Engineer II, Software Test

Bring more to life. Are you ready to accelerate your potential and make a real difference within life sciences, diagnostics and biotechnology? At Masimo, one of Danaher's 15+ operating companies, our work saves lives—and we're all united by a shared commitment to innovate for tangible impact. You'll thrive in a culture of belonging where you and your unique viewpoint matter. And by harnessing Danaher's system of continuous improvement, you help turn ideas into impact - innovating at the speed of life.

Masimo is a global medical technology company that develops and produces a wide array of industry-leading monitoring technologies, including non-invasive measurements, sensors, patient monitors, and automation and connectivity solutions. Our mission is, Masimo innovations empower clinicians to transform patient care. When you join our team, you'll be part of a culture that’s driven by passion, challenging the status quo, and making an impact in the lives of others.

Learn about the Danaher Business System which makes everything possible. The Engineer II, Software Test is responsible for design, development, and execution of test strategies for medical device systems. This role combines hands-on system-level testing with ownership of creating manual and automated test cases to ensure product quality, reliability, and regulatory compliance. The position reports to the Sr Manager, Instrument Software Test and is part of the Software Test Engineering department located in Irvine, CA and will be an on-site role.

• Design and develop comprehensive test strategies, plans, and test cases for medical device systems.
• Execute and oversee functional, integration, system-level, and performance testing.
• Review requirements and system architecture to ensure testability and coverage.
• Develop test reports, traceability matrices, and validation documentation.
• Build automated test scripts using languages such as Python, TCL, or similar.
• Partner with software, hardware, systems, and quality teams to define test strategies and quality goals.
• Support system integration, product bring-up, and troubleshooting efforts.

• B.S. Degree in computer science, computer engineering, software engineering, biomedical engineering, or related technical discipline.
• 3+ 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.
• Hands-on experience with lab equipment and system-level debugging.
• Experience with test automation frameworks and scripting (Python, C/C++, or similar).
• Familiarity with IEC 62304, ISO 13485, FDA Quality System Regulation, or other applicable software quality standards.
• Proficient in industry-standard communication protocols, including RS-232, I2C, SPI, and TCP/IP, for hardware and software integration, debugging, and validation.
• Strong analytical and problem-solving skills.

Masimo, a Danaher operating company, offers a broad array of comprehensive, competitive benefit programs that add value to our lives. Whether it's a health care program or paid time off, our programs contribute to life beyond the job.

The annual salary range for this role is $80,000 - $105,000. This is the range that we in good faith believe is the range of possible compensation for this role at the time of this posting. This range may be modified in the future. This job is also eligible for up to a 10% annual bonus/incentive pay.

We offer comprehensive package of benefits including paid time off, medical/dental/vision insurance and 401(k) to eligible employees.

Note:

No amount of pay is considered to be wages or compensation until such amount is…