Full-Time

Fluid Systems / Process Design Engineer

Updated on 9/3/2026

Isar Aerospace

Isar Aerospace

201-500 employees

Privately funded small-satellite launch services

No salary listed

Munich, Germany

In Person

On-site in Ottobrunn, Bavaria; occasional international travel.

Bachelor's, Master's

Category
Mechanical Engineering (1)
Required Skills
Data Analysis

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Requirements
  • B.Sc. or M.Sc. degree in aerospace, mechanical, process/energy/chemical engineering or an equivalent qualification
  • 0 to 5 years of relevant professional experience
  • Fluent in English
  • In-depth knowledge of fluid mechanics and thermodynamics and their application to real hardware like valves, regulators, etc.
  • Strong analytical skills and able to apply theoretical knowledge to find practical solutions to complex fluid mechanic and/or thermodynamic engineering problems
  • Basic knowledge in the design and/or operation of high-pressure gas and cryogenic liquid systems for rocket testing and launching facilities
  • Adjusting self-sufficiently to a changing work environment
  • Highly organized, effective team player with high attention to detail
  • Proactive, open, effective, and constructive communication
  • Can-do attitude and desire to go out of your way to help others
  • Available for occasional international travel to our test and launch sites
Responsibilities
  • Design fluid systems for test and launch facilities, including rocket engine test-rigs, structure pressurization test-rigs, integrated stage testing rigs, launch pads, etc.
  • Perform sizing calculations and/or numerical simulations for fluid systems, including cryogenic propellants storage, conditioning, and distribution systems, high-pressure gas distribution and pressurization systems, etc.
  • Select and procure suitable fluid hardware, including tanks, pumps, heat-exchangers, valves, pressure regulators, safety-valves, instrumentation, etc.
  • Prepare technical documentation, such as PFDs and P&IDs, hardware lists, datasheets, technical notes etc. that serve as a basis for manufacturing planning and execution
  • Lead and contribute to system design reviews and risk assessments
  • Depending on interest and experience: lead or support factory and site acceptance tests for fluid systems
  • lead or participate in commissioning planning and hands-on site operations
  • support test and launch campaigns on-site or remotely with operations or data analyses
Desired Qualifications
  • Modeling and simulation of fluid systems by means of software such as EcosimPro, Python/Matlab scripts, and Excel sheets
  • Hands-on experience with fluid systems, e.g., assembly of piping systems, participating in commissioning or testing operations, etc.

What Isar Aerospace does: It provides launch services for small- and medium-sized satellites in Europe using its two-stage Spectrum rocket. How the product works: Spectrum is a high-performance two-stage vehicle with configurable launch options, including solo launches or rideshares to a chosen orbit, and Isar handles the full service from booking to launch, supported by in-house manufacturing and a data-driven approach to design and operations. How it differs from competitors: It is privately funded (not reliant on government funding), emphasizes in-house production and a data-driven process, and focuses on flexible launch configurations and environmental sustainability to reduce risk and cost. What the company aims to achieve: To become a reliable private provider of space access for the small/medium satellite market, growing with a global customer base, and advancing toward its first test flight and commercial operations with a scalable, low-risk launch system.

Company Size

201-500

Company Stage

Grant

Total Funding

$1.2B

Headquarters

Ottobrunn, Germany

Founded

2018

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Simplify Jobs

Simplify's Take

What believers are saying

  • On August 27, 2026, ESA committed about €200 million under the Launcher Challenge.
  • Planet Labs Germany signed July 2, 2026, for a late-2026 Spectrum launch.
  • The July 2026 Nova Scotia agreement targets 2028 launches and 40 annual flights by 2029.

What critics are saying

  • Spectrum failed its March 2025 orbital attempt and aborted again in March 2026.
  • The Nova Scotia contract is conditional through December 31, 2027, delaying revenue.
  • If late-2026 launches slip again, ESA and Planet lose confidence before 2028 scaling.

What makes Isar Aerospace unique

  • Isar’s Spectrum is Europe’s privately funded orbital launcher, unlike government-backed Ariane programs.
  • The company vertically integrates design, manufacturing, testing, and launches from Munich and Andøya.
  • Its Canada and Norway sites target sovereign access for Europe’s civil and defense customers.

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Benefits

Employee Stock Purchase Plan

Paid Vacation

401(k) Company Match

Professional Development Budget

Childcare Support

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

-2%

2 year growth

-2%
Bloomberg
Sep 5th, 2026
Isar Aerospace rocket launches from Norway in first commercial European space mission

A rocket developed by German startup Isar Aerospace has launched from Norway, marking an attempt to achieve the first commercial orbital space mission from continental Europe. The launch took place from a Norwegian launchpad as part of the company's mission to demonstrate its orbital capabilities. This represents a significant milestone for the European commercial space industry as Isar Aerospace aims to establish itself as a key player in the launch services market.

