At BOLD, we design and build the next generation of high-performance battery systems for the world’s most demanding industries — from Formula 1 and hypercars to aerospace, marine and defense. Our mission: to deliver energy systems where every millisecond and every degree matter.
As a Product Engineer, you will Contribute to the purpose of the organization by leading the technical definition and implementation of battery pack production lines, ensuring efficient, robust industrial processes aligned with the required quality, safety and scalability standards for high-performance electrification projects.
What You’ll Do Industrialisation and production lines
Define the technical concept of battery pack production lines, from prototypes to niche-volume production.
Develop the process architecture for assembly, welding and end-of-line (EOL) operations.
Ensure industrial solutions meet quality, safety and scalability requirements.
Participate in defining the plant layout and production flow.
Provide technical support during line commissioning and stabilisation phases.
Collaboration with engineering and product design
Work closely with engineering teams to influence product design from a manufacturability perspective.
Propose design improvements aimed at increasing production efficiency, quality and cost optimisation.
Align product specifications with presente manufacturing capabilities.
Identify industrialisation risks at early stages of product development.
Provide technical support during equipment manufacturing, installation and validation.
Validate technical solutions from an industrial and quality standpoint.
Quality, processes and continuous improvement
Ensure production processes comply with applicable quality standards (IATF 16949 or equivalent).




Implement quality control and traceability systems within the production line.
Support the resolution of technical issues arising during production.
1+ years of experience as a Production Engineer, Manufacturing Engineer, or in a similar role within an industrial manufacturing environment.
~ Battery pack manufacturing processes.
~ Definition of assembly, welding and EOL processes.
~ Industrial automation and production equipment.
~ Industrial quality systems and regulated environments.
~ Knowledge of quality standards (IATF 16949 desirable).
~ Solid understanding of industrial quality systems, process validation, and manufacturing in regulated environments.
~ Red Level certification (High-voltage battery handling and electrical safety training).

Private health insurance - Reduced cost for employees and family.
Flexible work schedule and up to 5 remote days/month.
About BOLD At Bold, we’re a diverse, international team with backgrounds in automotive, motorsport, aerospace, defense and aviation.
We combine creativity and engineering rigour to deliver high-performance, safe and sustainable energy systems for the world’s most demanding applications.
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.
BOLD Technology (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.

📌 Production Technology Engineer (Barcelona)
🏢 Bold
📍 Barcelona