Junior Mechanical Engineer – Simulation & Calculation Focus
We are working with a venture-backed defence technology start-up in Germany that is building a highly complex hardware capability from the ground up. The business is transitioning from early-stage engineering into a critical phase of scale – including the development of a new production facility and the expansion of engineering and operational teams. As part of this growth, the company is strengthening its mechanical engineering capabilities, with a specific focus on calculation, simulation, and advanced analysis.
The Role
This position is a Junior Mechanical Engineer role with a clear technical emphasis on:
* Structural calculations
* Finite Element Method (FEM) simulations
* Computational Fluid Dynamics (CFD)
The team already has engineers focused on design, CAD, and technical drawings. This hire is intended to fill a critical gap by providing deeper capability in simulation‑driven engineering.
The role sits within the mechanical engineering team and will focus primarily on analysis and simulation rather than hands‑on hardware build.
Responsibilities
* Perform FEM analyses for mechanical and structural components
* Conduct CFD simulations to support propulsion and fluid‑related systems
* Support engineering decisions through calculation‑driven insight
* Work closely with design engineers to validate and optimise concepts
* Contribute to fast‑iteration development cycles typical of advanced hardware startups
* Operate within a Siemens software environment (or transition into it)
Tooling & Technical Environment
The company’s core toolchain is based on the Siemens ecosystem, including:
* Siemens NX (CAD & simulation)
* Simcenter 3D
* STAR‑CCM+
Experience with these tools is ideal, but not mandatory. Candidates with strong backgrounds using ANSYS or similar high‑end simulation tools are absolutely encouraged to apply – the team is confident in onboarding strong engineers across platforms.
Strong candidates often come from:
* Top technical universities (e.g. Oxford, Cambridge, UCL or similar European institutions)
* Student rocketry teams
* Formula Student / student racing teams
* Formula 1 or elite motorsport environments
* Aerospace, propulsion, or other complex simulation‑heavy industries
Experience in rocket propulsion is a plus but not required. What matters most is depth in simulation, modelling, and analysis of complex mechanical systems.
Eligibility Requirements
Due to the nature of the work and applicable defence regulations, candidates must be eligible to work on defence‑related programmes.
This role is open only to candidates who are nationals of NATO member countries .
Why This Role
Core technical ownership in a growing defence hardware company
Work on complex, real‑world engineering problems with immediate impact
Exposure to high‑performance simulation challenges typically seen in elite aerospace and motorsport environments
Competitive salary, equity participation, and long‑term growth opportunity