The “Energy Systems” group of our “Sustainable Energy” Business Unit based in Neuchâtel, Switzerland, is currently looking for a Battery Software & Algorithms Developer.

Your mission

Your mission is to develop software for our innovative Battery Management System (BMS) technology. You design model-based or data-driven algorithms, implement associated battery models and SoX state estimators on our innovated BMS hardware platforms and verify the performance of these algorithms.

Your responsibilities

  • You design physics and data-based battery models and define associated software architectures.
  • You design battery state estimators (e.g., SoC, SoH, SoS, etc.) and define associated software architectures.
  • You implement these models/estimators together with suitable simulation environments on PC-based platforms.
  • You implement software that supports, uses or exploits these models and estimators on PC-based platforms.
  • You study academic papers, integrate your findings in your developments and share your insights with the team.
  • You establish test plans for the performance evaluation of the battery models and SoX estimators.
  • You execute the performance tests via suitable simulations or based on available laboratory data.
  • You support the integration of BMS software into embedded systems together with the BMS hardware team.
  • You document your work, make technical reports/presentations and scientific papers for international publication.


Your profile


  • PhD degree in Electrical Engineering, Energy, Electrochemistry or related fields, or MSc with +3 years of experience
  • Knowledge of Lithium-ion battery technologies and associated behavior, e.g., degradation and safety
  • Knowledge of physics-based or data-driven modelling approaches for electrochemical storage systems
  • Knowledge of battery testing and performance validation under various operating conditions
  • Proven experience in modelling and simulation of electrochemical storage systems
  • Proven experience in design and implementation of battery state estimators
  • Proven experience in Python/C programming and software development tools (e.g., GitHub, etc.)
  • Experience in signal processing and control/optimization
  • Knowledge of requirements and experience in implementation for embedded systems
  • Knowledge and experience in verification tools on PC and embedded systems
  • Professional proficiency in English (oral and written)
  • Good knowledge of battery diagnosis technique such as EIS, IC/DV, and others being a plus
  • Knowledge of RUST, VHDL/Verilog, Web interface and other GUI design being a plus

Interpersonal skills

  • Open, creative, and result-oriented mindset
  • Highly motivated, eager to learn and with a strong sense of ownership
  • Autonomous with strong analytical capacity for solving technical problems and work organization
  • Clear presentation of accomplished work and potential issues
  • Natural curiosity and ability to work on multidisciplinary projects
  • Team player with good communication skills to interact constructively with colleagues and partners
  • Interest and motivation to join a startup that is scheduled to be created within the next two years being a plus

CSEM mission and values

Our mission is the development and transfer of innovative technologies to the Swiss industry and our strength is the excellence of our people who are passionate about technologies and innovation.

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
  • incredible flexibility, attractive working conditions, and great opportunities of development
  • benefit from a management style based on trust & feedback and that favors a work-life balance

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.