Communication Systems Architect

Austin, TXProducts – Products /Full-time /On-sitePlease 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.We are looking for an experienced and driven Communication Systems Architect to lead the definition and execution of advanced satellite communication systems. This role requires deep technical expertise, strong leadership, and a broad understanding of the full space product lifecycle, from concept through deployment. As the technical point of contact to our customers and the engineering lead for internal execution, you will be critical to ensuring our products meet mission, technical, and business goals.JOB DUTIES AND RESPONSIBILITIESLead the definition of communications architectures including RF front ends, digital processing chains, beamforming arrays, channelizers, and modems.Drive architectural decisions across hardware, firmware, and software boundaries.Provide end-to-end technical leadership across the full product lifecycle from requirements definition, design, and development to integration, test, qualification, and delivery of space-qualified hardware.Act as the primary technical point of contact with customers. Translate mission needs into engineering requirements, lead technical reviews, and ensure alignment across program phases.Own technical execution for programs, guiding and coordinating engineering activities across electrical, RF, mechanical, firmware, and software domains.Partner with the business development team to shape technical solutions, write proposal content, and engage in customer capture activities.Define system-level requirements and preliminary designs to support new opportunities. Assist with scoping SOWs and shaping architectures during early-phase engagements.Lead architectural and component-level trade studies to balance performance, cost, risk, and schedule.Provide leadership and guidance to engineering teams, ensuring technical integrity and execution excellence.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONSBachelor's degree in Electrical Engineering.15+ years of experience developing advanced communications systems in satellite or aerospace.Broad understanding of full-lifecycle space product development, including design, integration, qualification, and mission operations.Proven experience as a technical execution lead, responsible for driving system performance and engineering progress across disciplines.Deep background in digital communications, RF architecture, signal processing, and FPGA-based systems.Hands-on experience with SDRs, high-speed digital systems, and RF designs.Experience with phased array antennas and digital beamforming.Understanding of satellite payload constraints including power, thermal, and volume budgets.Experience with modeling and simulation tools such as MATLAB, STK, ADS, or equivalent.Comfortable working directly with customers, leading technical conversations, reviews, and shaping architectural solutions.Familiarity with space environmental and radiation effects, and space-grade design practices.Must be a U.S. Citizen with an active TS/SCI security clearance.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.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.