Principal Electrical Engineer

EnerSys Delaware Inc. • Town of Smithtown, NY

2d • $120,000 - $150,000

About The Position

The Principal Electrical Engineer at Bren-Tronics, part of EnerSys, leads the technical execution of major engineering programs and serves as a recognized expert in battery system development. The role focuses on power electronics, battery protection systems, embedded controls, and compliance with military standards. The engineer designs electrical circuits and battery systems, supports qualification testing, collaborates across engineering and manufacturing teams, provides technical guidance, and supports bids and proposals.

Requirements

• Bachelor's degree in Electrical Engineering.
• 10 or more years of experience in electrical design, power systems, or defense-related products.
• Strong knowledge of lithium-ion and similar battery technologies, including system safety and protection designs.
• Experience with battery systems, power electronics, and low-EMI circuit design.
• Proficiency with electrical design software tools.
• Experience integrating electronics with microcontrollers and communication protocols such as CAN or serial communications.
• Hands-on experience testing, troubleshooting, and qualifying electronic systems.
• Strong commitment to quality, reliability, and technical excellence.

Nice To Haves

• Master's degree.

Responsibilities

• Design and develop electrical circuits for batteries, chargers, and rechargeable battery systems.
• Create electrical schematics, specifications, and technical documentation.
• Design and integrate battery monitoring and protection systems.
• Analyze electrical performance, thermal management, EMI, and reliability.
• Use engineering tools for simulation, modeling, and analysis of electrical designs.
• Support environmental and electrical qualification testing in accordance with military and defense standards.
• Work with mechanical, software, systems, and manufacturing teams throughout the development cycle.
• Participate in technical reviews and risk assessments for new products.
• Provide technical support to Sales and Marketing for bids and proposals.
• Prepare documentation for testing, production, and customer requirements.
• Provide technical guidance on complex engineering initiatives.
• Support the development of engineering standards and best practices.

Benefits

• 3+ weeks of paid time off and 11 paid holidays.
• Medical, dental, and vision coverage for employees and dependents at a discounted rate.
• Life insurance.
• Short-term disability.
• Educational reimbursement.
• Flexible spending accounts.
• Employee stock purchase plan.
• 401(k) matching at 100% of a 6% contribution level.
• Ongoing training and career development.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal