Test Technician II - Antenna
This posting asks for U.S. citizenship.
About the role
**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 (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
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.
The Skylark product line is focused on the rapid design, build, and test of cutting-edge active phased array antennas (AESA) for terrestrial and airborne applications. Current programs span high-power, large-scale ground terminals for missile defense to commercial airline and helicopter connectivity solutions.
We are looking to add a Test Technician II - Antennato our team. If you are excited about working in a startup environment, have a strong work ethic, and are passionate about cutting-edge antenna and aerospace technologies, we would like to hear from you.
In this position, you will work closely with CesiumAstro engineers to support antenna range operations, build and maintain antenna test setups, execute antenna measurement campaigns, and produce timely, reliable test results. You will have the opportunity to work with state-of-the-art antenna test facilities and instrumentation, including anechoic chambers, near-field and boresight antenna ranges, positioners, spectrum analyzers, VNAs, signal generators, automated power supplies/loads, and data acquisition systems.
This role is heavily focused on antenna range execution, test setup integration, facility readiness, and measurement quality. Candidates should be comfortable working hands-on with RF cabling, mechanical fixtures, positioning systems, test assets, and sensitive hardware while supporting both engineering development and production-related testing activities.
Many of our products include active phased arrays (a.k.a. active electronically scanned arrays, or AESAs). These systems integrate RF electronics directly into the antenna architecture, creating additional complexity involving power, digital control, thermal performance, and calibration. Experience with phased array antenna testing, antenna measurements, or automated range systems is preferred.
Core day-to-day activities will include supporting engineers with antenna test execution, troubleshooting test setups, configuring instrumentation, coordinating range operations, and maintaining high-quality test environments. Candidates should be comfortable working from drawings, diagrams, schematics, mechanical layouts, and test procedures while maintaining strong attention to detail and organization.
As a small company, the Cesium team “wears many hats.” Candidates should be comfortable with a varied workflow that may involve multitasking between range setup, test execution, equipment maintenance, lab organization, inventory management, and other related activities.
JOB DUTIES AND RESPONSIBILITIES
- Execute antenna and antenna range test plans and provide concise, timely reporting of findings
- Configure, operate, and maintain antenna range facilities, including anechoic chambers, positioners, RF cabling, and support equipment
- Support setup and alignment of antennas, fixtures, instrumentation, and devices under test for near-field and far-field measurements
- Assist with antenna pattern, gain, polarization, and RF performance measurements
- Maintain clean, organized, and repeatable test setups consisting of instrumentation, switching, cabling, and mechanical integration hardware
- Troubleshoot test setup, cabling, instrumentation, and range configuration issues with guidance from engineering staff
- Support calibration and verification activities for antenna range systems and RF instrumentation
- Organize and maintain antenna testing facilities, equipment, inventory, and lab resources
- Execute and provide feedback on detailed test documentation with strong attention to quality and accuracy
- Support continuous improvement efforts for range efficiency, setup repeatability, and test execution processes
JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
- Minimum of 2 years of directly related experience as an Antenna Technician, Test Technician, Engineering Technician, or similar technical role
- Experience working with RF systems, antenna systems, or active electronics
- Hands-on experience with lab and test equipment such as VNAs, spectrum analyzers, signal generators, DMMs, and power meters preferred
- Familiarity with antenna measurement fundamentals, RF test methods, and antenna range operations preferred
- Experience working with mechanical fixtures, RF cabling, and instrumentation integration
- Strong problem-solving skills and ability to troubleshoot with direction
- Strong organization skills and attention to detail
- Comfortable with collaboration tools such as MS Teams and SharePoint
- Ability to work well under deadlines in a fast-paced environment
- Strong digital, written, and verbal communication skills
- Ability to read and interpret schematics, engineering drawings, diagrams, and test procedures
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. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.
CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.
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 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 8 questions.
- 1.As a result of the work performed by CesiumAstro, all eligible candidates must be a U.S. Person or able to obtain an export license. U.S. Persons include U.S. Citizens, Permanent Residents, conditional residents, asylees, and refugees. AreYes or no
- 2.Do you now or will you in the future require sponsorship for employment visa status? Please select "Yes" if you will require the Company to commence ("sponsor") an immigration or work permit case in order to employ you, either now or at somYes or no
- 3.Do you have a family member that is currently employed with CesiumAstro?Yes or no
- 4.If yes, please specify the individual(s) and the department or location in which they work:Short answer · optional
- 5.Please indicate the highest level of education you have completed.Pick one (7 options)
- 6.Please select which of the following security clearances and/or access you currently hold.Pick any (8 options)
- 7.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.
- 8.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.
Similar open roles

Manager, Information Security Management (opens the job details)
SES · Software & IT · Bucharest, Romania· todayDetails

Dream Chaser Flight Controller (Systems Engineer II) (opens the job details)
Sierra Space · Launch & Ops · Louisville, CO, United States· 4mo agoDetails
$94,090–$129,394.75/yr
Corporate Communications Manager (opens the job details)
Virgin Galactic · Programs & Business · Tustin, California, United States· 1d agoDetails
$81,650–$124,600/yr

Communications Manager (opens the job details)
Relativity Space · Programs & Business · Long Beach, California, United States· 1w agoDetails
$89,000–$133,000/yr
Experienced in Manufacturing & Technicians?
Space employers come to us looking for a particular skill, location or credential. Leave your details one time, at no cost, and we put you forward when a role matches, never without your yes.
CesiumAstro openings, sent to your inbox
Each week we send what CesiumAstro posted since the last email, with comparable openings at other space companies. No cost, and you can stop it with one click.
Hiring for CesiumAstro? Feature this role to get a marked Featured slot above the lists and the lead place in the weekly job email for 30 days. Pricing:$99 for a single role, or $299 to cover every role you have open. To see who else is hiring your disciplines and at what pay, read the monthly space hiring brief.