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Founding SDR (Software Defined Radio) Engineer

Thalassa Robotics
San Francisco, CA Full Time
POSTED ON 1/6/2026
AVAILABLE BEFORE 7/4/2026

About Thalassa Robotics:

Thalassa Robotics is a venture-backed startup building the Starlink of the Sea, a mesh network of AUVs coordinated via wireless optical communication. Today, $500B in essential subsea infrastructure is inspected by a decaying fleet of specialized vessels that each cost $100K per day. Thalassa’s platform enables visibility & adaptability during subsea missions, delivering live data streams to remote operators an order of magnitude cheaper than existing ship-centric solutions.


Check out this video on our team and vision: https://www.youtube.com/watch?v=AJSu-hUckFM 


Role Overview:

We are seeking a founding engineer with significant experience working on software defined radios to work on our optical modem team. In this role, you will wear many hats and work on areas including firmware for low level microcontrollers, digital signal processing, and PCB design. This will be a dynamic seat, and candidates should be comfortable operating with a high level of autonomy & flexibility. 


Required Qualifications:

  • 2 years of experience working with software-defined radios and/or extensive projects designing/incorporating SDRs
  • Proficiency with embedded software, including C/C for microcontrollers, low speed digital protocols like I2C, SPI, and UART, and firmware level code 
  • Experience writing Verilog/System Verilog for FPGAs & with FPGA-based DSP
  • Background in designing PCBs with a focus on mixed signal design



Nice to have:

  • History of hobby projects and tinkering
  • Have designed your own SDR before
  • Passion for marine robotics 


We are a small, focused team looking for mission-driven candidates who are passionate about their work. If you are excited to advance the frontiers of subsea technology, explore uncharted depths, and protect our oceans and the assets within them, we would love to hear from you!


This will be a fully in-person role in the Bay Area; we can assist with relocation efforts for candidates from other geographies. Total compensation will include a base salary of $130,000 to $150,000 and equity, determined based on the candidate's experience.

Salary : $130,000 - $150,000

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