Job | Marine Operations Engineer | Denmark

Multi NV; Rødbyhavn; On-site; DKK 600,000 - 850,000; Full time

Benefits offered by this job

Relocation support

Paid holidays

Good salary based on experience

Job summary

Multi NV is seeking a Marine Operations Engineer for a major international marine infrastructure project in Rødbyhavn, Denmark. Your role will involve preparing and executing the immersion of large concrete elements, ensuring safety and technical accuracy during marine operations.

The position offers opportunities for both employment and freelance arrangements, with a focus on collaboration within a skilled team. Candidates with at least 7 years of engineering experience and a background in naval architecture or civil engineering are encouraged to apply.

Qualifications

• At least 7 years of relevant engineering experience.
• Experience with immersion of large structures or offshore lifting operations.
• Good understanding of stability calculations and mooring calculations.

Responsibilities

• Prepare ballast plans and float-up calculations for large concrete tunnel elements.
• Support offshore immersion operations from the command unit.
• Liaise with the Marine Warranty Surveyor.

Skills

Hydrodynamics expertise

Problem-solving ability

Clear communication skills

Team-focused mindset

Education

Civil engineering, naval architecture, or maritime engineering background

Job description

Job | Marine Operations Engineer | Denmark

• Role: Marine Operations Engineer
• Start: August / September 2026, still to be decided
• Duration: Long-term project
• Contract: Employment contract or freelance assignment
• Focus: Immersion engineering, ballast planning, float-up calculations, stability, mooring, transport, and offshore installation

As Immersion Engineer, you will help prepare and execute the float-up, transport and offshore immersion of large concrete tunnel elements. This is a technically critical role where engineering calculations, operational judgement and clear communication all come together during real marine operations.

This position is available both as a permanent employment role and as a freelance assignment.

Where You’ll Work:

You will work in Rødbyhavn, Denmark, on a major international marine infrastructure project. The project environment is practical, technical, and collaborative, with short decision lines and a team-oriented way of working.

The role can be based full-time in Denmark or arranged in a 4-2 rotation.

What You’ll Be Working On:

You will be part of the team responsible for floating up and/or hoisting concrete tunnel elements, equipping them in port, transporting them offshore and supporting their installation at sea.

During the preparation phase, your focus will be on ballast plans, float-up calculations, weight analysis, stability, mooring, harbour transfers and technical documentation. During the execution phase, you will support offshore immersion operations from the command unit, advising the operational team and helping ensure the work stays within the agreed boundary conditions.

What You’ll Do:

• Prepare ballast plans and float-up calculations for large concrete tunnel elements.
• Work on weight analysis, ballast concrete and water calculations, floating stability and longitudinal section forces.
• Support harbour and basin transfer operations, including winch operations with or without vessel assistance.
• Contribute to mooring, transport and offshore immersion engineering.
• Coordinate technical input between work preparation, design and operational teams.
• Support interface management with other project departments.
• Help ensure design conclusions are correctly translated into method statements, drawings and operation manuals.
• Liaise with the Marine Warranty Surveyor and contribute to work procedures and Go/No Go procedures.
• Monitor float-up, ballasting, transport and installation operations against boundary conditions.
• Advise the Immersion Master and operational team during offshore execution.
• Support contingency handling if unexpected situations occur.
• Review execution data after immersion and contribute to lessons learned for following operations.

What You Bring:

• A background as a civil engineer with hydrodynamics expertise, naval architect, or maritime engineer.
• At least 7 years of relevant engineering experience.
• Experience with immersion of large structures or offshore lifting operations.
• Good understanding of stability calculations, mooring calculations and hydrodynamics.
• Practical problem-solving ability and confidence in technical decision-making.
• Clear communication skills in an international project environment.
• A team-focused mindset and willingness to take responsibility for your work.
• Willingness to work in Denmark and go offshore during immersion operations.
• Willingness to complete an STCW course if required.

Profile

What’s In It For You?

For employment candidates, you can expect:

• A good salary, based on your experience.
• Paid holidays to recharge.
• Relocation support if you are moving for the role.
• The chance to work on a landmark marine infrastructure project.
• A highly international project team with experienced engineering and offshore professionals.
• Real technical responsibility in a project where your work has direct impact on offshore execution.
• A practical working culture with short decision-making lines and room to take ownership.

For freelancers, this role is also available as a long‑term freelance assignment. Availability, rotation, project scope, contract duration, and rate can be discussed based on your experience and the needs of the project.

Interested?

Are you ready to take on a key immersion engineering role in Denmark? Apply now and let’s discuss your experience, availability and the best contract setup for you.