CesiumAstro
268 open jobsGeneral information
CesiumAstro builds infrastructure for space and defense communications. It makes a spacecraft called Element, satellite communication terminals called Skylark, and space systems called Vireo. The company focuses on phased array technology for antennas and communications on satellites. It is based in San Francisco, United States.
Shey Sabripour founded CesiumAstro in 2017. In January 2023, the company bought TXMission, a UK maker of software-defined radios, giving it a base in Europe. CesiumAstro is privately owned. By June 2024, it had raised $156 million in total funding, including a $65 million Series B+ round. That matters: the TXMission deal and the funding show CesiumAstro growing past its early stage into a company with customers on more than one continent.
Currently, there's a total of 353 job openings at CesiumAstro. Over the last 30 days, 308 jobs were added and 68 were removed (job postings usually stay up ~14 days before being removed). CesiumAstro is an H-1B sponsor.1
Hiring activity
New jobs added per week2
View these weekly figures as a table
| Week beginning | New listings |
|---|---|
| July 27, 2026 | 27 |
| August 3, 2026 | 12 |
| August 10, 2026 | 164 |
| August 17, 2026 | 20 |
| August 24, 2026 | 10 |
| August 31, 2026 | 125 |
| September 7, 2026 | 4 |
| September 14, 2026 (in progress) | 11 |
Open jobs
268 open · updated todayPage 8 of 14, most recently added first · Download (CSV)3
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Score your CV for free before you applyVisa sponsorship
Does CesiumAstro sponsor visas? CesiumAstro has no H-1B approvals in the USCIS record for 2021 to 2023, but is a likely employer for applicants who require sponsorship. Currently, they have 1 job certified for sponsorship in 2026, at a median pay of $154,537.4
Based on public USCIS and Department of Labor records. Past filings do not guarantee future sponsorship. Browse all H1B sponsors →
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Common questions
Is CesiumAstro hiring now?
Yes. There are 268 open jobs, with 172 added in the last 30 days. They close fast though, often within 17 days, so don't wait.
Does CesiumAstro sponsor H-1B visas?
Yes. Government records show 1 job certified for FY2026, at a median pay of $154,537.
Interview OS
Company pages built from daily checks of real hiring systems.
Notes & sources
- 1. Company description. Written by InterviewOS from CesiumAstro's public materials and press coverage; facts are checked against the sources below.
- 2. Weekly counts. A count is the number of listings the pipeline saw for the first time in that week. Weeks begin Monday; the onboarding week is excluded from the scale and every average.
- 3. Live counts. Deduplicated live listings observed daily on CesiumAstro's own hiring system; last check September 14, 2026. Stale and syndicated posts on aggregator sites are not counted.
- 4. Federal visa records. USCIS H1B Employer Data Hub and US Department of Labor LCA disclosure files, matched to this company by name.
Sources
cesiumastro.com, checked daily
USCIS H-1B Employer Data Hub
US Department of Labor LCA disclosure files
About the data
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