The RoleAs an expert in joining processes, you’ll be at the forefront of the creation of next-generation electric motorcycles, batteries & associated products. You’ll be responsible for developing the whole joining processes from prototypes to series production in batteries including process qualification, validation and testing. Moreover you will train and qualify inline quality measurement systems, define tools and set requirements for the welding materials and geometry. You will therefore assist Stark’s R&D; through advice on internal validation processes & design improvements for series production. You will be part of the growing team for “Production Process Development” and report to the Team leader and CTO as well. You'll need to have hands‑on experience, developing complex assembly processes and the ability to thrive in a fast‑paced, evolving, and highly innovative environment.What You’ll DoBe the technical lead of developing joining technologies (focus bonding/laser welding)Install and develop new bonding/laser welding processesDevelop a robust process window for bonding/laser welding in series production for possible variations in the processInstall and train online quality measurement systems to control the process in series productionSet requirements for parts (materials/geometry) and tools (for welding)Define specifications for machines, tools and facilitiesPlan and assure that targets are achieved on time within the expected quality & costsConceptualize, bring‑up, prototype, test and deliver production welding processes, R&D; and in‑line validation processesReview and approve documentation including drawings, schematics,



and detailed proceduresEnsure internal validation of the overall systemsSupport testing and analyses in other areas of engineering or developmentSupport the transition to the manufacturing lineWhat you’ll bring to StarkMechanical Engineering degree or similarDeep experiences in joining technologies with focus on bonding and laser weldingExperiences in teaching automated welding machines with different materials & geometriesExperiences in designing tools for welding and setting requirements for the parts and toolsStrong analytical & problem‑solving skillsComfortable in a fast‑paced, ever‑evolving, highly innovative environment (startups or high‑tech companies)High standards for yourself and everyone you work withConstantly looking for ways to innovate, improving your products performance, quality, and costOutstanding communication and interpersonal skills, fluent English is a mustWhy Work with UsThe chance to work on a product people are genuinely passionate aboutA fast‑growing company with real momentumA creative, international team based in BarcelonaCompetitive salary and benefits packageDirect access to riders, race teams, and the product — this is not a remote‑from‑the‑product roleSubsidized lunch in our in‑house restaurantFree access to our in‑house gym (including weekends!)30 days of paid vacationAt Stark, we don’t just accept difference—we celebrate it, we support it, and we thrive on it for the benefit of our employees, our products, and our community. We are committed to creating an inclusive environment where everyone, regardless of gender identity, sexual orientation, race, religion, age, neurodiversity, or disability, feels a true sense of belonging. We believe that diverse teams make better decisions and that a culture of equity is a prerequisite for innovation.

📌 Laser Welding Specialist - Battery Production (Barcelona)
🏢 Stark Future
📍 Barcelona