
We are looking for an experienced
Senior Power Electronics Engineer (m/f/x)
to lead the development of advanced power electronics solutions for Solid State Transformer applications in datacenters, driving product architecture, technology roadmap, and research initiatives while providing technical leadership in customer projects, mentoring engineering teams, and continuously improving development processes and tools.
Key Responsibilities
Requirements
Benefits
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.
About Skeleton
Skeleton Technologies is a Global Cleantech 100 company and a technology leader in high-power energy storage, enabling the next generation of AI infrastructure, electrified transportation, grids, and industrial systems.
For us, developing and producing the best energy storage solutions is a means to an end: helping companies to reduce CO2 emissions and save energy.
We work with leading global companies across AI infrastructure, hyperscale data centers, grid operators, automotive and industrial OEMs, defense, and aerospace, including customers and partners in Europe and the United States. Our technologies improve power quality, unlock higher system performance, and accelerate electrification while directly reducing energy losses and CO₂ emissions.
Skeleton’s supercapacitor and SuperBattery technologies, based on patented curved graphene, represent the most significant breakthrough in high-power energy storage in decades. They deliver unmatched power density, long cycle life, and reliability, making them uniquely suited for AI data centers, grid-forming applications, and other mission-critical systems where failure is not an option.
Skeleton Technologies operates a vertically integrated, industrial-scale footprint across trusted supply chains.
We are headquartered in Tallinn, Estonia, with manufacturing in Markranstädt, Germany and Varkaus, Finland; materials development in Bitterfeld-Wolfen, Germany; R&D and commercial teams across Finland and France; and a growing presence in the United States to support AI infrastructure and strategic partners in North America.

Skeleton Technologies is the world’s largest manufacturer of supercapacitors for mission-critical infrastructure and industry, founded in 2009 in Estonia.
Power today is more than electricity — it is national security, digital continuity, and economic resilience.
Skeleton is the Backbone of Power: equipping grids, defense systems, AI data centers, heavy industry, and critical infrastructure with the resilience to withstand surges, instability, and failure. Our Curved Graphene technology sets the global benchmark for energy storage reliability.
Today, Skeleton employs over 300 energy storage experts and produces more than 4 million cells annually at our Leipzig facility. Our technology is central to the global transition to net-zero, providing reliable, high-performance energy storage that strengthens the systems society depends on.
Skeleton is more than a cleantech company. When power fails, critical operations stop — data goes offline, systems crash, economies freeze, lives are at risk. We exist to prevent that in microseconds. When failure is not an option, Skeleton stands as the backbone of mission-critical power.