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Cryptography Firmware Engineer

LMI
$90,000–$130,000/yr
US

  • Develop and maintain embedded firmware supporting secure communications and cryptographic functionality.
  • Integrate and optimize use of the nRF54L Series AES-256 hardware accelerator within embedded firmware.
  • Design, implement, and validate secure key management capabilities for embedded devices.

C/C++ Embedded Firmware Cryptography Debugging
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RFID Solutions & Mesh Firmware Engineer (RFID + IoT + DoD Systems)

LMI
$100,000–$190,000/yr
US

  • Design, develop, and optimize firmware for embedded Mesh devices including asset tags, sensors, and gateways.
  • Deliver passive RFID solutions for DoD logistics modernization through site surveys, demonstrations, and field deployments.
  • Balance remote work with 25-35% CONUS travel to government and customer facilities.

LMI is a digital solutions provider dedicated to accelerating government impact with innovation and speed. It serves the defense, space, healthcare, and energy sectors with a focus on agility and collaboration.

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Embedded Software Engineer, Tech Lead

Astera Labs
$102,200–$131,400/yr
Canada

  • Write and modify embedded C firmware for analog and Ethernet connectivity devices, including register configuration, state machines, and calibration sequences.
  • Develop Python scripts to automate test flows, collect and analyze data, and help build CI infrastructure.
  • Participate in code reviews, architecture discussions, and maintain project tracking with Jira.

Astera Labs provides rack-scale AI infrastructure through purpose-built connectivity solutions. The company is a publicly-traded startup with a small, fast-moving team that values collaboration and ownership.

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