Jobs and Careers
CE
Principal Communication Systems Engineer I - Networking
CesiumAstroUnited Statesfull_timeVerifiedPosted 31 Mar 2026
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.
We are looking to add a Principal Communication Systems Engineer I with a focus on network architecture to our team. If you 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.
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.
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 to add a Principal Communication Systems Engineer I with a focus on network architecture to our team. If you 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.
JOB DUTIES AND RESPONSIBILITIES
- Collaborate with customers and internal stakeholders to define networking architectures and operational concepts for space-based communication systems.
- Develop hardware and software requirements for network elements such as routers and switches.
JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
- 10+ years of systems engineering experience, at least 4 years in space and/or ground-based network architecture.
- Experience with multiple access and wireless communications systems.
- Experience in packet network and router/switch architecture, analysis, and modeling.
- Proficiency in developing hardware/software architectures for link, network, and/or transport layer processing chains.
- Experience with networking protocols and approaches, including IPv4/v6, MPLS, Ethernet, SNMP, NETCONF/YANG, gNMI, QoS and queue management.
- Proficiency in communications subsystem trades and analysis.
- Proficiency in requirements allocation and verification for communications subsystems.
- Proficiency in defining interfaces between communications subsystems, both physical and messaging layer.
- Experience with MBSE concepts, standards, and tools (e.g. Cameo/SysML) for developing and communicating architecture.
- Experience with design for testability, test plan development, laboratory testing of network devices using commercial test equipment (e.g. Keysight/Ixia), integration/testing with other subsystems.
- Ability to work with interdisciplinary team of hardware, firmware, and software engineers to communicate and drive architecture implementation.
PREFERRED EXPERIENCE
- Experience using heterogeneous network modeling and emulation tools such as CORE, EMANE.
- Experience with Software Defined Networks (SDNs).
- Proficiency with algorithms, and ability to review and apply algorithms literature on graphs, network flow optimization, task and resource scheduling, dynamic topology.
- Familiarity with hardware/firmware design issues, including clocks, configurable logic, storage elements, power/reset sequencing, data correction.
- Experience with cyber architecture for space and ground applications, including NIST RMF controls, RoT, ZTA, KMI/COMSEC/TRANSEC, red-black boundary management.
- Familiarity with antenna subsystems and parameters.
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.
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s