Full-Time

Senior Guidance, Navigation, and Control Engineer

Updated on 8/18/2026

Katalyst Space Technologies

Katalyst Space Technologies

51-200 employees

Post-launch satellite upgrade services

Compensation Overview

$140k - $240k/yr

+ Long-term incentives + Employee stock options/equity + Relocation bonus + Discretionary bonuses

Broomfield, CO, USA

In Person

Bachelor's

Category
Aerospace Engineering (1)
Required Skills
Python
Git
Machine Learning
Quality Assurance (QA)
C/C++
Linux/Unix

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Requirements
  • A bachelor's degree in a technical engineering discipline is required.
  • At least 3 years of experience working in guidance, navigation, and control is required.
  • Software development experience in Python is required.
  • Experience developing, debugging, and deploying guidance, navigation, and control sensors, effectors, and algorithms used in real-world applications or projects is required.
  • Ability to work in a fast-paced, autonomous, and demanding startup environment is required.
  • Proven ability to lead a project from conception to completion is required.
  • Must be willing to work extended hours and weekends as needed.
  • Employees must be authorized to access International Traffic in Arms Regulations-controlled information in accordance with U.S. export laws.
Responsibilities
  • Architect hardware and software solutions for space mission objectives involving space domain awareness and rendezvous, proximity operations, and docking, with an emphasis on autonomy.
  • Evaluate and select mission techniques, including machine-learning methods, physics-informed solutions, stochastic methods, and Kalman filters.
  • Support proposal-capture efforts through feasibility analysis and engagement with private and public partners, the Department of Defense, other government agencies, and commercial partners.
  • Develop architectures, lead trade studies, and lead the guidance, navigation, and control team from conceptualization through flight for rendezvous, proximity operations, and docking missions.
  • Design algorithms, simulations, and tools for orbit determination, state estimation, and uncertainty propagation supporting space domain awareness efforts.
  • Analyze and source datasets for algorithm training, validation, and performance evaluation.
  • Build and test modeling and simulation tools for orbital and cislunar dynamics, sensor modeling, and visualization.
  • Model, simulate, and validate six-degree-of-freedom spacecraft dynamics, sensors, and algorithms, including those for rendezvous, proximity operations, and docking missions.
  • Collaborate with software and guidance, navigation, and control teams to implement algorithms in flight software.
  • Support hardware-in-the-loop testing for integrated system validation.
  • Design concepts of operations that balance thermal, power, momentum, and communications constraints for spacecraft missions.
  • Provide mission-operations training and support.
Desired Qualifications
  • Experience with cradle-to-grave spacecraft design, testing, verification and validation, and in-orbit mission operations.
  • Expertise in guidance, navigation, or control.
  • Experience with multi-body astrodynamics.
  • Experience with Git, Linux, and Basilisk.
  • Software development experience in C and C++.
  • Ability to identify and solve complex problems with little to no supervision or direction.
  • Excellent written and verbal communication skills.
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 $30 million Swift mission validates demand for on-orbit rescue services.
  • Katalyst raised $12 million on June 16, 2026, funding NEXUS and 2027 GEO expansion.
  • DIU selected Katalyst on August 14, 2026, expanding its government pipeline.

What critics are saying

  • LINK’s July 25 spin and communications loss exposed fragile commissioning margins.
  • If Swift capture fails before orbital decay worsens, NASA loses Katalyst’s flagship proof point.
  • Deorbit-as-a-service pits Katalyst against Firefly, D-Orbit USA, and Starfish for DIU deals.

What makes Katalyst Space Technologies unique

  • Katalyst proved unprepared-satellite capture with LINK, launched July 3, 2026, for NASA Swift.
  • Its nine-month build beat traditional spacecraft schedules, signaling rapid-response servicing execution.
  • NEXUS-1 targets GEO upgrades, inspection, and life extension before commercial scaling.

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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

5%

1 year growth

5%

2 year growth

-3%
SpaceNews
Aug 19th, 2026
Katalyst Space and NASA abandon plans for Swift reboost.

