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Tender Engineer

N-Sea

Dordrecht
Posted on: March 29 2026

Be part of the winning team in subsea solutions!

Are you a results-oriented engineer with a passion for offshore projects?
N-Sea, a leading provider of subsea solutions, is seeking a UXO Tender Engineer to join our growing team!

You as a Tender Engineer prepares the technical and commercial proposals. Your primary focus are UXO tenders where you are involved from the early pursuit phase until final negotiation, contract signature and handover to the project execution team. During the preparation of the tender, you will be part of an interdisciplinary tender team to prepare the technical and commercial proposals.

You and your team analyse the project scope and propose a safe installation of the works by identifying the opportunities & risks and taking into account the project schedule and the pricing.

You will be the central point of contact and you establish strong relationships with the supporting departments (as EHQS, Engineering, Legal and Operations), subcontractors and suppliers during the tendering process. Through facilitating excellent team communication and efficiency, you will support ownership and maximise innovation, targeting a high-quality tender submission and contract. Finally, you and the Tender Manager will take the lead in tender clarifications and join negotiations with clients after the submission of the tenders.

Your main duties in this position
• Play a key role in the preparation and submission of tender proposals to our clients;
• Analyse tender documentation received from potential clients and work on method selection by working out scenarios and choose the best scenario for the tender. Hereby you take into account the vessel type / equipment, EHQS requirements, project schedule, costs and opportunity & risks;
• Prepare and coordinate the risk assessment meetings for the tender;
• Responsible for the cost calculations and pricing schedule of the client;
• Prepare project schedule for the works and draft installation sequence drawings
• Liaise & organise meetings with subcontractors, partners and supporting departments;
• Reporting for internal and external approval purposes.

Requirements
• You hold a Bachelor or Master degree in Engineering or Technical Business Administration;
• You share the ambition and values of N-Sea;
• At least 2 years of experience in offshore projects (experience in offshore wind projects is a plus);
• Experience in the tendering, preparation and follow-up of offshore wind projects is preferred;
• Strong analytical thinking and problem-solving skills;
• A proactive and results-oriented work style with the ability to work independently and under pressure;
• Flexible attitude to work in various setup in project teams;
• Work independently and you have a natural ability to get things done, in a structured way and within the required deadlines;
• Excellent communication skills in English (written, verbal, and reading);
• You are pragmatic and work in a proactive manner with a hands-on mindset and problem-solving approach;
• Freelance is not an option.

About N-Sea
N-Sea is an integrated total subsea solutions provider in Survey, UXO ID & Disposal, IRM & Construction, and Subsea Cable Repair & Installation.

We deliver total solutions for subsea infrastructures and assets that meet the needs of our clients and the international oil & gas, and renewable industries, considering a safe environment.

We want to create a sustainable business and increase our profitability through solid project management and full client awareness.

Do you want to be part of our team?
Please send your application including your CV to recruitmentNL@n-sea.com for the attention of HR department. For more information about the position, you can contact Joel Martens.

Acquisition in response to this vacancy is not appreciated. No rights can be derived from candidates presented without obligation.

 

About N-Sea
N-Sea logo

Who we are

N-Sea is an integrated total subsea solutions provider in Survey, UXO ID & Disposal, IRM & Construction, and Subsea Cable Repair & Installation.

We deliver effective and cost-efficient solutions for subsea infrastructures and assets that meet the needs of the international oil & gas, and renewable industries, considering a safe environment.

Mission

We make a clear contribution to a safer, better, and cleaner world

Vision

The go-to total subsea solutions provider. Supporting the complete life cycle of our clients assets, by creating a community of entrepreneurship, knowledge, experience and innovation

Strategy

Our company is committed to environmental sustainability, social responsibility, and strong governance practices. We have the ambition to be the go-to total subsea solutions provider. We want to create a sustainable business and increase our profitability through solid project management and full client awareness. 

We have the ambition to be the go-to total subsea solutions provider. We want to create a sustainable business and increase our profitability through solid project management and full client awareness.

To realise this ambition we develop our organisation to the level of best in class being fully synchronised with our ambition and strategy by contributing to the following key success factors constantly:

• Qualified and engaged people
• Long term client relationships
• Strategic partnerships
• Innovative solutions
• Safety and quality 100%
• Visible presence
• Full control over marine assets

N-Sea enables development of new offshore energy infrastructure and enables lifetime extension utilising sustainable and innovative survey solutions.

How can we support you?
N-Sea acquires data that is essential for subsea energy developers and asset owners to optimise the design and productivity of their offshore infrastructure, whether it is new developments, lifetime
extension or decommissioning. We understand that in many instances frequent inspection and monitoring prevents ad-hoc maintenance and expands the lifetime of subsea assets.

With N-Sea’s fleet of dedicated survey vessels, equipment, techniques and people, we can deliver a tailored and fit-for-purpose solution to our clients. Our solutions allow offshore data acquisition, onshore processing, and reporting in a fast and reliable manner from offshore to coast, from deep to shallow and during all phases of a project: Solution driven, tailored, reliable, innovative, At N-Sea, we understand that the offshore element is just a fraction of the project. The timely delivery of a clear and concise report is the key deliverable.

How do we fulfil our mission? We make a clear contribution to a safer, better and cleaner world.

Our survey capabilities include:

  • Analogue geophysical survey

  • 2D(U)HR and 3DUHR

  • Pipeline and cable inspections

  • Pipeline and cable depth of burial survey

  • UXO surveys in co-operation with UXOcontrol

  • Environmental survey

  • Geotechnical survey

  • ROV & ROTV survey

  • Data management (processing, analysing, integrating and reporting)

Why N-Sea?

  • Regional experience in the Baltic, Irish Sea and the North sea.

  • Execution in line with high safety standards both offshore and nearshore.

  • In-house engineering, procurement, and project management.

  • Strategic partnerships to strengthen our integrated survey delivery.

  • Data management to transform massive data into smart data .

  • Expertise and proven track record of over 15 years.

  • Flexibility due to a versatile pre mobilised fleet.

  • Remote solutions and unmanned solutions to minimise travelling of vessels and personnel, contributing to sustainable solutions.

  • On-time delivery.

Want to learn more?

Please contact one of our representatives:

Paul van Waalwijk

p.vanwaalwijk@n-sea.com

+31 (0)6 1825 2440

LinkedIn

  • Number of employees: 500+ professionals across international locations.

  • Sectors: Subsea Survey, UXO (Unexploded Ordnance) ID & Disposal, IRM (Inspection, Repair & Maintenance), Subsea Cable Repair & Installation, and Data Management.

  • Preferred educational level: MBO for technical/operational roles; HBO/Bachelor or higher for Engineering, Legal, and Management positions.

  • Preferred education: Hydrographic Surveying, Geotechnical Engineering, Mechanical/Electrical Engineering, Law, or Finance/Payroll.

  • Career level: All levels, including Interns, Project Engineers, Senior Specialists, and Head Office Staff.