Firmware Engineering Intern

Firmware Engineering Intern – On-Site in Maryland Heights, Missouri

About The Role

We're looking for a firmware engineering intern to own the code that makes our products work — the embedded software running on the microcontrollers at the heart of everything we build. You'll write it, test it on real hardware, and see it come to life in a product people actually use. This role is what you make of it. We're looking for a self-starter who can take the reins and run without hand-holding — someone who will make the position their own and help shape the future of our firmware and embedded systems as we grow. We'll give you real ownership and trust; we expect you to run with it. We're hiring for the long term. We want someone who can grow with us and step into a permanent, senior role as the company scales.

Responsibilities

• Write, test, and debug firmware for the microcontrollers that run our products (embedded C/C++)
• Bring up new hardware — get sensors, displays, radios, and other peripherals talking over I2C, SPI, UART, and similar
• Build and improve product features, then validate them on real hardware and iterate
• Debug with oscilloscopes, logic analyzers, and serial output — track issues down and fix them
• Work closely with our electrical and mechanical team to integrate firmware into the full product
• Help shape how we build, version, and document firmware as we grow (Git and good habits)
• Contribute to firmware for both existing products and new prototypes

Requirements

Above all, we care about attitude and initiative. If you're a self-starter with a great attitude — someone who can take a problem and run with it, a genuine team player, and eager to learn — you'll thrive here.

• A self-starter who takes initiative and works independently — we'll hand you ownership, not step-by-step direction
• Hands-on experience programming microcontrollers (Arduino, ESP32, STM32, PIC, or similar) — school, club, or personal projects count
• Solid programming fundamentals in C or C++
• Real projects you've built — we want proof you've made things work on hardware (a portfolio or GitHub strongly preferred)
• Currently pursuing or recently completed a degree in Computer, Electrical, or Software Engineering (or a related field, or equivalent hands-on experience)
• A great attitude, strong work ethic, and eagerness to learn and adapt

Nice to have

• Experience with embedded communication protocols — I2C, SPI, UART, BLE/Wi-Fi
• Comfort reading datasheets and schematics and working close to the hardware
• Debugging with oscilloscopes and logic analyzers
• Version control with Git, and some RTOS or bare-metal experience
• Familiarity with tools like PlatformIO or the ESP IDF toolchain

Pay

$25/hr

Schedule

Part-time, up to 30 hours/week — flexible around a class schedule

Location

On-site in Maryland Heights, Missouri — you'll be working hands-on with our hardware and team

Opportunity

We're hiring with the future in mind — this role is built to grow into a permanent, full-time position for the right person.