Mechanical Maintenance Supervisor

Wärtsilä; Daerah Khusus Ibukota Jakarta; On-site; IDR 100.000.000 - 200.000.000; Full time

Job summary

A leading energy solutions provider in Jakarta is seeking a Mechanical Maintenance Supervisor to ensure safe plant operations while leading and mentoring the maintenance team. Ideal candidates should have over 5 years of maintenance experience, including supervisory roles, alongside strong technical skills. This position promises a dynamic work environment with opportunities for professional development.

Qualifications

• 5+ years of experience in plant maintenance, with at least 2 years in a supervisory role.
• Strong technical troubleshooting skills and a proactive, problem-solving mindset.
• Proven ability to lead, mentor, and inspire a team.

Responsibilities

• Champion Safety by ensuring adherence to safety protocols.
• Maintain machinery and auxiliary equipment to high standards.
• Inspect maintenance tasks for safety and quality.

Skills

Technical troubleshooting

Team leadership

Organizational skills

Safety compliance understanding

Detail-oriented mindset

Problem-solving

Proficiency in English

Education

Diploma or degree in Mechanical or Electrical Engineering

Job description

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?

Mechanical Maintenance Supervisor

What You’ll Do

As a Mechanical Maintenance Supervisor, you’ll play a pivotal role in ensuring the smooth and safe operation of our plant. Here’s how you’ll make an impact:

• Champion Safety: Lead by example to ensure the plant operates safely during your shift, strictly adhering to safety protocols, including isolation, lockout, and tag-out procedures.
• Keep Equipment in Top Shape: Maintain machinery and auxiliary equipment to the highest standards, prioritizing cleanliness, reliability, and operational excellence.
• Deliver Quality Work: Inspect completed maintenance tasks to ensure they meet safety, technical, and quality standards.
• Optimize Resources: Monitor and manage the availability of tools, parts, and materials to keep the maintenance team running efficiently.
• Inspire and Develop Your Team: Coach and mentor maintenance staff, helping them troubleshoot complex issues and grow their technical expertise.
• Drive Efficiency: Prioritize and assign tasks effectively to meet maintenance schedules and performance goals.
• Onboard New Talent: Support new team members by introducing them to operational procedures, safety standards, and company best practices.

What We’re Looking For

To excel in this role, you’ll need:

• A diploma or degree in Mechanical or Electrical Engineering (or a related field).
• 5+ years of experience in plant maintenance, with at least 2 years in a supervisory role.
• Strong technical troubleshooting skills and a proactive, problem‑solving mindset.
• Proven ability to lead, mentor, and inspire a team to achieve their best.
• Exceptional organizational skills and a sharp eye for detail.
• A solid understanding of safety compliance and maintenance best practices.
• Proficiency in English, both written and verbal.

Why Join Us

This is more than just a job, it’s an opportunity to lead with purpose, tackle exciting technical challenges, and make a real impact. If you thrive in a dynamic environment, enjoy solving problems, and take pride in developing others, we’d love to hear from you.

Take the next step in your career and join us in driving excellence every day!

Last application date: 18/11/2025

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.