Senior Software Test Automation Engineer

Title: Senior Software Test Automation Engineer

Department: R&D

Location: Niwot, CO (Hybrid)

Reports To: Software Test Manager

Particle Measuring Systems is a global leader for micro‑contamination monitoring equipment improving the performance of clean manufacturers in the semiconductor and pharmaceutical industries. We are a growing technology company in Niwot, Colorado, offering challenging projects in the development and manufacture of light scattering particle counters and diverse technologies.

• Lead and execute complex testing efforts across the software development lifecycle for application software and embedded systems, ensuring high‑quality releases.
• Design, develop, and enhance advanced test automation frameworks that are scalable, maintainable, and aligned with evolving product needs (e.g., Java, Python).
• Plan and lead testing activities for large or complex features/projects, including test scope definition, risk identification, and execution coordination.
• Collaborate closely with cross‑functional teams (software engineering, systems, product) to review requirements, refine use cases, and ensure robust test coverage and traceability.
• Develop and execute comprehensive test suites (functional, integration, system, and performance), both manual and automated, for complex workflows and edge cases.
• Troubleshoot and analyze complex defects, perform root cause analysis, and partner with developers to validate fixes and drive resolution.
• Integrate and maintain automated tests within CI/CD pipelines, improving reliability, execution speed, and feedback cycles.
• Contribute to and uphold best practices in test automation, coding standards, and QA processes through code reviews and team collaboration.
• Mentor and support less experienced engineers, providing guidance on tools, frameworks, and effective testing approaches.
• Evaluate and recommend improvements to tools, frameworks, and processes to enhance test efficiency and effectiveness.
• Create and maintain clear, detailed test documentation, ensuring transparency and knowledge sharing across teams.
• Participate actively in Agile events, contributing technical insight on testing considerations, risks, and dependencies.
• Continuously evaluate processes for improvements in efficiency, quality, and safety.

• BS degree in Computer Science, Software Engineering, or equivalent.
• At least 10 years’ experience as an Automation Software Test Engineer developing and executing automation software/firmware test scripts, testing and tracking defects.
• Strong technical foundation in software development and test principles.
• Experience with software test tools and processes, including automation testing and defect tracking.
• Expertise in test‑driven development, developing different levels of automated tests, such as functional test, integration test, system test, or performance test.
• Experience developing and maintaining automated tests using Ranorex (strongly preferred).
• Working experience with programming languages such as Java or Python.
• Familiarity with IntelliJ IDEA or other integrated development environments (IDEs).
• Strong analytical and problem‑solving skills, with strong attention to detail.
• Clear oral and written communication skills, especially technical writing.
• Self‑starter and capable of working effectively with minimal supervision.
• MS degree in a relevant field can substitute 3 years of professional experience.

• Experience working within an Agile Development Environment.
• Knowledge of Jira/Confluence.

• Primarily operates in an office/lab/manufacturing environment.
• Must be able to sit, stand, and use a computer for extended periods of time.
• Hybrid position: in‑office minimum 3 days per week.
• Occasional lifting of up to 20 lbs. may be required.
• Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions of this role.

Competitive base salary range: $100,000 - $140,000 depending on experience. Comprehensive benefits package includes health coverage, dental, vision, FSA, onsite clinic (CO employees), life insurance, 401(k) retirement plan with company match, vacation, holiday, and leave policies, tuition reimbursement, employee recognition programs, and employee assistance programs.

Particle Measuring Systems is a proud Equal Opportunity Employer and is committed to building an inclusive and supportive workplace where everyone can thrive.