Field Test Engineer (m/w/d)
Skeleton Technologies
Company Overview
Skeleton Technologies Group OÜ
Tallinn, Estonia
2009
Approximately 300 employees across Estonia, Germany, and Finland (source: inforegister.ee). Revenue projected at €6.84 million for FY 2024 (source: inforegister.ee).
What They Do
Skeleton Technologies specializes in high-power energy storage solutions, leveraging its proprietary curved graphene nanomaterial to produce supercapacitors and hybrid SuperBatteries. Their innovative products are designed for a variety of applications, including AI data centers, transportation sectors such as automotive and maritime, grid stabilization, and industrial uses. As Europe's largest ultracapacitor manufacturer, Skeleton Technologies maintains full control over its value chain, from raw materials to software and patents, ensuring superior performance and reliability in their offerings (source: wikipedia.org). Their product lineup includes the SkelCap SCA series cells, which are UL 810A certified for safety in automotive and UPS applications, and the SkelStart engine start modules, which boast an impressive 2,000 cold-cranking amps and a lifespan of over 1 million cycles.
Projects & Track Record
Skeleton Technologies has a strong track record of notable projects, including the opening of the Großröhrsdorf Superfactory in 2017, which significantly scaled their ISO-certified module production capabilities. They launched the SkelStart in 2015, recognized as the world's most powerful engine starter, and have developed space capacitors for the European Space Agency since 2011. In 2024, they are set to power the NTT IndyCar Series with their advanced supercapacitors, showcasing their commitment to innovation in high-performance applications (source: skeletontech.com). Currently, they are working on the €220 million Leipzig Superfactory, which is expected to produce 12 million cells annually and create 420 jobs, with production slated to begin in 2024-2025.
Recent Developments
In the past two years, Skeleton Technologies has made significant strides, including the opening of its €220 million Leipzig Superfactory, which represents Estonia's largest industrial investment in Germany and aims to produce 12 million cells per year (source: balticvc.com). They secured a €108 million funding round in October 2023, led by Siemens and Marubeni, pushing their total funding over €300 million (source: skeletontech.com). Additionally, they acquired the former European Batteries facility in Varkaus, Finland, for SuperBattery production and established R&D operations there, further enhancing their capabilities in energy storage technology.
Working There
Skeleton Technologies offers a diverse range of roles across various departments, including module and software development, sales, finance, administration, manufacturing, and R&D. The company is actively hiring, particularly at its production sites, with the average employee count at the Estonian OÜ being approximately 98 in 2022, focusing on development and sales (source: inforegister.ee). The new Leipzig factory is expected to add 420 manufacturing positions, reflecting the company's rapid growth and expansion in the energy storage sector. The company culture emphasizes innovation, collaboration with universities, and a mission to electrify various sectors, supported by experienced leadership in energy storage technology.
Contact
Last updated on 2025-12-27 | Report an issue
Job Description
Skeleton is looking for a driven and detail-oriented and open-to-travel extensively Test Engineer to join our Advanced Engineering team in Lappeenranta.
Would you like to play a key role in ensuring the performance and reliability of cutting-edge energy storage products?
Your tasks
- Graphene GPU validation and verification tests: Test program planning, test planning, building the test setups, conducting the tests, and reporting the tests.
- Development and maintenance of measurement equipment.
- Development and maintenance of test methods.
- Conducting tests on our supplier site in USA.
- Setting up the test setup and conducting tests on our customer sites, mostly in USA.
Requirements
- Educational background: at least B.Sc. (from a University of Applied Sciences in Finland) or at least M.Sc. (from a University of Technology in Finland) in electrical engineering, power electronics, applied electronics, or equivalent field.
- Familiarity with test planning, execution, and reporting.
- Hands-on experience with measurement equipment and test setups.
- Ability to work independently and manage multiple tasks effectively.
- Strong communication skills in English and Finnish.
- Previous experience in a similar role or a strong motivation to learn.
- Willingness to travel frequently to customer sites (mostly in US).
Benefits
- A versatile and responsible role in a skilled and supportive team.
- Opportunity to influence product quality and development.
- An international working environment with growth opportunities.
- Support for professional development.
We're not just about energy storage. We're about redefining energy for a net-zero future, and we'd love for you to be a part of our journey.
Apply now
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About the role
February 18, 2026
Full Time
Company
February 20, 2026
Flexible
- Lappeenranta, Finland
Entry to mid-level
UTC+02:00
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