Mechanical Engineering System

Key Responsibilities
Design for Manufacture & Production Readiness

Embed design-for-manufacture (DFM) and design-for-assembly (DFA) thinking throughout the design process, proactively considering machinability, inspection accessibility, assembly sequence, and tolerance stack-up from the earliest stages

Engage proactively and often with the production engineering team to sense-check designs against manufacturing capability, raising and resolving producibility concerns before formal drawing release

Prepare complete and formally controlled design packages for job order handover, including fully detailed drawings with appropriate GD&T, complete BOMs with material specifications and bought-in part references, and any necessary manufacturing notes or special process requirements

Generation of production and assembly procedures and related documentation necessary to raise job orders for production

Lead or support production readiness reviews (PRRs), presenting design intent, critical features, and known risks to the production team in a structured and accessible way

Own drawing and model revisions arising from production queries, non-conformances, or concession requests, turning them around promptly to minimise disruption to the production schedule

Mechanical Design & Analysis

Develop detailed 3D CAD models and 2D engineering drawings of hybrid rocket motor components including combustion chambers, fuel grain housings, oxidiser injectors, nozzle assemblies and structural interfaces

Define appropriate materials, surface treatments, and joining methods for components operating in the demanding thermal, chemical, and mechanical environment of a hybrid rocket motor

Support the creation and maintenance of design requirement documents, interface control documents (ICDs), and design justification reports as required

Cross-Functional Collaboration

Work as an active member of the propulsion team alongside propulsion engineers, systems engineers, and test engineers, ensuring quality mechanical design

Liaise with external suppliers and subcontractors on manufactured and bought-in components, providing clear technical briefs and reviewing supplier drawings and quality documentation

Coordinate with the procurement team on lead times, material availability, and alternative sourcing options for critical components

Basic Qualification

Degree in Mechanical Engineering or Aerospace Engineering (BEng minimum; MEng or MSc preferred)

Proven experience (typically 2-6 years) in detailed mechanical design and drawing release within an engineering environment, ideally aerospace, defence, or high-performance mechanical systems

Practical familiarity with metallic and composite manufacturing processes — including CNC milling and turning, filament winding, and hand lamination — with an understanding of how each process constrains and informs design decisions around geometry, tolerancing, fibre orientation, and surface finish

High proficiency in 3D parametric CAD (e.g. CATIA, Siemens NX, SolidWorks, or Creo) and production of fully detailed manufacturing drawings to recognised standards

Strong command of geometric dimensioning and tolerancing (GD&T / BS 8888 or ASME Y14.5) and tolerance analysis methods

Experience preparing complete design packages for handover to a manufacturing or production team, and an understanding of what constitutes a truly production-ready drawing release

Familiarity with engineering change management processes and working within a controlled PDM or PLM environment

Desired Experience

Direct experience designing components for rocket motors, jet engines, gas turbines, or other high-temperature, high-pressure propulsion systems

Knowledge of hybrid or solid propellant systems, oxidiser feed system design, nozzle aerothermodynamics, or combustion chamber structural design

Familiarity with pressure vessel design codes (e.g. PD 5500, ASME BPVC) or structural analysis in accordance with ECSS or MIL standards

Hands‑on experience with machined metallic components, knowing how design choices translate into real machining operations, tooling constraints, and inspection challenges

Exposure to composite structure design or non‑metallic materials in propulsion or structural applications

Benefits

An exciting work environment encompassing the development, construction, and operation of hybrid rockets

Flexible working time (flextime), 30 days of holiday

Hybrid working / Homeoffice / mobile working

Christmas bonus

VISA credit card with €50 credit per month which can be used for retail purchases

Bike-Leasing

Performance incentives possible

Professional skills development through further training opportunities

A diverse and inspiring work environment where talented individuals from over 16 nations come together to achieve greatness

Direct contribution and participation in the end‑to‑end development processes of a growing New Space start-up

Location
Our location in Neuenstadt in the region of Heilbronn offers an ideal combination of rural charm and urban quality of life. Located in the heart of Baden-Württemberg, the region is characterized by its excellent traffic connections and diverse opportunities for leisure activities. Discover the advantages of this dynamic and liveable environment and benefit from a good work‑life balance.

2023, Baden-Württemberg registered by far the most patents in Germany. A total of 16,000 people work in LR BW member companies and generate an annual turnover of around 5 billion euros - and the trend is rising. The strength of Baden-Württemberg's aerospace industry lies in the integrated value chain from the screw to the research satellite.

Equal Employment Opportunity
HyImpulse is committed to building a diverse and inclusive environment. As an equal opportunity employer, all qualified applicants will be considered without regard to race, color, religion, sex, gender identity, genetic information, national origin, age or disability.

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