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Salary
$133k – $160k 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 22, 2026. First seen by Alion on Oct 20, 2026. CesiumAstro scores B 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 our team. In this role you will develop, integrate, and validate systems supporting products and platforms. This role applies established systems engineering principles to develop system solutions, optimize system performance, and resolve complex systems engineering challenges from concept through integration, verification, and production.

Working cross-functionally with systems, software, electrical, mechanical, manufacturing, integration and test, quality, and program teams, the Senior Spacecraft Systems Engineer supports multidisciplinary engineering efforts, contributes to technical investigations, and promotes continuous improvement.

JOB DUTIES AND RESPONSIBILITIES

  • Develop system architectures, requirements, interfaces, technical baselines, and system specifications supporting product development.
  • Conduct requirements analysis, system modeling, trade studies, functional analysis, system decomposition, and systems integration activities.
  • Evaluate system requirements, interface specifications, architecture documentation, engineering analyses, and technical documentation to support implementation.
  • Develop and conduct verification, validation, testing, simulation, integration, and troubleshooting activities.
  • Analyze system performance, test results, simulation data, and engineering observations to resolve technical issues.
  • Recommend engineering changes, system improvements, corrective actions, and design updates that improve system performance, reliability, and operational effectiveness.
  • Collaborate with systems, software, electrical, mechanical, manufacturing, integration and test, quality, and program teams throughout product development.
  • Prepare requirements documentation, interface control documentation, verification reports, engineering reports, engineering change documentation, and technical recommendations.
  • Participate in design reviews, technical investigations, customer support activities, system integration, and verification initiatives.
  • Evaluate systems engineering methods, requirements management processes, modeling techniques, and development activities to identify improvement opportunities.
  • Validate compliance with engineering standards, company procedures, customer requirements, and systems engineering best practices.
  • Contribute to continuous improvement initiatives that strengthen system performance, requirements quality, technical accuracy, engineering efficiency, and operational effectiveness.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Bachelor's degree in systems engineering, aerospace engineering, electrical engineering, computer engineering, or a related engineering field with 5-8 years of related experience, Master's degree with 3-6 years of related experience, or PhD with 0-3 years of related experience in systems engineering, system architecture, requirements management, configuration management, systems integration, or a related discipline.
  • Strong knowledge of systems engineering principles, system architecture, requirements development, systems integration, and technical baseline management.
  • Experience with systems modeling, trade studies, functional analysis, engineering analysis tools, and technical documentation.
  • Knowledge of requirements management, interface development, verification methodologies, configuration management, product lifecycle processes, and technical risk assessment.
  • Understanding of systems engineering processes, engineering documentation, technical standards, model-based systems engineering, and requirements traceability.
  • Proficiency in multidisciplinary engineering collaboration, modeling and simulation, system verification, performance analysis, and product development.
  • Proficiency with Microsoft Office Suite including Outlook, Word, Excel, PowerPoint, and Teams.
  • Engineering analysis and modeling tools, e.g. MATLAB, Simulink, STK, Python, or equivalent applications.
  • Engineering documentation, requirements management, and collaboration tools, e.g. DOORS, Jira, Confluence, or equivalent applications.
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