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Voyager Technologies

Vertical-integrated space and defense company

Propulsion Engineer 2

Full-Time
$90k - $125k
Junior
Bachelor's, Master's
Mojave, CA, USA
In PersonRelocation assistance is available for qualified candidates moving to Mojave, California.
Aerospace EngineeringPropulsion

About the job

Requirements
  • A bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a similar field is required.
  • At least 2 years of experience in propulsion system design, analysis, manufacture, integration, and/or testing is required.
  • Familiarity with fluid and thermal design and analysis using system-level modeling tools such as GFSSP, Amesim, or Thermal Desktop is required.
  • Familiarity with solid modeling is required; SolidWorks is preferred.
  • Experience designing or specifying components for fluid systems is required.
  • Ability to work collaboratively and multitask in a small team is required.
  • Ability to work independently with minimal guidance is required.
Responsibilities
  • Support the engineering team in the design and testing of rocket propulsion systems.
  • Size propulsion system components, including turbomachinery, combustion devices, valves, propellant feed systems, tanks, and pressurization systems.
  • Perform trade studies using propulsion system fluid-thermal models to inform design and operations.
  • Create solid models of propulsion components for modeling or hardware fabrication.
  • Create component specifications to guide vendor interactions and support procurement.
  • Develop test plans, execute tests, and post-process results for component and system testing.
  • Support testing operations for rocket engines and components.
  • Write technical reports and present to technical teams.
Desired Qualifications
  • A master's degree in Mechanical Engineering or Aerospace Engineering.
  • Experience with cryogenic propulsion systems, particularly liquid oxygen and liquid methane.
  • Experience leveraging additive manufacturing in engine design.
  • Analytical or scientific programming experience using Python, C, C++, or MATLAB.
  • Hands-on fabrication skills and willingness to work hands-on with pathfinder hardware.
  • Experience with rocket test facility design, integration, and/or operation.
  • Experience with Computational Fluid Dynamics using Ansys Fluent, including conjugate heat transfer.
  • Experience with rocket fuel handling equipment and operations.
  • Experience with rocket turbopumps.

About the company

Voyager Technologies uses a vertical integration approach to unify multiple space and defense firms, offering end-to-end space and defense capabilities. It operates in three segments—Defense & National Security, Space Solutions, and Starlab Space Stations—and earns much of its revenue from U.S. government contracts for missile defense, propulsion, and signals intelligence, while handling mission planning, payload integration, launch support, and on-orbit operations. Its flagship Starlab space station, developed with Airbus for a single-launch deployment on a SpaceX Starship, plus the Bishop Airlock and lunar initiatives from Astrobotic, illustrate its integrated space infrastructure. The company aims to grow the commercial space economy and extend human activity in space by providing a continuous private space platform in low Earth orbit for government and commercial users.

Company Size

201-500

Company Stage

IPO

Headquarters

Denver, Colorado

Founded

2019

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Simplify's Take

What believers are saying

  • Voyager posted $53 million Q2 2026 revenue, up 51%, with $336 million backlog.
  • NASA awarded Voyager $298 million in July 2026 after completing the Astrobotic acquisition.
  • Golden Dome-related awards reached $84 million, boosting missile-defense demand in 2026.

What critics are saying

  • Voyager issued $402.5 million of 0% notes on September 28, 2026, increasing dilution risk.
  • Starlab generates no revenue today, leaving Voyager dependent on NASA milestone funding.
  • A CLPS delay or Starlab slip would hit Voyager's growth story before 2028.

What makes Voyager Technologies unique

  • Voyager owns Starlab, NASA-validated with Commercial Critical Design Review completed February 2026.
  • Voyager bundles defense, ISS services, and lunar systems through Astrobotic integration.
  • NASA renewed Voyager's ISS mission-services contract through 2030, extending operational relevance.

