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Key details
Function
Engineering
Workplace
On-site
Location
GB
Job Description
At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.
We are actively seeking passionate, collaborative, energetic, and forward-thinking individual to join our team as a Principal RF Engineer I. The ideal candidate has extensive experience in board-level and system-level RF electronics design. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you.
In this position, you will be responsible for RF circuits, modules, and systems through all phases of the development process. The ideal candidate will be proficient in board-level schematic design and PCB layout of RF circuits, system-level communications concepts such as link budgets and modulation schemes, and end-to-end RF product development. The work will include many aspects of phased array communication systems, including RF front ends, frequency converters and synthesizers, filters, beamformers, power dividers, and phased array antennas.
As a principal hardware team member, you will be responsible for RF system and hardware designs from initial concept through requirements definition, architecture definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Hardware design tasks will include block diagrams, detailed schematics, PCB layout and routing, simulations, and test design. Principal Engineers also serve as technical and professional mentors in their field and may be given the opportunity to lead company programs.
The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.
Audit details(provenance, verification trail, raw fields)
Core fields
Posting ID
cesiumastro:d5348ac1-477a-47c6-aad0-1c9a42c6402aTitle
Principal RF Engineer I
Function
Engineering
Location
Cambridge, United Kingdom
Workplace mode
in_person
Posted at
2026-07-21 14:27:38Z
Compensation
undisclosed
Provenance
First seen (our tracker)
2026-07-22 05:10:33Z
Last seen
2026-07-25 05:05:57Z
Last updated
2026-07-25 05:05:57Z
Removed at
still open
Days open
Open for 4 days (and counting)
ATS adapter
lever
ATS slug
CesiumAstroVerification trail
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