Senior Software Test Engineer

ISO New England Inc., One Sullivan Road, Holyoke, Massachusetts, United States of America Job Description Posted Thursday, May 28, 2026 at 4:00 AM ISO New England is the independent system operator responsible for ensuring the safe and reliable flow of electricity in our region and planning for the future of the electric grid. We are at the forefront of New England’s ongoing transition to clean energy. Join a team supporting and enhancing mission‑critical ISO New England applications in a fast‑paced, collaborative environment. 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 Competitive compensation with a base salary + performance bonus Robust benefits package, including: Enhanced 401(k) and financial planning support Tuition reimbursement and professional development Wellness programs, including an onsite gym Employee Business Networks Free coffee at our onsite café Hybrid work environment (3 days/week onsite) Distance‑based relocation assistance available How you will make an Impact Build and maintain scalable test automation frameworks Create, run, and improve automated tests to raise release quality Review acceptance criteria and test cases with Business Analysts Partner with Developers to improve test coverage, scope, and process Implement best practices to optimize automated testing efficiency and effectiveness Stay current on testing tools and emerging technologies Mentor junior testers/consultants through coaching and knowledge sharing What you need to be successful 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 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.). The expected salary range for this position is $120,000 - $160,000 per year. This role is also eligible for an annual performance bonus, comprehensive health insurance (medical, dental and vision), flexible spending and health savings accounts, a 401(k) plan with generous employer contributions and a student debt benefit, life and AD&D insurance, disability insurance, critical illness and hospital indemnity benefits, paid time off, paid leave, a wellness program, an employee assistance program and other great company perks. #LI-HYBRID This is a U.S. based role. If the successful candidate resides outside of the U.S., relocation will be required. Equal Opportunity We are proud to be an EEO employer. Applicants for employment are considered without regard to race, color, religion, creed, sex (including pregnancy, childbirth, and related medical conditions), gender identity or expression, sexual orientation, citizenship, national origin, age, ancestry, marital status, disability (including learning, mental, intellectual, and physical), service in the uniformed services, genetic information, or any other status protected by applicable law. Drug Free Environment We maintain a drug‑free workplace and perform pre‑employment substance abuse testing. ISO New England Inc., One Sullivan Road, Holyoke, Massachusetts, United States of America #J-18808-Ljbffr