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Salary
$133k – $161k per year
Location
In office (Westminster)
Seniority
Senior · 5+ years exp
Visa
H-1B filings in 12 months: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Oct 5, 2026. CesiumAstro scores A on the Alion truth index.

Overview
Company
Impact
Profile match
CesiumAstro is an American company founded in Austin in 2017 that builds active phased array communications payloads for satellites, aircraft and defence platforms. Its systems are software-defined and electronically steered, which lets a moving platform track several links at once without mechanical antennas, and the company manufactures them in house rather than integrating third-party subsystems. It sells mainly to defence customers and satellite operators, has raised venture funding from investors including Airbus Ventures and Lightspeed, and operates facilities in Austin, Colorado and the United Kingdom.

We are looking to add a Senior Spacecraft Systems Engineer to join our team. In this role you will be responsible for leading the systems engineering activities required to define, develop, integrate, verify, and support complex space systems throughout the product lifecycle. This role translates mission objectives, customer requirements, and system architecture into technical solutions that enable successful system integration and mission execution.

Working within a multidisciplinary engineering environment, the Senior Spacecraft Systems Engineer collaborates with software, hardware, mechanical, electrical, manufacturing, integration and test, mission operations, and program management teams to establish a fault management architecture ensure that space vehicles meet technical, operational, cost, and schedule objectives. This role provides technical leadership from concept development through design, integration, verification, launch, and operational support while contributing to technical decision-making and risk management.

JOB DUTIES AND RESPONSIBILITIES

  • Analyze customer, mission, and system-level requirements and decompose them into clear, verifiable system and subsystem requirements.
  • Ensure requirements maintain end-to-end traceability to customer requirements, system architecture, and Concept of Operations (CONOPS).
  • Define and manage hardware, software, electrical, mechanical, and data interfaces between system elements.
  • Collaborate with cross-functional engineering teams to refine requirements for completeness, feasibility, technical accuracy, and manufacturability.
  • Support requirements management, configuration management, baseline control, and engineering change activities.
  • Identify technical risks, requirement gaps, ambiguities, and design issues early in the development lifecycle.
  • Support system architecture development, technical trade studies, and engineering analyses to evaluate design alternatives and optimize system performance.
  • Develop system verification and validation strategies, including verification methods (test, analysis, demonstration, and inspection), acceptance criteria, and verification levels aligned with program requirements.
  • Define verification configurations, including hardware, software, firmware, and test environments required to support verification activities.
  • Develop and maintain verification documentation, verification cross-reference matrices (VCRM), requirements traceability matrices, and verification evidence packages.
  • Partner with Integration & Test teams to plan, coordinate, and support system integration and verification activities.
  • Evaluate test results, resolve technical discrepancies, and support corrective actions to ensure compliance with system requirements.
  • Support technical planning, Program Increment (PI) planning, staffing assessments, and engineering execution activities.
  • Prioritize systems engineering activities to meet technical, cost, schedule, and program milestones.
  • Participate in technical reviews, design reviews, customer meetings, and engineering milestone activities.
  • Mentor junior engineers on systems engineering best practices, requirements development, traceability, verification, and technical documentation.
  • Drive continuous improvement of engineering processes, systems engineering rigor, and technical documentation.
  • Collaborate across multidisciplinary engineering teams to support successful program execution.
  • Perform additional duties and responsibilities as assigned.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Bachelor's degree in Aerospace Engineering, Systems Engineering, Electrical Engineering, Mechanical Engineering, Computer Engineering, Physics, or a related technical discipline with 5-8 years of relevant experience, or a Master’s degree in a related technical discipline with 3-6 years of relevant experience, or a PhD in a related technical discipline with 0-3 years of relevant experience.
  • Strong knowledge of systems engineering principles and the systems development lifecycle.
  • Experience developing, managing, and verifying system and subsystem requirements for space vehicles.
  • Knowledge of systems architecture, interface management, systems integration, and configuration management.
  • Experience with spacecraft fault management architecture and implementation
  • Understanding verification, validation, and systems integration processes.
  • Ability to interpret customer requirements, Concept of Operations (CONOPS), and technical specifications to develop engineering solutions.
  • Familiarity with spacecraft mission planning, launch support, and on-orbit operations.
  • Experience supporting spacecraft system integration, mission readiness, and operational activities.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent organizational skills and attention to detail.
  • Effective written, verbal, and interpersonal communication skills.
  • Ability to collaborate effectively within multidisciplinary engineering teams.
  • Experience supporting aerospace, defense, or other highly regulated engineering programs preferred.
  • Proficiency with Microsoft Office Suite (Word, Excel, PowerPoint, Visio)
  • Requirements Management tools (Jama, IBM DOORS, or similar)
  • Model-Based Systems Engineering (MBSE) tools (CATIA Magic/Cameo, MagicDraw, or similar)
  • Systems modeling and simulation tools
  • Collaboration platforms (Confluence, SharePoint, or similar)
  • Configuration management and version control tools (Git, GitLab, Bitbucket, or similar)
  • Issue tracking tools (Jira or similar)
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