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CesiumAstro

Designs satellite communications hardware and software

Staff Communication Systems Modeling & Simulation

Telecommunications EngineeringConfirmed live in the last 24 hours
Full-timeAustin, TX, USAIn-person

About the Job

Requirements

  • A bachelor's degree in systems engineering, aerospace engineering, electrical engineering, computer engineering, or a related engineering field with 8–12 years of related experience; a master's degree with 6–8 years of related experience; or a PhD with 3–5 years of related experience in systems engineering, system architecture, requirements management, configuration management, systems integration, or a related discipline.
  • Advanced knowledge of communications systems, systems engineering principles, system architecture, requirements development, and interface management.
  • Proficiency in systems modeling, link analysis, performance evaluation, simulation tools, trade studies, and engineering analysis methods.
  • In-depth knowledge of digital communications, radio frequency fundamentals, networking concepts, signal processing, interface development, interoperability, and system integration.
  • Understanding of systems engineering processes, verification methodologies, engineering documentation, requirements management, technical standards, and model validation.
  • Proficiency in modeling and simulation, product development, configuration management, multidisciplinary engineering collaboration, and system performance optimization.
  • Proficiency with Microsoft Office Suite, including Outlook, Word, Excel, PowerPoint, and Teams.
  • Experience with engineering analysis and modeling tools such as MATLAB, Simulink, STK, Python, or equivalent applications.
  • Experience with engineering documentation, requirements management, and collaboration tools such as DOORS, Jira, Confluence, or equivalent applications.

Responsibilities

  • Lead the design and development of communications system architectures, interfaces, subsystems, and performance models supporting product development.
  • Guide system modeling, link analysis, performance evaluation, trade studies, simulation, and system integration across multiple development programs.
  • Develop communications system architectures and technical solutions that satisfy product, customer, performance, interoperability, and system requirements.
  • Use a digital modeling and simulation ecosystem to model communication system architecture in support of architecture trade studies, new business efforts, and requirements development.
  • Lead efforts to establish streamlined, repeatable modeling and simulation processes and identify opportunities for workflow automation and reuse across programs and product lines.
  • Conduct verification, validation, testing, simulation, integration, and troubleshooting activities across multiple development programs.
  • Resolve complex communications systems and system integration issues through analysis of simulation results, system performance data, test results, and engineering observations.
  • Guide implementation of engineering changes, system improvements, corrective actions, and design updates that improve system performance, reliability, interoperability, and operational effectiveness.
  • Lead collaboration with systems, software, radio frequency, electrical, mechanical, integration and test, quality, and program teams throughout product development.
  • Prepare technical documentation, interface control documentation, verification reports, engineering reports, engineering change documentation, and technical recommendations.
  • Lead design reviews, technical investigations, customer technical discussions, system integration, and verification activities.
  • Evaluate communications systems engineering methods, modeling practices, requirements management processes, and development activities to identify improvement opportunities.
  • Promote consistent application of engineering standards, company procedures, customer requirements, and systems engineering best practices.
  • Guide continuous improvement initiatives that strengthen system performance, requirements quality, modeling accuracy, engineering efficiency, and technical execution.

About the Company

CesiumAstro

Designs satellite communications hardware and software

CesiumAstro builds end-to-end space and airborne communications systems, combining hardware and software to connect satellites, UAVs, and ground stations. Its products include active phased array antennas, software-defined radios, and complete RF payloads that enable electronically steered links for inter-satellite communication, high-rate downlinks, lunar communications, and 5G/NTN networks. The company ships plug-and-play, commercially manufactured, full-stack systems designed to be flexible and cost-efficient, rather than bespoke one-off solutions. Its goal is to make space-based connectivity more accessible and adaptable across space, air, and ground networks for both government and commercial customers.

Company size
501-1,000
Company stage
Series D
Total funding
$1.6B
Headquarters
Bee Cave, TX
Founded
2017

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