Katalyst Space and NASA abandon plans for Swift reboost. WASHINGTON - Katalyst Space and NASA have called off plans to use the company's Link spacecraft to raise the orbit of the agency's Swift gamma-ray observatory, citing attitude-control problems with the spacecraft. The company announced Aug. 20 that it concluded, in consultation with NASA, that its Link spacecraft will not attempt to grapple Swift and raise its orbit as originally planned. The company said the decision was based on "ongoing attitude control issues" with Link but did not elaborate. Katalyst launched Link July 3 on a Pegasus XL rocket on a mission to grapple Swift and raise its orbit. While the company initially reported Link was in good condition after launch, it stated July 28 that the spacecraft had entered a multi-axis spin caused by attitude-control problems, including the loss of two of its three reaction wheels. The spacecraft's reaction control system thrusters were only partially working. By early August, the company said it had slowed that spin from 9 degrees per second to 1.47 degrees per second by using the electric thrusters intended to change the spacecraft's orbit. It subsequently reported that controllers installed new flight software on the spacecraft. "We expect the updated configuration to support rendezvous operations and, in the next phase of the mission, attempt to capture and boost NASA's Neil Gehrels Swift Observatory," it said in an Aug. 11 post. Link was then expected to reach Swift in late August. Neither Katalyst nor NASA elaborated on what led them to conclude that Link could not safely grapple and boost Swift. Both, though, said that Link would perform rendezvous and proximity operations in the vicinity of Swift in place of a reboost. "Katalyst designed, developed and launched an experimental spacecraft to go after an ambitious mission on an aggressive timeline. We took on this high-risk, high-reward challenge and are proud of the milestones we reached along the way," Ghonhee Lee, chief executive of Katalyst Space Technologies, said in a statement. The announcement comes almost exactly a year after NASA issued study contracts to Katalyst as well as Cambrian Works, partnered with Astroscale U.S., to examine the feasibility of reboosting Swift. The studies came after agency assessments found that Swift's orbit was decaying faster than expected because of increased atmospheric drag, linked to high solar activity, that would cause Swift to reenter as soon as late 2026. In September, NASA awarded Katalyst a $30 million contract to carry out the reboost mission, repurposing a spacecraft the company had been developing for a low Earth orbit demonstration of its satellite servicing technology. Throughout the process, both Katalyst and NASA emphasized that this was a risky mission but one with potential benefits that went beyond simply saving Swift. "We knew this was a high-risk, high-reward mission: a first-of-its-kind attempt, developed on an unprecedented timeline driven by the sun's activity," said Shawn Domagal-Goldman, director of NASA's astrophysics division, in an agency statement. "We were all hoping for more science from Swift. But we knew the takeaways from this mission would be worthwhile either way, and we have gained so much through the series of accomplishments up to this point." "NASA should be willing to move quickly and take smart risks when the potential return is worth it, and that is exactly what we did with this mission," NASA Administrator Jared Isaacman said in the statement. "The team moved with extraordinary speed to give Swift a chance to carry out more science while advancing capabilities America will need for satellite servicing in the future." The company said it will use the remaining operations of Link to learn lessons that can be incorporated into its future satellite servicing missions. The company was one of three selected by the Space Development Agency and Defense Innovation Unit on Aug. 13 for study contracts to provide deorbiting services. "We have already learned a tremendous amount, and now our job is to turn those lessons into something durable: building a repeatable playbook to inform future rendezvous and proximity operations and satellite servicing," Lee said. The decision to call off the reboost, though, means the end of Swift, a spacecraft launched in 2004 to monitor gamma-ray bursts and other energetic astrophysical phenomena. The spacecraft is now orbiting between 343 and 347 kilometers in altitude, and NASA said it expects the spacecraft to reenter later this year. NASA had effectively ended all science operations of Swift earlier this year as part of efforts to change the spacecraft's operating profile and reduce atmospheric drag, buying more time for the reboost mission. The agency did not say whether it will try to reactivate those instruments for the spacecraft's final few months. "NASA will continue to prioritize finding new options to react rapidly to cosmic events, using current missions to help fill the gap in the meantime," the agency stated.

VCPost
Aug 17th, 2026
DOD taps Firefly Aerospace to clear space debris.

DOD taps Firefly Aerospace to clear space debris. Published: Aug 17 2026, 12:20 AM EDT The U.S. Department of Defense has awarded Firefly Aerospace a contract to design a satellite deorbit system using its Elytra spacecraft as part of a broader push to clear orbital debris. The agreement, announced August 13, 2026, tasks the Cedar Park, Texas-based company with completing a preliminary design review (PDR) for a mission that would remove end-of-life satellites from orbit. The contract was issued jointly by the Defense Innovation Unit (DIU) and the Space Development Agency (SDA), both of which are working to accelerate commercial "Deorbit-as-a-Service" capabilities for low-Earth orbit (LEO) congestion, according to Fool. Once the PDR is complete, Firefly will be eligible to compete for the next phase, which includes launch and on-orbit spacecraft operations. Firefly's mission design calls for launching the Elytra vehicle into LEO, where it would maneuver to a client space object, perform rendezvous and proximity operations, survey the target, and then execute the deorbit service. The company says its proprietary deorbit system integrated on Elytra can handle satellites of vastly different sizes and configurations, and is capable of operating not only in LEO but also in medium Earth orbit (MEO) and geostationary Earth orbit (GEO), Yahoo Finance reported. Firefly CEO Jason Kim said the system was designed to be "highly efficient" and "cost-effective," aligning with a White House order prioritizing orbital debris mitigation. Alongside Firefly, the SDA and DIU have awarded preliminary design and risk-reduction contracts to Katalyst Space and D-Orbit, expanding on earlier work that included a $52.5 million proof-of-concept deal with Starfish Space. After design reviews, the agencies plan to select one contractor for a full on-orbit demonstration of the deorbit capability. Firefly is already under contract with DIU for a separate space domain awareness mission using Elytra, with a targeted launch no earlier than 2027. The company has been integrating and testing core flight structures for that mission as it moves toward spacecraft integration, as per Morning Star.

