Sr Engineer, Embedded GUI Software

Job Summary: As a Sr Instrument Software Engineer, you will design, develop, and maintain high-performance graphical applications for next-generation patient monitoring devices. This role leverages strong expertise in C++ development, computer graphics, and interactive UI systems to build reliable, efficient, and visually intuitive user interfaces. You will work on performance-critical software, collaborate closely with cross-functional teams, and contribute throughout the full software lifecycle—from design and implementation to testing and documentation.Day to day: Design and develop C++-based GUI applications and visualization tools for embedded medical devices.Implement and maintain graphics-driven user interfaces, balancing usability, performance, and memory constraints.Build and optimize runtime systems, data formats, and serialization pipelines to support responsive UI behavior.Apply strong multithreading, memory management, and performance optimization principles.Participate in peer design and code reviews, ensuring software quality and maintainability.Produce clear software documentation and technical specifications.Contribute to software testing and validation, supporting stable and reliable device behavior.Collaborate in a fast-paced, cross-disciplinary development environment.Required Qualifications:Strong fundamentals in computer graphics and real-time rendering concepts.5+ years of C++ software development experience in performance-critical systems.Hands-on experience with GUI design and development, including visual tooling and user-facing interfaces.Solid understanding of operating system concepts, including scheduling, memory management, and multi-threading.Experience with software configuration management tools (Git, Jira-style workflows).Excellent analytical, problem-solving, and debugging skills.Strong verbal and written communication skills.Ability to excel in a dynamic, fast-moving development environment.BS or MS degree in Computer Science, Electrical Engineering, or a related field.Ability to work onsite Monday - Friday in Irvine, CA. Preferred Qualifications:Experience with Qt / QML or similar GUI frameworks.Experience with OpenGL / OpenGL ES and shading languages (GLSL).Background in GPU-accelerated or graphics-intensive applications.Education:BS or MS degree in Computer Science or EngineeringCompensation:The anticipated salary range for this position is $120,000 - $170,000 plus benefits. Actual placement within the range is dependent on multiple factors, including but not limited to skills, education, and experience. This position also qualifies for up to 10% annual bonus based on Company, department, and individual performance. Masimo offers benefits such as Medical, Dental, Vision, Life/AD&D, Disability Insurance, 401(k), Vacation, Sick, Holiday, Paid Maternity Leave, Flexible Spending Accounts, voluntary Accident, Critical Illness, Hospital, Long-Term Care, Employee Assistance Program, Pet Insurance, on-site Wellness Clinic, Fitness Center, Café. All benefits are subject to eligibility requirements.Full timePosting Date: 2025-07-25