Mechanical Commissioning Engineer

Wärtsilä; Helsinki; On-site; EUR 60,000 - 90,000; Full time

Job summary

Wärtsilä Energy seeks a Mechanical Commissioning Engineer to plan, lead and manage mechanical construction and on-site commissioning across global projects. You will ensure smooth execution from installation to handover, coordinating with civil and electrical disciplines and supervising subcontractors.

The role requires strong HSSE awareness, excellent communication with stakeholders, and willingness to travel internationally (250–300 days per year) to deliver safe, compliant plant handovers.

Qualifications

• A degree in Mechanical Engineering or related field.
• Solid experience in mechanical installation and commissioning, preferably within power plants or large industrial projects.
• Excellent communication skills and confidence in working with both internal and external stakeholders.
• Strong interpersonal and negotiation skills for dealing with subcontractors and customers.
• An organised approach with attention to detail and the ability to prioritise under pressure.
• HSSE awareness and the ability to enforce safety standards on-site.
• Willingness to travel abroad for extended periods (250–300 days per year).
• Proficiency in English, both written and spoken.

Responsibilities

• Planning and monitoring the progress of mechanical works at the site.
• Coordinating construction and installation works with Civil and Electrical disciplines using LPS methods.
• Leading weekly mechanical site meetings and ensuring quality control at the site.
• Advising and supporting the client in planning, organising and executing tests.
• Managing and documenting tests, punch lists, and handover procedures.

Skills

Communication skills

English proficiency

HSSE awareness

Project coordination

Negotiation skills

Education

Bachelor's degree in Mechanical Engineering

Equivalent professional experience

Tools

Last Planner System

Job description

Wärtsilä Energy is seeking a Mechanical Commissioning Engineer to plan, lead, and manage mechanical construction and commissioning activities on-site, ensuring smooth execution from installation to handover across our global projects.

Role and Responsibilities

As a Mechanical Commissioning Engineer, you will:

General Responsibilities

• Planning and monitoring the progress of mechanical works at the site
• Proactively managing scope, material flow, and securing necessary resources
• Managing and guiding subcontractors
• Planning and coordinating Last Planner System (LPS) activities with subcontractors and monitoring progress
• Facilitating root cause analyses and resolving constraints in mechanical works
• Contributing to project schedules and maintaining accurate reporting
• Maintaining strong customer relations and team spirit on-site
• Promoting economical construction and cost‑saving working practices
• Ensuring mechanical as‑built drawings are completed and communicated
• Safeguarding compliance with HSSE policies and minimising risks in mechanical installations and commissioning

Construction & Installation

• Coordinating construction and installation works with Civil and Electrical disciplines using LPS methods
• Ensuring design and installation instructions are adhered to
• Arranging inspections of received materials and goods
• Reviewing invoices from subcontractors and suppliers
• Maintaining records of change orders and claims
• Organising and leading weekly mechanical site meetings
• Ensuring quality control at the site
• Advising and supporting the client in planning, organising and executing tests

Testing & Commissioning

• Managing and planning safe inspections and test procedures
• Instructing supervisors and subcontractors on accepted test methods and equipment
• Ensuring testing of installed equipment and documenting results
• Managing punch lists
• Ensuring all required documents are submitted and signed by the customer for plant handover

Qualifications

• A degree in Mechanical Engineering or a related field, or equivalent professional experience
• Solid experience in mechanical installation and commissioning, preferably within power plants or large industrial projects
• Excellent communication skills and confidence in working with both internal and external stakeholders
• Strong interpersonal and negotiation skills for dealing with subcontractors and customers
• An organised approach with attention to detail and the ability to prioritise under pressure
• HSSE awareness and the ability to enforce safety standards on-site
• Flexibility and resilience to work abroad for extended periods (250–300 days per year)
• Proficiency in English, both written and spoken

EEO Statement

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.