Senior Software Development Engineer in Test (SDET)

Title: Senior Software Development Engineer in Test (SDET)Direct Hire OpportunityNo SponsorshipOnsiteWe're looking for a hands-on Senior SDET who approaches quality as a core part of engineering"”not a downstream function. This role is ideal for a backend-focused engineer who writes production-quality code, partners closely with development teams, and builds scalable frameworks that make systems more reliable, testable, and resilient by design.The right candidate thinks like a developer first, brings strong systems-thinking, and takes ownership of quality from design through production.Requirements:7-10+ years of experience in software engineering with a strong focus on testability and qualityStrong programming skills in C#, TypeScript, JavaScript, or Python (backend emphasis preferred)Hands-on experience with test-driven development (TDD) and/or behavior-driven development (BDD)Deep experience validating APIs, backend services, and system integrationsStrong understanding of data flows, system behavior, and application architectureExperience building and maintaining automated testing frameworks (API and service-level preferred)Familiarity with CI/CD pipelines and integrating automated validation into deployment workflowsExperience in modern .NET (Core/6+) environments with Angular front-end ecosystemsSolid grasp of software design principles (modularity, scalability, maintainability)Ability to troubleshoot complex systems across services, data layers, and infrastructureExperience working in Agile/Scrum environments with shared ownership of delivery and qualityPreferred:Experience with tools such as xUnit, NUnit, Playwright, REST clients, and TestRail (or similar)Exposure to containerization and DevOps tools (Docker, GitHub Actions)Cloud experience (AWS preferred)AI agents for automationResponsibilities:Design and develop scalable, testable services, APIs, and frameworks that support end-to-end system validationEmbed quality into the development lifecycle using TDD/BDD practicesBuild and maintain automated validation at the API and backend layers (UI automation used selectively)Partner with engineering teams to influence architecture and design decisions that improve testability and reliabilityIntegrate automated testing into CI/CD pipelines to enable fast, confident releasesOwn quality outcomes across the full lifecycle"”from development through production supportParticipate in code reviews, ensuring high standards for readability, maintainability, and test coverageDevelop and manage test data, environments, and supporting utilities within a DevOps mindsetInvestigate production issues, perform root cause analysis, and contribute to long-term solutionsSupport a full-stack environment (.NET + Angular) with a focus on backend systems, APIs, and data integrity

Created: 2026-05-09