Simulation Engineer - CFD/Thermal

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

Join the Product Design Studio at Sii and support the implementation of engineering projects for clients from various sectors such as automotive, industrial, energy, aerospace, and hi-tech. We are looking for someone who specializes in CFD simulations or thermal analyses and wants to develop their skills in diverse projects related to design, optimization, and validation of products.

Depending on experience and availability, we offer the possibility of cooperation both in full-time and part-time capacities. We are looking for a versatile person who thrives in complex engineering issues and can translate simulation results into real improvements in designed solutions.

Your tasks

• Conducting CFD analyses and/or thermal analyses for mechanical products and systems


• Creating numerical models and preparing assumptions for simulations


• Analyzing flows, heat exchange, and product behavior under various operating conditions


• Interpreting simulation results and recommending design changes


• Collaborating with project teams, designers, and other CAE specialists


• Participating in product optimization for performance, reliability, and cost


• Preparing technical documentation and reports from conducted analyses


• Supporting validation and product development processes at various stages of the life cycle

Requirements

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


• At least 3 years of experience in independently conducting CFD analyses and/or thermal analyses for technical products or systems


• Practical knowledge of STAR-CCM+ or Ansys Fluent


• Knowledge of fluid mechanics and heat transfer issues


• Ability to build, validate, and verify numerical models


• Experience in analyzing and interpreting simulation results


• Ability to prepare technical documentation and reports


• Good command of English allowing for work in an international environment

Job no. JOB-DPEPY

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work


• Solid financial situation


• Contracts with the biggest brands


• Centre of internal trainings


• Many experts you can learn from


• Open and accessible management team


• Profit sharing


• Passion Sponsorship program


• Regular integration events and trips


• Comfortable and well-equipped offices


• MySii app


• Medical care