Software Development Engineer in Test – SDET

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Stellenbeschreibung:

Responsibilities

Design, build, and maintain scalable automated test frameworks from scratch — not inherited or extended from existing suites
Serve as the primary subject matter expert on test automation tools, techniques, and best practices across the engineering organization
Establish architecture, folder structure, conventions, and shared patterns for the automation codebase
Maintain test suites for reliability and maintainability as the platform evolves
Integrate automated test suites into CI/CD pipelines (GitHub Actions, Azure DevOps, or equivalent) to support continuous delivery
Design pipeline triggers, handle test parallelism and flakiness, and own reporting and alerting within the pipeline
Identify gaps in current testing infrastructure and proactively propose and implement improvements
Partner with DevOps and Engineering to ensure test execution environments are reliable and representative
Partner with product managers and developers to integrate automation early in the SDLC, promoting a shift-left quality mindset
Influence team QA practices through documentation, mentorship, and standards-setting — not just personal execution
Review pull requests for testability and advocate for design choices that improve coverage and maintainability
Stay current on emerging testing tools, frameworks, and industry trends

Requirements

5+ years of professional software testing or SDET experience
Demonstrable experience building test automation frameworks from scratch — not just using or maintaining inherited ones
Hands‑on Playwright experience in a production‑grade project
Python proficiency demonstrated through professional or open‑source work
API testing ownership using Postman or equivalent — including contract testing, data‑driven tests, and CI integration
CI/CD pipeline ownership — built or significantly extended a pipeline using GitHub Actions, Azure DevOps, Jenkins, or equivalent
Experience testing .NET / C# applications in a production environment
Experience with long‑lived production platforms — not just greenfield or short‑term contract work

Core Competencies

Demonstrates expertise in designing and building scalable automated test frameworks from scratch, with a strong focus on CI/CD integration and test automation best practices. Proficient in Python and Playwright, with a solid understanding of API testing and .NET applications.