Full-Time

Software Engineer 1

Model and Simulation

Katalyst Space Technologies

Katalyst Space Technologies

51-200 employees

Post-launch satellite upgrade services

No salary listed

Broomfield, CO, USA

In Person

Category
Software Engineering (1)
Required Skills
Python
C/C++

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Requirements
  • 1-3 Years of experience in modeling and simulation for complex aerospace missions
  • 2-3 years working in C++ and Python
  • Strong understanding of object-oriented software development practices
  • Ability to understand new challenges quickly, formulate a plan, get buy-in, and execute
  • Understanding complex distributed systems, and how the components you design and deliver will fit into those larger systems
  • Excellent problem-solving skills and attention to detail
  • BS in Aerospace Engineering, Physics, Computer Science or closely related STEM field
  • Must be willing to work extended hours and weekends as needed
Responsibilities
  • Help create models and sims for cross domain uses
  • Learn how to convert data sheets into code
  • Aid the team in creating AI&T testing tool suite to aid in SITL testing
  • Maintain and create coding environment
  • Verify model and sims against hardware
Desired Qualifications
  • Experience simulating in 6-DOF relative motion and RPOC
  • Contributed to previous digital twin efforts
  • Working knowledge in multiple at least one subsystems such as GNC, Flight Dynamics, EPS, Propulsion, etc
  • Previous experience in simulations frameworks such as Basalisk, STK, GMAT
  • Working knowledge of distributed compute frameworks
Katalyst Space Technologies

Katalyst Space Technologies

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Katalyst Space Technologies upgrades satellites after they are launched. It offers a post-launch upgrade service that adds or improves satellite capabilities without the need to launch a new spacecraft. The process centers on an “upgrade economy” where operators pay for modification and capability enhancements, often paired with life-extension work, to extend a satellite’s useful life and keep its features current amid rapid space changes. The company differentiates itself by focusing on post-launch adaptability rather than building new satellites, reducing waste and orbital congestion and enabling testing of new tech on existing platforms. Its clients are established space companies and government agencies seeking to unlock new revenue and access to markets without the high costs and risks of new launches. The goal is to provide a sustainable, cost-effective way for satellite operators to adapt to evolving space environments and maintain competitiveness.

Company Size

51-200

Company Stage

Series A

Total Funding

$12.9M

Headquarters

Flagstaff, Arizona

Founded

2019

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Simplify Jobs

Simplify's Take

What believers are saying

  • NASA's Swift mission validates orbital capture for aging, high-value satellites.
  • The upgrade economy lowers replacement-launch costs for operators and governments.
  • Acquisition of Atomos Space expands rendezvous, docking, and servicing execution.

What critics are saying

  • LINK mission failure would damage Katalyst's flagship proof point and sales narrative.
  • Government procurement dependence exposes revenue to federal budget shifts and delays.
  • Large orbital expansion from LEO to cislunar markets stretches a small team thin.

What makes Katalyst Space Technologies unique

  • Katalyst sells post-launch satellite upgrades, not just new spacecraft builds.
  • LINK targets first-of-its-kind capture and boost of NASA's Swift Observatory.
  • The company combines life extension, hardware upgrades, and space domain awareness.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

Stock Options

Company Equity

Relocation Assistance

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

5%

2 year growth

-4%
LabX Media Group
Jul 29th, 2026
A spacecraft sent to rescue NASA's Swift telescope from falling to Earth has begun an uncontrollable spin.

