System Engineer, Energy Storage & Optimization

VaasaCompetitive0 applicants

About this role

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.

The position of Systems Engineer ("SE") will be part of the growing Project Delivery Team and report to Manager of Project Delivery. We require two individuals to support current commerical activity. An ideal location for us is eitehr the UK or Finland.

The SE are responsible to oversee the Project Design (Electrical Design Package, Communication, and minor Software), Commissioning, and Technical Support of AC and DC electrical systems associated with utility-scale Battery Energy Storage Systems (BESS). Applicant should have a solid understanding of fundamental electrical engineering, project management and construction principals, as well as experience designing high power electrical systems.

This position will be a member of Wartsila's internal and customer technical Subject Matter Expert Team for ESS Products and Projects and will work closely with the following group: Software Delivery, Product Delivery, Project Management, Commissioning Manager, and other various groups to ensure ESS projects fulfil customer functionality and contract requirements.

Minimum Skills Requirements:

Minimum Bachelors or Master's degree in Electrical,

EU Requirements

Job Details

Posted10 May 2026
Closes9 June 2026

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