Wärtsilä is a Finnish global technology company headquartered in Helsinki, Finland. It develops and delivers advanced solutions in the marine and energy markets, including fuel-flexible engines, power plants (liquid, gaseous and renewable fuels), energy storage, smart grids, hybrid and battery solutions, emissions-reduction technologies, automation and digital services.

In Finland, Wärtsilä has a strong presence: its headquarters in Helsinki hosts many corporate, R&D, digital, and engineering functions; other Finnish locations like Vaasa and Turku are active for manufacturing, service, field-engineering and supply-chain roles.

They recruit a wide variety of roles — for example mechanical / field service engineers (marine & land-based), roles in digital product development (software, data, cloud/edge, predictive maintenance), supply chain planning & purchasing, project management, quality / safety / HSE, leadership / people management, support functions like HR, legal, finance, communications, and also student / trainee roles such as business intelligence & strategy.