Principal RF Engineer I

  • Full Time
  • USA
  • Posted 1 month ago
  • Salary: $130,000 to $155,000 per year
  • the applicant must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Company Details



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., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

CesiumAstro is a rapidly growing space technology startup in Austin, Texas, developing out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. Our approach is unique, and our team is changing the world of space communications. Learn more about our company at

We are looking to add a Principal RF Engineer I to our team. The ideal candidate has extensive experience in system-level RF electronics design. If you are great at what you do, 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.


Successful candidates will require at a minimum:

  • Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering (EE) from an accredited university or institution.
  • Minimum of 9 years of experience with a Bachelor’s degree or 7 years of experience with a Master’s degree
  • Industry or university research experience in design and analysis of RF electronics and systems is required
  • Expert-level proficiency in professional simulation tools such as CST and ADS, as well as EDA tools such Altium.
  • Extensive hands-on experience with lab instruments such as vector network analyzers, spectrum analyzers, signal generators, and oscilloscopes.
  • Excellent written and verbal communication skills.

Preferred experience includes:

  • Aerospace electronics design, development, and qualification.
  • Worst-case circuit analysis, and failure method and criticality analyses
  • Antenna design
  • EMI/EMC design and mitigation techniques.

The salary range for this role is $130,000 to $155,000; however, 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. We also provide generous benefits and stock option packages to all our employees.

CesiumAstro is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

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Tagged as: ADS, altium, emi/emc, CST, antenna design, eda tools

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