Junior Electrical Engineer

Mevion Medical Systems; Littleton (MA); On-site; USD 65,000 - 90,000; Full time

Job summary

Mevion Medical Systems in Littleton, MA is seeking a Junior Electrical Engineer to support design and development of electrical subsystems for the MEVION S250 proton therapy platform.

You will collaborate with a multidisciplinary global team to contribute to electrical design, prototyping, testing, troubleshooting, and product improvements across the product lifecycle.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering or equivalent; recent graduates encouraged.
• Proficiency in English; Mandarin fluency is a plus for global collaboration.
• Foundational knowledge of analog and digital circuits, power electronics, and measurement techniques.

Responsibilities

• Support design and development of electrical subsystems including power electronics, control circuitry, and high-voltage systems.
• Perform circuit analysis, schematic design, and PCB layout reviews with guidance.
• Develop and execute electrical test plans, troubleshoot, perform failure analysis, and support design verification.

Skills

Power electronics

Circuit analysis

Schematic capture

PCB design

Lab measurement

Hands-on assembly

Troubleshooting

Education

Bachelor’s or Master’s in Electrical Engineering

Equivalent working experience

Tools

Oscilloscopes

Digital multimeters

Power supplies

Job description

Position Summary

The Junior Electrical Engineer supports the design and development of electrical subsystems for the MEVION S250 proton therapy platform. Working as part of a multidisciplinary and global engineering team, this role contributes to electrical design, prototyping, testing, troubleshooting, and product improvements throughout the product lifecycle. The position provides an opportunity to develop broad hands-on engineering experience while contributing to the performance, safety, and reliability of complex medical equipment. This role works closely with teams in both the United States and China and requires strong English communication skills and fluency in Mandarin Chinese.

Position Summary

The Junior Electrical Engineer supports the design and development of electrical subsystems for the MEVION S250 proton therapy platform. Working as part of a multidisciplinary and global engineering team, this role contributes to electrical design, prototyping, testing, troubleshooting, and product improvements throughout the product lifecycle. The position provides an opportunity to develop broad hands-on engineering experience while contributing to the performance, safety, and reliability of complex medical equipment. This role works closely with teams in both the United States and China and requires strong English communication skills and fluency in Mandarin Chinese.

Essential Functions

• Supports the design and development of electrical subsystems, including power electronics, control circuitry, and high-voltage systems.
• Performs circuit analysis, schematic design, and review of PCB layouts with guidance from more experienced engineers as needed.
• Develops and executes electrical system test plans, troubleshooting activities, failure analysis, and design verification testing.
• Authors and maintains electrical design documentation, including schematics, BOMs, test documentation, and engineering change orders.
• Participates in design reviews and applies established electrical design methods, standards, and best practices.
• Collaborates with mechanical, software, physics, manufacturing, and service teams in the United States and China to support electrical subsystem integration and product improvements
• Troubleshoots and helps resolve electrical issues during development, manufacturing, commissioning, and field operation, including hands-on inspection, measurement, repair, and modification of electrical assemblies.
• Supports compliance of electrical designs with applicable safety and EMC requirements, including IEC 60601 where applicable.
• Performs hands-on electrical assembly and lab work, including cable routing, cable and harness fabrication, soldering, connector assembly, equipment installation, and other prototype or test support activities as needed.
• Builds technical knowledge of Mevion products and develops increasing ownership of electrical design tasks and subsystems over time.

Required Education, Training, And Experience

• Bachelor’s or Master’s degree in Electrical Engineering or equivalent working experience. Recent and soon-to-be graduates are encouraged to apply.
• Professional working proficiency in English and fluency in Mandarin are required for this position.
• Foundational knowledge of electrical engineering principles, including analog and digital circuits, power electronics, and electrical measurement techniques.
• Academic, internship, project, or professional experience with schematic capture, circuit design, PCB design, testing, or troubleshooting.
• Familiarity with electrical test equipment such as oscilloscopes, digital multimeters, power supplies, and other common lab instrumentation.
• Ability and willingness to perform hands-on electrical work, including soldering, cable and harness assembly, connector termination, equipment installation, and troubleshooting.
• Ability to read and understand electrical schematics, wiring diagrams, technical specifications, and engineering documentation.
• Strong problem-solving skills and willingness to learn new systems, tools, and technologies.
• Ability to work effectively in a multidisciplinary engineering environment and transition between design, test, troubleshooting, and hands-on support activities.
• Willingness to travel as needed (