Global Banking & Finance Review
Aug 27th, 2026
Isar Aerospace secures $226M from ESA to boost European launch independence

German rocket startup Isar Aerospace has secured €200 million from the European Space Agency under the European Launcher Challenge programme, the company announced on Thursday. The funding will support development of future launch vehicles, expansion of testing and launch infrastructure, and upcoming missions. The contract is the largest of three awards announced so far under the programme, which is backed by more than €900 million from ESA member states. European governments are seeking to increase launch capacity to reduce dependence on SpaceX and secure independent access to space for civil, commercial, and defence missions. Isar Aerospace said it has already met initial programme milestones. The company's launch manifest extends through 2028, including missions for ESA and other customers.

WQXC
Aug 27th, 2026
Isar Aerospace secures 200 million euros from European Space Agency.

Isar Aerospace secures 200 million euros from European Space Agency. By Thomson Reuters Aug 27, 2026 | 7:17 AM By Maria Rugamer Aug 27 (Reuters) - German rocket startup Isar Aerospace has secured about 200 million euros ($233 million) from the European Space Agency (ESA) under a programme aimed at boosting Europe's launch industry, the company said on Thursday. The funding comes as European governments seek to increase launch capacity to reduce dependence on SpaceX, which dominates the global market, and to secure independent access to space for civil, commercial and defence missions. The contract, signed under ESA's European Launcher Challenge, will fund development of future launch vehicles, expansion of testing and launch infrastructure and future missions. It is the largest of three awards announced so far under the programme, which is backed by more than 900 million euros from member states. Andreas Schwarz, a member of the SPD party and Germany's parliamentary budget committee, said the contract highlighted the strategic importance of launch capacity as Berlin plans major spending on satellite programmes. "Launch capacity is an elementary interest of a state," Schwarz told Reuters, arguing governments should consider instruments ranging from long-term launch commitments to state shareholdings in launch providers like Isar to ensure satellites can be placed into orbit when needed. Isar said it had already met initial programme milestones and that its launch manifest extended through 2028, including missions for ESA and other customers. ($1 = 0.8587 euros) (Reporting by Maria Rugamer)

Brown Brothers Media
Jul 11th, 2026
In July 2026, German rocket startup Isar Aerospace signed a Nova Scotia launch-site agreement whose disclosed quarterly fee schedule totals US$112.5 million before per-launch charges, with plans fo...

