As an Engineering Intern at Moonwatt, you will work at the intersection of embedded software electronics design, and electrical engineering. Among others, you will work on the development, testing and integration of our battery management system.

This is a hands-on internship where you will be contributing directly alongside senior engineers, develop and test prototypes, and build our production firmware.

The internship is designed with a strong intention to convert to full-time for high performers.

What You Will Work On

Embedded Software Development

• Write cutting edge software in C/C++, focusing on high performance and low latency, for our Battery Management Unit (BMU) and Cell Monitoring Unit (CMU) boards
• Help scale automated testing by creating Software-In-the-Loop and Hardware-In-the-Loop infrastructure, integrating validation coverage for a robust CI/CD process
• Participate on the design and implementation of the Software Over-The-Air Updates process, focusing on robustness and cybersecurity of the product
• Create new communication and control interfaces (Ethernet, CAN, RS485) that help integrate the software ecosystem across the different components
• Collaborate with data engineering teams to analyze system logs and develop diagnostic and fault-detection firmware logic

Electronics & Hardware Support

• Assist in PCB schematic design reviews, hardware bring-up, and troubleshooting for BMS electronics
• Support validation and testing of low-voltage and high-voltage electrical architectures within battery systems

System Integration & Testing

• Assist in integration and assembly of battery packs and BMS electronics within prototype enclosures
• Support functional, safety, and thermal testing activities for BMS firmware verification and validation
• Interface with suppliers and manufacturing partners to support component testing, quality control, and documentation

Must Have

• Currently enrolled in a Bachelor’s or Master’s degree program in Electrical Engineering, Embedded Systems, Electronics, Mechatronics, Robotics, or related technical field
• Strong proficiency in embedded C and C++ programming with hands-on experience in microcontroller firmware development
• Basic familiarity with PCB schematics, datasheets, hardware debugging tools (oscilloscopes, logic analyzers)
• Knowledge of battery systems fundamentals and basic power electronics concepts
• Hands-on, test-driven approach to embedded system design, debugging, and validation
• Curious, precise, and eager to learn within a highly collaborative, multidisciplinary engineering environment
• Minimum internship duration of 6 months (end-of-study internship preferably)

Nice to Have

• Previous experience in students' organizations like Formula Student, robotics organizations or electric boat competition will be highly valued
• Experience with BMS firmware development or exposure to battery management principles
• Familiarity with PCB design tools such as Altium Designer or KiCAD
• Basic scripting skills (e.g., Python) for test automation or data analysis
• Previous hardware bring-up experience including component-level testing and validation
• Interest or background in renewable energy, energy storage, or electric vehicles (EV) domains
• Awareness of embedded safety standards and lab safety practices

• An engineering internship with real responsibilities, not administrative tasks
• Exposure to multiple disciplines beyond your core skillset
• Direct mentorship from senior engineers and who built large-scale energy systems before
• A learning environment where you will participate in decisions, not just observe
• A path to full-time conversion for high-performing interns
• A fast, mission-driven environment where engineering decisions matter