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Benefits

  • Wellness Program

Company News

Yahoo Finance
Oct 15th, 2026
Voyager's lunar lander clears testing, but shares are down 22% in a month at $25.82

Voyager Technologies (VOYG) said its Griffin Mission One lunar lander cleared acceptance testing, a key step towards a planned Moon launch in late 2026. The stock closed at $25.82, down 21.99% over 30 days and 29.84% over one year. Voyager has a market value of about $1.61 billion. It reported revenue of $174.23 million and a net loss of $136.97 million. Analysts expect revenue growth of about 47.7% a year, but forecast no profit for the next three years. Valuations differ widely. A popular investor narrative puts fair value at $385.20 a share, while the stock trades at 9x sales, against 3.8x for US aerospace and defence peers.

Robodaily
Sep 29th, 2026
Helicity Space raises $5M seed funding for fusion propulsion technology

Helicity Space has raised $5 million in seed funding to develop its fusion-powered space propulsion technology. The round was led by Airbus Ventures, TRE Ventures, Voyager Space Holdings, E2MC Space, Urania Ventures, and Gaingels. The company's Helicity Drive technology uses plectonemic plasma jets, magnetic reconnection, and peristaltic magnetic compression to create scalable fusion propulsion engines. Founders Dr Setthivoine You, Marta Calvo, and Stephane Lintner bring expertise from plasma physics, chemical engineering, and finance. The technology aims to make space travel faster, safer, and more fuel-efficient. Dr You addressed concerns about the modest funding amount, explaining their scalable approach allows starting small with fewer plasma sources before expanding. The company is focusing on space propulsion first before pursuing terrestrial energy applications.

MarketScreener
Sep 24th, 2026
Voyager Technologies prices $350M convertible notes to fund expansion and acquisitions

Voyager Technologies has priced its offering of $350 million in convertible senior notes due 2032. The notes carry a 0% interest rate and will settle on 28 September 2026. The initial conversion price is approximately $40.82 per share, representing a 30% premium over Voyager's Class A common stock price of $31.40 on 23 September 2026. Initial purchasers have an option to buy an additional $52.5 million in notes. Voyager expects net proceeds of approximately $340.4 million after fees. The company will use roughly $45.7 million to fund capped call transactions, with the remainder supporting general corporate purposes, including organic growth and strategic acquisitions. The capped call transactions have an initial cap price of $78.50 per share, a 150% premium over the current stock price. These are designed to reduce potential dilution upon conversion of the notes.

Yahoo Finance
Sep 15th, 2026
Voyager delivers quick disconnect plates for ESA's eco-friendly methane rocket

Voyager Technologies has delivered and integrated quick disconnect plates for the European Space Agency's In-Flight Demonstrator rocket. The company worked under contract to Avio, ESA's prime contractor for the PNRR-STS Programme, as part of Italy's National Recovery and Resilience Plan. Voyager designed, built and integrated a dual-interface quick disconnect system comprising a flight unit installed internally and a ground unit mounted externally. These components connect internal fuel systems to ground infrastructure and safely detach during launch operations. The IFD is a single-stage rocket equipped with a cryogenic liquid oxygen and methane engine. The project is funded by the European Union's NextGenerationEU programme and Italy's Complementary Fund. Matt Magaña, president of Space, Defense & National Security at Voyager, said the delivery demonstrates the company's ability to provide flight-ready systems efficiently.

Yahoo Finance
Aug 11th, 2026
Voyager Technologies raises 2026 guidance after record Q2 revenue of $53M and $336M backlog

Voyager Technologies reported record second-quarter 2026 results, with revenue reaching $53 million, up 51% sequentially. The company also achieved record bookings of $113 million and record backlog of $336 million. Chief executive Dylan Taylor said demand across defence modernisation, national security, and the space economy continues to accelerate. He noted that bookings consistently outpace revenue, indicating durable customer demand. Voyager recently completed the acquisition of Astrobotic, which expands its participation in the lunar economy. The company raised its full-year revenue guidance based on strong performance and growing backlog. Taylor emphasised that programmes are transitioning from development into production, providing increased visibility into the remainder of 2026 and 2027.