Field Service Engineer

Reporting to a Field Service Manager, a Field Service Engineer will maintain technical responsibility over the Mevion Medical Systems  Proton Therapy System (PTS). The role involves learning and becoming proficient in operating the PTS for various customer needs, regularly interacting with customers’ professional and technical staff to resolve all operational issues with Mevion products at customer sites.

• Operate Proton Therapy System, including troubleshooting and post‑service testing.
• Provide highly visible customer support through on‑site operation, corrective and preventive maintenance of proton therapy equipment and ancillary devices.
• Clearly communicate system status to the customer and Mevion employees.
• Work on other complex clinical systems related to the PTS, such as motion‑control systems, CT scanners, X‑ray and radiological technology devices, and robotic manipulators directly at the customer site.
• Ensure PTS devices perform according to specifications by monitoring daily treatments, system performance, and identifying needed corrections or improvements; report and document all complaints and key performance indicators.
• Maintain equipment and systems according to the maintenance schedule.
• Troubleshoot PTS equipment, including electrical, mechanical, and software problems.
• Repair equipment and systems, taking all necessary actions to solve problems.
• Report and document interventions and actions undertaken with required detail and accuracy in accordance with facility, RA/QA, and FDA regulations.
• Meet appropriate key performance indicators (throughput, customer satisfaction, uptime).
• Maintain a high degree of professional knowledge and safety consciousness, performing activities under the safest working conditions.
• Maintain a clean working environment and behavior in line with safety and regulatory rules.
• Maintain calibrated equipment and tooling according to specifications.
• Maintain on‑site inventory and perform part‑management duties.
• Other duties as assigned by Service Management.

• Bachelor of Science or equivalent in Engineering, Physics, or related field preferred; or 4–6+ years of technical experience in the military or equivalent (e.g., electronics technicians, mechanics).
• Experience with radiation therapy equipment is a plus.
• Electronic, electrical, and mechanical ability.
• Experience working with computer interfaces, instrumentation, and control systems.
• Preferred experience with proton systems.
• Strong interest in new technology and continuous learning.
• Sound computer usage and debugging skills.
• Knowledge of networks and networking techniques.
• Solid understanding of imaging systems.
• Experience with Salesforce or equivalent CRM product and productivity software desired.
• Experience with troubleshooting and data analysis techniques required.
• Medical physics experience is a plus.
• Experience with dosimetry hardware and software.

• Cooling systems, cryogenics, vacuum systems, PLCs, regulation loops, drivers, sensors, electric motors, high‑voltage equipment, low‑voltage equipment, etc.
• Mechanical system repair, maintenance, and operations of large systems.

• Operating principles and service techniques for the subsystems of MEVION equipment.
• Proficiency in all software, control system elements, and user interfaces of the MEVION systems.
• Understanding of the electrical, vacuum, and water‑cooling systems of MEVION equipment and hospital infrastructure.

• Self‑starter who thrives within a small team and requires minimal supervision.
• Detail‑oriented with excellent follow‑through.
• Superior customer service mentality.
• Strong commitment to teamwork and ability to contribute to a collaborative work environment.
• Works well under pressure.

• Ability to sit and stand for long periods, bend, stoop, kneel, and crouch.
• Ascend and descend ladders and stairs up to 20 feet.
• Ability to lift, carry, push, or pull up to 50lbs.
• Good manual dexterity.
• Fluent in English and able to hear clearly.
• Willingness to work off‑shift, nights, weekends, and holidays with occasional overtime beyond 40hours per week.
• Ability to travel for extended periods, both domestic and international, sometimes on a moment’s notice.
• Must be able to use standard office equipment such as computer, keyboard, copier, and telephone.
• Exposure to hazardous materials, radiation‑producing equipment, high magnetic fields, high voltages, compressed and liquefied gases, and radioactive materials.
• Inability for individuals with pacemakers, automatic defibrillators, or similar implants; other implanted metallic materials considered case by case with medical advice.
• Strict adherence to corporate safety procedures mandatory.