Senior Software Engineer

East Penn Manufacturing Company, Inc.; Ann Arbor (MI); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Group health insurance

3% employer retirement contribution

Paid time off

Employee assistance program

Fitness discounts

Promotional opportunities

Job summary

Navitas Systems, in partnership with East Penn, is seeking a Senior Software Engineer to support and improve our Battery Management Systems. You will join a small multidisciplinary engineering team and influence architecture from concept to production, collaborating with Systems, Hardware, Validation, Manufacturing, and Quality teams.

The ideal candidate has strong embedded C/C++ background, experience with CAN communication protocols, and a track record delivering safety-critical embedded

Qualifications

• Bachelor's degree in Electrical Engineering, Computer Engineering, Controls Engineering, or related discipline.
• 7+ years developing embedded software or controls for production products using C/C++.
• Experience owning software through multiple stages of the V model, including requirements, design, implementation, integration, and verification.
• Experience developing and debugging software that directly interfaces with electronics, sensors, communications, and control hardware.
• BMS, battery, automotive, power electronics, industrial controls, or similar safety critical embedded product experience.

Responsibilities

• Develop and support BMS software from requirements and architecture through integration, verification, and production release.
• Develop BMS functions including protection, diagnostics, communications, cell monitoring, balancing, contactor control, and battery state estimation.
• Own complex BMS issues that cross software, electronics, communications, and battery system boundaries, driving them through root cause and resolution.
• Work directly with Systems, Hardware, Validation, Manufacturing, Quality, and Field Application teams to deliver and support complete battery products.
• Define verification methods and perform hands on integration and testing using BMS hardware, battery systems, and engineering test equipment.
• Provide technical direction and oversight for software activities performed by external engineering partners.

Skills

Embedded C/C++

CAN (J1939/UDS)

V-model development

Schematic reading

Hardware/software interface debugging

SOC/SOH concepts

Education

Bachelor's degree in Electrical/Computer/Controls Engineering

Tools

CANalyzer

CANoe

MATLAB/Simulink

Job description

Get to know East Penn!

Navitas Systems LLC, a leader in comprehensive energy storage solutions, was formed in 2011 with the merger of MicroSun Innovative Energy Storage Solutions and MicroSun Electronics, and the acquisition of lithium battery company A123 Systems’ Government Solutions Group. In 2019, East Penn Manufacturing, one of the world’s leading battery manufacturers, acquired majority interest in Navitas Systems. In SEVEN remarkable decades, East Penn has grown from a one-room shop with a product line of five automotive batteries to one of the world’s leading battery manufacturers with over 10,500 full-time employees, 515 product designs, operations around the world, and hundreds of awards for industry excellence.

At our Navitas facilities we engage in the research, design, development, and manufacture of advanced lithium cells and energy storage products and systems for both commercial and industrial customers. We invest in our people, they are and always will be the heart of this company. Are you ready to join a family-owned enterprise committed to honoring the contributions of everyone? Then Navitas is the right place for you.

Overview

Navitas Systems is looking for a self-motivated Senior Software Engineer to support and improve our existing Battery Management Systems product line while also developing our next generation platform. This is an opportunity to join at the foundational stage of development and have a direct impact on the architecture, capabilities, and engineering practices that will shape our future products.

As part of a small multidisciplinary engineering team, this position will contribute across the product development V-model and take ownership of challenging technical problems from concept through production. The ideal candidate has strong electronics fundamentals, hands‑on product experience, and the ability to work effectively across engineering disciplines with limited direction.

Responsibilities

• Develop and support BMS software from requirements and architecture through integration, verification, and production release.
• Develop BMS functions including protection, diagnostics, communications, cell monitoring, balancing, contactor control, and battery state estimation.
• Own complex BMS issues that cross software, electronics, communications, and battery system boundaries, driving them through root cause and resolution.
• Work directly with Systems, Hardware, Validation, Manufacturing, Quality, and Field Application teams to deliver and support complete battery products.
• Define verification methods and perform hands on integration and testing using BMS hardware, battery systems, and engineering test equipment.
• Provide technical direction and oversight for software activities performed by external engineering partners.

Qualifications

Education and Experience

• Bachelor's degree in Electrical Engineering, Computer Engineering, Controls Engineering, or related discipline.
• 7+ years developing embedded software or controls for production products using C/C++.
• Experience owning software through multiple stages of the V model, including requirements, design, implementation, integration, and verification.
• Experience developing and debugging software that directly interfaces with electronics, sensors, communications, and control hardware.
• BMS, battery, automotive, power electronics, industrial controls, or similar safety critical embedded product experience.

Knowledge, Skills and Abilities

• Strong embedded C/C++ development, debugging, and real time software experience.
• Experience with CAN communications and protocols such as J1939 and UDS using tools such as CANalyzer or CANoe.
• Ability to read electrical schematics and troubleshoot interactions between software and hardware.
• Working knowledge of lithium ion battery protection, cell monitoring, balancing, diagnostics, and SOC/SOH concepts.
• Experience with requirements traceability, software architecture, configuration management, and structured verification.
• Demonstrated ability to take an ambiguous technical objective, define the work required, and independently drive it to completion.
• Proven ability to solve problems that cross software, hardware, systems, and test boundaries rather than working only within assigned software tasks.
• Comfortable working in a small engineering team to be both technically hands‑on and accountable for product results.
• Able to communicate technical decisions, risks, and tradeoffs clearly across engineering disciplines.

Preferred Qualifications:

• Direct lithium ion BMS development experience from concept through production.
• MATLAB/Simulink, model based development, or production code generation experience.
• Functional safety experience with ISO-26262 or IEC 61508.
• ASPICE or V-model comparable structured product development experience.
• HIL, SIL, MIL, or automated embedded system verification experience.

Disclaimer: This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice

East Penn Benefits

Navitas/East Penn offers excellent benefits:

• Competitive compensation
• Group health insurance that includes high quality medical, dental, vision and prescription coverage with a low employee premium
• Retirement Savings Plan with company match and a 3% employer contribution
• Paid company holidays and Paid Time Off (PTO)
• Employee assistance program
• Fitness Discounts
• Promotional opportunities

At Navitas/East Penn, our employees are our culture; our employees will always be the heart of the company. We are a private, family‑owned enterprise committed to cultivating an atmosphere that honors the contributions of everyone. We want our employees to have long‑term careers, and many do. More than 38% of our workforce has over a decade of service. Our open‑door management policy, comprehensive benefits package, employee appreciation and recognition events, and career advancement opportunities are just some of the ways we show our employees how incredibly valued they are.

EOE/VEVRAA