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Senior Marine Design Engineer

Jan De Nul Group – Dredging

Capellen
Full Time
Posted on: April 29 2026
Your Work Context

Our position as world player is the result of our technical innovative knowhow and the most modern dredging fleet in the world. Jan De Nul Group is continually investing in its fleet and its people. The Marine Design and Engineering Department is involved from the preliminary design onwards. Every project is different and every single time the optimal configuration is determined. And if it doesn’t exist, we design it ourselves!

Your Role

For the expansion of the Marine Design and Engineering Department we are currently looking for a Senior Marine Design Engineer.

Your main tasks and responsibilities are:

  • Providing technical expertise for the design (calculations) of new vessels and for the conversion of existing vessels.
  • Designing project specific installations like cable laying equipment, steel and offshore constructions.Leading project specific calculations for hydrodynamics, motion analysis, lifting operations, sea transports, vessel mooring, etc...
  • Preparing and reviewing technical specifications for other departments (purchase department, logistics department).
  • Consultation with internal departments to determine design constraints (operating conditions, functionality etc...)

What do you need?

  • You hold a master’s degree in engineering sciences with option Electromechanics/mechanics, shipbuilding or naval architecture with a minimum of 10 years relevant experience.
  • You have experience with calculation methods, software and theoretical aspects that are applicable on the design of vessels and their installations, knowledge of hydrodynamic behavior of floating vessels is required.
Working at Jan De Nul

Working at Jan De Nul means helping to find solutions to some of the biggest challenges of our time: from energy transition to rising sea levels to smart mobility. It means learning and working together every day, with the aim of ensuring the global quality of life for generations to come.

What do we offer you? 

  • An ongoing training path through our JDN Academy 
  • Our FIT-program allows us to monitor your well-being. The programme is centred around exercise, food and a healthy work-life balance.
  • A permanent contract  with 42 paid holidays (20 statutory, 12 ADV and 10 public holidays).
  • A competitive salary with thirteenth month and double holiday pay (different conditions if you work abroad), including:  
    • Meal vouchers and eco vouchers  
    • Possibility to participate in the Flex Reward programme, including bicycle and car leasing, including fuel card or charging pass in Belgium  
    • Intervention public transport and bicycle allowance  
    • Group and hospitalisation insurance  
    • Option of iPhone with subscription  
    • Various staff discounts   
  • You will be part of an international growing family business. 

The world becomes what you make of it

Jan De Nul is shaping water and land worldwide. We drive the transition to renewable energy with offshore energy infrastructure. We focus on nature-inclusive dredging solutions to build ports and protect our coastline. We develop innovative construction projects for smart mobility and sustainable buildings. And we redevelop our planet by giving polluted sites a new purpose. At Jan De Nul, the world becomes what you make of it. 

Jan De Nul Group promotes diversity and inclusion in the workplace. We are an equal opportunities and anti-discrimination employer.   

About Jan De Nul Group – Dredging
Jan De Nul Group – Dredging logo

Verken je talent, verleg je grenzen.

Design. Build. Connect. Jan De Nul Group shapes water and land. Worldwide. From complex services for the offshore energy and energy transition sectors, to major dredging and coastal defense projects at the water's edge, and onto challenging civil and environmental works. Well-integrated competencies and investments lead to creative, sustainable, and innovative solutions. In this way, Jan De Nul Group delivers results for satisfied customers. Today, and for the future.

Facts about

  • Aantal werknemers: 6.267

  • Sectoren: Civiel, Dredging, Marine Energie, Offshore, Wind

  • Gewenst werk- en denkniveau: MBO, HBO, WO

  • Gewenste opleidingen: Civiele techniek, Offshore & dredging engineering, Werktuigbouwkunde, Maritieme techniek, Scheepsbouw, Maritiem Officier (Marof)

  • Carrièrefase: Student, Starter & traineeship (0-3 jaar), Young Professional (3-5 jaar), Professional (5-10 jaar), Senior Professional (> 10 jaar)l