Mechanical Engineer

Posted:  24 October, 2023

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Alphen a/d Rijn
Job type

About the role

Are you excited to be at the forefront of climate action and sustainable energy storage innovation? AQUABATTERY is seeking a skilled Mechanical Engineer to join our product development team. In collaboration with a team of scientists and engineers, you will play an key role in the development of a groundbreaking saltwater flow battery technology and a long duration energy storage product. You will be working at our new office, R&D and manufacturing facility in Alphen a/d Rijn, the Netherlands, and delivering on our commercialization plan until 2025 and beyond.

What you’ll be doing

  • Perform design and structural analysis of innovative membrane stacks, including the assessment of material compression and layer interactions.
  • Translate product design challenges into Finite Element Method (FEM) models, interpret analysis results, and propose design enhancements based on the outcomes.
  • Conduct static and dynamic Finite Element Analyses (FEAs), both linear and non-linear, to design and analyze structural components within the stack.
  • Establish connections between FEM analysis results and laboratory testing data to provide validated insights for product design improvements.
  • Execute basic mechanical design calculations, such as determining the size and dimensions of stack components.
  • Conduct mechanical tests to characterize polymer material behaviour and translate the results into material models.
  • Prototype, build, test, and evaluate novel stack designs, while identifying and implementing improvements.
  • Collaborate with a team of engineers and scientists to optimize membrane stack designs for efficiency, reliability, and cost-effectiveness.
  • Prepare technical reports, drawings, and presentations to document designs, analyses, and test results.
  • Stay abreast of advancements in membrane stacks technology and incorporate new developments into designs.


Education and experience:

  • An Applied Science or University degree (Bachelor's or Master's) in mechanical engineering, materials science, mechatronics, civil engineering, or a related field.
  • 2+ years of relevant experience.

Knowledge and skills:

  • Strong understanding of fluid mechanics, thermodynamics, and structural mechanics (ideally in relation to membrane stack design)
  • Strong understanding of structural mechanics, encompassing both analytical and FEM-based methodologies.
  • Experience with FEM software (Ansys, COMSOL or similar).
  • Proficiency in English, both spoken and written (near-fluent).
  • Excellent communication (written and presentation) and cooperation skills.
  • You work accurately, safely and with a solution-oriented attitude.

The following is considered a plus:

  • Experience with manufacturing processes and cost planning.
  • Familiarity with materials science and corrosion principles.
  • Proficient in Dutch, both spoken and written.
  • An affinity with different disciplines such as materials-, process-, (electro)chemical-, electrical-, and software engineering.

What you can expect

  • Work at a fast-growing climate tech startup company with the mission to develop the world’s most sustainable long duration energy storage (LDES) enabling a net-zero power system.
  • Be part of an enthusiastic and impact-driven team, motivated by delivering climate action and sustainability through technological innovation.
  • Diverse weekly activities and active learning environment (ie.: knowledge sharing, presentations, team collaboration).
  • Flexibility and emphasize on a good work-life balance.
  • An open and multicultural environment with different nationalities where expressing opinions, sharing ideas and taking initiatives is encouraged.
  • Good salary and attractive secondary benefits (ex.: pension, stock appreciation right).

Excited to join? Get in touch with us today!

Apply now

About our company

AQUABATTERY is a climate-tech start-up, based in the Netherlands. Our vision is to empower the transition to net-zero by providing the world’s most scalable, sustainable and safe long duration energy storage solution. We do so through our revolutionary technology, which enables the storage of electricity in just saltwater. The world will need high volumes of energy storage to enable reliance on renewable energy sources like solar PV and wind energy, even if the sun does not shine or the wind does not blow. Our technology has been successfully demonstrated through several pilot installations in the Netherlands and in Italy. Our international team reinforces our impact-focused culture every day; taking on challenges and celebrating successes together. If you are excited to know more, check out our open positions to join the ride!

About us