Senior Systems Automation Engineer

Masimo; Irvine (CA); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(k)

Vacation

Paid Maternity Leave

Flexible Spending Accounts

on-site Wellness Clinic

Fitness Center

Café

Job summary

Masimo in Irvine, CA is seeking a Sr Engineer for Systems Software Automation to design, develop, and maintain scalable automated test frameworks for complex distributed systems and device integrations.

The role emphasizes building hardware-in-the-loop solutions, CI/CD integration, and cross-functional collaboration across Software, Hardware, and Quality teams. Bachelor’s in a technical field is required; Master’s preferred.

Qualifications

• 5+ years of experience in software development, test automation, software verification, or related engineering.
• Strong software development experience with Python or Java, including object-oriented programming, debugging, and development of reusable software components.
• Experience designing and maintaining automated test frameworks or substantial automation infrastructure.
• Experience testing microservice-based software systems with a distributed network topology, on-prem, cloud, or hybrid deployments.
• Experience with Git, CI/CD systems, and modern software development practices.
• Strong debugging, problem-solving, communication, and cross-functional collaboration skills.

Responsibilities

• Design, develop, and maintain scalable automated test frameworks and support infrastructure for instrument and system-level testing.
• Develop reusable test libraries, device interfaces, protocol libraries, utilities, and common automation components across instrument platforms and downstream system integrations.
• Build hardware-in-the-loop solutions (software simulators and emulators) for devices and external systems to enable isolated and reproducible testing.
• Develop automation for system, integration, functional, regression, communication protocol, performance, and reliability testing across microservice-based software and hybrid on-prem/cloud infrastructure.
• Validate protocol and data integrations between in-house and third-party devices and downstream system services.
• Integrate automated testing into CI/CD pipelines to support continuous validation and rapid feedback.
• Develop solutions for automated test execution, data collection, logging, reporting, and results analysis.
• Participate in the Quality process by producing verification records and traceability of testing to requirements.
• Assist with setup and maintenance of test environment and laboratory equipment, both physical and virtual.
• Partners with Test, Software, Systems, Hardware, and Quality Engineering teams to develop test strategies and improve product testability and observability.
• Contribute to system and product test strategies with an emphasis on automation, repeatability, scalability, and maintainability.
• Collaborate with development teams during product design to improve system testability, observability, interfaces, communication protocols, and diagnostic capabilities.
• Mentor engineers contributing to the automation codebase and establish best practices for software architecture, code quality, maintainability, and reuse.
• Participate in technical design and code reviews and provide technical leadership for test automation initiatives.

Skills

5+ years exp

Python/Java

Test automation

Distributed systems

Debugging

Cross-functional

Education

Bachelor's degree in CS/CE/SE

Master's preferred

Tools

Git

Docker

Kubernetes

VMware ESXi

CI/CD tools

Job description

Masimo in Irvine, CA is seeking a Sr Engineer for Systems Software Automation to design, develop, and maintain scalable automated test frameworks for complex distributed systems and device integrations.

The role emphasizes building hardware-in-the-loop solutions, CI/CD integration, and cross-functional collaboration across Software, Hardware, and Quality teams. Bachelor’s in a technical field is required; Master’s preferred.