Satellite Communications Engineer

4 weeks ago


San Francisco, California, United States Astranis Full time

Astranis is a pioneering company bridging the digital divide by connecting the world through innovative satellite technology. We're on a mission to bring the internet to the four billion people worldwide who currently lack access.


As a team, we've made significant strides in launching satellites into orbit, signing commercial deals worth over $1 billion in revenue, raising substantial funding, and recruiting a world-class team of engineers. Our San Francisco office, once used to build ships during the World Wars, is now our hub for innovation and collaboration.


Our satellites, operating from geostationary orbit, weigh only 400 kg and utilize a proprietary software-defined radio payload. Each satellite can connect over two million people, and we're excited about the impact we'll soon have in the Philippines, Peru, Mexico, and more.


Backed by substantial funding and a passionate team, we offer a rewarding work environment where you'll learn and make a significant impact, no matter where you are in your career.


This Associate Engineer role is an exciting opportunity to work on challenging projects and contribute to the development of our satellite technology. As an Associate, you'll have the chance to design signal processing for custom software-defined radio hardware, work closely with FPGA developers, and model the end-to-end radio system.


Key Responsibilities
  • Design signal processing for custom software-defined radio hardware (e.g., channelization, equalization, PA linearization, gain control, carrier synchronization, symbol mapping, framing, channel coding/FEC, etc)
  • Collaborate with FPGA developers to implement and test signal processing on radio hardware
  • Model the end-to-end radio system from earth to space, and back
  • Drive radio architecture trade studies, run link budgets, and optimize the radio system for maximum performance across dozens of markets and use cases

Requirements
  • A passion for working in a fast-paced environment and constantly learning
  • Strong fundamentals in signals and systems (basic transforms, filters, aliasing, analysis in both continuous and discrete domains, interpolation, decimation, etc)
  • Strong fundamentals in digital communications (modulation, coding, synchronization, fading, doppler, multiple access, channel capacity, etc)
  • Familiarity with software development (some experience writing software for DSP, MCU, and/or FPGA, experience in one or more scripting languages)
  • Familiarity with analog concepts (amplifiers, analog filters, gain and delay variation, reflections, compression, etc)
  • Experience working with signal generator, signal analyzer, network analyzer, oscilloscope, etc
  • US Citizenship or Green Card
  • Don't meet all the requirements? Not a problem. We encourage applicants who don't meet all the criteria to apply.

Bonus
  • Experience with software-defined radios
  • Experience with Python
  • Experience with GNU Radio
  • Experience with FPGA development (and/or embedded C)

The base salary for this position is $1750 per week. U.S. Citizenship, Lawful Permanent Residency, or Refugee/Asylee Status Required.


Astranis is committed to creating a diverse and inclusive workplace where everyone can contribute their unique perspective and skills. We welcome applicants from all backgrounds and encourage you to join our team.



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