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Senior Power Electronic Engineer

LiquidPiston

Suffield, CT

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JOB DETAILS
JOB TYPE
Full-time
SKILLS
Aerospace and Defense, Applications Security, C Programming Language, C++ Programming Language, Communications Protocols, Computer Firmware, Cross-Functional, Dental Insurance, Documentation Design, Electrical Engineering, Electricity, Electromagnetic Compatibility, Electromagnetic Interference (EMI), Electromagnetic Interference Testing, Electronic Engineering, Electronics, Health Plan, Leadership, Mentoring, Microsoft Excel, Microsoft Office, Microsoft PowerPoint, Microsoft Word, Military, Military/DoD Standards, Motor Control Systems, Organizational Skills, Power Engineering, Printed Circuit Board (PCB) Layout, Printed Circuit Board Design, Problem Solving Skills, Product Lifecycle, Project/Program Management, Propulsion, Regulations, Risk Analysis, System Integration (SI), Systems Engineering, Technical Presentation, Testing, Topology, United States Department of Defense (DoD), Vendor/Supplier Relations, Vision Plan
LOCATION
Suffield, CT
POSTED
30+ days ago
LiquidPiston
This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.​​​​​​​
About LiquidPiston
LiquidPiston is revolutionizing combustion engine technology through the development of advanced rotary engines and integrated hybrid power systems. Our innovative designs aim to dramatically improve efficiency, reduce size and weight, and enable cleaner, more compact power solutions across defense, aerospace, and commercial sectors.
Position Overview
We are seeking a highly skilled and motivated Senior Power Electronics Engineer to join our growing Electrical Engineering team. In this role, you will lead and coordinate the work of a small engineering team while developing advanced power conversion systems for hybrid power solutions, including clean-sheet designs for inverters, converters, and motor control systems. You will play a key role in supporting power electronics integration for next-generation generator sets, hybrid powertrains, and electrified propulsion systems.
Key Responsibilities
  • Lead clean-sheet design and development of AC/DC and DC/DC power converters, including bidirectional inverters and battery chargers.
  • Perform magnetics and filter design, system-level integration, and EMI hardening for military-grade systems.
  • Design and implement high-speed switching power electronics with 4-quadrant motor control and precise AC-DC regulation.
  • Conduct EMI/EMC testing, troubleshooting, and compliance verification to DoD and MIL-STD requirements.
  • Collaborate with mechanical, firmware, and systems engineers to deliver compact, efficient, and ruggedized power solutions.
  • Document designs and results using Microsoft Office tools and contribute to technical reports and presentations.
  • Interface with vendors, customers, and multidisciplinary project teams throughout the product lifecycle.
Required Qualifications
  • Bachelor’s or Master’s degree in Electrical Engineering, Power Electronics, or related field.
  • Demonstrated expertise in:
    • Bidirectional inverters, DC/DC converter topologies, and magnetics/filter design
    • EMI hardening and compliance testing for defense applications
    • High-speed switching and motor control (4-quadrant)
  • Familiarity with AC-DC regulation principles and practical circuit implementation.
  • Proficiency with MS Office (Word, Excel, PowerPoint).
  • Must be a U.S. Person.
Preferred Qualifications
  • Experience with weight- and efficiency-critical designs (e.g., aerospace, defense, UAVs).
  • Background in hybrid power systems, gensets, and MIL-STD compliant systems (e.g., AMMPS).
  • Knowledge of CANBUS/MODBUS communication protocols.
  • Hands-on experience with PCB layout and design tools such as EAGLE or Altium.
  • Firmware development experience (C/C++ preferred).
  • Project management skills with experience coordinating across teams and with external stakeholders.
Benefits
  • Flexible PTO to encourage work-life balance and personal well-being
  • Comprehensive healthcare coverage: medical, dental, and vision plans
  • Equity participation: RSUs for all permanent employees
  • 401(k) with match: 100% up to 3%, plus 50% match for 3–5% range
  • Growth opportunities: Mentorship, training, and leadership development
Our Culture
At LiquidPiston, we challenge convention and solve hard problems. We move fast, think boldly, and iterate quickly. Our team thrives on collaboration, creativity, and resilience. We take calculated risks and believe that every setback is a steppingstone toward breakthrough innovation.

Equal Opportunity Employer
LiquidPiston, Inc. is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment regardless of race, color, religion, gender, sexual orientation, gender identity, national origin, or veteran status, and will not be discriminated against on the basis of disability.

All offers of employment at LiquidPiston are contingent upon the successful completion of a pre-employment background check and drug screening. 

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LiquidPiston

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