In July 2026, German rocket startup Isar Aerospace signed a Nova Scotia launch-site agreement whose disclosed quarterly fee schedule totals US$112.5 million before per-launch charges, with plans for up to 40 flights a year from a Spectrum rocket that has never reached orbit. In July 2026, Isar Aerospace signed an agreement for a launch complex in Nova Scotia whose disclosed fixed-payment schedule totals US$112.5 million over 10 years before separate launch fees - even though its Spectrum rocket has spent only about 30 seconds in flight and has never reached orbit. Published July 11, 2026 In July 2026, Isar Aerospace signed an agreement for a launch complex in Nova Scotia whose disclosed fixed-payment schedule totals US$112.5 million over 10 years before separate launch fees - even though its Spectrum rocket has spent only about 30 seconds in flight and has never reached orbit. The number comes from the companies' own contract announcement. Maritime Launch Services is due US$3.75 million each quarter, except during a 30-month fee-free period beginning after the first year. Across a full 10-year term, that leaves 30 paid quarters: US$112.5 million. The agreement also carries cost-plus charges for individual launches. Isar says operations could begin in 2028 and rise to as many as 40 launches a year by 2029, a cadence that would put the unproven German vehicle among the busiest orbital rockets in the world. For now, the contrast is stark. A launch site is planned for dozens of annual flights by a rocket whose only attempt ended in the sea. The agreement is large, conditional and more complicated than a lease. The companies describe the deal as a 10-year facilities usage agreement, not simply a lease. It gives Isar a dedicated complex at Spaceport Nova Scotia near Canso, with access to a pad, assembly and testing facilities, a launch operations centre and payload-integration infrastructure. Isar can seek two further five-year terms. The separate per-launch charges mean the final value could exceed the US$112.5 million fixed schedule, but the published terms do not support describing the initial agreement itself as a flat US$150 million commitment. The contract is also not unconditional. According to the Maritime Launch Services disclosure, the parties still have to agree on a statement of work and milestones, hand over the designated pad and complete additional infrastructure by the end of 2027. That timing explains the payment holiday. The 30-month waiver covers much of the period in which the site is meant to move from construction into launch operations, before the regular quarterly fees begin. The 40-flight figure is a statement of potential capacity, not a booked manifest. It depends on the spaceport being finished, Spectrum becoming operational, production expanding and enough customers appearing to fill the schedule. Spectrum's first flight lasted about 30 seconds. Spectrum lifted off from Andøya Spaceport in Norway on March 30, 2025. About 30 seconds later, the flight-termination system ended the mission and the rocket made an unpowered descent into the sea. Isar's investigation traced the failure to an unintended opening of a vent valve and a loss of attitude control at the start of a roll manoeuvre. The company said the safety system behaved as designed and that the vehicle never threatened the public. The second mission, called Onward and Upward, is intended as a qualification flight rather than a routine commercial service. Its payload consists of five CubeSats and one experiment. Getting that mission off the pad has taken repeated attempts. Isar's own mission log records a pressurisation-valve problem in January, a vessel entering the restricted sea area and a fuel-temperature issue in March, a suspected leak in a composite overwrapped pressure vessel in April, and off-nominal behaviour in fluid systems in June. None of those delays proves that Spectrum cannot work. They do show the distance between possessing a launch vehicle and operating one at an industrial rhythm. The rocket itself is a two-stage, expendable vehicle using liquid oxygen and propane. Isar lists nine Aquila engines on the first stage, one on the second, and advertised payload capacities of up to 1,000 kilograms to low Earth orbit or 700 kilograms to sun-synchronous orbit on its Spectrum specifications page. Nova Scotia offers a clear path over the Atlantic. Spaceport Nova Scotia sits on the Atlantic coast near Canso. Its practical advantage is not simply that it is far north, but that rockets can depart over open water toward polar and other high-inclination orbits without flying over densely populated territory. + EDITOR'S PICK Those trajectories matter for Earth-observation, climate, communications and reconnaissance spacecraft. Maritime Launch Services presents the site as a multi-user orbital spaceport serving civil, commercial and defence missions. The facility is Canada's first licensed commercial orbital launch site, but it has not yet sent a payload into orbit. The Isar announcement targets the first orbital launches from the complex in 2028. For Isar, Canada adds a second regulatory system, a second customer base and a second launch corridor to its Norwegian operation. That diversification only becomes useful once both the rocket and the ground infrastructure are ready at the same time. Europe is paying for more than launch capacity. Isar's language about sovereign access is not ornamental. European governments want additional ways to place civil and defence spacecraft in orbit without relying on a single foreign provider or one domestic rocket family. The European Space Agency's European Launcher Challenge is built around that goal. ESA shortlisted Isar, Rocket Factory Augsburg, MaiaSpace, PLD Space and Orbital Express Launch, which later withdrew, and says more than €900 million has been earmarked for the programme. That is not the same as an unconditional award to Isar and RFA. The programme requires selected providers to demonstrate an orbital launch by 2027, with later support tied to operational launches and capacity upgrades. QUIZ · EDITORS' PICK Most assessments tell you what type you are. This one tells you what you're avoiding. Your Direct Message: a free 8-minute psychological assessment from DMNews. Maps the Tension you've normalized, the Noise you hide behind, and the one truth your therapist is building toward but hasn't said yet. The benchmark for high cadence is punishing. SpaceX flew 165 Falcon 9 missions in 2025, supported by mature pads, reused boosters and years of accumulated flight experience. Spectrum is expendable, so every launch requires another complete vehicle. That leaves Isar facing the same production and cost pressure described in Space Daily's examination of the economics of reusable rockets. Forty launches from Nova Scotia in one year would mean roughly one flight every nine days. Achieving that from a new pad with a new rocket would require reliable manufacturing, rapid processing, range availability and a deep queue of payloads. The next proof is still in Norway. Isar says vehicles three through seven are already in production and that its new 40,000-square-metre factory near Munich is designed to support more than 30 rockets a year. Reaching the Canadian target while also serving Norway would require that system to expand further. The Nova Scotia timetable gives the company room. Construction is meant to proceed through 2027, with launches beginning in 2028 and the highest advertised cadence arriving no earlier than 2029. But the sequence cannot be reversed. Before a Canadian pad can host dozens of Spectrum flights, the rocket has to survive ascent, separate its stages and place a payload into orbit from Andøya. The next decisive scene is therefore not yet on Canada's Atlantic shore. It is on the Norwegian island of Andøya, where Spectrum must rise from the pad, pass the point at which its first flight rolled out of control, and keep burning beyond those first 30 seconds. Space Daily Editorial Team. The Space Daily Editorial Team produces content across its two editorial pillars: space industry news and Mind & Meaning. Spacedaily cover launches, missions, satellites, defense, and the technology of getting humans to space, alongside the psychology of ambition, isolation, and meaning under extremes. Articles reflect its team's collective editorial process, source verification, drafting, technical review, and editing, rather than a single writer's work. Space Daily takes editorial responsibility for content under this byline. For more on how Spacedaily work, see its editorial policy. Editors' Recommendations The Latest

Yahoo Finance
Jul 11th, 2026
German rocket firm Isar Aerospace signs $150M lease for Canadian launch pad

Germany's Isar Aerospace has signed a $150 million, 10-year lease with Maritime Launch Services to use Spaceport Nova Scotia for launching its Spectrum rocket. The agreement, announced on 7 July, allows Isar to design and operate pad infrastructure whilst MLS provides facilities for vehicle integration, testing and mission control. Development is scheduled to begin later this year, with first orbital launches targeted for 2028. By 2029, Isar aims to support up to 40 launches annually from the Canadian site. The deal marks Isar's expansion from Europe, where its first Spectrum launch from Norway's Andøya Spaceport in March 2025 ended in failure when the rocket tumbled shortly after liftoff. Subsequent launch attempts have faced weather and technical delays.