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Systems & Test

Communications Test Engineer I

CesiumAstro logoCesiumAstro~$147k–$202k/yrtypicalMilton Keynes, United KingdomFull-timePosted 1y+ ago

About the role

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.

In this position, you will own integration and verification of space-communication systems involving digital and analogue hardware. Key projects will include developing and managing setups and test software for modem and link verification, both at the baseband and the RF level. The successful candidate is meticulous, has an end-to-end system mindset, is exceptionally strong in both digital engineering and software development, has a good understanding of RF, and enjoys cross-team interaction.

JOB DUTIES AND RESPONSIBILITIES

  • Define, design, implement, and maintain measurement/test solutions for link/modem validation
  • Define and analyze calibration and metrology aspects (statistical error analysis, confidence levels, error budgets)
  • Develop modular, reusable software in Python (or similar languages) to be implemented in a variety of setups
  • Analyze and troubleshoot link-performance issues
  • Interact with DSP/HW/SW team to improve system performance

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Degree in Electrical/Electronic Engineering, Computer Engineering, Computer Science, or Physics
  • 2+ years of experience with RF measurement and instrumentation
  • 2+ years of programming experience using Python

PREFERRED EXPERIENCE

  • Hands on Digital & RF measurement experience (analyzers, vector signal generators, power sensors, network analyzers)
  • Hands on link-performance measurement experience (link/protocol testers, channel emulators)
  • Physical-layer satellite modem algorithms/standards (DVB-S2, CCSDS)
  • Experience in collaborative software design (GIT, code reviews)
  • Experience in test automation
  • Linux and Windows experience
  • Statistical analysis and metrology

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills.

Please be aware that many roles will be subject to both security and export control restrictions. These restrictions mean that factors including new starter’s nationality, any previous or dual nationalities held, place of birth and country of residence may limit those roles that you can perform for the organisation.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members not through our approved vendor list or Talent Acquisition will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

Copied from the listing CesiumAstro published, verified 30 Oct 2026.

The application

Your details and CV, then 4 questions.

Have readyCVLinkedIn (optional)
  1. 1.
    By submitting your application, you hereby certify that the facts set forth in the above employment application are true and complete to the best of your knowledge. I certify that the information on this application is accurate and completePick any: Yes, I have read the Applicant Authorization and Certification and I acknowledge and agree with the terms stated above.
  2. 2.
    I have applied for employment with CesiumAstro Inc. (the “Company”), including any subsidiary entities. In consideration of the Company's accepting and evaluating my application for employment, I hereby agree that I will comply with and bePick any: I agree with the above obligations related to protection of Proprietary Information.
  3. 3.
    By submitting your application you hereby certify that the facts set forth in the above employment application are true and complete to the best of your knowledge. I certify that the information on this application is accurate and completePick any: Yes, I have read the Applicant Authorization and Certification and I acknowledge and agree with the terms stated above.
  4. 4.
    I have applied for employment with CesiumAstro, Inc. (the “Company”). In consideration of the Company's accepting and evaluating my application for employment, I hereby agree that I will comply with and be legally bound by the following terPick any: I agree with the above obligations related to protection of Proprietary Information.

Taken from the application form CesiumAstro runs, verified 30 Oct 2026.

How to apply to CesiumAstro: the questions its forms ask across its open roles.

About CesiumAstro

Software-defined radios, phased-array payloads and satcom terminals for space and defense.

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