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.

Lead/support international industrial or research projects from technical and organizational point of viewLead/support technical discussions with customersDesign, develop and validate control algorithms for battery state detectionDevelop, implement, and validate battery modelsDesign Battery Management System (BMS) architecture for custom applicationsDesign and supervise characterization and validations test proceduresEvaluate and analyze test dataSupervise junior engineers and internsQualifications: 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 appreciated3-4 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 algorithmFluent spoken and written English.



Knowledge of German is appreciatedGood communication skills, able to work independently and proactivelyExperience with following programming languages: MATLAB and Simulink.

C and Python knowledge is also highly appreciatedBenefits: Hybrid working modelInternational and young working environmentClose collaboration with the colleagues in Aachen (Germany) - offers possibility to temporary work from the German headquarterContinuous trainingAt 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. global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers' product innovation and business growth.

The UL Mark serves as a recognized symbol of trust in our customers' products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate integral markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.

Persons are recruited, hired, assigned and promoted without regard to race, color, age, sex or gender, sexual orientation, gender identity, gender expression, transgender status, religion, creed, national origin, ethnicity, citizenship, ancestry, disability, genetic information, military or veteran status, pregnancy, marital or familial status, or any other protected category under applicable law.

📌 Software Engineer in Test, hibrido (Bilbao)
🏢 Ul
📍 Bilbao