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Embedded Software Test Engineer - Proto

Cash App

Salary not specified
Nov 5, 2025
San Francisco, CA, US
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Proto is looking for an engineer to focus on ensuring the hardware and embedded software for their mining products are working as intended, and to help define test cases and comprehensive test plans for these products.

Requirements

  • 5+ years of relevant professional experience in electronics and/or software industries.
  • Understanding of product requirements and the ability to create testing strategies and platforms to ensure product compliance.
  • Experience with electronics communications protocols (e.g. SPI, UART, I2C, USB)
  • Experience with debugging tools (e.g. JTAG, SWD, GDB integrations)
  • Experience working with embedded Linux.
  • Experience with writing test cases and test plans.
  • Experience using Python, Go, C, or Rust in automated testing, build systems, or device firmware communication

Responsibilities

  • Focus on ensuring the hardware and embedded software for our mining products are working as intended.
  • Work closely with electrical engineers and manufacturing test engineers to conduct failure analysis on prototypes and EVT units
  • Work closely with mechanical and firmware engineers to test the reliability and performance of our mining products
  • Work closely with our tech ops team to conduct analysis on defects reported in the field
  • Define test cases and comprehensive test plans for our mining products.
  • Create software tools that can automate the process of validating hardware features and firmware used by the device

Other

  • Travel to factory sites and testing facilities for up to 25% of the year
  • Excellent communication skills and empathy for team members and customers
  • Degree in CS, CE, EE, or equivalent practical experience
  • Knowledge of Bitcoin mining
  • Experience with oscilloscopes, logic probes, logic analyzers, and digital multimeters