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CesiumAstro

Develops phased array communication systems for satellites and aircraft.

aerospacetelecommunications

https://cesiumastro.com ↗ LinkedIn ↗

Company facts

Series C-stage

Founded: 2017
Employees: 400
Headquarters: United States
CEO: Shey Sabripour
Type: Private
Funding: Series C · $270M · 2026
Subsidiaries: TXMission

About

At CesiumAstro, we believe that connectivity should be seamless and reliable, especially in the challenging environments of space and airborne applications. Our company specializes in developing state-of-the-art, software-defined phased array communication payloads designed to revolutionize how information is transmitted and received in these dynamic domains. As a leading provider of advanced connectivity solutions, we engineer and manufacture comprehensive communication modules, payloads, and satellite systems, ensuring high performance across multiple missions. Founded in 2017 and located in Austin, Texas, with additional offices in Broomfield, Colorado, and El Segundo, California, CesiumAstro is committed to driving innovation in space communications technology. We pride ourselves on our engineering expertise and our ability to meet the unique needs of both commercial and defense sectors. Our robust portfolio includes multi-domain solutions that enable flexible, scalable communication pathways, catering to a wide variety of applications from UAV operations to satellite networks. With a strong emphasis on research, development, and customer collaboration, CesiumAstro is pioneering the future of connectivity.

Company facts

Series C-stage

Founded: 2017
Employees: 400
Headquarters: United States
CEO: Shey Sabripour
Type: Private
Funding: Series C · $270M · 2026
Subsidiaries: TXMission

About

At CesiumAstro, we believe that connectivity should be seamless and reliable, especially in the challenging environments of space and airborne applications. Our company specializes in developing state-of-the-art, software-defined phased array communication payloads designed to revolutionize how information is transmitted and received in these dynamic domains. As a leading provider of advanced connectivity solutions, we engineer and manufacture comprehensive communication modules, payloads, and satellite systems, ensuring high performance across multiple missions. Founded in 2017 and located in Austin, Texas, with additional offices in Broomfield, Colorado, and El Segundo, California, CesiumAstro is committed to driving innovation in space communications technology. We pride ourselves on our engineering expertise and our ability to meet the unique needs of both commercial and defense sectors. Our robust portfolio includes multi-domain solutions that enable flexible, scalable communication pathways, catering to a wide variety of applications from UAV operations to satellite networks. With a strong emphasis on research, development, and customer collaboration, CesiumAstro is pioneering the future of connectivity.

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145 jobs

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FPGA Engineer I

NewBe an early applicant On-siteNorth AmericaContract

Entry-level FPGA engineer developing FPGA circuits and systems for satellite and aerospace communication hardware through the full lifecycle: HDL design, verification, test, and deployment. Core tools include Verilog/VHDL, Xilinx Vivado, and Modelsim, with lab instrument work and optional DSP or board-level design.

FPGA Oscilloscope Signal Processing Verilog VHDL

Senior Staff Communication Systems Engineer

NewBe an early applicant On-siteEuropeContractStaff

Lead the design and integration of phased‑array antennas and radio systems for satellites and aerospace platforms, handling requirements, trade studies, and cross‑team coordination while representing CesiumAstro in customer and design reviews.

Manager, CNC Machining

NewBe an early applicant On-siteNorth AmericaContract

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…

Cnc ERP Performance Management SAP

FPGA Engineer II

NewBe an early applicant On-siteAPAC, North AmericaContract

Design, verify, and test FPGA hardware for satellite and aerospace communication systems, handling high‑speed serial interfaces, digital processing cores, and multiple clock domains using Verilog/VHDL, Vivado, and lab instruments.

