El Segundo, California, United States · On-site
$118k–$142k/yr
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 (protect…
Skills: Mechanical design, CAD, FEA, Electronics packaging, Thermal architecture
El Segundo, California, United States · On-site
$48/hr–$58/hr
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 (protect…
Skills: SolidWorks, CAD design, Drafting, GD&T, Mechanical design
El Segundo, California, United States · On-site
$140k–$168k/yr
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 (protect…
Skills: RF electronics design, Board-level schematic design, PCB layout, Link budgets, Modulation schemes
El Segundo, California, United States · On-site
$160k–$210k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Machine learning, Deep learning, Computer vision, Synthetic aperture radar, Geospatial exploitation
El Segundo, California, United States · On-site
$160k–$210k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Deep learning, Computer vision, Synthetic aperture radar, Geospatial exploitation, Python
El Segundo, California, United States · On-site
$180k–$250k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Python, C++, Linux, Geospatial Analytics, SAR Imagery
El Segundo, California, United States · On-site
$200k–$270k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Synthetic Aperture Radar, Program management, Automated target recognition, Radar phenomenology, Machine learning
El Segundo, California, United States · On-site
$150k–$200k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Python, Linux, Geospatial Data Processing, SAR Imagery, Database Architecture
El Segundo, California, United States · On-site
$120k–$170k/yr
Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new front…
Skills: Deep learning, Computer vision, Synthetic aperture radar, Geospatial exploitation, Python
El Segundo, California, United States · On-site
$30/hr–$46/hr
About Varda Low Earth orbit is open for business. Varda is accelerating the development of commercial space infrastructure, from in-orbit pharmaceutical processing to reliable and economical reentry capsules. Varda’s W-S…
Skills: Harness manufacturing, Cable assembly, Crimping, Soldering, Connector assembly
El Segundo, California, United States · On-site
$173k–$237k/yr
About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…
Skills: Nuclear engineering, Reactor design, Physics, Engineering physics, Team management
El Segundo, California, United States · Hybrid
$150k–$190k/yr
Title: Principal Software Engineer Belong. Connect. Grow. with KBR! KBR is seeking an experienced Principal Software Engineer to support the MSEIT contract at Space Systems Command (SSC). This role combines hands-on soft…
Skills: Software development, Technical leadership, System architecture, Full stack development, Angular
El Segundo, California, United States · Hybrid
$126k–$170k/yr
Title: DevSecOps Engineer Belong. Connect. Grow. with KBR! KBR is seeking an experienced DevSecOps Engineer to support the MSEIT contract at Space Systems Command (SSC). This role focuses on designing, implementing, and …
Skills: DevSecOps, CI/CD, Kubernetes, Git, Helm
El Segundo, California, United States · On-site
$135k–$169k/yr
Title: Systems Integration and Test Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence an…
Skills: Systems engineering, Integration and test, SATCOM, Spacecraft hardware, Payload hardware
El Segundo, California, United States · On-site
$151k–$185k/yr
Company Description CREATIVITY IS OUR SUPERPOWER. It’s our heritage and it’s also our future. Because we don’t just make toys. We create innovative products and experiences that inspire fans, entertain audiences and deve…
Skills: Accounting, Revenue recognition, US GAAP, Financial reporting, ASC 606
El Segundo, California, United States · On-site
$140k–$170k/yr
About Varda Low Earth orbit is open for business. Varda is accelerating the development of commercial space infrastructure, from in-orbit pharmaceutical processing to reliable and economical reentry capsules. Varda’s W-S…
Skills: Human Resources, HRBP, People Operations, Organizational design, Workforce planning
El Segundo, California, United States · On-site
SAIC is seeking an experienced Space Systems Engineer to lead a complex systems acquisition within the Space Combat Power systems portfolio. This role requires extensive expertise in government weapon systems engineering…
Skills: Systems Engineering, Strategic Planning, Program Integration, Risk Mitigation, Technical Oversight
El Segundo, California, United States · On-site
About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we con…
Skills: Product marketing, Go-to-market strategy, Product positioning, Messaging, Cross-functional leadership
El Segundo, California, United States · On-site
$85k–$127k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Agile Coaching, Scrum Framework, Kanban, Conflict Resolution, Product Backlog Refinement
El Segundo, California, United States · On-site
$107k–$147k/yr
Title: Enterprise Test & Evaluation Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence an…
Skills: Test and evaluation, Systems engineering, SATCOM, Requirement verification, Test methodology
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You will be responsible for the mechanical design of phased array antennas, subsystems, and interfaces throughout the entire development lifecycle. This includes requirements definition, architectural trades, manufacturing, testing, and providing in-orbit support.
Candidates must hold a Bachelor of Science in Mechanical or Aerospace Engineering and have at least 4 years of experience in space antenna and payload mechanical engineering. Proficiency in CAD tools, FEA, and aerospace manufacturing processes is required.
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 Senior Mechanical Engineer to our Mechanical Engineering team. If you enjoy working in a startup environment and are passionate about developing space hardware for leading-edge communications satellites, we would like to hear from you.
In this position, you will be responsible for mechanical design aspects of Cesium phased array antennas, subsystems, and interfaces through all phases of the development process. The ideal candidate will be versatile and proficient in mechanical analysis, electronics packaging, computer-aided design (CAD), mechanical interfaces, thermal architecture, spacecraft propulsion, deployable and actuated structures, and environmental qualification of spacecraft antennas and payloads. You will be responsible for mechanical designs from concept through space flight including requirements definition, architecture trades and block diagrams, analysis, manufacturing, testing, qualification, and in-orbit support.
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.
\nJOB REQUIREMENTS AND MINIMUM QUALIFICATIONSCesiumAstro 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.
Connect. Detect. Defend.
CesiumAstro builds and delivers space communications systems—at scale. We design, engineer, and manufacture software-defined radios, phased array payloads, and fully integrated satellites that enable real-time, multi-beam, multi-user connectivity across space-based and airborne networks. Our systems are built for mission-critical applications and designed to adapt on orbit. As a vertically integrated manufacturer, CesiumAstro brings RF, digital processing, and satellite integration together under one roof, enabling rapid production, consistent performance, and repeatable delivery. Headquartered in Austin, Texas, with operations in Colorado, California, the United Kingdom, Germany, and Japan, CesiumAstro is building the communications infrastructure modern missions depend on. We’re hiring. Explore open roles at CesiumAstro.com/careers.
Offices: 13215 Bee Cave Parkway, Suite A-300, Austin, Texas 78738, US · 20 Oskar-von-Miller-Ring, Munich, 80333, DE · 10355 Westmoor Drive, Suite 100, Westminster, Colorado 80021, US · 101 Continental Boulevard, Suite 400, El Segundo, California 90245, US · 13418 Galleria Circle, Suite H-100, Austin, Texas 78738, US
Based on 1062 listings with disclosed salaries, most technology jobs in El Segundo, CA pay between $95k–$217k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 1,200 open technology positions in El Segundo, CA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include The Aerospace Corporation, Boeing, RTX, CHAOS Industries, Varda Space Industries, among others. Browse the listings above to see every active employer.
Yes — 177 of the 1200 open technology positions offer remote or hybrid work (34 remote, 143 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
