Demo

Senior Electrical Engineer

EnerSys
Commack, NY Full Time
POSTED ON 1/2/2026
AVAILABLE BEFORE 3/1/2026

EnerSys is a global leader in stored energy solutions for industrial applications. We have over thirty manufacturing and assembly plants worldwide servicing over 10,000 customers in more than 100 countries. Worldwide headquarters are located in Reading, PA, USA with regional headquarters in Europe and Asia. We complement our extensive line of Motive Power and Energy Systems with a full range of integrated services and systems. With sales and service locations throughout the world, and over 100 years of battery experience, EnerSys is the power/full solution for stored DC power products.

Job Purpose

The Senior Electrical Engineer lead the design, development, testing, and support of battery systems for defense applications. The successful candidate will have strong expertise in power electronics, battery protection systems, embedded controls, and compliance with military standards. This position is essential to delivering reliable energy solutions for critical defense missions.

Essential 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.

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We use artificial intelligence to screen, assess and select applicants for open positions, including for the purposes of reviewing and ranking application materials and scoring answers to application questions. Accordingly, decisions about your application and eligibility for employment with EnerSys may be made based exclusively on the automated processing of the personal information that you submit in your application materials.


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Salary.com Estimation for Senior Electrical Engineer in Commack, NY
$169,016 to $198,081
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