Senior Embedded Software Engineer, R&D

At Sunlight Group, we are pioneering the future of energy storage for industrial and advanced technology applications, driven by a genuine passion for performance and continuous improvement. We operate with a deep awareness of our environmental impact, fostering a culture of openness and respect in all our interactions. With a strong customer focus, we relentlessly leverage data and insights to develop innovative solutions that empower our clients and enhance our shared ecosystem. Embracing an entrepreneurial spirit, we cultivate an agile and collaborative environment where our people are inspired through open communication, continuous learning, and the opportunity to unlock their full potential.

Our Vision: Transforming Energy Storage Solutions To Power A Sustainable Tomorrow.

Our Mission: We deliver cutting-edge, high quality energy storage solutions for industrial and advanced technology applications, driving an all-electric future.

We're looking to hire a Senior Embedded Software Engineer for our BMS software team. The role will focus in developing test methods, designing and executing experiments, and prototyping new innovations to improve existing or delivering new lithium battery products that meet customer requirements and company high standards. The position offers the opportunity to contribute directly to the development of the battery management system and to be part of a team committed to innovation and excellence.

Key activities and responsibilities of the role include:

• Perform requirement analysis to gather, clarify, and document software needs for future products
• Develop detailed software designs, including architecture, module specifications, and interfaces
• Implement software components and features in accordance with design specifications and coding guidelines
• Execute software testing activities, including unit, integration, and system testing, to ensure functionality and quality
• Analyze, enhance, and extend existing software modules based on customer requirements
• Diagnose and fix defects in existing software components to improve stability and performance
• Troubleshoot and identify issues on operational battery systems, ensuring rapid root‑cause analysis and corrective action
• Collaborate in a cross‑functional engineering environment, working closely with hardware, systems, and testing teams
• Conduct code reviews to improve code quality and ensure compliance with certification and industry standards

Requirements

• Bachelor’s Degree in Electrical Engineering or Information Sciences and Technology
• At least 5 years programming experience in C language
• Minimum 3 years' experience on microcontroller firmware development
• Experience of communication protocols (i2C, SPI, USB, UART) and CAN bus networks
• Ability to read and understand electrical schematics, datasheets, and wiring diagrams
• Familiar with revision control systems (e.g. Git, Svn, Perforce, PTC Integrity)
• Familiar with configuration and requirement management tools (eg: JIRA, Confluence)
• Familiar with integrated development toolchains (IAR, KDbg, MS Visual Studio, MPLAB, VS code etc)
• Fluent written and verbal communication skills in English
• Good communication skills
• Willingness to travel occasionally worldwide

Desired qualifications:

• Experience in one of the following communication protocols (Modbus, Ethernet, CAN-FD, CANopen) will be considered as an asset
• Programming experience with C++ will be considered as an asset
• Embedded Systems Knowledge on Energy Management Systems will be considered as a significant asset
• Development according to MISRA guidelines will be considered as an asset
• Development on regulated environment (eg: IEC61508, ISO 13849, ISO26262) will be considered as a significant asset

Benefits

To start with, we give you the opportunity to thrive in a restless team and grow your potential in an innovative environment. As per your compensation and rewards package, this is a preview:

💸 Competitive salary package and bonus scheme

👩⚕️ Health and life insurance for you and your family

🧘🏻 Employee wellness program & initiatives

📚 Continuous training opportunities

⭐ Clear career paths & a developmental 360° feedback framework

✈️ International mobility opportunities