Rotor Sail Performance Engineer

Anemoi Marine; City Of London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Anemoi Marine Technologies is seeking a Performance Engineer to shape wind-powered propulsion strategies. You will apply CFD and data analytics to assess rotor sail performance, predict fuel savings, and investigate design improvements.

The role combines CFD, Python workflows and rigorous data interpretation to support engineering decisions and customer outcomes. Based in the UK, you will collaborate with multidisciplinary teams across development, testing and field validation, contributing to

Qualifications

• At least two years of relevant professional experience in an engineering, analytical or numerical simulation role.
• A degree in engineering, mathematics, physics or a related discipline.
• A sound understanding of engineering principles and fluid mechanics, with the ability to apply these to vessel performance and propulsion.
• Strong numerical and analytical skills, including practical statistics, interpreting real‑world data, accounting for uncertainty and judging whether results are physically reasonable.
• Practical experience setting up, running and interpreting CFD simulations, including mesh generation, model selection and boundary conditions, and checking results through convergence and sensitivity studies or comparison with physical evidence.
• Strong Python programming skills for engineering analysis, data processing and simulation workflows.
• Clear written and verbal communication, including the ability to explain technical findings and prepare well‑structured reports.

Responsibilities

• Deliver rotor sail performance assessments and fuel savings predictions using operational data and analytical tools.
• Develop performance assessment plans and methodologies, defining how performance will be measured, simulated, analysed and evaluated.
• Investigate performance issues and technical questions through data analysis, supported by numerical simulation where it adds value.
• Support performance verification by preparing analysis and technical evidence for review with customers and independent third parties.
• Check the quality of data and results, ensuring analyses are reproducible and their assumptions and limitations are understood.
• Plan, set up and run CFD studies to investigate rotor sail aerodynamics, interactions with the vessel and opportunities to improve performance.
• Select suitable geometry, meshes, physical models, boundary conditions and solver settings; assess convergence, mesh sensitivity and other sources of numerical uncertainty.
• Compare simulation results with measurements, experiments and analytical estimates, explaining discrepancies and refining models where appropriate.
• Use Python to process data, prepare simulation inputs, analyse results and automate repeatable parts of the workflow.
• Interpret and communicate technical findings clearly to customers and colleagues.

Skills

CFD simulations

Python

Data analysis

Fluid mechanics

Technical communication

Convergence studies

Education

Engineering degree

Mathematics degree

Physics degree

Tools

STAR-CCM+

ANSYS Fluent

OpenFOAM

Job description

Anemoi Marine Technologies is seeking a Performance Engineer to shape wind-powered propulsion strategies. You will apply CFD and data analytics to assess rotor sail performance, predict fuel savings, and investigate design improvements.

The role combines CFD, Python workflows and rigorous data interpretation to support engineering decisions and customer outcomes. Based in the UK, you will collaborate with multidisciplinary teams across development, testing and field validation, contributing to