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Assistant Project Manager

Posted 10 Jun 2025
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Work experience
5 to 10 years
Full-time / part-time
Full-time
Job function
Degree level
Required language
English (Fluent)

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Your role at Allseas

The Assistant Project Manager generally manages one or more work packages in compliance with the applicable management systems and governing rules and regulations in such a way that these are delivered on time and within budget, to the required operational, quality and HSE standards and, most importantly, to the satisfaction of the internal client. In general, the Assistant Project Manager co-ordinates the project preparation and execution effort of (some of) the supporting internal disciplines and manages subcontractors or suppliers that deliver goods or services required for the project.

Current projects for this opportunity include:

  1. Managing work packages and subcontracts for the Solitaire Double Joint Factory upgrade;
  2. Supporting the platform preparation team, which closely collaborates with commercial projects and external clients.

Job specific tasks:

  • Project control: Manage cost, discipline man-hours and vessel day budgets for the assigned work package(s), and adequately forecast until end of project and ensure the forecast remains current;
  • Procurement process: Responsible for subcontracting and procurement process (including Requisitions, Purchase Orders, contracts, etc);
  • Subcontract management: Direct contact with suppliers and subcontractors of equipment, materials and engineering services;
  • Project organisation: Monitor internal disciplines and agile teams and control subcontractors or suppliers so that agreed objectives are met, instil ownership and accountability of internal disciplines and suppliers;
  • Implement optimisations: Identify and implement process, strategy and administrative optimisations to facilitate the work of (Senior) Project Managers;
  • Scope of work: On-board and on-site work preparations such as installation (subcontractor management);
  • Safe performance: Ensure outstanding project safety performance;
  • Acts on behalf of the (Senior) Project Manager when authorised.

What we expect from you

The candidate we are looking for is organised, has a hands-on attitude, is a good communicator and able to develop and maintain constructive relationships both internally and with external parties. You are self-motivated and have experience working in multi-disciplinary teams.

Besides this, you have:

  • BSc or MSc degree in Civil / Mechanical Engineering or equivalent, preferably with additional relevant technical and managerial training;
  • 5 to 10 years' experience preferable in Oil and Gas or Offshore construction;
  • Experience in HSE Management, Project Management, Negotiating and Contract management are preferable;
  • Good command of the English language, both written and spoken;
  • Willingness to travel and be offshore a couple of weeks a year if required.

What we offer

Working at Allseas allows you the chance to work in a dynamic, fast-paced, entrepreneurial environment, with creative thinking, collaboration and down-to-earth culture at its core.

You can expect:

  • competitive industry benchmarked salary and excellent pension;
  • performance based salary raises and bonuses;
  • 30 holidays days per year, flexible working hours;
  • extensive training and development programme, study budgets and coaching;
  • a company-sponsored fitness scheme;
  • internal clubs, committees, parties and (sportive) events.

Allseas has earned the "World-class Workplace" label. This means that as an employer we score above Effectory's global benchmark for being a good employer. The label is based solely on feedback from our employees.

Stories from colleagues

The variety in knowledge, operational expertise, and people is what I love most about working for this company.

Kees Aalbers Structural Engineer

Employees are given the chance to learn, grow, and develop their skills, reflecting the company’s attitude towards hard work and trust.

Justin Sjaak Senior NDT Engineer

What’s kept me interested in working for Allseas all these years is being able to work in different environments, departments, and continents.

Frans den Hartogh Manager Projects

Within Allseas, the expectations are high, but you are given responsibility right from the beginning.

Caspar van Strijp Assistant Project Manager

Being in this team gave me the possibility of interact with clients, see many offshore platforms, widen my knowledge and strengthen my skills.

Marco Chiozzi Assistant Project Manager

Allseas has a brilliant team of diverse cultures and backgrounds, who share the passion and enthusiasm for the work we do.

Helio Bailly Guimaraes Unit Head Naval Architecture

The independence and responsibility asked of me as a student really suited me and I liked the Allseas culture and way of working.

Jessica Vleugel Manager Capital Projects

There is a very open and international vibe in the offshore business and people are always friendly and respectful.

Laura de Jong Coating Engineer and Project Manager River Clean up Project

Allseas thrives in a unique, demanding industry, showcasing its size and spirit. It provides a dynamic workplace with innovative ideas, exciting projects, and rewarding efforts.

Victor Sánchez Senior Electrical Engineer

Allseas is a world-leading contractor in the offshore energy market.
Experts in the design execution of large and complex offshore projects. We are pushing the boundaries of technology. Designed and optimised in-house, our versatile fleet of specialised vessels operate worldwide, equipped with the most advanced equipment and systems.
Allseas specialises in 4 core activities: offshore pipeline installation, heavy lift
deep-ocean polymetallic nodule collection, river waste collection.

Engineering
Delft
Active in 5 countries
1,100 employees
70% men - 30% women
Average age is 42 years