D Matrix

D Matrix

Principal Software Engineer in Test (SDET)

Santa Clara · Principal

Sponsorship not specifiedDetected 6 days ago
PythonFull-Stack DevelopmentData StructuresAlgorithmsCI/CDJenkinsMachine LearningLLMsElectrical EngineeringpytestTest AutomationLeadershipCommunicationCollaborationProblem Solving

About the role

  • We are looking for a Principal Software Engineer in QA to join our Software Qualification team and play a central role in productizing the d-Matrix AI compute engine.
  • This is a senior individual contributor role with team leadership responsibilities - you will both set the technical direction for test strategy and directly mentor and guide junior engineers through test planning, automation, and execution.

Responsibilities

  • Lead and mentor junior QA engineers in test planning, test case design, automation best practices, and systematic debugging.
  • Drive root cause analysis for test failures and escaped defects
  • own resolution workflows with engineering counterparts.
  • Represent the Software Qualification team in cross-functional design and planning reviews, surfacing quality risks early.
  • Design, implement, and maintain scalable Python-based test suites within the Pytest framework, covering both software and system-level use cases.
  • Build and improve the d-Matrix end-to-end test suite and regression test suite, integrated into CI/CD pipelines using Jenkins and GitLab.
  • Develop and maintain test infrastructure that supports rapid, reliable validation of workloads and ML models across hardware and software configurations.
  • Design and execute test cases covering lower-layer stack components including FPGAs, bootloaders, and host runtime drivers.
  • Validate firmware behavior, embedded architectures, and IO technologies including PCIe interfaces.
  • Drive root cause analysis for test failures and escaped defects; own resolution workflows with engineering counterparts.

Requirements

  • Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field, with 10+ years of industry experience.
  • 8+ years of experience in software development with strong command of data structures and algorithms.
  • 8+ years of experience developing and testing lower-layer software stacks including FPGAs, bootloaders, and host runtime drivers.
  • 5+ years of experience in firmware design, implementation, and troubleshooting.
  • 3+ years of experience with embedded architectures and IO technologies, including PCIe, GPUs, and CPUs.
  • ability to write production-quality test code applying advanced data structures and algorithms.
  • Proven ability to debug complex, multi-layered issues spanning hardware and software.
  • Comfort navigating ambiguous, open-ended problems and driving toward structured, measurable outcomes.

Nice to have

  • familiarity with the software stack required to run ML workloads on custom silicon.
  • Prior experience in a principal or staff-level QA or test engineering role with demonstrated team leadership and mentorship.
  • If you thrive on deep technical ownership, complex problem-solving, and making quality a first-class engineering discipline, this role is built for you.

Benefits

  • Define test coverage strategies for new features and deployment scenarios in collaboration with product, software, and systems teams.
  • Partner with software development, product, and systems teams on test coverage planning and result interpretation.

Company info

  • At d-Matrix, we are focused on unleashing the potential of generative AI to power the transformation of technology.
  • We are at the forefront of software and hardware innovation, pushing the boundaries of what is possible.
  • Our culture is one of respect and collaboration.
  • We value humility and believe in direct communication.
  • Our team is inclusive, and our differing perspectives allow for better solutions.
  • We are seeking individuals passionate about tackling challenges and are driven by execution.
  • Ready to come find your playground?
  • Together, we can help shape the endless possibilities of AI.

Equal opportunity

  • Employment Policy
  • d-Matrix is proud to be an equal opportunity workplace and affirmative action employer. We're committed to fostering an inclusive environment where everyone feels welcomed and empowered to do their best work. We hire the best talent for our teams, regardless of race, religion, color, age, disability, sex, gender identity, sexual orientation, ancestry, genetic information, marital status, national origin, political affiliation, or veteran status. Our focus is on hiring teammates with humble expertise, kindness, dedication and a willingness to embrace challenges and learn together every day.
  • d-Matrix does not accept resumes or candidate submissions from external agencies. We appreciate the interest and effort of recruitment firms, but we kindly request that individual interested in opportunities with d-Matrix apply directly through our official channels. This approach allows us to streamline our hiring processes and maintain a consistent and fair evaluation of al applicants. Thank you for your understanding and cooperation.
  • d-Matrix is proud to be an equal opportunity workplace and affirmative action employer.
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This listing is sourced directly from D Matrix's careers page and normalized into a canonical job model.