Mechanical Design Engineer (m/w/d)

Mechanical Design Engineer (m/w/d) – Fluid Dynamics / CFD Software / C# / Python / German

Project:
For our client Roche Diagnostics International AG based in Rotkreuz, we are looking for a Mechanical Design Engineer (m/w/d)

Background:
The Liquid Handling team in Rotkreuz is the expert team for liquid handling solutions for our diagnostic instruments. In cooperation with the various project and product teams, we develop, maintain, and test the fluid systems, pipetting, and dosing solutions for our diagnostic instruments, including mechanics, electronics, real-time software, and monitoring algorithms.
As a Mechanical Design Engineer - Expert in Fluid Dynamics, you will help assess and develop new technologies in the field of liquid handling for our IVD product development. You will support the development of cost-efficient and reliable fluidic concepts that meet the system requirements.
With your expertise in fluid dynamics, including experimental fluid dynamics, and your ability to grasp the overall system context, you will contribute significantly to the success of our future diagnostics portfolio.

The perfect candidate is a qualified person with a background in mechanical engineering and a specialization in fluid dynamics. The ideal candidate brings 1 to 3 years of experience with CFD software and simulation techniques (including grid generation, simulation, and post-processing). Additionally, strong analytical skills, a structured way of working to solve complex problems, and enthusiasm for experimental fluid dynamics are required. Practical knowledge in the development of test setups as well as programming skills in Python and C# round off the profile.

Main tasks and areas of responsibility:
Concept Assessment and Parameter Determination:
You analyze and assess new technologies and test them. Using your fluidic and physical expertise, you define various parameter settings and verify them so that the pipetting performance of the specific application can be achieved.

Liquid Handling Solution Development:
You support the technical implementation of liquid handling solutions in the context of IVD product developments. Using your fluidic and physical expertise and Computational Fluid Dynamics, you support the design engineers in the development of components so that the design is optimized from a fluid technical perspective. You verify your simulations through experiments.

Feasibility Studies:
You initiate, lead, and conduct feasibility studies in the field of liquid handling to meet technical requirements and minimize risks.

Test Stand Development:
You define the required test stands needed for the feasibility studies and parameter determinations. In cooperation with the mechanics and electronics design engineers and the software engineers, you commission the test stands and program the required software processes.

Must Haves:

• Completed studies, Bachelor or Master of Science in Mechanical Engineering in the field of Fluid Dynamics
• 1-3 years of experience with CFD software and techniques to simulate complex fluidic flows, including grid generation, simulation, and post-processing
• Great analytical skills and an independent and structured approach to analyze and solve complex problems
• Enjoyment of experimental fluid dynamics and a desire to work hands-on with test setups to confirm theories and verify the performance of the setups
• Ability to program complex test sequences in Python and C#, and use modern AI tools such as Gemini or Claude Code to develop efficient solutions
• You want to work in international, cross-functional teams and exchange ideas with other experts
• Very good written and oral communication in German and English.

Reference No.: 925299TP
Role: Mechanical Design Engineer (m/w/d)
Industry: Pharma
Work location: Rotkreuz
Percentage: 80-100%
Start: 01.01.2027
Duration: 12++
Application deadline: 12.10.2026

Should this position have piqued your interest, please send us your complete [application]. If this position does not fit your profile so well and you wish to receive other positions directly, you can also send us your dossier via this advertisement or to jobs[at]itcag[dot]com.
Contact us for further information about our company, our positions, or our attractive payroll-only program: +41 41 760 77 01.

About us:
ITech Consult is a Swiss company certified according to ISO 9001:2015 with branches in Germany and Ireland. ITech Consult specializes in the placement of highly qualified candidates for personnel leasing in the fields of IT, Life Science & Engineering.
We offer personnel leasing & payroll services. For our candidates, this is free of charge; even for payroll, we do not charge you any additional fees.