Principal Software Development Engineer in Test

About The Role We are seeking an experienced Principal Software Development Engineer in Test to design and build scalable, high-performance automation frameworks that accelerate test execution and improve the overall quality lifecycle. You will be deeply involved in testing and validating cutting-edge Generative AI solutions that enhance business delivery speed and operational efficiency. What You?ll Do Design, develop, and maintain automation frameworks for UI and API testing. Collaborate closely with engineering teams to challenge and improve system design and architecture. Integrate Generative AI agents and protocols like MCP into testing workflows. Conduct white box testing for Java and Angular applications. Optimize automation processes for faster and more reliable execution. Work across diverse tech stacks, databases, and CI/CD pipelines to ensure product quality. We'd Love For You To Have 5 to 7 years of experience in automation testing. Strong proficiency in Java and Python. Strong white-box testing skills focused on Java and Angular codebases. Solid knowledge of TypeScript/JavaScript for UI automation. Proven experience in building and maintaining test automation frameworks for both UI and API layers. Hands-on experience with Generative AI agent development and Model Context Protocol (MCP). Proficiency with Jenkins and Docker for continuous integration and containerization. Experience with PostgreSQL and MySQL databases. Preferred: Background in the AdTech domain. Ability to critically evaluate and challenge system architecture for robustness, scalability, and quality. Qualifications Should have a bachelor?s degree in engineering (CS / IT) or equivalent degree from a well-known Institute / University. Additional Information Return to Office : PubMatic employees throughout the global have returned to our offices via a hybrid work schedule (3 days ?in office? and 2 days ?working remotely?) that is intended to maximize collaboration, innovation, and productivity among teams and across functions. Benefits : Our benefits package includes the best of what leading organizations provide, such as paternity/maternity leave, healthcare insurance, broadband reimbursement. As well, when we?re back in the office, we all benefit from a kitchen loaded with healthy snacks and drinks and catered lunches and much more! Diversity and Inclusion : PubMatic is proud to be an equal opportunity employer; we don?t just value diversity, we promote and celebrate it. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. About PubMatic PubMatic is one of the world?s leading scaled digital advertising platforms, offering more transparent advertising solutions to publishers, media buyers, commerce companies and data owners, allowing them to harness the power and potential of the open internet to drive better business outcomes. Founded in 2006 with the vision that data-driven decisioning would be the future of digital advertising, we enable content creators to run a more profitable advertising business, which in turn allows them to invest back into the multi-screen and multi-format content that consumers demand.