Senior Firmware Engineer at Proxy

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(24 open jobs)

Proxy is a digital identity platform that empowers people to authenticate and interact with devices in the physical world using their smartphone.

Job title
Senior Firmware Engineer
Job listing last updated at
Jan 22, 2020
Job listing location
San Francisco
Job listing source
Job listing link
External link
Bay Area company location: 500 3rd St #245, San Francisco CA

Job description

Why we exist... 

At Proxy, we believe that humans should be empowered, rather than beholden, to technology, and that technology should be used to make our experiences in the world frictionless. Our vision is to live in a world where the technology and services we use can securely recognize our physical presence and seamlessly provide us with an experience personalized to our individual needs and preferences. Most importantly - The ability to do this with complete control of your personal data and privacy.

The Role

You will be part of the embedded firmware team working on a variety of firmware projects in a fast paced startup environment. Product development activities include design and development, design reviews, product verification, and field validation along with coordinating with other engineering disciplines (QA,hardware,mobile, backend and customer).
You produce excellent, organized project records and documentation, and high-quality code. You are self-directed, and able to work within scope with minimum amount of supervision.


  • Contribute to embedded software architecture
  • Contribute to design, specification, and test plan reviews
  • Write firmware code and tooling: C, Shell, Python, JavaScript
  • Develop unit tests and system verification tests
  • Refine our toolchain and documentation
  • Assist with production releases and deployments in a cross-functional team


  • 3-5 years of experience using embedded processors such as ARM Cortex, Atmel AVR, FreeScale
  • BS/MS in Electrical, Electronic or Computer Engineering, or another relevant technical degree
  • Able to think critically and creatively to identify solutions to both engineering and customer problems
  • Demonstrated commercial firmware development experience ideally involving an RTOS
  • Demonstrated firmware architecture design thinking and ability to clearly communicate and document your designs
  • Experience with embedded development tools, including open source cross-compile toolchains (eg: ARM GCC), debuggers, ICE, SWD/JTAG
  • Experience with communication protocols and their implementations, including Bluetooth, BLE, USB, SPI, I2C
  • Experience with version control especially Git

Bonus Points

  • Direct experience with network protocol stacks, including BLE, TCP/IP.
  • Direct IoT product development experience involving OTA firmware updates
  • Experience with ARM microcontrollers
  • Experience with Design for Manufacturability, Design for Testability
  • Experience developing proof of concept prototypes, including development board hardware and firmware
  • Can identify electrical schematic errors to the hardware team

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