Sr Engineer, Software Test

Masimo•Irvine, CA

2d•Onsite

About The Position

We are seeking a highly skilled Senior Engineer, Software Test to lead the design, development, and execution of test strategies for medical device systems. This role combines hands-on system-level testing with ownership of scalable automation frameworks to ensure product quality, reliability, and regulatory compliance. The ideal candidate will drive both verification & validation activities and test automation infrastructure, working cross-functionally with software, hardware, systems, and quality teams to deliver high-quality medical devices.

Requirements

Bachelor’s or Master’s degree in Computer Engineering, Computer Science, Biomedical Engineering, or related field
5+ years of experience in medical device testing, system validation, or software quality engineering
Strong understanding of system-level testing across hardware, software, and integrated systems
Experience with test automation frameworks and scripting (Python, C/C++, or similar)
Solid knowledge of verification & validation processes and defect tracking systems
Hands-on experience with lab equipment and system-level debugging
Strong analytical and problem-solving skills

Nice To Haves

Medical Device industry experience.
Background in Agile/Scrum development environments.
Experience with CI/CD systems and automated test pipelines
Experience with Linux/Unix environments
Background in both hardware and software system testing
Experience mentoring or leading engineering efforts

Responsibilities

Design and develop comprehensive test strategies, plans, and test cases for medical device systems
Execute and oversee functional, integration, system-level, and performance testing
Lead verification and validation (V&V) activities in compliance with regulatory standards
Perform root cause analysis on defects and drive resolution with cross-functional teams
Review requirements and system architecture to ensure testability and coverage
Develop test reports, traceability matrices, and validation documentation
Design, develop, and maintain scalable automated test frameworks and infrastructure
Build automated test scripts using languages such as Python, C/C++, or similar
Integrate automated testing into CI/CD pipelines to enable continuous validation
Improve test efficiency, coverage, and reliability through automation and tooling
Evaluate and implement new tools and technologies to enhance test capabilities
Partner with software, hardware, systems, and quality teams to define test strategies and quality goals
Support system integration, product bring-up, and troubleshooting efforts
Collaborate with manufacturing and field teams on failure analysis and issue resolution
Mentor junior engineers and provide technical leadership in test methodologies