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Sr Test Automation Engineer Jobs in Colorado (NOW HIRING)

$43.25 - $57/hr

We are seeking an experienced AI Test Automation Engineer with strong expertise in AI agents, Playwright automation, and test framework development. The ideal candidate will help drive AI adoption ...

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Automated Test Engineer

Aurora, CO · On-site

$46.75 - $62/hr

SIMILAR CAREER TITLES Automated Test Engineer, Software Test Engineer, QA Automation Engineer, Test Automation Specialist, Quality Assurance Engineer, Automation Developer, Test Analyst, Automation Q ...

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Sr Test Automation Engineer information

How does a Sr Test Automation Engineer typically collaborate with developers and other QA team members on a project?

As a Sr Test Automation Engineer, collaboration is a key part of the role. You will regularly work with software developers to understand application requirements, clarify acceptance criteria, and ensure that automated tests are aligned with development goals. Additionally, you’ll partner closely with other QA engineers to design shared test frameworks, conduct code reviews, and coordinate on test coverage. Strong communication and teamwork are essential, as you’ll often participate in sprint planning meetings, daily stand-ups, and defect triage sessions to maintain high software quality throughout the development cycle.

What is the difference between Sr Test Automation Engineer vs Test Automation Engineer?

CriteriaSr Test Automation EngineerTest Automation Engineer
Required CredentialsBachelor's degree in CS or related field; experience in automation toolsBachelor's degree in CS or related field; some experience in automation tools
Work EnvironmentSenior-level projects, mentoring, complex automation tasksEntry to mid-level automation tasks, assisting in testing
Employer & Industry UsageTech companies, software firms, QA teamsStartups, small to medium enterprises, QA teams

The main difference between a Sr Test Automation Engineer and a Test Automation Engineer lies in experience, project complexity, and responsibilities. The senior role involves leading automation efforts, mentoring juniors, and handling complex test scenarios, while the standard role focuses on executing automation tasks and supporting testing processes.

What is a Sr Test Automation Engineer?

Sr Test Automation Engineers are experienced professionals responsible for designing, developing, and maintaining automated testing frameworks and scripts to ensure the quality of software applications. They lead efforts to automate repetitive testing tasks, analyze test results, and collaborate with developers and QA teams to identify and resolve software defects. Their role often includes mentoring junior team members, selecting appropriate test tools, and contributing to continuous integration and deployment processes. With their advanced technical skills and understanding of software development lifecycles, Sr Test Automation Engineers play a critical role in delivering reliable and high-quality software products.

What are the key skills and qualifications needed to thrive as a Sr Test Automation Engineer?

To thrive as a Sr Test Automation Engineer, you need expertise in software testing methodologies, proficiency in programming languages such as Java or Python, and a strong understanding of automation frameworks, typically backed by a relevant degree or certifications. Familiarity with tools like Selenium, Jenkins, Git, and test management systems is essential for designing and executing automated test suites. Critical thinking, problem-solving abilities, and effective communication are standout soft skills that help in troubleshooting and collaborating across teams. These skills and qualities are crucial for ensuring software quality, improving efficiency, and accelerating the delivery of reliable applications.
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Infographic showing various Sr Test Automation Engineer job openings in Colorado as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 2% Contract, and 1% Nights. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution.

Senior Software Test Automation Engineer

Particle Measuring Systems

Niwot, CO • On-site

$124K - $161K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 11 days ago


Job description

Do you want to be part of a business that genuinely values entrepreneurialism, innovation and individual accountability? We focus on our customers and are proud of the difference our technology makes. We partner with some of the biggest manufacturing companies in the world and our technical innovations are used to enhance well-known brands across multiple industries.
Title Senior Software Test Automation Engineer
Department R&D
Location Niwot, CO (Hybrid)
Reports To Software Test Manager
About Us
Established in 1972, Particle Measuring Systems is a global leader for micro-contamination monitoring equipment improving the performance of clean manufactures in the semiconductor and pharmaceutical industries. We're a growing technology company in Niwot, Colorado, the heart of the Rocky Mountains. We offer an exceptional and rewarding work environment in a great place to live. Our employees enjoy challenging projects in the development and manufacture of light scattering particle counters and diverse technologies and applications.
Your Impact
We are looking for a Senior Software Test Automation Engineer who will contribute to the success of the R&D Team, applying their expertise in test automation and systems-level testing to support the achievement of team and company goals and deliver innovative, reliable solutions. In this role, the successful candidate will collaborate effectively with colleagues and cross-functional teams, demonstrate strong problem-solving and decision-making skills, and maintain a commitment to professional excellence, quality and continuous improvement.
The Role
As a Senior Software Test Automation Engineer, you will be a key contributor to a team of highly skilled engineers, leading testing efforts for complex application software and embedded firmware across the product lifecycle. You will design and execute advanced test strategies for large features and systems, develop and maintain robust automation frameworks, and collaborate closely with developers and systems engineers to ensure comprehensive test coverage. This role involves tackling challenging technical problems, driving defect resolution, and enhancing test automation to support efficient, high-quality software delivery.
Job Responsibilities
  • 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.
  • This job description is not intended to be all-inclusive. Responsibilities may evolve over time, and other related duties may be assigned to meet the ongoing needs of the company.

Required Qualifications
  • A 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.
  • 3 years of professional experience may be substituted for MS degree in a relevant field.
  • Strong technical foundation in software development and test principles.
  • Experience with software test tools and processes, including automation testing and defect tracking.
  • Expertise on 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.

Preferred Qualifications
  • Experience working within an Agile Development Environment is preferred.
  • Knowledge of Jira/Confluence is preferred.

Work Environment & Physical Requirements
  • This role primarily operates in an office/lab/manufacturing environment.
  • Must be able to sit, stand, and use a computer for extended periods of time.
  • This is a 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.

Compensation & Benefits
  • Competitive base salary range: $100,000 - $140,000 depending on experience
    • Our compensation philosophy: we offer competitive pay based on market data, including local, national, and industry benchmarks. For new hires, offers are generally within the established min- to mid-point of the range for the role, with flexibility to recognize experience, skills, and education. Our approach ensures fair pay internally while remaining competitive externally and allows room for growth.
  • Comprehensive benefits package:
    • Health coverage: medical, 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, Employee assistance programs

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