CFD & Thermal Simulation Engineer - Design Impact

Sii Poland; Piła; On-site; PLN 120,000 - 190,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Centre of internal trainings

Profit sharing

Medical care

Job summary

Sii Poland in Poland is seeking a CFD/thermal engineer to support the Product Design Studio. You will perform CFD and thermal analyses for mechanical products and systems, build numerical models, and translate simulation results into tangible design improvements.

Collaborating with project teams, you will help optimize performance, validate designs, and prepare technical reports. This role welcomes independent thinkers with a proactive approach and strong English skills to work effectively in an

Qualifications

• Higher technical education in a relevant field (e.g., Mechanical Engineering, Energy, Aviation, Automation).
• At least 3 years of independent CFD and/or thermal analyses for technical products or systems.
• Practical knowledge of STAR-CCM+ or Ansys Fluent.
• Strong grasp of fluid mechanics and heat transfer concepts.
• Ability to build, validate, and verify numerical models; interpret results.
• Good command of English for international collaboration.

Responsibilities

• Conduct CFD analyses and/or thermal analyses for mechanical products and systems.
• Create numerical models and prepare assumptions for simulations.
• Analyze flows, heat transfer, and product behavior under varying conditions.
• Interpret results and recommend design changes.
• Collaborate with project teams, designers, and CAE specialists.
• Contribute to product optimization for performance, reliability and cost.
• Prepare technical documentation and reports from analyses.
• Support validation and development processes across life-cycle stages.

Skills

CFD analyses

Thermal analyses

Numerical modelling

English proficiency

Team collaboration

Education

Higher technical education (Mechanical Engineering, Energy, Aviation, Automation or related fields)

Tools

STAR-CCM+

Ansys Fluent

Job description

Sii Poland in Poland is seeking a CFD/thermal engineer to support the Product Design Studio. You will perform CFD and thermal analyses for mechanical products and systems, build numerical models, and translate simulation results into tangible design improvements.

Collaborating with project teams, you will help optimize performance, validate designs, and prepare technical reports. This role welcomes independent thinkers with a proactive approach and strong English skills to work effectively in an