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Piper Companies • Merrimack, New Hampshire, United States
Role & seniority: Senior Software Engineer in Test (SDET)
Stack / tools: Java and/or Python; automated testing for REST APIs, backend services, and UI; SQL/PostgreSQL; Jenkins; GitHub; Docker; CI/CD; Agile environment
Design, implement, and maintain automated test frameworks and suites for APIs, services, UI, and data validation; integrate automation into Jenkins-based CI/CD pipelines
Collaborate with developers to improve testability, drive shift-left testing, and contribute to code reviews; ensure high-quality automation across teams
Create comprehensive test plans, strategies, acceptance criteria, and documentation; troubleshoot defects and perform root-cause analysis with remediation guidance
6–10 years of SDET/automation engineering experience
Strong programming in Java and/or Python; automated testing for REST APIs, services, and UI
Hands-on with Jenkins, GitHub, Docker, CI/CD; SQL/PostgreSQL proficiency
Bachelor’s degree in Computer Science or related field; excellent communication and problem-solving
Experience with shift-left testing and code reviews
Data validation and performance testing experience
Experience supporting large-scale modernization programs
Location & work type: Smithfield, RI or Merrimack, NH; hybrid role; onsite 2–3 days per week
Piper Companies is seeking a Senior Software Engineer in Test (SDET) to support a major technology modernization program for a large enterprise based in Smithfield, RI or Merrimack, NH. In this role, you will build and enhance automated testing frameworks, embed quality practices into CI/CD pipelines, and work closely with engineering teams to deliver stable, scalable, and high‑quality software solutions. This hybrid role requires the candidate to sit onsite 2–3 days per week at either location of Smithfield, RI or Merrimack, NH.
Design, implement, and maintain automated test frameworks and suites for REST APIs, backend services, UI applications, and data validation using SQL/PostgreSQL, while integrating automation into Jenkins‑based CI/CD pipelines. Collaborate closely with developers to enhance testability, drive shift‑left testing practices, and contribute to code reviews to ensure high‑quality automation across Agile teams. Create comprehensive test plans, strategies, acceptance criteria, and documentation to validate functionality, performance, and quality standards. Troubleshoot defects, perform root‑cause analysis, and provide clear remediation guidance to support reliable and scalable software delivery.
6–10 years of SDET or automation engineering experience with strong programming skills in Java and/or Python, along with proficiency in automated testing for REST APIs, services, and UI frameworks. Hands‑on experience with Jenkins, GitHub, Docker, CI/CD pipelines, and strong SQL/PostgreSQL skills, with proven success working in Agile environments. Excellent communication and problem‑solving abilities supported by a Bachelor’s degree in Computer Science or a related field.
Compensation based on experience Full comprehensive benefits package including medical, dental, vision, 401(k), PTO, and sick leave as required by law
This job opens for applications on 1/20/2026. Applications will be accepted for at least 30 days from the posting date.
Keywords: Senior Software Engineer in Test, SDET, automated test frameworks, test automation, REST API testing, backend service testing, UI test automation, Java, Python, Jenkins, GitHub, CI/CD pipelines, Docker, SQL, PostgreSQL, data validation, Agile environments, shift‑left testing, test strategies, test plans, acceptance criteria, test documentation, quality standards, defect troubleshooting, root‑cause analysis, collaboration with developers, code reviews, large‑scale modernization, enterprise technology, Smithfield RI, Merrimack NH, hybrid