Battery Module Engineer

Fluence (Nasdaq: FLNC) is a global market leader delivering intelligent energy storage and optimization software for renewables and storage. Our solutions and operational services are helping to create a more resilient grid and unlock the full potential of renewable portfolios. With gigawatts of successful implementations across nearly 50 markets, we are transforming the way we power our world for a more sustainable future. For more information, please visit fluenceenergy.com.

Job Description:

Role Summary
The Battery Module Engineer is responsible for the design integration, configuration management, and validation of battery modules used in large-scale energy storage systems. This role owns module BOMs and PLM data, defines electrical and thermal interfaces, and supports interface standardization across platforms. The position works closely with thermal, systems, supply chain, manufacturing, and external test partners to deliver reliable, compliant, and scalable battery module solutions.

Key Responsibilities

• Own battery module BOMs and configuration data across development, qualification, and production using PLM systems.
• Execute engineering change management (ECR/ECO) activities and ensure traceability across module variants.
• Define and document module operating parameters in collaboration with thermal engineering, including temperature limits and cooling requirements.
• Design and define electrical interfaces from battery module to battery pod, including power and signal connections, connector selection, pinouts, and current/voltage ratings.
• Define battery module testing requirements and coordinate validation at third-party laboratories, including safety, performance, reliability, and compliance testing.
• Support system-level integration and validation of electrical and thermal interfaces.
• Partner with supply chain and sourcing teams to standardize mechanical and electrical interfaces across module platforms.
• Drive component and interface commonality to reduce cost, complexity, and supply risk.
• Support supplier technical reviews related to interfaces, manufacturability, and quality.
• Contribute to module design guidelines, documentation, and best practices.

Required Qualifications

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Energy Systems, or a related field.
• 3–6 years of experience in battery module, battery pack, or energy storage system engineering.
• Hands-on experience with PLM systems (e.g., Windchill, SolidWorks).
• Solid understanding of high-power electrical interfaces and cross-functional product development.

Preferred Qualifications

• Experience with lithium-ion battery modules for stationary or automotive applications.
• Familiarity with battery thermal management concepts.
• Experience working with third-party test labs and certification programs (UL, IEC, ISO).
• Exposure to interface standardization or platform-based product development.

Key Competencies

• Systems thinking
• Technical ownership
• Cross-functional collaboration
• Cost-and-quality mindset

Our Culture

At Fluence, our culture is the foundation that drives our ambitious growth strategy and fuels our mission to transform the future of energy. Our core cultural pillars empower us to innovate, collaborate, and lead with purpose, ensuring we continue to deliver unparalleled value to our customers and the world.

Unleash Voices

We believe every voice matters. We encourage openness, active listening, and decisive action to create a culture where everyone has the opportunity to contribute to our success. We foster an environment where diverse perspectives are heard and valued, driving innovation and progress.

Customer Fluent

Our customers are at the heart of everything we do. We’re committed to delivering exceptional value that exceeds expectations by understanding our customers' needs and adapting swiftly to meet them. Our deep focus on customer satisfaction drives us to continuously improve and innovate.

Infinite Impact

We are committed to creating the impossible. We push boundaries to deliver sustainable, game-changing solutions that shape a brighter, more energy-efficient future for all. Our team is passionate about making a lasting impact that will resonate for generations to come.

All In

We are all in for growth. Our teams are relentlessly focused on identifying and seizing opportunities that propel us forward. We embrace an ownership mindset, pushing ourselves and each other to accelerate progress and create lasting success.