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Firmware Engineer Contractor

MistyWest

About MistyWest

MistyWest is a hardware engineering consultancy that exists to create novel technologies that enable a healthier planet and bring prosperity to all humankind, with a focus primarily on hardware projects that advance the UN Sustainable Development Goals.

We are hiring a Firmware Engineer (Contractor) to support an embedded product build. You will help develop core firmware features, including device sensing, power management, connectivity, and reliable system reporting.

Responsibilities

  • Key Responsibilities
  • Partner with hardware, mechanical, and software/cloud teams to support integration, troubleshooting, and validation

Requirements

  • Develop and maintain firmware for connected embedded devices, coordinating across multiple boards or modules as needed

Implement reliable sensor handling and event-driven state logic

  • Support wireless connectivity features, including provisioning/setup workflows and basic network health reporting
  • Ensure secure communications and define retry, buffering, and recovery behaviors when connectivity is unavailable
  • Deliver periodic device state reporting and time-sensitive event notifications aligned to service targets
  • Optimize low-power operation through effective sleep/wake strategies and battery-aware behaviors
  • Create and execute test plans for key functional and integration scenarios
  • Produce clear documentation, including firmware design notes, configuration details, and test evidence for acceptance readiness
  • Must-Have Qualifications
  • 5+ years of embedded firmware experience
  • Strong C/C++ experience for microcontrollers and/or embedded systems
  • Experience with low-power, battery-operated products and power budgeting

Hands-on experience with: GPIO, ADC, interrupts, timers, debouncing

  • Experience implementing secure connectivity: Wi-Fi provisioning patterns (AP mode, captive portal, BLE assist, or similar)
  • Strong software practices: Git, code reviews, clean architecture, testable firmware patterns
  • Nice-to-Have
  • RTOS experience (Zephyr, FreeRTOS, or similar)

Experience with Wi-Fi positioning or location inference workflows

  • Familiarity with regulatory-minded development (FCC/UL), and privacy/security standards
  • Experience bringing products through integration testing and production readiness
  • Python scripting for test automation or tooling

Benefits

  • Highly flexible: negotiate your own rates, hours and work location.
  • Hardware & Software Access: MistyWest can provide equipment and software support where needed
  • Try us out! Find out if MistyWest would be a good permanent employer for your needs and career direction
  • Amazing Community: plug into a great local and global community of engineers and product design enthusiasts for events, projects, potential work & personal development.

Apply

[Apply at MistyWest](https://apply.workable.com/mistywest/j/939A0276E8/apply)