Principal Electrical Engineer

EnerSys; Commack (NY); Remote; USD 120,000 - 150,000; Full time

Benefits offered by this job

Generous time off

Comprehensive benefits

401(k) matching

Educational reimbursement

Employee stock purchase plan

Flexible spending accounts

Job summary

EnerSys Advanced Systems seeks a Principal Electrical Engineer in Commack, NY, with 10+ years in electrical design and battery systems. The role emphasizes power electronics, protection systems, embedded controls, and compliance with military standards.

It is a home-based position with full-time hours. The successful candidate will lead major engineering programs, drive technical execution, and collaborate across mechanical, software, and manufacturing teams while mentoring others and ensuring

Qualifications

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

Responsibilities

• Design and develop electrical circuits for batteries, chargers, and rechargeable systems.
• Create detailed electrical schematics, specifications, and technical documentation.
• Design and integrate battery monitoring and protection systems.
• Perform system analysis related to electrical performance, thermal, EMI, and reliability.
• Use engineering tools for simulation, modeling, and analysis of electrical designs.
• Support environmental and electrical qualification testing to military/defense standards.
• Collaborate with mechanical, software, systems, and manufacturing teams.
• 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 guidance on complex engineering initiatives.
• Support development of engineering standards and best practices.

Skills

Power electronics

Battery protection

Embedded controls

CAN bus

Circuit design

Troubleshooting

Education

Bachelor's degree in Electrical Engineering

Master's degree preferred

Tools

Electrical design software

Job description

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Job Title: Principal Electrical Engineer

Requisition ID: 13969

Location: Commack, NY, US, 11725

Home-based Position: Yes

Regular/Temporary: Regular

Job Type: Full-Time

Job Description:

EnerSys Advanced Systems (EAS) is a specialized division of EnerSys—a global leader in stored energy solutions for industrial applications. EAS focuses on cutting-edge energy solutions for the aerospace, defense, and medical industries. As we continue to grow, we’re looking for individuals who share a passion for these industries and want to be part of an innovative, dynamic team.

Certain positions at EnerSys Advanced Systems require access to information or technology that is subject to the International Traffic in Arms Regulations (ITAR) and other U.S. government security regulations. Candidates for these positions should be a “U.S. Person” under ITAR (U.S. citizen, lawful permanent resident, or a refugee/asylee) and/or otherwise comply with ITAR requirements for access rights to be considered for a position.

What We Offer:

• Generous Time Off – 3+ weeks of paid time off, plus 11 paid holidays
• Comprehensive Benefits – Medical, dental, and vision coverage for employees and dependents at a discounted rate
• Financial & Career Growth – Life insurance, short-term disability, educational reimbursement, flexible spending accounts, and an employee stock purchase plan
• 401(k) Matching – 100% match at a 6% contribution level
• Innovative Culture – We value excellence, teamwork, and long-term relationships with stakeholders, colleagues, and customers. Through innovative technology and ongoing training, we invest in our employees’ skills and career development.

At EAS, we don’t just build batteries – we power systems and devices that protect not only individual citizens but communities across the world.

If you’re excited about working in an innovative, fast-paced, high-tech environment, where your contributions make a real impact, we’d love to hear from you!

Compensation Range: $120,000 to $150,000
Compensation may vary based on applicant's work experience, education level, skill set.

Learn More About EAS

Job Purpose

The Principal Electrical Engineer at Bren-Tronics, part of EnerSys and a manufacture of advanced portable power solutions, leads the technical execution of major engineering programs and serves as a recognized expert in battery system development. The successful candidate will have expertise in power electronics, battery protection systems, embedded controls, and military standards compliance.

Essential Duties and Responsibilities

• Design and develop electrical circuits for batteries, chargers, and rechargeable battery systems.
• Create detailed electrical schematics, specifications, and technical documentation.
• Design and integrate battery monitoring and protection systems.
• Perform system analysis related to 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 closely 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 clear documentation for testing, production, and customer requirements.
• Provide technical guidance on complex engineering initiatives.
• Support development of engineering standards and best practices.

Qualifications

• Bachelor's degree in Electrical Engineering; Master's degree preferred.
• 10+ 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.

General Job Requirements

• Generic

EnerSys provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

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Nearest Major Market: Long Island
Nearest Secondary Market: New York CIty