Full-time

Junior Business Controller

Posted by Wärtsilä • Vaasa, Vaasa, Finland

📍 Vaasa, Vaasa 🕒 March 03, 2026

About the Role

Junior Business Controller

Wärtsilä Energy Storage is powering the shift to a cleaner, more resilient grid.

We work at the front lines of the energy transition, helping partners around the world maximize the value of renewables through grid-scale battery systems, advanced software, and expert services. Our portfolio includes the industry-leading GEMS Digital Energy Platform, utility-scale battery solutions, and lifecycle services that keep storage assets optimized and ready when it matters most.

With over 17 GWh of storage deployed or under contract across 130+ projects globally, we’re shaping how the grid of the future works.

In a world of rising complexity and accelerating change, we’re looking for future-focused talent to help us design, deliver, and support the energy systems of tomorrow.

Sound like your kind of challenge? Let’s build it together. 


We are looking for a Junior Business Controller, to join the Bus...

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