Junior Mechanical Engineer

The Role

At Ore Energy, we are on a mission to fundamentally expand the amount of energy society can reliably harness and use, helping move civilization toward a more abundant energy future. We are doing this by developing long-duration, utility-scale iron-air batteries that provide safe, low-cost, multi-day energy storage for electricity grids and data centers.

We are expanding our technical development capabilities and are looking for two Junior Mechanical Engineers to join our team in Amsterdam. In this role, you will support the mechanical design, prototyping, and testing of our breakthrough iron-air battery cells, modules, and supporting hardware systems.

Operating at the intersection of electrochemistry, materials science, and physical systems engineering, you will translate theoretical product requirements into practical, physical, and testable mechanical designs. This is a highly collaborative, hands-on, and iterative role for a curious, creative, and detail-oriented engineer who loves building, testing, and troubleshooting hardware in a fast-paced laboratory and workshop environment.

Key Responsibilities

• CAD & Design Ownership: Create, update, and manage high-quality 3D CAD models, complex assemblies, and detailed engineering drawings for battery housings, seals, supports, and internal components.
• Hands-on Prototyping: Build, modify, and inspect physical prototypes for development, structural analysis, and validation testing.
• Testing & Troubleshooting: Actively participate in mechanical testing, experimental setup, and troubleshooting of prototype designs to assess tolerance, sealing, fit, and durability.
• Root-Cause Analysis: Identify design weaknesses, contribute to root-cause failure analysis, and propose creative engineering improvements to simplify assembly, safety, and reliability.
• Basic Engineering Calculations: Perform fundamental mechanical calculations, tolerance stack-up analyses, and basic structural design assessments.
• Cross-Functional Collaboration: Partner closely with electrochemical, materials, and testing teams to ensure mechanical designs seamlessly support chemistry and performance requirements.
• Technical Documentation: Systematically document design iterations, test observations, engineering changes, and key learning outcomes.

Your Profile

• Education: Bachelor’s or Master’s degree in Mechanical Engineering, Product Design, Aerospace Engineering, or a highly related technical field.
• CAD Proficiency: Strong foundational proficiency in 3D CAD modeling software (such as SolidWorks, Inventor, or similar) and a clear understanding of technical drawing standards.
• Hands-on Mindset: A proactive, physical problem-solver who genuinely enjoys working with tools, building experimental setups, and handling hardware in a workshop or lab.
• Analytical Curiosity: Strong analytical and detail-oriented mindset with a fast learning curve and a deep curiosity for battery technology and energy storage systems.
• Navigating Ambiguity: Comfortable working in an iterative design environment with evolving technical requirements and challenges.
• Collaboration & Communication: Highly collaborative, open to feedback, and possessing excellent communication skills in English to work effectively across multidisciplinary teams.

About Us

The Challenge We Are Solving

Do you want to contribute to one of the most important challenges of our time: accelerating the energy transition? Are you excited by breakthrough energy storage technology with real-world impact? Would you like to be part of a mission-driven company where your work directly contributes to building the future of clean energy?

Then we are looking for you!

Ore Energy develops long-duration energy storage solutions to support a reliable, zero-carbon electricity system.

Powering the Next Generation of Infrastructure

The electricity grid is undergoing its most significant transformation in a century. As renewables become the cheapest source of new power, the challenge is no longer producing clean energy, it is making it reliably available when and where it is needed, regardless of when the sun shines or the wind blows. Our iron-air batteries are uniquely designed to store renewable energy over multi-day periods, allowing clean electricity to become a dependable, around-the-clock backbone of the grid while reducing reliance on fossil-fuel peaker plants and building a more resilient, fully decarbonized power system.

This is a rare opportunity to join a company at the moment when technology readiness, customer traction, and market demand are converging. Ore Energy has already raised significant capital, built and tested its technology under real-world conditions, and is now moving toward large-scale commercial deployment. As we transition into this industrial implementation phase, we are building the team, systems, and capabilities required to scale our solution and help define how long-duration storage powers both the future grid and the next generation of industry and data infrastructure.

Our Culture & Beliefs

We believe impactful technology is built by talented people who are motivated by complex challenges, scientific rigour and strong execution. That is why we are looking for dedicated professionals who want to help shape a cleaner and more resilient energy future.

At Ore Energy, we are committed to fostering an inclusive and diverse workplace where every individual has the opportunity to thrive. We believe that diversity of thought, background, and experience drives innovation and success.

Are you unsure if you meet all the requirements? Please do apply, we’d love to hear from you! Your unique perspective and skills could be exactly what we’re looking for.