Principal Guidance, Navigation, and Control Engineer

Katalyst Space Technologies•Broomfield, CO

About The Position

We build robotic spacecraft that enable dynamic space operations, creating a future where maneuvering, upgrading, refueling, and exploration are as routine as they are on Earth. Getting to space and overcoming the gravity well is only half the story. What you do there is the future. We are not building the trains. We are building the machines that lay down the tracks. By developing the foundational capabilities that make sustained, responsive operations possible, we enable a new era of space activity that strengthens national security and ensures freedom of action in an increasingly contested domain. Working at Katalyst is intense, hands-on, and deeply rewarding. You’ll take real ownership and see your work move from concept to operations in an environment where the problems are hard and the impact is real. We value humility, craftsmanship, and doing things the right way, even when it’s harder. You’ll work closely with thoughtful, driven teammates who push each other to do their best. Our technology hinges on flawless execution of rendezvous, proximity operations and docking (RPOD) and stands at the intersection of Space Domain Awareness (SDA), robotics, and in-space upgrades. Complex algorithms are essential to unlocking this vision. This is the domain of GNC Engineers. You’ll primarily focus on the design, build, test, analysis and in orbit operation of the GNC system central to our rendezvous and proximity operations spacecraft and Space Domain Awareness (SDA) products. If you have a background expertise in a relevant domain such as orbital mechanics, optimal control, spacecraft systems design, sensor fusion and navigation, and/or software development and you’re excited about making a big impact while leaning into collaboration—surrounded by Flagstaff’s Ponderosa pines or the Denver Rockies—we’d love to hear from you!

Requirements

Bachelor’s degree in a technical engineering discipline
5+ years of experience working in guidance, navigation, and control
Software development experience in Python
Experience developing, debugging, and deploying GNC sensors, effectors and algorithms that have been used in real world applications/projects
Ability to work in a fast-paced, autonomously driven, and demanding start-up atmosphere
Proven ability to lead a project from conception to completion

Nice To Haves

Experience with cradle-to-grave spacecraft design, testing, verification/validation and in-orbit mission operations
Expertise in either guidance, navigation or control
Experience with multi-body astrodynamics
Experience with Git, Linux and Basilisk
Software development experience in C/C++
Capable of identifying and solving complex problems with little to no supervision or direction
Excellent communication skills both written and verbal

Responsibilities

Architect solutions necessary to accomplish space mission objectives around space domain awareness and RPOD with an emphasis on autonomy, from both a hardware and software perspective.
Evaluate and select appropriate techniques to achieve mission such as machine learning methods, physics-informed solutions, stochastic methods, Kalman Filters, etc.
Assist in proposal capture efforts with feasibility analysis and engage with private/public partners, Department of Defense, Other Government Agencies, and other commercial partnerships.
Develop architecture, lead trade studies and lead GNC team from conceptualization to flight for RPOD missions
Design algorithms, simulations, and tools for orbit determination, state estimation, uncertainty propagation to support SDA efforts
Analyze and source datasets for training and validation or algorithm performance.
Build and test modeling and simulation tools for orbital/cislunar dynamics, sensor modeling, and visualization.
Six degree of freedom modeling, simulation and validation of space craft dynamics, sensors and algorithms, including for RPOD missions.
Collaborate with the software and GNC teams to implement algorithm in flight software.
Heavily support hardware-in-the-loop testing for integrated system validation.
Design concepts of operations (CONOPS) that balance thermal, power, momentum and communications for spacecraft missions.
Provide mission operations training and support.