Water Treatment Commissioning Engineer – Helsinki

Mercury GmbH; Helsinki; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Mercury Helsinki is seeking a Commissioning Engineer to lead water treatment installation, commissioning and integration across complex projects. You will coordinate with clients, subcontractors and suppliers to ensure on-time delivery and strict safety compliance.

The role emphasizes hands-on leadership, planning, and mentoring on site, with ACMS usage and MS Project support. Fluency in English and strong organizational skills are essential for success in a multinational team.

Qualifications

• Experience in water installations and commissioning activities.
• Excellent organizational and project planning skills.
• Ability to lead, guide and mentor others.
• Ability to work as part of a team and on own initiative.
• Familiar with MS Office, MS Project and Primavera planning software.
• Excellent negotiation and problem-solving skills.
• Ability to work well under pressure and within strict deadline environment.

Responsibilities

• Looking after water treatment specialist to oversee installation and commissioning.
• Completing commissioning and steps on the ACMS platform.
• Monitor and update daily analysis reports and monthly schedules.
• Responsibility for progress and delay analysis reports.
• Manage project scope, construction progress, resources, critical path and milestones.
• Produce weekly look-ahead schedules.
• Create baseline schedule for Engineering, Construction, Testing and Commissioning.
• Ensure adherence to safety and quality standards.
• Attend and coordinate weekly meetings with client, subcontractors and suppliers.

Skills

Water installations and commissioning

Organizational and project planning

Leadership and mentorship

Teamwork and initiative

Negotiation and problem-solving

Ability to work under pressure

Tools

MS Office

MS Project

Primavera P6

Job description

Mercury Helsinki is seeking a Commissioning Engineer to lead water treatment installation, commissioning and integration across complex projects. You will coordinate with clients, subcontractors and suppliers to ensure on-time delivery and strict safety compliance.

The role emphasizes hands-on leadership, planning, and mentoring on site, with ACMS usage and MS Project support. Fluency in English and strong organizational skills are essential for success in a multinational team.