Third Engineer ER

Date: 7 Feb 2026

Location: ZH, NL

Company: Allseas Group

About Allseas

As Allseas employee your work will contribute to our mission: Shifting boundaries of offshore technology. We Pioneer Together to remain a sustained frontrunner through technical ingenuity and entrepreneurial spirit. We live by our core values: Passionate, Innovative and Reliable.

Our employees are skilled and passionate, with an entrepreneurial no-nonsense approach, who are willing to dare the new, innovate through advanced technology, showing integrity and a safe, efficient, and error-free performance resulting in high quality services and products for our clients.

We take great care that we limit impact on the sensitive marine environment and that we operate in socially responsible and sustainable way, preserving our energy resources.

We familiarise ourselves with Allseas Integrated Management System (AIMS), to execute Allseas' activities in a uniform way, ensuring these activities comply with the applicable laws, rules, regulations and certification standards, and are aligned with Allseas mission, vision and values.

Division Description

Working offshore on one of our vessels means that you are at the heart of the action and taking an active part in shaping the future of the offshore industry. Our offshore crew members are dedicated and determined to get the job done efficiently without losing sight of safety.

The marine crew comprises three main teams: nautical, technical and catering. The nautical crew is responsible for sailing the vessel; the technical crew (engineers and mechanics) maintains the installations and equipment on board such as the main engines and electrical plant; the catering crew (cooks and stewards) provides catering and cleaning related services for all crew on board.

Department Description

The Technical Department, under responsibility of the Chief Engineer, is vital to the safe and efficient operation of the vessel. In accordance with International Maritime Organization (IMO) regulations, this department ensures compliance with standards for machinery maintenance, energy efficiency, and environmental protection. Its primary role is to maintain and operate all mechanical, electrical, and auxiliary systems on board, guaranteeing reliability and safety at sea.

Job Description

As Third Engineer ER, you are essential to the safe and efficient operation of our vessels’ engine room and machinery. You’ll work on offshore projects worldwide, reporting to the Second and First Engineer ER, and collaborating with a skilled technical team.

Your responsibilities include:

  • Maintaining a safe engine room watch in line with STCW A-VIII/2, and promptly reporting any changes in equipment operation.
  • Acting as deputy for the Second Engineer ER when required by the Chief Engineer.
  • Carrying out tasks efficiently and in accordance with Allseas Integrated Management System (AIMS) standards.
  • Completing timely administration, including planned maintenance and statutory logbooks.
  • Assisting the Second Engineer ER in operating and maintaining the Power Generation and Propulsion plants, ensuring reliability, environmental responsibility, and cost-effectiveness.
  • Using and updating safety procedures and documentation under supervision.
  • Performing independent watchkeeping, maintenance, and repairs, diagnosing faults, and documenting corrective actions.
  • Remaining in the engine or control room during DP operations or as instructed, and fulfilling duties on the station bill, including ship security.
  • Conducting accurate duty rounds and equipment inspections, and actively participating in handovers.
  • On construction vessels, maintaining operability of heavy lift systems and cranes, monitoring deck technical equipment, assisting the construction department, and supporting the ROV department when needed.

You will also have the authority to stop the job if safety or compliance is at risk, in line with the Allseas Integrated Management System. 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.

Qualifications & Experience

To succeed as Third Engineer ER at Allseas, you should have:

  • Maritime engineering education and compliance with all STCW requirements.
  • Minimum 3 years’ general engine room experience (preferably 1 year with diesel electric propulsion).
  • At least a first experience on Offshore Construction or Dredging vessels
  • CoC with competency level III/1 “Officer in charge of an Engineering Watch” or higher, with no limitations.
  • A2 level English proficiency (spoken and written).
  • Knowledge of dynamic positioning operations, equipment redundancy, maintenance requirements, and MS Office applications.
  • Strong communication, teamwork, and results orientation.

Certifications

  • Medical certificate (or equivalent)
  • Offshore survival
  • Certificate of Competence (or equivalent)

Additional Information

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. It means contributing to pioneering projects, like performing record breaking heavy lifts working with top notch technologies.

 

Apart from that, you can count on the following:

 

  • Competitive salary based on your offshore industry skills and expertise.
  • 5x5 rotation schedule for work-life balance.
  • Career advancement opportunities in a dynamic organization.
  • Global workplace with professionals from 40+ nationalities.
  • Robust safety programs and continuous training.
  • Varied fleet experience for skill diversification and career enrichment.

 

Ready to pioneer with us?


If you’re passionate about offshore technology and want to make a difference, we look forward to receiving your CV and motivational letter. Please apply via the Apply button. An online personality questionnaire may be part of the selection procedure.