About LeydenJar

At LeydenJar Technologies, we’re on a mission to redefine the future of energy storage. Our goal is to become the world’s innovation leader in advanced battery anodes, empowering the next generation of batteries that drive progress.

Why does this matter? Because the world needs higher energy density batteries not just for better consumer electronics, but for electric vehicles, e-flight, and beyond. While the battery industry typically advances by only 3% per year, our breakthrough pure silicon anode technology delivers an improvement of up to 70%ma true game changer. Often called the “holy grail” of the battery industry, our technology unlocks new possibilities for electrification, sustainability, and resilience in global supply chains.

What we do:

• We produce pure silicon anode rolls that fit seamlessly into existing battery cell manufacturing lines, enabling customers to make a quantum leap in performance or create entirely new product categories.
• Our initial focus is on consumer electronics, with automotive applications already in development.
• By leveraging semiconductor thin-film technology (plasma deposition) and scaling it to battery anodes, we’ve overcome the long-standing challenges of silicon in batteries, delivering durability and efficiency at scale.

To meet global demand, we’re scaling up:

• PlantOne in Eindhoven opens in 2026, producing anode rolls and validating our roll-to-roll production tools.
• PlantTwo, our large-scale production facility, will follow, establishing LeydenJar as a key player in the global battery market.

This is an enormous opportunity and an ambitious journey. It requires bold, creative, and diverse minds who share our passion for innovation and sustainability. At LeydenJar, we value different perspectives, inclusive collaboration, and gender equality because we know that diversity fuels breakthrough ideas.

We are looking for a dedicated Production Technician to support our pre-pilot operations, who enjoys working with high-tech equipment and can carry out repetitive tasks precisely. You are eager to learn and excited to work with us to make better batteries. Your work will be supervised by senior process engineers, and you will report to product line Manager. You will be part of a young, international, ambitious and diverse team that is determined to make a better world with cleaner energy.

It is a full-time (40 hours a week) position and working from home is not possible. Your main working location will be in Eindhoven.

You will be responsible for:

Production Process Management:

• Oversee the day-to-day production operations, ensuring compliance with quality standards, safety regulations, and production schedules.
• Efficient production
• Preparation PECVD production and R&D machines
• implement corrective actions as necessary.
• Collaborate with other departments
  Technical Expertise:
• Troubleshoot equipment malfunctions and technical issues, coordinating repairs and maintenance activities as needed.
• Implement best equipment operation, maintenance, and calibration practices to maximize efficiency and minimize downtime.
• Support maintaining of the machines in close cooperation our partners
  Quality Assurance:
• Work closely with the quality assurance team and implement improvements to the production process.
  Documentation and Reporting:
• Maintain accurate records of production activities
  Continuous Improvement:
• Identify opportunities for process optimization, cost reduction, and waste minimization within the production process.
• Propose and implement initiatives to improve efficiency, productivity, and overall performance.
• Process improvements to achieve a constant quality of our innovative products
• Initiatives to improve the machine, the maintenance, and the expanding production location.