Ballast Engineer

Roll Group; Batam; On-site; IDR 300,000,000 - 600,000,000; Full time

Benefits offered by this job

International projects

Collaborative team

Professional development

Job summary

Roll Group is seeking an experienced Ballast Engineer to join our Engineering team and support complex marine operations across offshore, shipyard, port, and major infrastructure projects. You will ensure safe, stable, and technically sound execution of heavy cargo transport and marine load-out activities.

Responsibilities include developing ballast, stability, and marine load-out plans; reviewing hydrostatics, tank plans, deck strength, and load distribution; performing stability calculations;

Qualifications

• Bachelor’s degree or higher in Naval Architecture, Marine Engineering, Offshore Engineering, Mechanical Engineering, Civil/Structural Engineering, or related discipline.
• 5–10 years of relevant experience in marine engineering, naval architecture, offshore installation, barge stability, heavy lift, or engineered transport.
• Proven track record in stability calculations, ballast planning, vessel suitability assessments, and marine operation procedures.

Responsibilities

• Develop and verify ballast, stability, and marine load-out engineering for barges, pontoons, and floating structures.
• Review vessel and cargo data, including hydrostatics, tank plans, deck strength, and load distribution.
• Prepare ballast and de-ballast plans for operations such as load-out/load-in, float-off, skidding, towing, and berth activities.
• Perform stability calculations (displacement, drafts, trim, heel/list, GM, free-surface effect, wind heeling, damaged stability, etc.).
• Coordinate with Naval Architects, Marine Warranty Surveyors, classification societies, and client engineering teams.
• Contribute to risk assessments, method statements, operation procedures, and lessons-learned reviews.

Skills

Ballast planning

Stability calculations

Marine engineering

Vessel data review

Education

Bachelor's degree in Naval Architecture or Marine Engineering

Job description

We are seeking an experienced Ballast Engineer to join our Engineering team and support complex marine operations across offshore, shipyard, port, and major infrastructure projects. This role is critical in ensuring the safe, stable, and technically sound execution of heavy cargo transport and marine load-out activities.

Company

Roll Group offers a total solution for the transportation, lifting and installation of heavy cargo. Our land/sea combination enables us to offer ‘Factory to Foundation’ solutions. With engineering capabilities, a diverse asset base and the ability to adapt, Roll Group takes care of heavy cargo and provides effective, innovative and sustainable services using our unique know-how.

Roll Group owns a versatile heavy-transport seagoing fleet consisting of dock-type vessels, which all have the option of three loading modes – Ro-Ro, Flo-Flo and Lo-Lo – as well as deck carriers. On the land side, Roll Group operates a large number of modern heavy-lift cranes with capacities of up to 4,000 tons, Self-Propelled Modular Trailers (SPMTs) and conventional trailers. The specific characteristics of Roll Group’s asset base ensure the ability to serve a wide range of markets, such as Mining, Oil & Gas and Renewable Energy.

Key Responsibilities

Responsibilities include, but are not limited to:

• Develop and verify ballast, stability, and marine load-out engineering for barges, pontoons, and floating structures.
• Review vessel and cargo data, including hydrostatics, tank plans, deck strength, and load distribution.
• Prepare ballast and de-ballast plans for operations such as load-out/load-in, float-off, skidding, towing, and berth activities.
• Perform stability calculations (displacement, drafts, trim, heel/list, GM, free-surface effect, wind heeling, damaged stability, etc.).
• Evaluate deck loading, longitudinal/transverse strength, and structural capacity.
• Provide field engineering support during mobilization, trials, and critical operations.
• Coordinate with Naval Architects, Marine Warranty Surveyors, classification societies, and client engineering teams.
• Contribute to risk assessments, method statements, operation procedures, and lessons-learned reviews.

Your qualifications

• Bachelor’s degree or higher in Naval Architecture, Marine Engineering, Offshore Engineering, Mechanical Engineering, Civil/Structural Engineering, or related discipline.
• 5–10 years of relevant experience in marine engineering, naval architecture, offshore installation, barge stability, heavy lift, or engineered transport.
• Proven track record in stability calculations, ballast planning, vessel suitability assessments, and marine operation procedures.
• Experience in offshore, shipyard, port, fabrication-yard, energy, petrochemical, renewables, or major infrastructure projects preferred.

What We Offer

• Opportunity to work on high-profile international projects.
• Collaborative environment with industry experts.
• Professional growth through continuous improvement initiatives and technical development.

Our selection process

The recruitment procedure will include two face-to-face interviews, possibly back-to-back. Your terms of employment and benefits package will be discussed at a subsequent meeting. We aim to finalize the entire process within four weeks.

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