Mechanic, Testing & Validation

Wärtsilä Corporation; Vaasa; On-site; EUR 32,000 - 45,000; Full time

Job summary

Wärtsilä Corporation in Vaasa, Finland, is seeking a Mechanic to join our Sustainable Technology Hub. This permanent role focuses on testing and developing test engines, performing precision mechanical installations, and contributing to safety and efficiency in our engine labs.

The ideal candidate will have technical education relevant to engine technology, with experience reading drawings and using hand and electrical tools. Fluency in Finnish/Swedish is preferred, with English as an advantage.

Qualifications

• Technical education suitable for the tasks (vocational school or equivalent technical education/relevant work experience).
• Interest in engine technology and knowledge of its fundamentals; four‑stroke engine knowledge is a plus.
• Familiarity with control and measurement systems is an advantage.
• Knowledge of electrical/automation systems is an advantage.
• Ability to read and interpret technical drawings.
• Ability to use manual and electrical tools.
• Good ability to work both in a team and independently, including shift work when required.
• Fluent Finnish and/or Swedish language skills.
• English is considered an advantage.

Responsibilities

• Testing the components, performance, and functionality of test engines in the engine laboratory, and operating the test engine and test equipment.
• High-quality mechanical installation work required for testing.
• Maintenance, development, and modification work on test engines and auxiliary systems.
• Ensuring occupational safety by following instructions and regulations, and reporting safety observations and making improvement suggestions.
• Using various control and measurement programs and tools.
• Development of testing methods and environment.
• Various tasks related to engine and technology development.

Skills

Engine tech

Four-stroke engines

Control systems

Electrical systems

Technical drawings

Hand tools

Teamwork

Shift work

Finnish/Swedish

English advantage

Education

Technical education

Job description

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Wärtsilä is a world leader in marine technology and leading the industry's transformation towards a decarbonised and sustainable future. With the world’s widest portfolio and service network, we – Wärtsilians – deliver efficient, safe and sustainable integrated products and solutions to enhance the business of our customers. The opportunities presented through digitalisation and new technologies are offering a new era of shipping. Did you know that shipping is the world’s most efficient mode of transportation and that 88% of the world's trade is carried by sea?

We want to change the course towards an interconnected and cleaner maritime future and are constantly on the lookout for future-oriented talent to join our team and to work towards enabling sustainable societies through innovation in technology and services – together. Are you ready to jump onboard?

As a Mechanic, you will work at the forefront of Wärtsilä's engine and technology development as our operations continue to expand. We offer you the opportunity to become part of an expert team dedicated to developing future engine technologies and advancing the fastest possible transition away from fossil fuels. The position is permanent, and based in Vaasa, Finland, at our Sustainable Technology Hub in Vaskiluoto.

As a Mechanic, you will focus on these responsibilities:

• Testing the components, performance, and functionality of test engines in the engine laboratory, as well as operating the test engine and test equipment
• High-quality mechanical installation work required for testing
• Maintenance, development, and modification work on test engines and auxiliary systems
• Ensuring occupational safety by following instructions and regulations, as well as reporting safety-related observations and making improvement suggestions
• Using various control and measurement programs and tools
• Development of testing methods and environment
• Various tasks related to engine and technology development

To be successful in this role, we expect you to have:

• Technical education suitable for the tasks (vocational school or equivalent technical education/relevant work experience)
• Interest in engine technology and knowledge of its fundamentals; deeper knowledge of four‑stroke engine technology is considered an advantage
• Familiarity with control and measurement systems is considered an advantage
• Knowledge of electrical/automation systems is considered an advantage
• Ability to read and interpret technical drawings
• Ability to use manual and electrical tools
• Good ability to work both in a team and independently, including shift work when required
• Fluent Finnish and/or Swedish language skills
• We work in a multicultural environment, so proficiency in English is considered an advantage

The position requires that the person we are looking for is able to:

• Prepare and carry out the necessary measurement situations and mechanical installations according to schedule
• Ensure the quality of testing activities so that results are reliable and comply with industry standards as well as Wärtsilä's guidelines
• Collaborate in a way that ensures fair teamwork
• Work in shifts when required

Why you and us?

You are valued – as your true self. At Wärtsilä YOU matter. We value diversity and are committed to supporting an inclusive work community.

Your growth is supported. We believe in continuous learning and teamwork. The Wärtsilian community has your back when it comes to development opportunities, so you can develop beyond your potential.

You get to make a difference. Innovation and sustainability are important to us. Every day, we – Wärtsilians – put our hearts and minds into enabling sustainable societies through innovation in technology and services.

Contact & next steps

no later than 13.9.2026.

For further information, please contact:

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.

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 .