BMS Hardware & Mechanical Design Intern (F/M/D) - #45945

Facing the challenges of our time - Help us grow and be more impactful!

Batteries & Energy Storage group based in Neuchâtel.

We are looking for a passionate Battery Management System Hardware & Mechanical Design Intern – starting date by arrangement / 6 months (flexible: 4–8 months).

Your mission

You will join a team of electronics, firmware, and battery engineers to develop and validate an automotive-grade distributed Battery Management System.

Your responsibilities

• Design multi-layer PCBs for the Master and Slave BMS boards, including schematic capture and PCB layout in Altium Designer (or equivalent), following automotive design rules and reliability standards
• Prepare complete manufacturing documentation packages, including Gerber files, BOMs, and assembly drawings, ready for prototype production and supplier handoff
• Design and validate wire harnesses connecting battery cells, Slave modules, and the Master BMS, selecting automotive-grade connectors and verifying electrical integrity through continuity, insulation resistance, and Hi-Pot testing
• Develop ruggedized enclosures for BMS units, creating 3D CAD models and printed prototypes to validate fit, mounting, protection, integration, serviceability, and functionality
• Lead the system from bench-level verification through on-car commissioning, validating BMS performance and integration in a prototype vehicle under real operating conditions
  
  

Your profile

Know-how

• Bachelor's, Master's, or internship student in Electrical Engineering, Electronics, Mechatronics, Microengineering, or Mechanical Engineering
• Foundation in analog and digital electronics, or electromechanical design
• Familiarity with PCB design tools (Altium Designer preferred)
• Basic understanding of battery systems and BMS architectures
• Ability to read and interpret datasheets, application notes, and reference designs from semiconductor vendors
• Hands-on experience with soldering, lab bench testing, oscilloscopes, and logic analyzers.
• 3D CAD experience (SolidWorks, CATIA) for enclosure or mechanical design tasks is a plus
• Proficiency in English (written and spoken); French or German is a plus
  
  

Interpersonal skills

• Autonomous, structured, and solution‑oriented working approach
• Strong analytical and problem‑solving mindset
• Ability to collaborate effectively with engineers and multidisciplinary teams
• Clear and professional communication skills
• Flexibility to work efficiently in a prototyping environment
• Curious and eager to find new ideas to enhance activities in own job
  
  

CSEM mission and values

We believe in a future that is imagined, shared, and created TOGETHER.

At CSEM, we don’t just innovate, we envision technologies that shape tomorrow.

Since 1984, our purpose has remained constant: to harness science and technology for the benefit of society. Today, with over 650 people across Switzerland, we remain committed to our mission: to develop and transfer world-class solutions in digital technologies, precision manufacturing, and sustainable energy systems. In doing so, we empower Swiss industry to innovate and remain competitive.

Our strength is the excellence of our people. We believe that strong values support the successful development of our organization as well as the harmonious and balanced development of all our employees.

We are

• A unique place between research and industry at the cutting edge of new technologies
• An innovative, non-profit, and employee-driven company
• A dynamic, multidisciplinary, and multicultural environment
• A solar team focused on enabling solutions to energy challenges for a sustainable world
  
  

Working@CSEM means

• Being part of a passionate community.
• Flexibility, attractive working conditions, and opportunities of development.
• Benefit from a management style based on trust & feedback.
  
  

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity.

We look forward to receiving your complete application file via (CV, cover letter, certificates & diplomas) our job page. Preference will be given to professionals applying directly.