FPGA Oscilloscope Signal Processing Verilog VHDL

Staff Project Engineer

New On-siteAPAC, North AmericaContractStaff

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…

Senior FPGA Engineer

New On-siteLATAMContractSenior

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…

FPGA Oscilloscope Signal Processing Verilog VHDL

Senior Staff RF Test Engineer

New On-siteLATAMContractStaff

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…

Amplitude Automation C++ EVM MATLAB +2 skills

Staff RF Test Engineer

New On-siteLATAMContractStaff

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…

Amplitude Automation C++ EVM MATLAB +2 skills

Senior Legal Counsel, Commercial

New On-siteNorth AmericaContractSenior

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…

Business Development Go-to-Market Stakeholder Management

Staff Embedded Software Engineer

New On-siteLATAM, North AmericaContractStaff

Staff Embedded Software Engineer at CesiumAstro designing and implementing embedded software for satellite and airborne communication systems using C/C++, real-time OS, and FPGA interfaces.

API Api Design C++ Embedded Software Embedded Systems +3 skills

133K – 161K $

Senior Software Project Engineer

New On-siteNorth AmericaContractSenior

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…

Agile Embedded Software Firmware Jira Program Management

FPGA Verification Engineer II

New On-siteAPAC, North AmericaContract

FPGA Verification Engineer II developing and maintaining FPGA/digital design simulation, verification, and emulation infrastructure using UVMf, SystemVerilog, and Xilinx tools for satellite and aerospace communication systems.

Automation CI/CD C++ FPGA Linux +6 skills

118K – 142K $

Staff FPGA Verification Engineer

New On-siteNorth AmericaContractStaff

Staff FPGA Verification Engineer leading verification, debugging, and qualification of FPGA-based hardware for satellite and aerospace communication systems, using HDL, UVM Framework, and tools like Vivado and QuestaSim.

Agile Embedded Systems Firmware FPGA Git +6 skills

Senior Product Manager - Developer Platforms

New On-siteNorth AmericaFull-timeSenior

Lead the developer experience for CesiumAstro's software-defined radio and space communications development kits—spanning BSPs, firmware tooling, documentation, and source code distribution—bridging hardware, embedded software, and customer enablement.

API Automation CI/CD C++ Developer Experience +9 skills

Senior Flight Software Engineer

New On-siteLATAMContractSenior

Develop satellite flight software and software-in-the-loop tests for spacecraft subsystems (attitude, power, thermal, navigation) using C, C++, Python, and embedded Linux on a small satellite team.

CI/CD C++ Embedded Software Linux Network Security +3 skills

133K – 161K $

Senior Software Engineer - Fullstack

New On-siteNorth AmericaFull-timeSenior

Senior full-stack engineer building user-facing web dashboards and applications for space/airborne communication platforms using JavaScript, TypeScript, and Vue.js, collaborating closely with backend, DevOps, and ML teams.

API DevOps Elasticsearch Infrastructure as Code JavaScript +5 skills

Senior Embedded Software Engineer - SATCOM

New On-siteLATAMContractSenior

Senior Embedded Software Engineer developing Linux and Yocto-based embedded applications, device drivers, and kernel modifications for satellite communication systems and active phased array antennas.

CI/CD C++ Embedded Linux Embedded Software Embedded Systems +2 skills

133K – 161K $

Senior Embedded Software Engineer - Spacecraft

New On-siteLATAMContractSenior

Senior Flight Software Engineer responsible for satellite flight software and software-in-the-loop testing across all development stages, including architecture, implementation, and validation. Core technologies: C, C++, Python, Linux-based satellite OS, embedded systems, TCP/IP/UDP, and SITL/HITL frameworks.

CI/CD C++ Embedded Software Linux Network Security +3 skills

133K – 161K $

Staff Flight Software Engineer

New On-siteLATAMContractStaff

Design and implement low-level and high-level software for satellite communication systems—flight software, mission data systems, and ground operations—primarily in C/C++, through all phases from concept to in-orbit support.

C++ Microcontrollers

158K – 189K $

Senior Staff Embedded Software Engineer - SATCOM

New On-siteLATAMContractStaff

Senior Staff Embedded Software Engineer developing low-level and high-level software for satellite and airborne communication systems, including Linux-based single-board computers and high-reliability microcontroller systems using C/C++ and real-time operating systems.

API Api Design C++ Embedded Software Embedded Systems +3 skills

184K – 225K $