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CesiumAstroRemote$134k – $161kPosted 27 April 2026
Job Description
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Senior Software Systems Engineer
Westminster, COEngineering – Systems /Full-Time /On-Site
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Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.
We are looking to add a Senior Software Systems Engineer to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you.
In this position, you will be responsible for translating system-level operational concepts, customer requirements, and architecture into detailed software requirements, verification strategies, and integrated technical solutions for complex embedded systems. This role serves as a critical bridge between Systems Engineering and Software Engineering, ensuring requirements are properly decomposed, traceable, testable, and aligned to overall program objectives.
The position is organizationally aligned within the Systems Engineering function while working closely day-to-day with the Software Engineering team to support planning, development, integration, and verification activities. This role is instrumental in defining software verification approaches, required hardware/software configurations, and ensuring system functionality meets mission and performance objectives.
JOB DUTIES AND RESPONSIBILITIES
Analyze customer, mission, and system-level requirements and decompose them into clear, verifiable software-level requirements.
Ensure software requirements maintain traceability to higher-level system requirements, architecture, and Concept of Operations (CONOPS).
Collaborate with systems, software, and hardware teams to refine requirements for completeness, feasibility, and technical accuracy.
Support requirements management processes, baseline control, and change impact assessments.
Identify requirement gaps, ambiguities, and risks early in the development lifecycle.
Develop software verification approach including verification descriptions, methods (test, analysis, demonstration, inspection), levels, and acceptance criteria aligned to system and program requirements.
Identify required verification configurations, including hardware setups, software loads, firmware versions, and test environments.
Support verification cross-reference matrices (VCRM), traceability matrices, and evidence packages.
Partner with test and software teams to ensure efficient execution of planned verification activities.
Serve as a technical liaison between Systems Engineering and Software Engineering teams.
Support software integration planning, readiness reviews, and release coordination.
Evaluate impacts of software changes to system behavior, interfaces, and verification scope.
Participate in architecture, design, and interface reviews to ensure requirements alignment.
Support issue resolution involving system functionality, interoperability, and software performance.
Apply working knowledge of embedded systems architectures, constraints, and development environments.
Understand hard ... (truncated, view full listing at source)
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