Fluids Engineer (m/f/d)

Isar Aerospace

Mission Brief  As a (Senior) Design Engineer within the system integration team, you will find yourself at the heart of product development related efforts across Isar Aerospace. You will be responsible for fluids related hardware design and development, from its early conception, to its qualification and integration into the final product. Additionally, you will oversee integration of various systems and components into the global launch vehicle, while ensuring their functionality. Furthermore, you will work closely with a passionate team, as well as the rest of highly motivated colleagues across other teams/departments. You will play a crucial role in getting our orbital launch vehicle designed and built.    Your Role in Our Space Mission:  * Fluid hardware focused design and development: High pressure & cryogenic pipes, manifolds, fluid fittings, fluid storages, and their support structures  * Fluid hardware qualification: Test plan definition and documentation / test execution oversight  * Implementation and maintenance of engineering change requests.   * Integration of designs into global assemblies   * Product requirement & verification definition efforts   * Preparation of detailed product development road maps and maintenance of their timelines   * Preparation of design reviews, risk assessments, trade-off studies, etc.   * Communication with the affected stakeholders (e.g. production, assembly, other engineering departments) to ensure efficient development of products   * Interface management   Qualification Checklist  * Min. bachelor’s degree in aerospace engineering or similar  * 2+ years of experience in hardware design and development   * Proficiency with design engineering tools such as NX, TeamCenter, Solidworks or similar   * Experience with product lifecycle management (PLM) and product data management (PDM)  * Strong knowledge in various manufacturing methods (e.g. milling, turning, metal sheet, composite or additive manufacturing)  * Experience with standards (e.g. DIN, EN, ISO, AN/AS, LN)  * Strong understanding of geometric dimensioning and tolerancing (GD&T)  * Results orientated with ability to plan and deliver against project deadlines   * Resilient, self-motivated and able to work well under pressure   * Highly organized and proactive with high attention to detail  * Fluent English language skills  Bonus Skills * Experience in launch vehicle design, manufacturing, or assembly techniques for structure and fluid systems   * Experience in aerospace hydraulic system component design   * General knowledge of aerospace/aviation hardware design  * Knowledge of fabrication, integration processes, and quality control relative to tubes/piping and machined components   * Hands-on hardware production or assembly experience     * Proficient German  * Lean production knowledge   Benefits  * Employee Participation Program: Share in our success through our virtual company share program * 30 days of vacation: Enjoy the days off to relax and recharge * Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period * Subsidised lunch: Stay energised with delicious, subsidised lunches every day * Public transport ticket: Commute with ease using a fully financed Deutschlandticket * Rental clothing with laundry service: Enjoy hassle-free workwear with our convenient rental clothing and laundry service   * Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) * Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period * Childcare allowance: Receive a childcare allowance for your non-school-age children * And Much More! Discover additional perks and benefits when you join our team.          Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com Data Protection We process your personal data for the purpose of managing the recruitment process and assessing your application. For detailed information on how your data is processed, including your rights, please refer to our Privacy Policy. Disclaimer Isar Aerospace SE is an equal-opportunity employer committed to fairness and inclusivity. We do not prioritize any specific religion, gender, nationality, or background. Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process. All qualified applicants are encouraged to apply. We use Metaview to record interview audio so our team can review it later and stay focused during the conversation. We will record interviews only if you opt in. Please note that we will request your consent separately during the interview process. Participation is completely voluntary and will not affect your application in any way. For more information on how we process your personal data, please see our Privacy Policy

