Full-Time

Senior Software Test Automation Engineer

Updated on 7/21/2026

Particle Measuring Systems

Particle Measuring Systems

201-500 employees

Provides contamination-control instruments for ultra-clean manufacturing

Compensation Overview

$100k - $140k/yr

Longmont, CO, USA

Hybrid

In-office minimum 3 days per week.

Category
QA & Testing (1)
Required Skills
Python
Software Testing
Java
DevOps

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Requirements
  • 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.
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.
Desired Qualifications
  • Experience working within an Agile Development Environment is preferred.
  • Knowledge of Jira/Confluence is preferred.
Particle Measuring Systems

Particle Measuring Systems

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Particle Measuring Systems (PMS) provides instruments and expertise to control contamination in ultra-clean manufacturing environments, such as pharmaceutical and semiconductor production. Its products include laser particle counters, particle spectrometers, and comprehensive Facility Monitoring Systems that count and measure airborne particles to monitor cleanrooms and other controlled spaces. The devices collect data on particle size and concentration, perform real-time monitoring, and trigger alarms to help maintain contamination-free conditions. PMS differentiates itself through a long history dating back to 1972, a spaceflight heritage, a broad patent portfolio, and its role as a global provider of established, gold-standard monitoring solutions within a larger productivity-focused group (Spectris). Its goal is to help manufacturers keep clean facilities, improve product quality and yield, and reduce risk by providing reliable, scalable contamination-control tools and expertise.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Boulder, Colorado

Founded

1972

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Simplify Jobs

Simplify's Take

What believers are saying

  • PMS acquired EMS in 2026, expanding cleanroom services in strategic territories.
  • BioCapt Single Use Microbial Impactor celebrates 10 successful years.
  • Facility Pro software integrates particle and microbial data for compliance.

What critics are saying

  • Beckman Coulter erodes PMS market share with superior global distribution.
  • TSI AeroTrak undercuts Airnet II pricing by 20-30% in semiconductor fabs.
  • USP <1116> revision in Q2 2026 obsoletes BioCapt without upgrades.

What makes Particle Measuring Systems unique

  • PMS invented laser particle counter in 1972, setting contamination control standard.
  • PMS sent first particle spectrometer to space on 1978 Pioneer Venus Probe.
  • PMS holds over 60 active patents in micro-contamination monitoring technology.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Health Savings Account/Flexible Spending Account

Life Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Vacation

Paid Holidays

Remote Work Options

Hybrid Work Options

Tuition Reimbursement

Company News

Bionow
Feb 2nd, 2024
Particle Measuring Systems, Inc. Announces Acquisition of Environmental Monitoring Services Irl. Limited and EMS Particle Solutions Ltd

Particle Measuring Systems, Inc. has partnered with EMS for almost thirty years as an exclusive sales and service channel for customers in these strategic territories.

Particle Measuring Systems
Jan 29th, 2024
Data Management for Environmental Monitoring in a Pharmaceutical Manufacturing Facility

Particle Measuring Systems (PMS) has partnered with Novatek who started with environmental monitoring Software in 2003.

Environmental Expert
Dec 22nd, 2023
Aerosol Particle Monitoring Inside of Semiconductor Process Tools

Particle Measuring Systems introduces the Airnet(R) II 201-4 portable aerosol particle counter as a solution to historical constraints in using inline particle counters for monitoring process tools.

Environmental Expert
Nov 29th, 2023
10 Years of BioCapt Single Use Impactor

Particle Measuring Systems has recently announced 10 years of the Biocapt Single Use Microbial Impactor.

BioPharm International
Oct 4th, 2023
Particle Measuring Systems Announce Acquisition of Environmental Monitoring Services Limited and EMS Particle Solutions

Particle Measuring Systems announce acquisition of Environmental Monitoring Services limited and EMS Particle Solutions.