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Staff Electrical Engineer
Job Location:
Job Location:
Milpitas, CA - USA
Yearly Salary:
USD 130000 - 220000
Yearly Salary:
Posted:
29 September 2026 (Yesterday)
Posted:
Application Deadline:
27 December 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
About Commonwealth Fusion Systems:
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.
Combining decades of research top talent and new technologies were designing and building commercially viable fusion power plants. And were working with policymakers suppliers and many others to build the energy industry of the future.
Were in the best position to make it happen. Since 2018 weve raised $4 billion of capital making us the largest and leading fusion company in the world.
Now were looking for more thinkers doers builders and makers to join us. People wholl bring new perspectives solve tough problems and thrive as part of a team.
If thats you and this role fits we want to hear from you.
Join the power movement as a Staff Electrical Engineer
We are looking for a Staff Electrical Engineer to serve as the lead electrical hardware authority for our next-generation R&D and processing this role you will own the end-to-end electrical design of complex machineryfocusing heavily on 480VAC power distribution electrical safety signal integrity sensor instrumentation and control panel architecture.
You will bridge the gap between high-power electrical infrastructure and machine-level controls. While your primary mastery lies in electrical design schematic capture component selection and shop-floor commissioning your working knowledge of PLCs fieldbuses and industrial automation will allow you to seamlessly bring first-of-a-kind hardware to life alongside our software and mechanical teams.
What youll do:
- Lead Electrical System Architecture: Architect complete power and electrical hardware platforms for complex R&D tools managing power distribution low-voltage DC systems cable harness design and power conditioning. Implement (ANSI/RIA15.06/OSHA compliant) control reliable safety systems for safeguarding industrial equipment
- Schematic Design & Drafting: Create modify and approve comprehensive electrical schematic packages (one-lines multi-line I/O diagrams panel layouts cable schedules) in AutoCAD Electrical per NFPA 79 NEC and UL 508A standards
- Instrumentation & Sensor Integration: Sizing specify and integrate power supplies circuit protection VFDs servo drives safety relays and precision sensors (thermocouples pressure transducers vacuum gauges flow meters)
- Signal Integrity & EMI/EMC Mitigation: Design robust grounding shielding and isolation schemes to protect sensitive analog/digital measurement signals in high-power electrically noisy and high-magnetic field environments
- Hardwired & Control Safety Systems: Implement ANSI/RIA 15.06 and OSHA-compliant electrical safety circuits interlocks light curtains and emergency stop systems to protect personnel and high-hazard industrial hardware
- Hardware Commissioning & I/O Checkout: Lead hands-on electrical testing ring-out power-up and I/O validation on the tool floor using multimeters oscilloscopes and basic PLC diagnostics
- Controls & Software Support: Assist controls engineers in configuring EtherCAT/industrial fieldbuses verifying drive parameters and debugging basic PLC code (Structured Text/TwinCAT) or HMI screens during tool bring-up
- Vendor & Panel Shop Direction: Manage external panel build shops and electrical contractors; specify panel construction details manage component BOMs and lead Factory Acceptance Testing (FAT)
What were looking for:
- Education: Bachelors degree in Electrical Engineering (BSEE) or Mechatronics Engineering required (Masters preferred)
- Experience: 10 years of dedicated electrical engineering experience designing power distribution electrical cabinets and hardware architectures for complex industrial or R&D capital equipment
- Electrical Design Expertise: Expert proficiency with AutoCAD Electrical for full schematic generation panel layouts terminal block design and wire harness documentation
- Power & Codes Mastery: Deep technical understanding of 480VAC 3-phase systems transformer sizing short-circuit current ratings (SCCR) arc flash safety and industry codes (NFPA 79 NEC/NFPA 70 UL 508A)
- Grounding & Noise Control: Demonstrated experience solving EMI/EMC issues noise coupling and grounding challenges in complex electromechanical tools
- Controls Background (Secondary Skillset): Working knowledge of PLC hardware architectures (Beckhoff Allen-Bradley or Siemens) industrial fieldbuses (EtherCAT EtherNet/IP) and safety PLCs (TwinSAFE)
- Diagnostic & Commissioning Skills: High proficiency in hands-on hardware troubleshooting field wiring and electrical fault isolation on the machine floor
Bonus points for:
- Semiconductor & Vacuum Equipment: Experience designing electrical hardware for semiconductor tools high-vacuum systems or high-temperature processing equipment.
- High-Current / High-Power Systems: Experience with high-current DC power supplies magnetics or cryogenic instrumentation.
- PLC Programming Capability: Ability to write and debug IEC 61131-3 Structured Text code or Python scripts for hardware testbeds.
- SCADA/HMI Familiarity: Exposure to Inductive Automation Ignition or custom operational interfaces.
Must-have requirements:
- Ability to lift up to 25 lbs occasionally
- Perform activities such as stooping climbing standing sitting for extended periods of time
- Willingness to travel or work required nights/weekends/on-call occasionally
- Dedication to safety to mitigate industrial hazards that may include heat cold noise fumes strong magnets lead (Pb) high voltage high current pressure systems and cryogenics
$130000 - $220000 a year
Salary range for this full-time position equity benefits.The actual salary will depend on level location qualifications and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations.
Benefits include:
Competitive compensation with equity
13 Company-wide Holidays
Flexible vacation days
10 sick days
Generous parental leave policy
Health dental and vision insurance
401(k) with employer matching
Professional growth opportunities
Team-building activities
#LI-Onsite
At CFS we excel in fast-paced environments driven by our values of integrity execution impact and self-critique. As we grow were eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.
We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally regardless of race color national origin ancestry citizenship status protected veteran status religion physical or mental disability marital status sex sexual orientation gender identity or expression age or any other basis protected by law.
This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively Export Control Laws). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.
Required Experience:
Staff IC
