Service Engineer 4-stroke

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. 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.

Business Unit Parts and Field Service is a global organisation with harmonised ways of working and tools to deliver the best possible services for our customers. In our global team we value, respect, and embrace different opinions and diversity. Safety, environment, and wellbeing are our foundation, and we never compromise them.

Are you a dynamic professional with a passion for hands-on technical work and global travel?

Wärtsilä France is seeking a Service Engineer 4-stroke (H/F) to join our Field Service Marine team.

In this role, you will work on-site with customers around the world, ensuring the optimal performance and reliability of Wärtsilä engine installations.

While the primary location for this role is Marseille, we are also open to considering candidates based in other locations such as Nantes or Harfleur.

Your role and responsibilities  

As a Service Engineer 4-stroke, you will:

Execute and oversee maintenance, troubleshooting, and repair tasks, either independently or as part of a team of Wärtsilä 4-stroke engines.Lead service technicians during on-site operations, ensuring quality, safety, and compliance with technical procedures.Provide detailed work reports, including measurements, photos, and progress updates.Represent Wärtsilä professionally, maintaining high standards of conduct and readiness to travel on short notice.

Requirements for the position   

BTS (Brevet de Technicien Supérieur) or ENSM (École Nationale Supérieure Maritime) diploma or an equivalent qualification in mechanics or engineering. Solid knowledge of internal combustion engines (4-stroke).Basic understanding of automation systems.Proficiency in IT tools, including MS Office.Good English skills for technical communication.Ability to work onboard vessels and adapt to diverse environments, with a willingness to travel globally (approximately 85% of the time).

As an ideal candidate you might also have…

Previous industry experience (engine tuning, development, or maintenance) is a plus.Strong communication and leadership abilities, with excellent teamwork and customer relationship management skills.Highly organized and capable of building effective interpersonal relationships.Accurate and detail-oriented, with strong critical thinking skills.Proactive, responsible, and self-motivated.Focused on cost awareness and operational efficiency.

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Vous êtes un professionnel dynamique, passionné par le travail technique sur le terrain et prêt à voyager à l'international ? 

Wärtsilä France recherche un(e) Service Engineer pour rejoindre notre équipe Field Service Marine. 

Dans ce rôle, vous interviendrez sur site auprès de clients du monde entier, en veillant à la performance et à la fiabilité des installations moteurs de Wärtsilä.

Bien que le poste soit principalement basé à Marseille, nous sommes également ouverts à des candidatures provenant d'autres localisations telles que Nantes ou Harfleur.

Votre rôle

En tant que Service Engineer, vous serez chargé de :

Réaliser et superviser les travaux de maintenance, de dépannage et de réparation, seul ou en équipe.Encadrer des techniciens de service sur site, en veillant à la qualité, à la sécurité et au respect des procédures techniques.Rédiger des rapports détaillés sur les interventions (mesures, photos, méthodes de travail, etc.) et assurer le suivi des travaux.Représenter Wärtsilä de manière professionnelle, en maintenant des standards élevés de conduite et une disponibilité pour des déplacements à court préavis.

Profil recherché :

BTS (Brevet de Technicien Supérieur) ou diplôme de l'ENSM (École Nationale Supérieure Maritime) ou une qualification équivalente en mécanique ou en ingénierie.Solides connaissances des moteurs à combustion interne (4 temps et 2 temps).Compréhension de base des systèmes électriques et de l'automatisation.Maîtrise des outils informatiques, y compris la suite MS Office.Bon niveau d'anglais pour la communication technique.Capacité à travailler à bord des navires et à s'adapter à des environnements variés, avec une volonté de voyager à l'échelle mondiale (environ 85 % du temps).

En tant que candidat idéal, vous pourriez également avoir…

Une expérience préalable dans l'industrie (réglage, développement ou maintenance de moteurs) est un atout.Excellentes compétences en communication et en leadership, avec de solides aptitudes au travail en équipe et à la gestion des relations clients.Grande capacité d'organisation et aptitude à établir des relations interpersonnelles efficaces.Précision et souci du détail, avec de solides compétences en pensée critique.Proactivité, sens des responsabilités et autonomie.Sensibilité aux coûts et efficacité opérationnelle.

Why Join Us?

Work with cutting-edge engine technologies and global customers.Develop expertise in diagnostics, service operations, and performance optimization.Enjoy a dynamic, fast-paced environment with opportunities for professional growth.

Contact & next steps

Does this sound like the job for you? If yes, submit your application before the deadline through our Careers portal. Applications submitted via email or through recruitment agencies will not be considered.

Our recruiting tool recognizes the time zone where the job ad has been published and closes the application period according to the same time zone. We will be conducting interviews with qualified candidates throughout the process and aim to keep you informed along the way.

Last application date: 06/01/2026 

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  

#wärtsilämarine #FSWScareers #FuelYourPower

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