> Markdown version of [/jobs/ext/1504508-senior-software-test-engineer](https://www.wearedevelopers.com/jobs/ext/1504508-senior-software-test-engineer). 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). --- # Senior Software Test Engineer - **Company:** ISO New England - **Location:** Holyoke, MA, United States - **Experience:** Expert - **Salary:** $120,000.0 - $160,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, JIRA, Automation of Tests, Cloud Computing, Computer Programming, Continuous Delivery, Continuous Integration, Programming Tools, Junit, Python (Programming Language), Scrum Methodology, Standard Sql, Selenium, Testng, Web Applications, Scripting, Postman, Cypress (Programming Language), Git, Kubernetes, Information Technology, Playwright, Terraform, Cucumber (Software), Docker, SDET, Jenkins - **Published:** July 30, 2026 - **Apply:** https://www.careerjet.com/job/usbced53d8864a2da438eeb63b1c9961ed/eaa ## About the Role * Bachelor's degree in Computer Science, Engineering, or equivalent experience * 5+ years in software testing with hands-on test automation for web applications and APIs * Experience with Playwright, Selenium, or Cypress; BDD tools such as Cucumber a plus * Programming skills in Java plus scripting in Python or JavaScript; working knowledge of SQL * Ability to design and maintain automated tests from functional and non-functional requirements * Strong communication skills and experience working with BAs, Developers, and stakeholders * Experience integrating automated tests into CI/CD (e.g., Jenkins) and supporting continuous delivery * Mentoring or technical leadership experience for junior QA/SDET team members * Strong troubleshooting skills (root cause analysis for test failures) and attention to detail * Experience with QA/Dev tools such as Git, Jira, JUnit/TestNG, and Postman * Preferred * Docker and container orchestration (Kubernetes or ECS) * Infrastructure as Code (Terraform) * Agile delivery (Scrum or Kanban) * Cloud experience (AWS preferred) * ISTQB certification * SDET boot camp or similar certification This employer will not sponsor applicants for work visas for this position (ex: H-1B, F-1/CPT/OPT, O-1, E-3, TN, J, etc.). ## Description The Software Test Engineer (SDET) designs and delivers automated test strategies for UI and API applications. You will partner with Business Analysts and Developers to build automated tests, integrate them into CI/CD pipelines, execute results-driven test runs, and mentor junior testers/consultants. What we offer you: * A stable, mission-driven workplace where your impact truly matters * A highly engaged work environment that values inclusion, collaboration, and employee safety and wellbeing ## Related Videos - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Continuous testing - run automated tests for every change!](https://www.wearedevelopers.com/videos/190-continuous-testing-run-automated-tests-for-every-change) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)