Senior Development Engineer, Power Systems

Wärtsilä Energy Business is developing and delivering competitive products and solutions for the power systems across the globe. Our scope ranges from microgrids to large-interconnected grids and from base load to balancing markets. The power systems around the globe are undergoing major transformations where the share of synchronous generation is decreasing in the generation mix. At Wärtsilä Energy we are committed to decarbonisation of energy and enabling 100 % renewable power generation. To be prepared for the transformation, regulators and grid operators are developing the requirements and novel market mechanisms. The Power Systems team has the invaluable role to ensure Wärtsilä’s market position, competitiveness and compliance to regulation and requirements worldwide. We do this by our expertise in power systems, grid code requirements and modelling and simulation. We are looking for a Senior Development Engineer, Power Systems to bring expertise in power systems, modelling and simulations and grid code requirements. The Senior Development Engineer, Power Systems will be reporting to the General Manager, Power Systems. Preferred location is Vaasa, Finland, but also Wärtsilä locations in Helsinki or Turku can be considered. Key Responsibilities As a Senior Development Engineer, Power Systems you will - Assess power plant performance, interpret global grid code requirements, and analyse test results to ensure Wärtsilä engine power plants achieve regulatory compliance and expected operational performance. - Develop power system models for Wärtsilä’s synchronous engine power plant solutions and perform simulations with them using tools such as PowerFactory and PSCAD. - Collaborate with the team in development activities, measurement campaigns or technical project and sales support cases as part of your daily activities. - Develop and improve ways of working by applying tools such as Python automation and AI. Required Qualifications Education Master's degree or higher in Power Engineering or a closely related field Experience Minimum of 3 years of experience in working with grid code requirements, power system modelling and simulations. Core competencies - Analytical mindset and ability to distinguish relevant information - Ability to collaborate in a team and support other team members - Ability to translate and explain complex technical topics in a clear and understandable way for non-technical audiences - Experience using Python or similar tools and practical application of AI in engineering workflows. - Fluent written and spoken English Beneficial skills and abilities - Experience with power system control, stability and design - Ability to write concise reports - Ability to work in a consultative manner with internal and external stakeholders and experience with synchronous machines Why you and us? We at Wärtsilä believe in empowerment, ownership and taking responsibility of our work. We support each other’s growth, and co-creation is the true basis of our innovation. We have courage to see opportunities and take initiative. We are authentic and honest, and we strongly believe in that by being your own true self you can accomplish so much more. We don’t always get it right the first time, and if mistakes are made, we make sure to learn and grow from them. We want everyone to voice their opinions freely. That is why we have built an environment that empowers you and everyone around you, and where you can feel safe and cared for. Are you eager to be part of this ambition? We have an amazing team, and we are excited about our work and the impact it has on building sustainable societies. We are looking to find a colleague with this shared passion for smart technologies and a sustainable future. Contact & next steps We hope to hear from you soon by submitting your application through our careers portal. We aim to keep you updated on the process throughout. For further questions, please reach out to Jesse Asikainen, General Manager, Power Systems, through jesse.asikainen@wartsila.com with any questions related to this position (only for questions from direct job applicants, applications through email will not be recorded or responded to). Welcome to join us in shaping the decarbonisation of marine and energy! Last application date: 25/10/2026 At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities. Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country. This is Wärtsilä Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com.