Isar Aerospace

Mission Brief  As a Mission Analysis Engineer, you will be responsible for mission‑specific trajectory and mission analysis activities supporting active and planned launch missions. You will design and optimise mission trajectories and contribute to flight preparation using high‑fidelity simulation tools.  Embedded within the Mission Engineering team, this role operates at the interface between mission and launch operations and the GNC team. You will work closely with GNC by using GNC tools and models, performing 6‑DoF analyses to support mission design and analysis, and ensuring that mission engineering needs and operational considerations are properly exercised and covered in simulation.  In addition to supporting active missions, you will contribute to mission design trade‑offs and future mission planning through 3‑DoF trajectory studies and preliminary 6‑DoF analyses. The role offers hands‑on involvement across the mission analysis lifecycle, with a strong emphasis on analytical rigour, traceability, and robust engineering workflows.  Your Role in Our Space Mission  In this role, you will:  * Develop customer‑facing technical proposal content, including mission concepts, system descriptions, trade‑offs, and compliance matrices.   * Analyse customer, institutional, and program‑level requirements and translate them into clear, concise, and traceable technical responses, including documented assumptions, constraints, and exclusions.   * Coordinate with Mission Engineering and relevant subject‑matter experts to generate technically credible and internally aligned proposal inputs.   * Translate complex technical concepts into clear, structured proposal material suitable for both customers and non‑technical stakeholders.   * Contribute to bid / no‑bid decisions by assessing technical feasibility, compliance status, schedule drivers, and key technical risks.   * Act as a technical point of contact for customer technical exchanges, clarification calls, and written Q&A activities throughout the bid phase.   * Define and refine technical Statements of Work (SoWs) and associated deliverables, and support technical clarification activities during early contract development.   * Translate customer and contractual requirements into well‑defined inputs for internal development and engineering teams during proposal and contract handover phases.   * Contribute, where appropriate, to mission engineering analysis or development activities that strengthen proposal assumptions, reference missions, and overall technical credibility.   * Consolidate customer feedback and market inputs to support the evolution of future launch service offerings.   * Participate in customer meetings alongside commercial leads, building confidence through technically sound contributions and consistent technical messaging.  Qualification Checklist  * Perform mission‑specific 3‑DoF trajectory design, optimisation, targeting, and trade‑off studies for active and future launch missions.  * Execute and interpret high‑fidelity 6‑DoF simulations to validate mission designs, targeting strategies, and operational margins, in close coordination with the GNC team.  * Support preliminary 6‑DoF analyses for future mission concepts and mission planning activities.  * Work closely with the GNC team as a technical mission analysis interface, using GNC tools and models to support the implementation and validation of mission designs.  * Define and manage Mission Engineering inputs and requirements towards internal simulation and 6‑DoF model development. * Coordinate mission‑related inputs with specialists in GNC, propulsion, structures, fluids, and systems engineering, ensuring technical consistency across mission assumptions and interfaces.  * Coordinate with Mission Management to support timely execution of mission planning and launch preparation milestones.  * Support flight preparation and mission readiness activities, including trajectory validation, performance assessments, and margin analysis.  * Maintain and evolve mission analysis models, tools, and workflows, ensuring results are reproducible, traceable, and scalable across missions.  * Produce clean, well‑documented analysis outputs and datasets, and contribute to the investigation of mission sensitivities, dispersions, and performance drivers. Bonus Skills * Experience with Gitlab CI/CD pipelines.   * Experience supporting launch campaigns, flight readiness reviews, or mission operations.   * Additional languages are a plus.  Benefits  * Employee Participation Program: Share in our success through our virtual company share program * 30 days of vacation: Enjoy the days off to relax and recharge * Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period * Subsidised lunch: Stay energised with delicious, subsidised lunches every day * Public transport ticket: Commute with ease using a fully financed Deutschlandticket * Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) * Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period * Childcare allowance: Receive a childcare allowance for your non-school-age children * And Much More! Discover additional perks and benefits when you join our team         Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com   Data Protection We process your personal data for the purpose of managing the recruitment process and assessing your application. For detailed information on how your data is processed, including your rights, please refer to our Privacy Policy. Disclaimer Isar Aerospace SE is an equal-opportunity employer committed to fairness and inclusivity. We do not prioritize any specific religion, gender, nationality, or background. Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process. All qualified applicants are encouraged to apply. We use Metaview to record interview audio so our team can review it later and stay focused during the conversation. We will record interviews only if you opt in. Please note that we will request your consent separately during the interview process. Participation is completely voluntary and will not affect your application in any way. For more information on how we process your personal data, please see our Privacy Policy