SpaceNews
Aug 16th, 2026
U.S. defense agencies tap three companies for satellite disposal study.

U.S. defense agencies tap three companies for satellite disposal study. Firefly, D-Orbit USA and Katalyst will compete to show how commercial operators could capture and remove aging spacecraft WASHINGTON - Three companies have been selected to study options for providing satellite deorbiting services to the U.S. government as the Pentagon explores whether disposal of aging spacecraft can be purchased from commercial operators rather than handled through a dedicated government capability. D-Orbit USA, Firefly Aerospace and Katalyst Space received contracts of undisclosed value from the Defense Innovation Unit and the Space Development Agency for a "deorbit-as-a-service" project, the agencies announced. The work is focused on relocating spacecraft that were not designed to be serviced and may be unable to cooperate with an approaching vehicle. "Through this effort, SDA and DIU are developing a scalable commercial capability to safely rendezvous with, capture and de-orbit unprepared or non-cooperative satellites," the agencies said. "The selected companies will begin with preliminary design and risk-reduction activities, after which SDA and DIU will together evaluate their technical maturity, mission approach, schedule and affordability before deciding which solution proceeds to a full on-orbit demonstration." The awards broaden an SDA effort to develop commercial options for disposing of satellites in its low-Earth-orbit architecture. In 2024, the agency awarded feasibility studies to six companies, including Starfish Space, to examine on-demand deorbit services. The three new participants enter the competition with different levels of flight experience and different approaches to the central problem of reaching and moving a spacecraft that may not have been built for docking or servicing. Firefly said Aug. 13 that it proposed using its Elytra maneuvering spacecraft to rendezvous with a client satellite nearing the end of its life, conduct proximity operations and inspection, and carry out the maneuver needed to dispose of it. Elytra has yet to fly its first mission, although the spacecraft incorporates hardware and software derived from Firefly's Blue Ghost lunar program. Katalyst is pursuing perhaps the most directly relevant test of capturing an unprepared spacecraft. Its Link robotic servicing vehicle launched July 3 on NASA's Swift Boost mission and is intended to rendezvous with the Neil Gehrels Swift Observatory, secure the satellite with robotic arms and raise it to a higher orbit. Link encountered attitude-control problems during commissioning in late July. The company said it uploaded new flight software that restored attitude control using the spacecraft's remaining actuators, allowing preparations for the mission to continue. D-Orbit USA is a startup focused on space logistics services, formed in 2024 as a U.S.-based joint venture between Italy's D-Orbit and a group of American aerospace executives. DIU and SDA have said a viable deorbit service would have to combine several activities into a repeatable operation: getting a servicer into the correct orbit, locating and approaching a target autonomously, determining its attitude and motion, capturing it without generating debris, and supplying enough propulsion to dispose of the combined mass. It would also have to do so at a price that makes commercial procurement attractive.

WebWire
Aug 12th, 2026
NASA Swift boost spacecraft prepares to continue mission.

NASA Swift boost spacecraft prepares to continue mission. WEBWIRE - Wednesday, August 12, 2026 Katalyst Space successfully uploaded a flight software update for its LINK spacecraft, which is set to boost NASA's Neil Gehrels Swift Observatory to a higher orbit. The software update's new attitude control algorithms are designed to maintain LINK's stability using the spacecraft's remaining actuators. The team's work has prepared LINK to continue its approach toward Swift, before attempting to capture and raise Swift to a higher orbital altitude. Katalyst will continue to work closely with NASA, evaluating LINK's performance at each phase, as the team performs a series of burns and maneuvers in the coming days to align LINK's orbit with Swift. In the meantime, the Swift team continues with its innovative new approach to operating the observatory, which has successfully reduced drag and slowed Swift's orbital decay. Swift is currently at an altitude of about 216 miles (347 kilometers). An orbit-raising maneuver would become more difficult below an average altitude of about 185 miles (300 kilometers). Learn more from Katalyst, and monitor NASA's Swift blog for continued updates: https://science.nasa.gov/blogs/swift WebWireID358800 This news content was configured by WebWire editorial staff. Linking is permitted. Distribute your news. * Every day, hundreds of individuals and companies choose WebWire to distribute their news. * WebWire places your news within numerous highly trafficked news search engines generating leads and publicity. * Submit Your Release Now!

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