Sr Engineer, Software Automation

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

Benefits offered by this job

Medical

Dental

Vision

401(k)

Vacation

On-site Wellness Clinic

Café

Job summary

Masimo Corporation in Irvine, CA is seeking a Sr Engineer, Software Automation to design, develop, and maintain automation frameworks for on‑premises, mobile, and cloud services, ensuring quality, security, and performance.

You will lead test automation efforts, collaborate across engineering, QA, DevOps, and security teams, contribute to CI/CD, mentor juniors, and help strengthen cybersecurity practices within a modern, on-site work environment.

Qualifications

• 5+ years of experience in software engineering or test automation.
• Proficiency in Java and Python for automation scripting.
• Strong knowledge of networking protocols and systems (TCP/IP, DNS, DHCP, HTTP/S).
• Experience with mobile testing tools (Appium, Espresso, XCUITest).
• Hands‑on experience testing cloud applications and APIs (AWS, Azure, GCP, or private cloud).
• Familiarity with cybersecurity principles and secure coding/testing practices.
• Experience working in secure network or compliance‑driven environments.
• Strong analytical, problem‑solving, and communication skills.

Responsibilities

• Design, develop, and maintain automated test suites for on‑premises applications, mobile platforms, and cloud services/APIs.
• Execute and analyze manual and automated tests; troubleshoot issues using results and logs.
• Validate system behavior in secure networking environments per cybersecurity best practices.
• Collaborate with engineering, QA,DevOps, and security teams to ensure coverage of functional, performance, and security testing.
• Build and manage complex test environments including infra, devices, and cloud components.
• Identify and report potential security vulnerabilities with security/compliance teams.
• Contribute to CI/CD pipelines and integrate automation into workflows.
• Document test strategies, results, and recommendations for quality improvements.
• Mentor junior engineers and promote quality, security, and continuous learning.

Skills

Java

Python

Networking protocols

Mobile testing tools

Cloud services testing

Cybersecurity principles

CI/CD

Analytical thinking

Communication skills

Education

Bachelor's degree in Computer Science or related field

Master’s degree in CS/Engineering/Cybersecurity (preferred)

Tools

Appium

Espresso

XCUITest

Postman

REST Assured

OWASP ZAP

Job description

Job Summary:

The Sr Engineer, Software Automation is responsible for designing, developing, and maintaining automation frameworks to ensure the quality, security, and performance of on-premises server–client applications, mobile platforms (Android and iOS), and cloud-based services. This role requires expertise in test automation, networking, system‑level validation, and secure software practices. The successful candidate will collaborate cross‑functionally to validate complex, interconnected systems and drive continuous improvement in testing and product quality.

Please note this is an onsite position at our Irvine, CA. office.

Duties & Responsibilities:

• Design, develop, and maintain automated test suites for on‑premises applications, mobile platforms, and cloud services/APIs.
• Execute and analyze manual and automated test cases; troubleshoot issues using test results and logs.
• Validate system behavior in secure networking environments, ensuring alignment with cybersecurity best practices.
• Collaborate with engineering, QA, DevOps, and security teams to ensure comprehensive coverage of functional, performance, and security testing.
• Build and manage complex test environments including physical infrastructure, mobile devices, and cloud/virtualized components.
• Identify and report potential security vulnerabilities in partnership with internal security and compliance teams.
• Contribute to CI/CD pipelines and integrate automation into development workflows.
• Document test strategies, execution results, and recommendations for quality improvements.
• Mentor junior engineers and promote a culture of quality, security, and continuous learning.

Minimum Qualifications:

• 5+ years of experience in software engineering or test automation
• Proficiency in Java and Python for automation scripting
• Strong knowledge of networking protocols and systems (e.g., TCP/IP, DNS, DHCP, HTTP/S)
• Experience with mobile testing tools (e.g., Appium, Espresso, XCUITest)
• Hands‑on experience testing cloud applications and APIs (AWS, Azure, GCP, or private cloud)
• Familiarity with cybersecurity principles and secure coding/testing practices
• Experience working in secure network or compliance‑driven environments
• Strong analytical, problem‑solving, and communication skills

Preferred Qualifications:

• Master’s degree in Computer Science, Engineering, Cybersecurity, or related field
• Experience with security testing tools and practices (e.g., static/dynamic analysis, vulnerability scanning, OWASP Top 10)
• Knowledge of authentication, authorization, encryption, and secure communications
• Hands‑on experience with API security testing (e.g., Postman, REST Assured, OWASP ZAP)
• Familiarity with DevSecOps practices and integrating security into CI/CD pipelines
• Experience with performance, load, or penetration testing
• Background in Agile/Scrum development environments

Education:

Bachelor’s degree in Computer Science, Software Engineering, or related field.

Compensation:

The anticipated range for this position is $100,000 - $130,000. 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.

Physical requirements/Work Environment:

This position primarily works in an office environment. It requires frequent sitting, standing and walking. Daily use of a computer and other computing and digital devices is required. May stand for extended periods when facilitating meetings or walking in the facilities.

The physical demands of the position described herein are essential functions of the job and employees must be able to successfully perform these tasks for extended periods. Reasonable accommodation may be made for those individuals with disabilities to perform the essential functions of the job described.