A spacecraft sent to rescue NASA's Swift telescope from falling to Earth has begun an uncontrollable spin. The telescope is predicted to crash down to Earth soon if it cannot be grabbed and pushed into a higher orbit. Unfortunately, IFLScience Limited now have a double rescue mission at hand. James Felton Senior Staff Writer James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile Edited by Laura Simmons A private spacecraft sent on a mission to rescue NASA's Swift telescope from crashing back down to the Earth has run into its own problems, going into an uncontrollable spin over the weekend. In 2004, NASA launched the Neil Gehrels Swift Observatory into low-Earth orbit, at the height of around 600 kilometers (372 miles). In the two decades since then it has proved invaluable, rapidly detecting and studying high-energy cosmic events, including gamma-ray bursts and supernovae, as well as identifying these targets swiftly for follow-up by other observatories. While the observatory began at a reasonable height, its orbit has decayed over time thanks to atmospheric drag. In 2023, it began to look a little hairy for the telescope, with models showing that it could come crashing down to Earth in the 2030s, or within the next few years. Then 2024 hit the telescope pretty hard. "In 2024, the Sun reached its solar maximum phase, triggering intense space weather that was more active than expected," NASA explained. "The activity caused Earth's atmosphere to expand slightly and increased its drag on Swift. By early 2025, almost all the models had Swift re-entering by the summer of 2026." By the beginning of July 2026, the telescope had descended to 360 kilometers (226 miles) above the Earth, with models now suggesting it has a 90 percent chance of crashing to Earth before 2027. Rather than allowing the telescope to make its final descent, NASA took the opportunity to test out a private mission to attempt to capture it and deliver it once again to a higher orbit, raising it by 240 kilometers (150 miles). That mission was awarded to Katalyst Space Technologies, who designed and built the LINK robotic servicing spacecraft on the tight deadline of only a year. LINK launched on July 3, 2026, and initially seemed to be going well, with the spacecraft on track to approach, survey, grab, and boost the falling telescope. However, over the spacecraft has now gone into a "multi-axis spin" due to technical issues with its altitude control. "Over the weekend, Katalyst's LINK servicing spacecraft experienced issues with attitude control, causing the spacecraft to spin and resulting in sporadic communications," NASA explained in an update. "Preliminary investigation shows that two of LINK's three reaction wheels currently are not operable, and there is some loss of functionality in its cold gas thruster system." Whilst certainly not ideal, the team is attempting to get the spacecraft under control. With other systems in good health, the team is hopeful that the mission can be rescued, along with an orbiting observatory. "LINK's other major subsystems, electric propulsion, robotics, RPO sensing, and power are functioning properly, as well as S-band and L-band communications," Katalyst added in their own mission update. "Over the coming days, Katalyst will work to reduce the body rates using the gimbaled electric propulsion thrusters and stabilize the spacecraft. We have already begun this series of burns and are seeing the intended effect. " In the coming days, the team intends to update the control schemes of the spacecraft to reflect its current configuration and available, working thrusters. After that, the team will test out this new configuration, before attempting to move the spacecraft towards its target. "While these technical issues require a revised approach, our team is working around the clock alongside our NASA partners," Katalyst added. "The mission remains active and we continue to believe that with these changes, LINK has a viable path to rendezvous with Swift." Should these problems get sorted, LINK still has a tricky task ahead of it, in this first-of-its-kind mission. "Then LINK will approach Swift and complete a visual survey," NASA explains. "The Katalyst team has identified several potential grab points, but after 20 years of wear and tear in space, those locations need to be verified with the Swift team before moving forward." More updates on the mission will come as the double rescue attempt unfolds. Fingers crossed, everybody - IFLScience Limited do not want to lose this telescope. ORIGINALLY PUBLISHED 21 hours ago

TechCrunch
Jul 28th, 2026
NASA's $12M robot tumbling out of control after failing to reach Swift telescope

A spacecraft built by Katalyst Space to lift NASA's Neil Gehrels Swift Observatory to a higher orbit is tumbling out of control, the agency and company announced. The LINK spacecraft, launched on 3 July aboard a Northrop Grumman Pegasus rocket, began spinning over the weekend after two of its three reaction wheels failed and its thruster system encountered problems. Flight controllers are attempting recovery using backup thrusters to slow the spin. The mission marks NASA's first use of a private company to extend an observatory's lifespan. Swift, launched in 2004 to observe gamma ray bursts, has drifted towards Earth and requires orbital elevation to continue operations. Katalyst raised $12 million in June from Fortitude Ventures and Geodesic Capital.

