Overview BOLD is committed to shaping the future of high-performance mobility from Formula 1 to defense, aviation and marine. In our mission to deliver innovative and impactful products in the mobility sector, we are building the company whilst working with clients on exciting engineering and manufacturing challenges.
Our Divisions BOLD is a leading company in advanced technology and engineering, operating through two highly complementary divisions and delivering critical solutions for mission-essential applications.
BOLD Technologies (BT)
Designs, develops and manufactures high-voltage battery systems and electric propulsion system components for defence applications, tactical vehicles, military platforms, aviation and advanced mobility. BOLD is an international benchmark in defence electrification, supplying systems to United States Army programmes and collaborating with leading defence primes in the US and Europe.
BOLD Applied Engineering (BAE)
Provides top-tier professional engineering services, primarily to elite motorsport teams (especially Formula 1), in areas such as composite design, mechanical engineering, aerodynamics and systems integration. This expertise is transferred directly to complex defence sector programmes.
Together, BT and BAE allow BOLD to offer a unique blend of technology, engineering services, and execution capability to elite customers operating at the highest levels of performance.
Position: Senior Simulations Engineer We are looking for a Senior Simulations Engineer to drive the development, validation, and optimization of high-performance electrification systems through advanced simulation, playing a key role in technical decision-making for battery and electric powertrain projects across automotive, motorsport, and special applications.
Key Responsibilities Lead the development, execution, and validation of advanced simulation models for electrical and battery systems.
Use simulation results to drive architecture, design, and performance decisions at system and component level.
Act as a technical reference for simulation topics within the organization.
Collaborate closely with design, validation, testing, and manufacturing teams to ensure alignment between simulation, testing, and real-world performance.
Define simulation methodologies, assumptions, and best practices.
Review, validate, and challenge simulation models and results generated by junior engineers.
Support system validation through correlation of simulation models with experimental and vehicle data.
Identify limitations, risks, and improvement opportunities in system designs using simulation insights.
Contribute to continuous improvement of tools, processes, and internal standards.
Provide high-level technical support to other departments and projects when required.
Why Join BOLD Opportunity to create and lead BOLD's growth
Participation in the most advanced engineering projects in the sector
A technically excellent environment with strong international ambition
High-growth, multicultural environment: Be part of a fast-scaling company driving innovation in advanced electrification.
Flexible compensation
Private health insurance with reduced cost for employees and family
Subsidised canteen
Flexible work schedule and up to 5 remote days/month
Monthly Town Hall
Diversity & Inclusion BOLD is an equal-opportunity company. We believe in a merit and competence culture where the best ideas thrive regardless of age, disability, race, religion, or belief, gender, sexual orientation, marital status or family circumstances.
Privacy Policy BOLD respects your privacy and is committed to protecting the personal information you share with us, please refer to BOLD's Privacy Policy for more details.
Minimum Requirements Education & Experience Bachelor's degree in Engineering (Electrical, Electronic, Industrial, Mechanical, Automotive, or similar).
Master's degree in Electrification, Electric Vehicles, Energy Systems, Simulation, or related fields (highly valued).
Technical Skills A minimum of 5 years of professional working experience in a similar position.
Strong background in modeling and simulation of complex physical systems.
Proven experience with:
Battery systems (cells, modules, packs, BMS).
Electric powertrain and electrification architectures.
Experience correlating simulation models with test and real-world data.
Advanced data analysis and interpretation skills.
Ability to work autonomously and take ownership of complex technical topics.
Experience working in fast-paced, high-performance environments (start-up, scale-up, motorsport, automotive, or aerospace).
Exposure to cross-functional and multidisciplinary engineering teams.
Languages Advanced in English and Spanish (spoken and written).
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