Software Development Engineer in Test (SDET)

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Job Description:

We are seeking a highly skilled and motivated Software Development Engineer in Test (SDET) to join our Database Management Systems team in the Mainframe Software Division. The SDET will be responsible for designing, developing, and executing comprehensive test plans and strategies to ensure the quality and reliability of our software products. This role requires a strong understanding of software testing methodologies, a proven ability to work in Agile and DevOps environments, and a commitment to continuous improvement in software quality. The ideal candidate will possess over 5 years of experience in mainframe software quality assurance, with a track record of successfully implementing automated testing solutions and contributing to high-quality software releases.

Key Responsibilities:

• Quality Assurance & Automated Testing:
• Actively participate in Agile team activities, providing expert guidance on testing requirements, effort estimation, and risk assessment.
• Design and develop programs, utilities, scripts, and pipelines to support various testing streams including Integration, System, Performance, Security, and Compatibility.
• Implement and report on automated test coverage strategies, providing insightful analysis of coverage metrics.
• Update and maintain automated regression tests, ensuring their effectiveness in identifying newly introduced defects.
• Analyze automated test results, including the review and resolution of false positives and the refactoring of fragile tests.
• Execute targeted manual and exploratory testing for critical functionalities and high-risk areas.
• Proactively identify, assess, and mitigate potential security vulnerabilities within the testing process, tools, and application under test.
• Prepare complex test data and ensure test case execution aligns with comprehensive testing matrices.

• Leadership & Strategic Planning:
• Contribute to the definition and documentation of comprehensive test frameworks, including the selection of technology stacks and test automation tools.
• Support the design and implementation of Continuous Testing pipelines within Agile and DevOps environments.
• Assist in establishing performance testing baselines and defining benchmarking strategies.
• Provide guidance on industry-standard testing processes (e.g., BDD, TDD) and contribute to the development of automated and manual testing strategies.
• Review product code changes to design optimal test cases and strategies, ensuring comprehensive coverage and risk mitigation.

• Required Qualifications:
• Master's or Bachelor's Degree in Computer Science, Software Engineering, or a related field.
• Minimum of 5+ years of progressive experience in software quality assurance, with experience in Databases technologies.
• Experience with mainframe environments (z/OS)
• Strong understanding and practical application of software testing methodologies, principles, and best practices.
• Excellent communication, collaboration, and interpersonal skills.
• Proficiency in at least one programming language, such as Python, Java, or C.
• Extensive experience with test automation frameworks and tools such as Selenium, Cypress, Playwright, JUnit, TestNG, PyTest, or similar.
• Hands-on experience with CI/CD tools and platforms (e.g., Jenkins).
• Proven experience in designing and executing performance, load, and scalability testing for enterprise-level applications.

• Desired Skills & Experience:
• Experience programming in IBM Assembler (HLASM), REXX, Metal C is a plus.
• Familiarity with API testing tools (e.g., Postman, RESTAssured, SoapUI).
• Relevant industry certifications such as ISTQB Advanced Level Test Manager, SAFe Agilist (SA).

• Business Travel:
• No (or minimal) business travel is expected for this position.