Senior Antenna Engineer

Astranis  · San Francisco  · Nov 6, 2026

Astranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. Today Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe – large enterprises, sovereign governments, and the US military. With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts. Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization. Astranis has raised over $1.2 billion from some of the world’s best investors, including Andreessen Horowitz, Baillie Gifford, Blackrock, Fidelity, Franklin Templeton, and Snowpoint, and employs a team of 500 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA. Senior Antenna Engineer

Responsibilities:
• Leverage cutting-edge design tools to realize high-performance communications antenna systems with on-orbit flexibility to meet evolving customer demand.
• Work with vendors to design and procure space-qualified antenna and RF components and validate their performance through clean-room and anechoic chamber testing.
• Co-design antenna systems in conjunction with other technical disciplines including Structural/Thermal and Software-Defined Radio to achieve overall system requirements.
• Work with the sales team to propose novel antenna systems that satisfy customer needs.
• Assist in recruiting, interviewing, and hiring additional teammates to our rapidly-growing team.
Requirements:
• Ability to relocate to San Francisco to work onsite as we design, integrate and test mission critical hardware.
• 5 - 15+ years of experience in relevant industry or academic roles.
• Demonstrated ability to implement high performance antenna systems in research or industry settings.
• Strong ability to collaborate with diverse engineering disciplines to collectively design and build performant RF/antenna systems, including mechanical, thermal, systems and software engineering.
• Strong antenna and microwave engineering fundamentals including theory of impedance matching, filters, combiners, amplifiers, etc.
• Experience measuring components using vector network analyzers and antenna measurement ranges, either anechoic or near field scanners.
• Demonstrated ability to solve engineering challenges in innovative and creative ways.
• Capable of using industry-standard design tools such as CST, HFSS, or TICRA and scripting to solve engineering problems using Matlab or Python.
• Experience with digital beamforming, active feed networks, or reconfigurable antennas
• Understanding of co-site interference and antenna siting optimization
• Experience with link budget and system calculations including EIRP, noise figure, and G/T
• Experience designing waveguide components (orthomode transducers, diplexer, filters, polarizers, etc)
Apply Now
Company
Astranis
Location
San Francisco
Job Type
Full-time
Category
RF / Microwave
Posted
Nov 6, 2026
Source
Original posting ↗
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