Mechanical Design Engineer, R&D

Wärtsilä; Vaasa; Hybrid; EUR 52,000 - 70,000; Full time

Job summary

Wärtsilä is a global technology leader in marine and energy markets, seeking a Mechanical Design Engineer, R&D, to drive fuel injection system and component design in Vaasa. The role involves NX-based design, light FEM work, and cross-functional collaboration with Testing & Validation and supplier networks.

The position offers hybrid work options; travel ~10% to Finland and Central Europe, and a chance to contribute to a decarbonised future through innovative fuel systems design.

Qualifications

• Degree in Mechanical Engineering or similar field.
• Several years of mechanical design or product development experience.
• Experience with hydraulics or hydraulic understanding.
• Proficiency with NX or similar CAD tools.
• Good problem-solving skills and proactive mindset.
• Willingness to learn and collaborate across teams.
• Travel readiness around 10%.

Responsibilities

• Create 3D models and detailed drawings.
• Perform light FEM calculations and support Calculation & Simulation.
• Participate in system and component design activities.
• Support fuel injection manufacturers during design implementation.
• Support Testing & Validation activities.
• Support Service with field experience-related matters.
• Participate in design reviews with suppliers.

Skills

NX CAD

3D modeling

FEM calculations

Design reviews

Hydraulics understanding

Independent work

Travel ~10%

Education

B.Sc. or M.Sc. in Mechanical Engineering or similar

Job description

• Support fuel injection manufacturers during design implementation

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 a 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?

We are looking for a Mechanical Design Engineer, R&D, with the main responsibility for fuel injection system and component design. You will join our innovative Fuel Systems team, which is working towards a decarbonised future. The preferred location for this position is Vaasa, Finland, but Turku and Helsinki, Finland are also possible locations. We offer the possibility of hybrid work.

Your Role And Responsibilities

As a Mechanical Design Engineer, R&D, your work will include system and component design in NX, light FEM calculations, and design reviews with fuel injection suppliers manufacturing Wärtsilä designs. The role combines design work with collaboration across Testing & Validation, Calculation & Simulation, Service, and supplier networks.

On a typical day, you might start with design activities and finish by supporting testing and validation tasks. While the role requires a high level of independence, you will be supported by experienced experts and the Calculation & Simulation department.

You will work as part of the Fuel Systems team with diverse expertise. The tasks can also be adjusted based on your individual skills and interests.

Your work will focus on these responsibilities:

• Create 3D models and detailed drawings
• Perform light FEM calculations and support the Calculation & Simulation department
• Participate in system and component design activities
• Support fuel injection manufacturers during design implementation
• Support Testing & Validation activities
• Support Service with field experience-related matters
• Participate in design reviews with suppliers

To be able to succeed in the position:

• A B.Sc. or M.Sc. degree in Machine Construction or a similar field
• A few years of experience in mechanical design or product development
• Experience in or understanding of hydraulics
• Experience with NX or similar CAD tools
• Good problem-solving skills
• A proactive and innovative mindset
• Confidence to ask questions and share ideas
• Willingness to learn and continuously develop your expertise
• A collaborative approach and eagerness to share knowledge with team members
• Readiness to travel approximately 10% of the time

In this role, some travel is required to meet with suppliers in Finland and Central Europe. Therefore, we hope you are ready to travel approximately 10% of the time, although most meetings are held virtually.

Why you and us?

We at Wärtsilä believe in empowerment, ownership, and taking responsibility for our work. We support each other’s growth, and co-creation is the true basis of our innovation. We have the courage to see opportunities and take initiative.

We are authentic and honest, and we strongly believe that by being your 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.

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.

Last application date: 01/11/2026

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.

All new Wärtsilä employees in Finland will attend occupational health checks, including drug tests/screenings where applicable. When a person is located outside of Finland, the country legislation is followed.