IntelPro
Jul 28th, 2026
The robot NASA hired to lift a orbital telescope is tumbling out of control.

The robot NASA hired to lift a orbital telescope is tumbling out of control. According to NASA, two of the three reaction wheels that control the spacecraft's alignment have failed, and there are problems with one of the spacec A Katalyst Space robot that was launched to grab on to a space telescope and raise it to a higher orbit is now tumbling out of control, NASA and the company said today. The mission is the first time the space agency has hired a private company to lift one of its observatories to a higher orbit, allowing the observatory to continue operations beyond its expected lifespan. The Neil Gehrels Swift Observatory was launched in 2004, with the ability to swiftly point at ephemeral space events like gamma ray bursts. The spacecraft has been pulled back toward Earth and needs to be pushed back up to a higher orbit to continue doing its job. The LINK spacecraft was launched into space on July 3 on board a Northrop Grumman Pegasus rocket. Over the past several weeks, flight controllers have worked to commission the spacecraft, activating its various systems before it heads off to rendezvous with Swift. However, the spacecraft suffered issues controlling itself and began spinning over the weekend, making communications difficult as its antenna flips away from the planet. According to NASA, two of the three reaction wheels that control the spacecraft's alignment have failed, and there are problems with one of the spacecraft's thruster systems. Flight controllers are working to recover the spacecraft using another set of thrusters on the spacecraft to slow the spin, and they said in a statement that "we have already begun this series of burns and are seeing the intended effect." Katalyst's Kieran Wilson, the chief engineer for the mission, told reporters ahead of the mission that the spacecraft had been built incredibly quickly because of the urgent need to raise Swift in the next few months. "All this is challenging and risky," he said at the time. "There're a lot of spacecraft that have had far longer development cycles with far more funding behind them that have failed for mundane reasons." Katalyst raised a $12 million round in June to help support this mission, backed by investors Fortitude Ventures and Geodesic Capital. The company has also won funding from the U.S. military, which is interested in a dynamic vehicle that can service satellites or surveil rival spacecraft.

Gate.com
Jul 3rd, 2026
NASA and Katalyst launch robotic spacecraft to rescue $500 million aging satellite on Thursday.

NASA and Katalyst launch robotic spacecraft to rescue $500 million aging satellite on Thursday. 2026-07-03 07:23:05 According to NASA, the space agency and Arizona-based startup Katalyst launched a robotic spacecraft named LINK on Thursday (July 3) to rescue an aging observation satellite and demonstrate advanced orbital capture technology. The half-ton spacecraft was designed specifically to rescue the Neil Gehrels Swift Observatory satellite, valued at approximately $500 million. LINK will secure the aging satellite and move it to a higher, more stable orbit, potentially extending its operational lifespan by several years. Disclaimer: The information on this page may come from third-party sources and is for reference only. It does not represent the views or opinions of Gate and does not constitute any financial, investment, or legal advice. Virtual asset trading involves high risk. Please do not rely solely on the information on this page when making decisions. For details, see the Disclaimer. In-Depth Analysis

Fortune
Jun 28th, 2026
NASA hires startup to boost aging Swift telescope to higher orbit, Hubble could be next

NASA is launching a $30 million robotic rescue mission to save its Swift Observatory from falling back to Earth. The mission, scheduled to launch as early as this week, marks the first American attempt at such an operation. The Swift telescope, operational since 2004, is losing altitude due to intense solar activity and currently sits at 224 miles above Earth. Startup Katalyst Space Technologies will deploy a spacecraft called Link to boost Swift to a safer 373-mile orbit. The robotic craft features three arms with gripping mechanisms designed to catch and reposition the observatory. NASA turned off Swift's scientific instruments in February to slow its descent. If successful, the telescope could resume operations by September. The Hubble Space Telescope, also losing altitude, could receive a similar rescue mission in 2028 using Katalyst's next-generation robot.