Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and more sustainable future that we can all be proud of.We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?Join us in building digital products that accelerate the transition towards a more sustainable future.We're looking for a Product Developer with a passion for creating exceptional user experiences. You enjoy turning complex data and workflows into intuitive, engaging applications while collaborating closely with backend, data, and UX specialists. If you love building modern web applications and want the opportunity to contribute across the full stack, this role is for you.As a Product Developer, you willHelp shape the user experience of products used across hundreds of installations worldwide. Participate in feature development with TDD and continuous integration across the stackDesign and develop modern, responsive, and intuitive web applicationsTransform complex operational and streaming data into meaningful user experiences and visualizationsWork closely with product owners, UX designers, backend developers, and data specialists to deliver end-to-end solutionsContribute to frontend architecture, component libraries, and development best practicesEnsure high application performance, accessibility, and usabilityParticipate in feature development across the stack when needed, including APIs and backend integrationsTake ownership of your solutions from development through deployment and production supportContinuously improve products through user feedback, experimentation, and innovationWhat You BringA Bachelor's or Master's degree in Computer Science or a related field, or at least 3 years of relevant experienceStrong experience with modern frontend development using TypeScript,React JavaScript, and modern web frameworksKnowledge of Cypress and/or GherkinA passion for creating intuitive user experiences and high-quality interfacesExperience integrating frontend applications with APIs and backend servicesFamiliarity with software engineering best practices, including testing and code qualityUnderstanding of Agile development methodologies and collaborative teamworkStrong problem-solving skills and a proactive mindsetInterest in working across disciplines, including UX, backend development, and data-driven applicationsNice to haveExperience with backend technologies such as Java or PythonExperience with cloud-native development, Docker, Kubernetes, and AWSExperience with data visualization and real-time data applicationsFamiliarity with Kafka or event-driven architecturesKnowledge of UX design principles and user-centered developmentExperience with industrial communication protocols such as OPC-UA, Modbus, or NMEAWhy join us?At Wärtsilä, you'll have the opportunity to build products that make a real impact on the future of energy and marine industries.Work on meaningful products that contribute to sustainability and decarbonizationOwn features end-to-end and see the direct impact of your workCollaborate with talented colleagues across software, data, UX, and domain expertiseGrow your skills in a modern technology environmentEnjoy a culture built on trust, ownership, learning, and innovationWe believe great ideas can come from anyone. That's why we foster an environment where people feel empowered to experiment, share their perspectives, and continuously develop themselves.Interested?We would love to hear from you. Apply through our careers portal and become part of a team that's shaping the future of marine and energy technology.Welcome to join us in shaping the decarbonisation of marine and energy.Last application date: 31/07/2026At 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 WärtsiläWärtsilä 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.