Mechanical Engineer & Project Manager

• See your designs on the street in weeks, not years. And not just any street: cities like Amsterdam, Madrid, London or Los Angeles.
• Get in early. The eCargoBike is our first use case and more are coming. Whoever joins now does not inherit the next vehicles: they design them and put them on the street.
• Our own test rig and permission to break things. No queues, no external labs.
• A face-to-face team, in the workshop and in Seville. 100% on-site.

Mothium builds professional electric vehicles for urban logistics and the agents that run them. MothiOS ships with every vehicle and today it runs maintenance, aftersales, routing and cost across real customer fleets. It is not a demo. It is operating.

Vehicles that live for years on the street set the brief for you. Kerbs, ramps, loading bays, a driver in a hurry and a load that is never where the drawing said it would be.

You will design chassis, steering, transmission and body parts. And you will run the project that turns them into a vehicle: scope, schedule, suppliers and budget. You draw it, we build it, we break it, and within weeks you know why it failed and what that failure does to the delivery date.

The hard part is not the CAD or the schedule. It is holding four things at once: a part that passes the standard, that a supplier can make at a sound cost, that a workshop can replace without dismantling half the vehicle, and that makes it into the production run on time. Someone has to arbitrate between the four. That is you.

• Design parts and assemblies for chassis, steering, transmission and body, from concept to production drawings.
• Plan and lead vehicle development projects: scope, schedule, milestones, budget and gate reviews.
• Coordinate suppliers, workshop, assembly line and homologation, and be the project's point of contact.
• Work with international suppliers and partners: delivery follow-up, technical reviews and negotiation, in English.
• Run test rig campaigns: define the load case, measure it, and document why it failed.
• Anticipate technical and schedule risks, and decide on data what goes into the run and what waits for the next one.
• Design for service: parts a workshop can replace, with the spare parts catalogue in mind.
• Produce technical drawings, manufacturing documentation and product renders for design reviews, suppliers and communication.

• You want to see your part on the street in weeks. That speed cuts both ways, because mistakes arrive in weeks too.
• You can say "this goes in" and "this waits". Once a run is committed, improvements go to the next one, and here you make that call.
• You like owning a part and a project end to end, including the call to the supplier when it does not fit.
• You would rather argue a criterion in a standards committee than accept one you think is wrong.