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CesiumAstro

Designs satellite communications hardware and software

Senior Radiation Effects Engineer

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

About the Job

Requirements

  • Bachelor of Science degree or higher in Electrical Engineering, Physics, or a similar degree from an accredited university.
  • At least 5 years of space product experience.
  • Direct experience performing many or all of the listed responsibilities.
  • Direct experience working with automotive and high-volume commercial-grade parts in radiation environments.
  • Good understanding of radiation physics relevant to electronic components.
  • Excellent written and spoken communication ability.

Responsibilities

  • Own key aspects of the company’s Radiation Hardness Assurance Plan for low Earth orbit and beyond.
  • Simulate radiation environments for various orbits using tools such as OMERE.
  • Plan and conduct radiation tests on components and company products, including proton, heavy ion, and total dose testing.
  • Predict upset rates by combining environmental simulations with test data.
  • Advise hardware engineers on part selection.
  • Advise software and firmware engineers on best practices for software radiation tolerance, such as error detection and correction and watchdog timers.
  • Perform system-level analysis of radiation risk.
  • Participate in design reviews for hardware, software, and firmware to ensure radiation reliability.
  • Digest requirements from potential customers to shape the product-level radiation roadmap.
  • Keep up with the latest industry practices, standards, and requirements.
  • Help grow the radiation effects team via interviews, training, and mentorship.
  • Advise Business Development on radiation effects for bids and proposals.
  • Present engineering design review materials to customers and the executive team.
  • Participate in proposal-writing efforts.

Desired Qualifications

  • Experience with ray tracing tools such as FASTRAD.
  • Experience with radiation susceptibility of radio-frequency components, including III-V transistors such as gallium arsenide and gallium nitride.
  • Specialization in single-event effects analysis and testing of complex digital devices such as FPGAs, processors, and memories (RAM and non-volatile memory).
  • Working knowledge of Electronic Circuit Theory.
  • Basic programming and scripting, such as Python.
  • Experience managing databases of component test data.

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
Debt Financing
Total funding
$1.6B
Headquarters
Bee Cave, TX
Founded
2017

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