Overview
The Princeton Plasma Physics Laboratory currently uses two (2) large, stored energy, Motor-Generators, each generator rated at 450 mega-volt amperes (MVA), to supply power to the various experimental loads in support of NSTX-U operations. Each motor-generator is driven by a 15,000 HP wound-rotor induction motor rated at 13.8 KV. The motor-generator engineer ensures the successful operation, performance and maintenance of the motor-generator (MG) sets and associated systems.
A U.S. Department of Energy National Laboratory managed by Princeton University, the Princeton Plasma Physics Laboratory (PPPL) is tackling the world’s toughest science and technology challenges using plasma, the fourth state of matter. With more than 70 years of history, PPPL is a leader in the science and engineering behind the development of fusion energy, a potentially limitless energy source. PPPL is also using its expertise to advance research in the areas of microelectronics, quantum sensors and devices, and sustainability sciences. Whether it be through science, engineering, technology or professional services, every team member has an opportunity to contribute to our mission and vision. Come join us!
Responsibilities
Core Duties:
- Plans and implements routine maintenance, testing and repair activities for the MG systems, consisting of major electrical and mechanical systems (60%):
- Electrical – motor-generators, cyclo-converters, liquid rheostats, excitation systems, associated medium voltage switchgear, transformers, and protection, monitoring and control equipment.
- Mechanical – vibration control systems, guide bearings, thrust bearings, high pressure lube oil systems, heat exchangers, cooling water systems, brake/jack system, CO2 fire suppression systems, large rotational mechanics, air compressors
- Directs and performs troubleshooting, as required, on the MG systems (10%).
- Obtains and maintains qualification as an operator of the motor-generator system (10%).
- Performs pre-operational performance checks of the MG systems to ensure readiness for operations (10%).
- Provides recommendations for improvements and upgrades to the system (5%).
- Acts as PTR (Princeton Technical Representative) for Motor-Generator maintenance and repair tasks involving external contractors (5%).
Qualifications
Education and Experience:
- BS Electrical or Mechanical Engineering. MS Electrical or Mechanical Engineering preferred.
- Minimum 7 years of relevant experience.
- Experience in the maintenance, testing and operation of rotating machinery for power plants and/or cycloconverter drives.
- Experience in the operation, maintenance and testing of power systems components such as switchgear, circuit breakers, transformers and protective relaying is desirable.
Knowledge, Skills and Abilities:
- Technical writing ability for the preparation and review of technical procedures, statements of work, etc.
- Knowledge of OSHA regulations including the control of hazardous energy (lockout/tagout).
- Good interpersonal skills for interacting within a team of engineers and technicians.
Physical Requirements:
- Must be able to work in awkward positions, confined spaces, and lift and/or move objects up to 50lbs.
Working Conditions:
- Onsite position (Monday – Friday); 7-7:30 – 3-3:30 PM but there is some flexibility in start and end times, We are not supporting external visas for this position. If someone is a US Greencard holder, we can consider. We may support relocation for the right candidate.
Princeton University is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability status, protected veteran status, or any other characteristic protected by law.
The University considers factors such as (but not limited to) scope and responsibilities of the position, candidate's qualifications, work experience, education/training, key skills, market, collective bargaining agreements as applicable, and organizational considerations when extending an offer. The posted salary range represents the University's good faith and reasonable estimate for a full-time position; salaries for part-time positions are pro-rated accordingly.
If the salary range on the posted position shows an hourly rate, this is the baseline; the actual hourly rate may be higher, depending on the position and factors listed above.
The University also offers a comprehensive benefit program to eligible employees. Please see this link for more information.
Please be aware that the Department of Energy (DOE) prohibits DOE employees and contractors from participation in certain foreign government talent recruitment programs. All PPPL employees are required to disclose any participation in a foreign government talent recruitment program and may be required to withdraw from such programs to remain employed under the DOE Contract.
Standard Weekly Hours
40.00
Eligible for Overtime
No
Benefits Eligible
Yes
Probationary Period
180 days
Essential Services Personnel
No
Physical Capacity Exam Required
No
Valid Driver's License Required
No
Salary Range
$111,600 to $178,200
Posted 2026-09-09