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Electronics Lab Technician III RF

CesiumAstro

Job Location:

Westminster, CA - USA

Monthly Salary: $ 34 - 40

Posted: 23 May 2026 (30+ days ago)

Application Deadline: 15 September 2026

Vacancies: 1 Vacancy

Job Summary

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.

AtCesiumAstro 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 looking to add an Electronics Lab Technician III to our team. If you are excited about working in a startup environment have a strong work ethic and are passionate about cutting-edge electronics we would like to hear from you.

In this position you will work closely with Cesium engineers to create Antenna & RF test setups execute test plans troubleshoot complex RF systems and produce timely reliable test results. You will have the opportunity to use and maintain state-of-the-art electronics lab instrumentation such as anechoic chambers spectrum analyzers VNAs signal generators oscilloscopes automated power supplies/loads and more. You will also be expected to identify opportunities for process improvements and help develop efficient repeatable test methodologies.

Many of our products include active phased arrays (a.k.a. active electronically scanned arrays or AESAs). These are antenna products with active RF circuitry integrated with the antenna. This adds complexity to the test architecture including power digital control and thermal effects. As such direct experience with phased array (or AESA) testing is strongly preferred.

Core day-to-day activities will include collaborating with engineers to test troubleshoot and characterize complex electronics and RF circuitry from component level to system level. Candidates should be comfortable interpreting drawings diagrams schematics and test procedures while also contributing feedback to improve test execution and documentation quality.

As a small company the Cesium team wears many hats. Candidates should be comfortable with a dynamic workflow that may involve multitasking between test setup creation test execution equipment maintenance documentation lab organization and cross-functional support activities.

JOB DUTIES AND RESPONSIBILITIES

Execute RF and antenna test plans and provide concise accurate and timely reporting of findings
Organize maintain and improve antenna testing facilities equipment and lab resources
Create and Own the setup troubleshooting and characterization of sensitive electronics including QFNs chip-scale ICs RF cables and 0201 passive components
Build maintain and troubleshoot complex RF test setups consisting of instrumentation cabling switching and devices under test
Create and provide feedback on detailed documentation with a high standard of quality and attention to detail
Assist in developing standardized test procedures and improving lab efficiency and repeatability
Collaborate with engineering teams to diagnose and resolve RF power thermal and digital integration issues
Support calibration maintenance and verification of lab instrumentation and equipment

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

Minimum of 4 years of directly related experience as an Engineering Technician or RF Technician
Experience working with active electronics and RF systems
Hands-on experience with lab instruments such as spectrum analyzers VNAs RF signal generators oscilloscopes DMMs and power meters
Experience troubleshooting RF systems and interpreting measurement data with minimal supervision
Familiarity with phased array or AESA testing preferred
Strong problem-solving skills and ability to troubleshoot complex RF systems independently
Strong organization skills and ability to manage multiple priorities in a fast-paced environment
Comfortable with collaboration tools such as MS Teams SharePoint Confluence and Jira
Ability to work well under deadlines and adapt to changing priorities
Strong digital written and verbal communication skills
Ability to read and interpret schematics wiring diagrams and engineering documentation

$34.39 - $40.64 an hour

CesiumAstro considers several factors when extending an offer including but not limited to the role and associated responsibilities a candidates 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 torace 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.

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

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