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Recent Graduate Software Engineer I


Job Location:

Broomfield, CO - USA

Yearly Salary: $ 80000 - 105000
Posted: 2 September 2026 (5 hours ago)
Application Deadline: 30 November 2026
Vacancies: 1 Vacancy

Job Summary

Katalyst Description:

Katalyst is an American technology companyfocused on dynamic space operations.We are building a fleet ofdual-use multipurposerobotic space vehiclestocreate thefuture where maneuvering upgrading refuelingresupplyand 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 spaceexplorationthat strengthens national security and ensures freedom of action in an increasingly contested domain.

Katalyst Culture:

Working at Katalyst is intense hands-on and deeply rewarding. Youll 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 its harder. Youll work closely with thoughtful driven teammates who push each other to do their best.

WhatYoullDo

  • Contribute directly to the design development integration test and operation of spacecraft software including flight software embedded and real-time systems autonomy simulation mission software and ground systems.
  • Own well-scoped software engineering problems from requirements and architecture through implementation unit and integration testing debugging documentation deployment and closure with support from senior engineers.
  • Work hands-on with flight and embedded software Linux environments C/C and Python codebases simulators hardware-in-the-loop systems networking telemetry logs test infrastructure and real spacecraft interfaces rather thanoperatingonly at the documentation layer.
  • Participate in design and code reviews software integration simulation campaigns hardware-in-the-loop testing anomaly investigations mission-readiness activities and operational support; communicate software behavior risks assumptions and decisions clearly.
  • Collaborate across GNC electrical mechanical propulsion systems mission operations and test teams to understand software interfaces and system-level impacts on spacecraft behavior and mission performance.
  • Build engineering judgment by comparing expected software behavior simulations interface assumptions timing telemetry and test results against hardware-in-the-loop integration and operational dataidentifyingdiscrepancies and iterating toward reliable mission software.
  • Document requirements assumptions interfaces architecture code behavior test results procedures and technical decisions so others can review reproducemaintain test and integrate the work.
  • Take increasing ownership as technical capability grows progressing from supervised implementation and test tasks toward independent feature- service- interface- or subsystem-level responsibility.
  • Support spacecraft mission execution by helping translate missionobjectivesand constraints into credible software architectures algorithms interfaces test approaches operational tools and mission-support capabilities.

WhatWereLooking For

  • Bachelors degree completed or expected before start date in Computer Science Computer Engineering Software Engineering Electrical Engineering Aerospace Engineering Robotics Applied Math or a closely related technical field.
  • Strong academic or project-based grounding in data structures algorithms computer architecture operating systems embedded or real-time software networking software design controls/autonomy software or related software engineering fundamentals with the ability to explain technical reasoning from first principles.
  • Demonstrated hands-on software engineering experience through internships research student spacecraft or robotics teams capstone projects personal projects open-source work laboratories competitive programming or prior employment.
  • Ability to break down ambiguous software problemsidentifyassumptions and interfaces designappropriate architecturesor algorithms make reasonable implementation tradeoffs andvalidatework through unit tests simulation integration testing hardware-in-the-loop telemetry or data.
  • Clear written and verbal technical communication including the ability to explain what was personally architected coded integrated tested deployed or debugged versus what was completed by a team.
  • Comfort learning new spacecraft software architectures interfaces embedded platforms tools protocols test methods and mission concepts quickly in an environment where responsibilities may evolve with program needs.
  • Ability to collaborate closely with GNC electrical mechanical propulsion systems test and mission-operations engineers and accept direct technical feedback without losing ownership of the problem.
  • Ability tocomply withapplicable export-control requirements and customer-access restrictions.

Your Ideal Background

Preferred

  • Internship research co-op or project experience in spacecraft aerospace robotics autonomy embedded systems real-time software defense technology high-reliability software or another technically demanding environment.
  • Experience taking a software feature embedded application autonomycomponent simulation service or interface from concept and design into implementation integration test deployment or operation and using the results to drive changes.
  • Exposure to C/C Python embedded or real-time software Linux networking testing simulation robotics autonomy hardware-in-the-loop environments flight software or mission / ground software.

  • Additional Requirements: Must be willing to work hands-on in the office lab integration or test environment as required and to support occasional extended hours during critical test or mission activities.

Compensation and Benefits: Your base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills education and experience. The anticipated salary range for this role is $80000 - $105000 annually.

Base salary is just one part of your total rewards package at Katalyst. You will also be eligible for long-term incentives in the form of the Employee Stock Option and Equity Plan as well as a relocation bonus and other discretionary bonuses. You will also receive access to comprehensive medical vision and dental coverage and unlimited Paid Time Off.

At Katalyst our work on projects involving the U.S. Department of Defense requires adherence to International Traffic in Arms Regulations (ITAR) 22 C.F.R. Parts 120-130 which requires compliance with U.S. export laws before allowing employees to perform certain positions. Currently our available roles necessitate access to ITAR-controlled information and as a result Katalyst would have to ensure any non-US person is authorized access to ITAR information before the commencement of employment. We are committed to equal employment opportunities and all qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity or national origin.


Required Experience:

IC


About Company

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Katalyst is building a fleet of autonomous robotic spacecraft operating together on orbit, servicing and upgrading systems in real time.

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