Isar Aerospace

Mission Brief  As a Mission Analyst in the Reusability Program, you model and optimize ascent, reentry, and recovery concepts for our next‑generation launcher. Initially supporting ESA reusability studies, you translate Spectrum test insights into mission‑level performance assessments and constraints. You run trajectory optimization and Monte Carlo analyses to de‑risk key design choices. Your results directly inform vehicle architecture, flight‑dynamics decisions, and broader program planning.  Your Role in Our Space Mission  * Run end‑to‑end mission and trajectory optimization for ascent, reentry, and recovery scenarios, structuring problems for coupled multidisciplinary analysis and delivering actionable performance insights to inform system‑level decisions. * Perform trajectory analyses and MonteCarlo simulations to assess sensitivity to dispersions, environmental variations, and vehicle uncertainties.  * Conduct mission planning and performance assessments for nearterm demonstrators and future HLV configurations.  * Develop and execute multidisciplinary design optimization (MDO) studies and design‑space exploration to integrate propulsion, aerodynamics, structures, mass properties, thermal constraints, GNC effects, and operational assumptions, comparing mission‑level outcomes across vehicle configurations, recovery concepts, and constraint sets to inform architectural trade‑offs. * Maintain and evolve missionanalysis models and workflows, ensuring consistent, traceable, reproducible, and scalable setups and clean analysis outputs.  * Produce clear, highquality missionanalysis documentation for internal reviews and ESA deliverables.  * Coordinate missionrelated inputs with specialists in propulsion, structures, fluids, GNC, and systems, ensuring mission assumptions remain coherent and technically consistent. * Support programlevel decisions by delivering structured results, scenario comparisons, and datadriven recommendations.  Qualification Checklist  Education & Technical Background  * Master’s degree in aerospace, mechanical engineering, or an equivalent technical field.  * Solid theoretical foundation in flight mechanics, trajectory dynamics, orbital mechanics, and atmospheric flight.  * Understanding of reusability concepts for launch vehicles, including ascent–entry coupling and performance constraints, and their implications on multidisciplinary mission‑level trade‑offs.  Experience  * Experience in mission analysis, trajectory simulation, or related GNC/flightdynamics work. * Practical experience with trajectory optimization frameworks, numerical solvers, and simulation environments, including problem formulations that enable coupled, multidisciplinary analysis. * Familiarity with MonteCarlo methods, sensitivity studies, and statistical evaluation of mission outcomes.  * Background working with crossdisciplinary datasets (aero, propulsion, structural, environmental), integrating them within mission‑level or MDO‑style analysis workflows. * Proficient with Python (MATLAB or other languages commonly used for data analysis are a plus)  Skills & Competencies  * Strong analytical and mathematical modelling skills; able to develop and maintain reusable simulation workflows, including coupled, multidisciplinary problem formulations. * Ability to work with MBSE‑aligned environments and multidisciplinary design optimization (MDO) toolchains (e.g., SysML, Valispace, ModelCenter, Ansys SAM, Flow, OpenMDAO, Isight or similar) to connect mission analysis with systemlevel architecture.  * Able to synthesize complex results into concise, decisionoriented documentation and presentations.  * Clear communication skills and the ability to coordinate independently and effectively with domain experts in propulsion, GNC, structures, fluids, and systems. * Strong ownership mindset and commitment to delivering highquality results reliably and on time. * Fluent in English (German is a plus)  Benefits  * Employee Participation Program: Share in our success through our virtual company share program * 30 days of vacation: Enjoy the days off to relax and recharge * Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period * Subsidised lunch: Stay energised with delicious, subsidised lunches every day * Public transport ticket: Commute with ease using a fully financed Deutschlandticket * Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) * Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period * Childcare allowance: Receive a childcare allowance for your non-school-age children * And Much More! Discover additional perks and benefits when you join our team         Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com   Data Protection We process your personal data for the purpose of managing the recruitment process and assessing your application. For detailed information on how your data is processed, including your rights, please refer to our Privacy Policy. Disclaimer Isar Aerospace SE is an equal-opportunity employer committed to fairness and inclusivity. We do not prioritize any specific religion, gender, nationality, or background. Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process. All qualified applicants are encouraged to apply. We use Metaview to record interview audio so our team can review it later and stay focused during the conversation. We will record interviews only if you opt in. Please note that we will request your consent separately during the interview process. Participation is completely voluntary and will not affect your application in any way. For more information on how we process your personal data, please see our Privacy Policy.