * Help connect tests to product behavior and feature specifications * Own projects end to end, from investigation to adoption, and measure their impact on quality