Senior Mechanical Engineer

About Us

PowerUP Energy Technologies is a dynamic and innovative tech company based in Estonia, dedicated to tackling the global climate crisis by providing clean energy solutions through cutting-edge hydrogen technology. We are an international team of creative, collaborative, and practical experts, encouraged to think ‘out of the box’ when taking on big challenges.

What We Offer

At PowerUP, you will have a unique opportunity to join a groundbreaking company and contribute to the emergence of sustainable energy technology. You will work in a collaborative environment and have excellent opportunities for professional growth within a friendly, multinational team.

Job Category: Engineering

Job Type: Full Time

Job Location: Tallinn

Senior Mechanical Engineer – Full-time, Onsite

Key Responsibilities

• Responsible for the mechanical architecture and detailed design for complex gas system and hydrogen products: enclosures, mechanisms, mounting strategies, thermal management, sealing, coolant and electronic materials, and EMC-aware mechanical layout.
• Conduct and contribute to Failure Modes and Effects Analysis (FMEA) to identify design risks and opportunities for improvement in design of generators.
• Select materials and processes (injection molding, sheet metal, die casting, machining, 3D printing) aligned with durability, regulatory, and supply-chain constraints.
• Optimize designs for manufacturability, focusing on Bill of material cost and cost-effectiveness.
• Plan and execute Validation and Verification for mechanical systems: test strategies, protocols, fixtures, and gas systems; support environmental testing (vibration, shock, thermal).
• Ensure stable mechanical design for transportation and lifting, including center-of-gravity control and structural integrity
• Collaborate closely with fuel cell  engineers, electrical engineers, software developers, system integration engineers and production teams to ensure integration of mechanical systems.
• Collaborate with suppliers and manufacturing partners to evaluate design feasibility, resolve technical challenges, and facilitate scalable production.

Essential Skills/Experience/Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering or a related field.
• 5+ years of relevant work experience in mechanical engineering and manufacturing environments.
• Proven experience in design for manufacturing (DFM) and its application in product development is required.
• Proficiency with CAD tools (e.g., SolidWorks, AutoCAD, CATIA).
• Solid understanding of mechanical design principles, materials, and various manufacturing techniques.
• Proven ability to manage multiple tasks and projects independently and drive results under deadlines.
• Practical, hands-on skills in assembly, prototyping, and mechanical troubleshooting.
• Excellent communication and collaboration abilities.
• Fluent in written and spoken English.

Advantageous Skills/Experience

• Experience working with fuel cells, heat exchangers, electrolysers, or battery technologies.
• Familiarity with mechanical and thermal FEA simulations.
• A strong interest in sustainable energy technologies.