Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our partners to accelerate their decarbonisation journeys through our market-leading technologies and power system modelling expertise. These cover decarbonisation services, future-fuel enabled balancing power plants, hybrid solutions, energy storage and optimisation technology, including the GEMS Digital Energy Platform. Did you know Wärtsilä has delivered 79 GW of power plant capacity and more than 130 energy storage installations in 180 countries around the world? In this fast changing world of energy, we 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. Want to join the ride?  Job Title: Maintenance Supervisor Your main responsibilities are: <ul><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Coordinate daily mechanical maintenance activities to ensure that equipment, machinery, and instruments function reliably and safely at the plant. Ensure that facilities, buildings, and plant equipment are in good working order.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Execute all Major Maintenances of the Engines and Auxiliaries.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Ensure that the performance targets of the plant are achieved according to the contract within the responsible area.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Monitor the condition of maintenance equipment, materials, parts, and tools, ensuring they are maintained according to applicable guidelines and policies. Take corrective actions when needed.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Ensure that work is executed at the plant according to Wärtsilä's Quality, Health, Safety, and Environmental guidelines, customer site procedures, and the assigned maintenance plan.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Inspect completed work to verify that repairs have been correctly done and machinery/equipment meet specifications and safety standards.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Coach and mentor maintenance staff, assisting them in diagnosing complex machinery or equipment issues.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Develop and implement maintenance routines and schedules at the plant.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Prioritize and assign tasks effectively to ensure resources are used efficiently and work schedules and targets are met.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Maintain good relationships with internal and external stakeholders.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Development Responsibilities:</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Develop efficient maintenance standards, procedures, working instructions, processes, guidelines, and policies.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Train and develop maintenance personnel.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Foster a sustainable safety culture and an OpEx-driven mindset.</li></ul> You will shine in this role when you have: <ul><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Minimum Diploma in Engineering or Bachelor's Degree in Engineering.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Candidate coming from FS and internal network are welcome</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Knowledge of diesel engines, preferably Wärtsilä engines.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">Strong hands-on experience in engine overhauls, particularly on engine types W20 or W26.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">5-8 years of relevant experience in a similar role, preferably with Field Service (FS) experience.</li><li style="font-family:arial , helvetica , sans-serif;font-size:10.0pt;">This position is a ON / OFF rotational schedule at a mine site.</li></ul> 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 &amp; 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 &amp; 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.   Last application date: 20th August 2026 at 23:59 PNG 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 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 <a href="http://www.wartsila.com">www.wartsila.com</a>.

We enable sustainable societies through innovation in technology and services together with all our stakeholders &ndash; today and tomorrow. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. We work together with our strong ecosystem of partners every day, providing a wide portfolio of leading technologies and innovative solutions that offer our customers superior uptime, reliability and foreseeable lifecycle costs across their operations. Our global passionate team of 17,500 energy and maritime experts in 200 locations in more than 70 countries is committed to shaping decarbonisation transformation of our industries across the globe.

Maintenance Supervisor

Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our partners to accelerate their decarbonisation journeys through our market-leading technologies and power system modelling expertise. These cover decarbonisation services, future-fuel enabled balancing power plants, hybrid solutions, energy storage and optimisation technology, including the GEMS Digital Energy Platform. Did you know Wärtsilä has delivered 79 GW of power plant capacity and more than 130 energy storage installations in 180 countries around the world? In this fast changing world of energy, we 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. Want to join the ride?  Job Title: Maintenance Supervisor Your main responsibilities are: <ul><li>Coordinate daily mechanical maintenance activities to ensure that equipment, machinery, and instruments function reliably and safely at the plant. Ensure that facilities, buildings, and plant equipment are in good working order.</li><li>Execute all Major Maintenances of the Engines and Auxiliaries.</li><li>Ensure that the performance targets of the plant are achieved according to the contract within the responsible area.</li><li>Monitor the condition of maintenance equipment, materials, parts, and tools, ensuring they are maintained according to applicable guidelines and policies. Take corrective actions when needed.</li><li>Ensure that work is executed at the plant according to Wärtsilä's Quality, Health, Safety, and Environmental guidelines, customer site procedures, and the assigned maintenance plan.</li><li>Inspect completed work to verify that repairs have been correctly done and machinery/equipment meet specifications and safety standards.</li><li>Coach and mentor maintenance staff, assisting them in diagnosing complex machinery or equipment issues.</li><li>Develop and implement maintenance routines and schedules at the plant.</li><li>Prioritize and assign tasks effectively to ensure resources are used efficiently and work schedules and targets are met.</li><li>Maintain good relationships with internal and external stakeholders.</li><li>Development Responsibilities:</li><li>Develop efficient maintenance standards, procedures, working instructions, processes, guidelines, and policies.</li><li>Train and develop maintenance personnel.</li><li>Foster a sustainable safety culture and an OpEx-driven mindset.</li></ul> You will shine in this role when you have: <ul><li>Minimum Diploma in Engineering or Bachelor's Degree in Engineering.</li><li>Candidate coming from FS and internal network are welcome</li><li>Knowledge of diesel engines, preferably Wärtsilä engines.</li><li>Strong hands-on experience in engine overhauls, particularly on engine types W20 or W26.</li><li>5-8 years of relevant experience in a similar role, preferably with Field Service (FS) experience.</li><li>This position is a ON / OFF rotational schedule at a mine site.</li></ul> 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 &amp; 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 &amp; 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.   Last application date: 20th August 2026 at 23:59 PNG 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 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 <a href="http://www.wartsila.com">www.wartsila.com</a>.

Maintenance Supervisor

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Wartsila

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