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Open nowPosted 120 days ago

Junior Mechanical Engineer

ore-energy2 open roles

Where
Amsterdam
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Your applicationOpen nowJunior Mechanical Engineerore-energy · Amsterdam

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The clock on this job

Early applications get read.

13.9% of postings close within 7 days. Measured by our own scanner across the market. ore-energy postings stay open a median of 31 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.9%7 days
  4. 22.4%14 days
  5. 38.1%30 days
  6. 59.0%60 days
This job: posted 120 days ago

ore-energy median: 31 days open

The posting

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 a Junior Mechanical Engineer 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.
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