Sustaining Mechanical Engineering Intern

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 Sustaining Mechanical Engineer Intern Department Engineering Location Niwot (100% on-site) Reports To Senior Sustaining Engineering 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 Sustaining Mechanical Engineer Intern who will contribute to the success of the Engineering Team, applying their knowledge in Mechanical Engineering 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 Sustaining Mechanical Engineer Intern, you will collaborate on highly technical products with a team of dedicated engineers and scientists from various disciplines. Under the guidance of your manager and assigned mentor, you will support a key sustaining effort by building, testing, and validating a thermal model of an existing gas particle counter. Job Responsibilities Supporting research, new product development, and sustaining engineering activities Designing mechanical, opto-mechanical and electro-mechanical assemblies with support from your functional manager and assigned mentor Execution of test plans, prepare and present detailed test reports 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 Currently pursuing a Bachelor of Science in Mechanical Engineering or Physics as a third- or fourth-year student, or enrolled in a graduate program Coursework in fluid dynamics, thermal analysis, physics and machine design Strong analytical skills Proficiency in SolidWorks CAD required Self-directed and able to collaborate as part of a cross-functional team Excellent technical problem-solving skills Strong oral and written communication skills Ability to follow detailed direction Must be at least 18 years of age Authorized to work in the United States Work Environment & Physical Requirements This is a 40-hour per week, full-time, on-site position for the summer of 2026 (3 months) 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 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 Salary: $25 per hour 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. #LI-JB1 Particle Measuring Systems is a global leader in designing and manufacturing micro-contamination monitoring equipment. Based in Boulder, Colorado, our state of the art technology is instrumental in improving clean room performance in the semiconductor and pharmaceutical markets. Our specialized technology, and the challenging work necessary to create this technology, enables our company to attract talented team members so that everyone has the opportunity to reach their potential in engaging and stimulating roles. The diverse experience of our employees at all levels brings unique ideas and contributions to Particle Measuring Systems. Join Particle Measuring Systems and become part of a company that recognizes our success is driven by you! We are an Equal Opportunity Employer, committed to affirmative action, a discrimination-free workplace, and fair treatment to all employees. We offer a competitive salary and benefit programs, including medical, dental, vision, life and AD&D insurance, short- and long-term disability programs, a flexible spending account, a tuition reimbursement program, a 401(k) plan, profit sharing, paid company holidays and paid time off. As part of our value system, we maintain a non-smoking campus and provide an onsite clinic for employees to emphasize health and well-being in the workplace. We are proud to be an Equal Opportunity Employer. Colorado is one of the best places to live in the USA. We offer relocation assistance for many of our positions. Come live in Colorado!