Junior Embedded Firmware Engineer - IoT Security

ADT; Center Square (PA); On-site; USD 55,000 - 75,000; Full time

Job summary

ADT is seeking an entry-level Firmware Engineer to develop embedded firmware for connected-home and security products. You will write and debug C/C++ code, learn embedded Linux, and collaborate with hardware, QA, and product teams to deliver reliable firmware.

This role targets recent graduates or early-career engineers. Mentoring from senior engineers, opportunities to expand skills in build tools, testing, CI, and protocol stacks while contributing to ongoing projects and documentation.

Qualifications

• Basic C and/or C++ programming fundamentals demonstrated through coursework or projects.
• Basic familiarity with Linux command-line development.
• Introductory OS concepts such as processes, threads, memory; embedded experience is helpful but not required.
• Basic exposure to networking concepts (IP, Wi-Fi, client/server, secure connections).
• Some exposure to scripting with Shell, Python, or similar tools for simple tasks.
• Basic familiarity with Git or another source-control tool.
• Ability to read technical documentation and learn basic lab tools.

Responsibilities

• Develop and maintain embedded firmware and applications in C/C++ for Linux-based IoT security devices, with mentoring from senior engineers.
• Assist with embedded Linux setup and configuration, including build tools, board support, and basic system customization with guidance from senior engineers.
• Help implement and debug firmware features that connect devices to backend services over Wi‑Fi using secure network communication and structured messages such as JSON.
• Support firmware features that communicate with wireless devices and radios, such as Z‑Wave, Bluetooth/BLE, Zigbee, or DECT/ULE, based on product needs.
• Work closely with the hardware team on board bring-up, peripheral interfaces (UART, SPI, I2C, USB), and root-cause analysis of hardware/software issues.
• Write unit tests and help the QA team with test plans and CI for firmware builds.
• Support the Products team in clarifying requirements and translating them into implementable firmware tasks.
• Use Git, build scripts, and CI tools to support firmware development and testing.
• Document designs, debug notes, and how-to guidance for reuse and extension of work.

Skills

C/C++ fundamentals

Linux familiarity

Networking basics

Scripting (Shell/Python)

Git basics

Reading documentation

Curiosity & problem-solving

Education

Bachelor's degree in Computer Engineering / Electrical Engineering / Computer Science

Tools

Buildroot / Yocto

Embedded Linux

Device drivers / bootloaders (U-Boot)

CI tools (Jenkins, GitHub Actions)

Job description

ADT is seeking an entry-level Firmware Engineer to develop embedded firmware for connected-home and security products. You will write and debug C/C++ code, learn embedded Linux, and collaborate with hardware, QA, and product teams to deliver reliable firmware.

This role targets recent graduates or early-career engineers. Mentoring from senior engineers, opportunities to expand skills in build tools, testing, CI, and protocol stacks while contributing to ongoing projects and documentation.