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RF Systems Architect

CesiumAstro

Job Location:

Austin, TX - USA

Monthly Salary: Not provided by the employer

Posted: 15 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.

CesiumAstro is seekingan RFSystems Architect to lead the definition and development of next-generation ISR (Intelligence Surveillance and Reconnaissance) RF payloads with emphasis on radar systems RF sensing and wideband signal collection.

This role is highly strategic and technical focused on end-to-end RF payload architecturefrom antenna and front-end design through system-level performance signal processing considerations and mission integration. The ideal candidate demonstrates deep experience in phased array systems wideband RF architectures and space-based sensing payloads.

KEY RESPONSIBILITIES

Define and lead system architecture for advanced ISR RF payloads including radar and RF sensing systems for space and airborne platforms.
Translate mission objectives into end-to-end RF payload architectures including antenna systems RF front-end digitization and downstream processing.
Drive architectural trade studies across performance SWaP scalability and mission constraints.
Lead concept development for wideband multi-beam and multi-function RF payloads including electronically steered arrays and digital beamforming systems.
Partner with business development to shape technical strategy support proposals and secure new program opportunities.
Serve as a Subject Matter Expert (SME) in RF payload architecture supporting internal reviews and customer engagements.
Guide cross-functional teams through architecture definition prototyping and system validation.
Stay at the forefront of emerging ISR radar and RF sensing technologies and incorporate advancements into product roadmaps.
Mentor engineers and establish best practices in RF system architecture and payload development.
Communicate complex technical concepts architectures and trade-offs to internal stakeholders and external customers.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

Masters degree in Electrical Engineering Physics or a related technical discipline (advanced degree preferred).
15 years of professional experience in RF engineering radar systems or RF sensing technologies.
Demonstrated expertise in RF system design fundamentals including link budgets noise analysis and RF propagation.
Strong technical background in phased array antennas beamforming techniques and wideband RF systems.
Experience working with RF hardware components such as antennas LNAs mixers ADCs/DACs and frequency conversion chains.
Proficiency with RF and electromagnetic simulation tools (e.g. MATLAB ADS HFSS CST or similar).
Solid understanding of radar principles and/or signal processing techniques relevant to RF sensing applications.
Experience in aerospace defense or space-based systems environments.
Demonstrated technical leadership experience or progression into senior/architect-level roles.
Strong analytical and problem-solving skills in complex engineering environments.
Effective written and verbal communication skills for technical collaboration.

PREFERRED EXPERIENCE

Experience contributing to or leading successful program captures and technical strategy.
Demonstrated innovation including patents or novel RF/antenna system developments.
Experience in fast-paced startup or advanced development environments.

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:

Staff IC

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