(Senior) Operations Expert

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?

Wärtsilä is an innovative technology company and a forerunner in the Marine and Energy markets. Every day, Wärtsilians put our hearts and minds into making our purpose—enabling sustainable societies through innovation in technology and services—a reality. Our ambition is to create increased value for our customers and for society. Since 1834, game-changing ideas and continuous improvement have been at the core of what we do. Together, we can unlock new business opportunities and build a more sustainable future we can all be proud of.

We are committed to helping transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it happen. We are always looking for future-oriented talent—would you like to join us?

We are now looking for a (Senior) Operations Expert to join our Operations Management Support, MEA team and help shape a better future. This is a permanent position, preferably based in Tokyo, Japan.

What will you be doing:

• The Senior Operations Expert plays a critical role in ensuring optimal performance, reliability, and contractual compliance of customer assets under service agreements. The role combines deep technical expertise with strong customer-facing, analytical, and coordination capabilities.

As (Senior) Operations Expert, your key focus areas include:

• Providing advanced technical and operational support to Agreement customers
• Leading root cause analysis and resolution of complex operational and engine-related issues in coordination with Technical Services
• Driving operational reliability, availability, and asset uptime improvements
• Ensuring contractual performance targets are consistently achieved
• Delivering data-driven operational recommendations to customers and Agreement Managers
• Identifying and escalating product and service improvement opportunities internally
• Supporting customer engagement through site visits, reviews, and technical discussions

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

• Highly experienced Operations professional with 8–10+ years of hands-on field experience in Dual Fuel engine operations and maintenance, with strong exposure to long-term service agreements and customer support environments. Demonstrated ability to resolve complex technical issues, optimize asset performance, and ensure contractual KPIs are met or exceeded.
• Possesses strong mechanical and automation expertise, advanced analytical skills, and a structured, proactive approach to operational excellence. Adept at translating technical findings into actionable recommendations for customers and internal stakeholders. Experienced in cross-functional coordination, customer-facing technical discussions, and continuous improvement initiatives.

Technical & Operational

• Dual Fuel Engine Operations & Maintenance
• Wärtsilä Engine Experience (preferred)
• Mechanical & Automation Systems Know-how
• Troubleshooting & Root Cause Analysis
• Performance Optimization & Reliability Engineering
• Asset Availability & Uptime Improvement

Agreement & Customer Management

• Long-Term Service Agreement (LTSA) Support
• Contractual KPI & Performance Compliance
• Customer Technical Advisory & Recommendations
• Coordination with Technical Services & Engineering
• Site Audits & Installation Reviews

Analytical & Digital

• Data Analysis & Performance Trending
• MS Office (Excel, PowerPoint, Word)
• Use of Analytical Tools & Operational Applications
• Reporting, Escalation & Documentation

Professional Attributes

• Structured and methodical working style
• Strong ownership and can-do attitude
• Clear technical communication (verbal & written)
• Cross-cultural collaboration capability
• Fluent in English

Why you and us 
You are valued – as your true self. At Wärtsilä we value diversity and are committed in supporting inclusive work community.  

Your growth is supported. We believe in continuous learning & teamwork. 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 for us. Every day, we put our hearts and minds into enabling sustainable societies through innovation in technology and services into reality.  

Contact & next steps
Submit your application before the deadline through our Careers portal. Applications through email will not be considered. After submitting your application you’ll receive a confirmation email. We try our best to get back to everyone within 2-3 weeks after application deadline.  

Please apply by 19/03/2026 at 23:59 Japanese Standard Time. Our recruiting tool recognizes the time zone where the job ad has been published and closes the application period according to same time zone

Last application date: 19/03/2026 

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 www.wartsila.com.