Engineer II, Software Automation

Masimo•Irvine, CA

23h•$80,000 - $105,000•Onsite

About The Position

The Engineer II, Software Automation is responsible for developing, executing, and maintaining scalable test automation frameworks and infrastructure for complex, distributed systems — including microservice-based software platforms, on-prem and cloud deployments, and the in-house and third-party devices they integrate with. This role is a key technical contributor within the Systems Test Engineering organization, developing automation solutions that improve test efficiency, reliability, repeatability, and coverage. The ideal candidate applies knowledge of software verification and validation methodologies combined with strong software engineering skills. This is a full-time onsite position.

Requirements

2-3+ years of experience in software development, test automation, software verification, or a related engineering discipline
Working knowledge of software verification and validation methodologies
Experience with automated testing tools and scripting languages (Python, C#, C++, Java, or similar)
Experience with Git, CI/CD systems, and modern software development practices
Familiarity with defect tracking and test management tools
Understanding of Software Development Life Cycle (SDLC) and Agile development methodologies
Strong debugging, problem-solving, communication, and cross-functional collaboration skills
Ability to read, write, and communicate effectively in English.
Ability to interpret technical documents, schematics, and written instructions.
Ability to clearly document technical findings and communicate with cross-functional team members.

Nice To Haves

Experience within the medical device or other regulated industry
Familiarity with IEC 62304, ISO 13485, FDA Quality System Regulation, or other applicable software quality standards
Experience with CI/CD pipelines and automated build/test environments
Experience with virtualization platforms like VMware ESXi
Experience with test frameworks such as pytest or TestNG.
Familiarity with healthcare interoperability or messaging standards (e.g., HL7, WCTP) or other structured data/protocol formats
Experience with cloud platforms (e.g., AWS, Azure, GCP) and container/orchestration tooling (e.g., Docker, Kubernetes)

Responsibilities

Develop, execute, 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 (e.g., HL7, WCTP, and other device communication protocols) 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.