Field Service Engineer III - Mass Spectrometry (On-Site)

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Able to lift 40 lbs. without assistance, Laboratory Setting, Office, Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.), Will work with hazardous/toxic materials

Job Description

At Thermo Fisher Scientific, our mission is to enable our customers to make the world healthier, cleaner and safer. Behind important scientific discoveries are sophisticated analytical instruments—and skilled engineers who keep those instruments performing reliably.

We're seeking an experienced Field Service Engineer III to provide dedicated, on-site technical support for advanced mass spectrometry (primarily) and high-performance liquid chromatography (HPLC) systems at a customer’s location  in Cambridge, Massachusetts.

In this role, you'll be more than someone who repairs instruments. You'll be a trusted technical partner to scientists and laboratory teams, solving challenging equipment problems, maximizing instrument uptime, and helping ensure critical scientific work continues with minimal disruption.

What makes this opportunity different? Rather than following a traditional travel-heavy field service schedule, you'll primarily support one customer’s location, allowing you to develop strong working relationships, gain familiarity with the laboratory's instrumentation, and take meaningful ownership of equipment reliability. Occasional support at nearby Cambridge customer sites will also be required.

What You'll Do

Solve complex technical challenges

• Troubleshoot, diagnose, and repair sophisticated mass spectrometry.
• Investigate mechanical, electronic, vacuum, fluidic, and software-related problems to identify root causes and restore instrument performance.
• Perform instrument installations, upgrades, diagnostics, and performance verification.

Keep critical laboratory equipment running

• Conduct preventive and corrective maintenance to minimize instrument downtime and support reliable laboratory operations.
• Identify recurring equipment issues and recommend solutions that improve long-term instrument performance.
• Maintain accurate service documentation, equipment histories, and technical records in accordance with applicable procedures.

Become a trusted partner to scientists

• Work directly with scientists, laboratory personnel, and other customer stakeholders to understand instrument performance concerns and service priorities.
• Communicate technical findings, service progress, and repair recommendations clearly and professionally.
• Respond effectively to urgent service needs, balancing technical quality, safety, and customer expectations.
• Work independently at the primary customer site while collaborating with technical support teams and other service specialists when needed.

What Makes You a Strong Fit

We're looking for someone who enjoys understanding how sophisticated analytical instruments work, investigating challenging technical problems, and making a measurable difference in laboratory productivity.

Technical experience

• Hands-on experience troubleshooting, maintaining, repairing, or servicing mass spectrometry, LC-MS, HPLC/UHPLC, or comparable complex analytical laboratory instrumentation.
• Strong understanding of instrument hardware and supporting systems, including electronics, mechanical components, fluidics, vacuum technology, and instrument control software.
• Ability to systematically diagnose complex instrument failures, identify root causes, and verify that equipment is operating properly after service.
• Familiarity with laboratory data systems, instrument software, and associated technologies.

Professional strengths

• Confidence working independently and managing technical priorities in a customer laboratory environment.
• Strong communication and interpersonal skills, particularly when explaining technical issues to scientists and laboratory personnel.
• A customer-focused approach with a commitment to responsive, high-quality service.
• Attention to detail when completing maintenance activities, service reports, and technical documentation.
• Ability to collaborate effectively with technical teams and customer stakeholders.

Education and experience

• Advanced degree with at least 3 years of relevant experience, or a bachelor's degree with at least 5 years of relevant experience.
• A degree in Chemistry, Engineering, Physics, Life Sciences, or a related technical or scientific discipline is preferred.
• Experience supporting laboratory instrumentation in pharmaceutical, biotechnology, analytical testing, or regulated environments is advantageous.
• Experience with quality management systems and regulated laboratory procedures is preferred.
• Proficiency in English and a valid driver's license are required.

Why Join Thermo Fisher Scientific?

Work with advanced scientific technology. Apply your expertise to sophisticated analytical systems used by scientists to generate critical research and laboratory data.

Build deeper customer relationships. With a primarily dedicated on-site assignment, you'll have the opportunity to develop familiarity with the laboratory, its equipment, and the people who depend on your technical expertise.

Take ownership of meaningful technical problems. From complex troubleshooting to proactive maintenance, your work will help customers minimize downtime and maintain productive laboratory operations.

Be part of a company with an important mission. Your contributions will help customers keep their scientific work moving forward, supporting the discoveries, testing, and innovations that make a difference in the world.

Location and Work Arrangement

This position is based in Cambridge, Massachusetts, with work performed primarily at a dedicated customer laboratory. Occasional travel to nearby customer sites within Cambridge may be required.

Bring your technical expertise to a role where instrument reliability, scientific progress, and customer trust come together.

Apply to join Thermo Fisher Scientific as a Field Service Engineer III – Mass Spectrometry & HPLC.

Compensation and Benefits

The hourly pay range estimated for this position based in Massachusetts is $40.06–$60.09.

This position may also be eligible to receive a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy. We offer a comprehensive Total Rewards package that our U.S. colleagues and their families can count on, which includes:

• A choice of national medical and dental plans, and a national vision plan, including health incentive programs

• Employee assistance and family support programs, including commuter benefits and tuition reimbursement

• At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy

• Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan

• Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount

For more information on our benefits, please visit: https://jobs.thermofisher.com/global/en/total-rewards