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Polarium Stockholm Full time

System Design Engineer, Battery Energy Storage Systems

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Om jobbet

We develop and manufacture turnkey energy storage solutions, based on lithium-ion battery technology. Our goal is to engineer technology that both stores and optimizes energy as we shift towards more efficient energy usage and renewable energy sources on a global scale. You’ll have the opportunity to work with exceptional engineers, scientists, developers and more to pave the way for the next big leap in the energy industry through our battery energy storage and optimization systems.

Location: Polarium HQ in Stockholm

Position: Permanent, full-time


  • Design system architectures and define product and system requirements.
  • Act as Tech Lead and ensure traceability of requirements throughout the development process.
  • Coordinate requirements break-down with design disciplines.
  • Plan and lead the Qualification Tests for the project.
  • Create top-level functional (SW) and product specification.
  • Review and compile the information required for the TDP.

Qualifications and experience:

  • Minimum of 5 years of experience from similar roles
  • Knowledge in telecom power, power conversion and/or Lithium batteries
  • Experience from:
    • prequalification and certification
    • functional safety and critical systems
    • hardware and software requirements
    • standards in electrical safety, RfG, grid codes, EMC and/or RED
  • Relevant higher education

Join our team and enjoy our comprehensive benefits package, which includes private health insurance, a generous wellness allowance, a flexible parental leave policy, and the opportunity for hybrid working. We believe in inclusivity and want to ensure that our employees have access to benefits that support their well-being and work-life balance.

Kindly submit your application through the provided link in the advertisement via our careers page, as we are unable to accept any applications via email in compliance with the GDPR regulations.

About Polarium

At Polarium, creating change in the energy industry starts with our team. We believe a diverse workplace brings creativity, innovation and better represents our customers, and the many communities they serve, around the world. A positive work-life balance is what supercharges our teamwork and a sustainable personal journey throughout our careers.

Since Polarium launched in 2015, we’ve been on a mission to redesign the energy industry. We’re unlocking the massive potential of energy storage systems through our wide range of intelligent and digital services. Our passion for solving challenges is what drives our next generation of premium energy storage products in use on all continents and in all climate zones. Today, we power businesses, optimize energy usage, and reduce carbon dioxide emissions to create a cleaner future in energy.

We look forward to receiving your application!

Om företaget

We are an impact business contributing to the sustainable energy transformation by enabling renewables, electrification and intermittent power supply. Our cutting-edge and easily adaptable modular battery technology enables us to be in the forefront of developing state-of-the-art sustainable energy storage and optimization solutions for today - and tomorrow. Polarium is a fast-growing, profitable entrepreneurial company headquartered in Stockholm, with production in Mexico, South Africa and Vietnam, customers across the world from Ghana to Svalbard and 600+ employees.

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