Embedded Linux Applications Engineer Job Mars Hill North Carolina USA,Software Development

Location: Mars Hill

Full-time

Hybrid (Average of 2-3 days in office per week)

Mars Hill, NC

$90,000 - $120,000 + benefits

About Us

The Ammortal Chamber integrates five science-backed modalities into one immersive session. Our clients include wellness clinics and spas, sports teams and athletic departments, hotels, and individuals who bring the Chamber into their homes.

We are a small team with a startup culture. Hardware and software engineers, health professionals, and operators work side by side. Since shipping our first product we have grown steadily, and the software that drives the Chamber is now at the center of what comes next.

This role offers hands‑on experience across the whole product, close mentorship from a senior engineer, and the chance to see your work running in the field.

What is this role and why does it exist?

This role centers on Linux systems software for the Chamber: building application‑level software that runs on embedded Linux and interfaces with hardware over common serial and bus protocols (the software layer that sits above the firmware and drives the product). You'll occasionally reach up the stack into frontend work as well, giving you end‑to‑end understanding of the system.

You'll need a solid programming foundation, comfort in Linux, and real curiosity about how software talks to hardware. You'll work directly with the hiring manager, who will guide your ramp‑up and grow your responsibilities as you build confidence. This is a role where you can go deep in embedded Linux and systems software while learning the full shape of a shipping hardware product.

Responsibilities

Develop features and fixes for Chamber application software on embedded Linux, with guidance from senior engineers

Learn and contribute to the software that communicates with hardware over serial and bus protocols

Write clean, tested code and participate in code reviews

Take part in quality assurance to help keep Chamber software reliable

Help investigate and resolve customer issues, escalating when needed

Assist with maintenance of early‑gen Chamber software

Contribute to frontend work as needed

Collaborate with hardware, operations, and customer experience teammates

Skills to Excel

Curiosity: Wants to understand how things work under the hood, from the operating system down to the wire

Continuous Learning: Picks up new languages, tools, and patterns quickly and enjoys doing it

Attention to Detail: Organized and methodical in development and testing

Coachability: Takes feedback well, asks good questions, and applies what you learn

Independent + Collaborative: Balances initiative with knowing when to ask for help

Systems Thinking: Interested in how different layers of the stack fit together

Customer Focus: Cares about how technical work affects the people using the product

Comfortable Multitasking: Can manage a few priorities at once and switch between them

Team

Collaboration:

Works well in a small, cross‑disciplinary team

What technical knowledge do you need to perform in your role?

Required

Proficiency in at least one programming language (Go, Python, C, C++, JavaScript, or similar) and willingness to learn others
Comfort working in Linux environments and on the command line
Experience with version control (Git)
Basic understanding of software development lifecycle and testing practices

Preferred

Exposure to Go or C for systems‑level work
Any experience with hardware, microcontrollers, Raspberry Pi, Arduino, or similar hobby or coursework projects
Familiarity with serial communication or bus protocols (for example Modbus, I2C, SPI, RS-485 or similar)
Exposure to Docker or containerized deployments
Familiarity with Debian‑based Linux systems
Exposure to MQTT or other IoT communication protocols
Familiarity with shell scripting (Bash)
Exposure to…