Battery Software Engineer
Confirmed on the employer's own hiring board on Sep 28, 2026. First seen by Alion on Sep 17, 2026. UL scores B on the Alion truth index.
We are a dynamic high-tech company from Aachen with subsidiary in Bilbao area, Spain. We deal with all electrochemical energy storage systems. The focus here is on Li-ion technologies and lead-acid batteries, but we also deal with SuperCaps, Ni-based technologies or primary cells are part of our work. The company has specialized in three core areas in the battery field. The first area covers all tests on cells, modules, and batteries. In addition to electrical tests, mechanical, thermal and safety tests are also carried out.
The spectrum of test specimens ranges from the smallest cells in so-called coin-cell format to HV batteries with a maximum voltage of 1,000 V. In the second subject area, the focus is on the development of hardware, models, and algorithms for the diagnostics of storage devices. The range of services is completed with the business area of technical consulting.
BatterieIngenieure by UL Solutions is looking in Bilbao area (Spain) for an engineer for developing advanced diagnostic algorithms and models for batteries. We are looking for highly motivated candidate, with strong technical background and good communications skills towards customers and team members.
Responsibilities:
- Lead/support international industrial or research projects from technical and organizational point of view
- Lead/support technical discussions with customers
- Design, develop and validate control algorithms for battery state detection
- Develop, implement, and validate battery models
- Design Battery Management System (BMS) architecture for custom applications
- Design and supervise characterization and validations test procedures
- Evaluate and analyze test data
- Supervise junior engineers and interns
Qualifications:
- Automation and system engineering / electronic engineering / mechanical engineering / data engineering / Informatic engineering / Physics (equivalent bachelor´s or master´s degrees). Phd in related fields is highly appreciated
- 3-4 years of experience in one or more of the following fields: Battery Modeling and Simulation, Design of functionalities for battery state detection and Battery Management System, AI-based models and algorithm
- Fluent spoken and written English. Knowledge of German is appreciated
- Good communication skills, able to work independently and proactively
- Experience with following programming languages: MATLAB and Simulink. C and Python knowledge is also highly appreciated
Benefits:
- Hybrid working model
- International and young working environment
- Close collaboration with the colleagues in Aachen (Germany) - offers possibility to temporary work from the German headquarter
- Continuous training
At BatterieIngenieure by UL Solutions, we are committed to fostering a workplace culture that values and promotes equal opportunities for all employees, regardless of gender. We believe that diversity and inclusion are essential to our success and innovation, and we actively work to ensure that men and women have equal access to opportunities, resources, and career advancement.