Software Development Engineer in Test (SDET)

Software Development Engineer In Test (Sdet)

We're looking for a software development engineer in test (SDET) who is a software engineer first and a quality advocate always. This isn't a manual QA role. You'll write production-grade code, but your primary focus will be test automation, CI/CD pipeline development, and building the tooling and infrastructure for our platform. You'll own the test automation strategy, build and maintain end-to-end browser tests, develop CI/CD pipelines, and create the tooling that makes the entire engineering team more productive. When there's no immediate automation work, you'll contribute directly to feature development across the platform.

Key roles and responsibilities include:

• Design, build, and maintain automated test suites across unit, integration, and end-to-end layers using Playwright and xUnit/NUnit.
• Own and evolve CI/CD pipelines in Azure DevOps, ensuring automated builds, tests, and deployments run reliably across multi-tenant environments.
• Build API-level test automation for .NET backend services and Azure Functions.
• Implement automated quality gates that prevent regressions from reaching production.
• Define and implement a test strategy appropriate for a growing multi-tenant SaaS platform serving auction houses.
• Leverage AI-assisted development tools such as Claude Code, Cursor, and GitHub Copilot to accelerate test creation and code generation.
• Build internal tooling, developer productivity scripts, and reusable test utilities that the broader engineering team can leverage.
• Collaborate with developers on testability of new features, providing guidance on test design and coverage.
• Build pipeline observability including dashboards, alerts, and reporting on build health, test pass rates, and deployment frequency.

Required education, experience, and qualifications:

• High school diploma or equivalent is required.
• 3+ years of software engineering experience with a focus on test automation and quality engineering.
• Hands-on experience with Playwright or similar browser automation frameworks (Cypress, Selenium).
• Experience building and maintaining CI/CD pipelines using Azure DevOps, GitHub Actions, or similar platforms.
• Proficiency in at least one of our core languages: C# /.NET or TypeScript / JavaScript.
• Experience with automated testing at multiple levels (unit, integration, end-to-end).
• Familiarity with Azure cloud infrastructure including App Services, Azure Functions, and Blob Storage.
• Solid understanding of SQL Server and relational database testing strategies.
• Experience working with Git, pull request workflows, and branch strategies.
• Experience with AI-assisted development tools (Claude Code, GitHub Copilot, Cursor, or similar).
• Background in multi-tenant SaaS environments.
• Experience with performance and load testing tools.
• Familiarity with real-time systems (WebSockets, SignalR) and event-driven architectures.