Senior Electrical Engineer

Enersys; Commack (NY); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Generous Time Off

Comprehensive Benefits

Financial & Career Growth

401(k) Matching

Innovative Culture

Job summary

EnerSys seeks an experienced electrical engineer in the United States to lead the architecture and development of battery and charger systems. You will design high‑voltage battery solutions and collaborate across hardware, software, and manufacturing teams to ensure safety and reliability from concept through production.

The ideal candidate has 10+ years in electrical design with a degree in Electrical Engineering and strong hands‑on experience with testing, CAN/serial communication, and EMI

Qualifications

• Bachelor's degree in Electrical Engineering; Master's preferred.
• 10+ years in electrical design, power systems, or defense-related products.
• Strong knowledge of lithium-ion and similar battery technologies, including safety and protection.
• Experience with high-voltage battery systems and energy storage designs; low EMI design.

Responsibilities

• Lead architecture and development of electrical circuits for batteries, chargers and rechargeable battery-based systems.
• Create detailed electrical schematics and specifications for batteries, chargers, and related electronics.
• Design and integrate battery monitoring and protection systems to ensure safe operation.
• 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 per military/defense standards.
• Work with mechanical, software, systems, and manufacturing teams throughout development.
• 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.
• Mentor junior engineers and support team development.

Skills

Electrical design

Power systems

Defense-related products

High voltage systems

EMI design

CAN/Serial communications

Testing & troubleshooting

Documentation

Mentorship

Education

Bachelor's degree in Electrical Engineering

Master's degree preferred

Tools

Electrical design software tools

Job description

What We Offer:

• Generous Time Off – 3+ weeks of paid time off, including PTO and paid sick leave, 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.

Essentials Duties and Responsibilities

• Play lead role in the architecture and development of electrical circuits for batteries, chargers and rechargeable battery based systems.
• Create detailed electrical schematics and specifications for batteries, chargers, and related electronics.
• Design and integrate battery monitoring and protection systems to ensure safe and reliable operation.
• Perform system analysis related to electrical performance, thermal management, electromagnetic interference, and system 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
• Mentor junior engineers and support team development.

Qualifications

• Bachelor's degree in Electrical Engineering, A Master's degree is 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 working with high-voltage battery systems and energy storage designs, including low EMI circuit design.
• Proficiency with electrical design software tools.
• Experience integrating electronics with microcontrollers and communication networks such as Controller Area Network (CAN) or serial communications.
• Hands-on experience with testing, troubleshooting, and qualifying electronic systems.
• Detail-oriented with a strong commitment to product quality and reliability.
• Creative and adaptable approach to engineering challenges.

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.

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