Firmware Developer

Tech3pillars Technologies; Alaska; On-site; USD 110,000 - 170,000; Full time

Job summary

Tech3pillars Technologies seeks a Senior Firmware Developer to design and maintain embedded software for broadband, video, and IoT devices. You will work on RDK-based platforms such as set-top boxes, gateways, and routers, focusing on robust, efficient firmware in constrained environments.

The role emphasizes C++11/14/17, Embedded Linux, and RTOS, with exposure to scripting in Python and Perl, plus containerized toolchains. On-site Denver, CO, participation in cross-functional teams is expected.

Qualifications

• Must have extensive C++ in embedded contexts (11/14/17).
• Strong Python and Perl scripting for automation and tooling.
• Deep experience with Embedded Linux build systems (Yocto/Buildroot) and RTOS.

Responsibilities

• Develop, integrate, test, and maintain broadband, video, and IoT solutions on RDK-based devices.
• Work on set-top boxes, gateways, and routers; handle bring-up and ongoing maintenance.
• Contribute to safety and quality practices in embedded software development.

Skills

C++11/14/17 embedded

Python

Perl

Embedded Linux

RTOS

I2C/SPI/UART/CAN/USB/TCP-IP

Broadband/IoT on RDK devices

Tools

Docker

CMake

Job description

Job Title : Senior Firmware Developer

Location: Denver, CO

Detailed Job Description:

KEY RESPONSIBILITIES

Experienced Engineer specializing in developing, integrating, testing, and maintaining broadband, video, and IoT solutions on RDK-based devices such as set-top boxes, gateways, and routers

Must have skills:

• C++ (11/14/17)
• Python
• Perl
• Embedded Linux (Yocto/Buildroot)
• RTOS (FreeRTOS, ThreadX, Zephyr)
• I2C, SPI, UART, CAN, USB, TCP/IP
• Experienced Engineer specializing in developing, integrating, testing, and maintaining broadband, video, and IoT solutions on RDK-based devices such as set-top boxes, gateways, and routers

Good to have skills:

• Wireless stacks (BLE, Wi Fi, Thread, Zigbee)
• Edge AI
• DSP
• ISO 26262, IEC 62304, MISRA C/C++

Key Niche Skills

Programming:

• Strong proficiency in C++ (11/14/17) for embedded contexts (const correctness, RAII, templates, STL in constrained environments).
• Strong scripting with Python (pytest/unittest, argparse, asyncio/threads, serial, numpy/pandas for analysis).
• Working experience with Perl for legacy automation, parsing, tooling, infrastructure scripts.

Embedded Expertise

• Experience with microcontrollers (e.g., ARM Cortex-M/R/A) or Embedded Linux (Yocto/Buildroot, device tree, system).
• Familiarity with RTOS (e.g., FreeRTOS, ThreadX, Zephyr) and interrupt-driven design.
• Hands-on with communication protocols: I2C, SPI, UART, CAN, USB, TCP/IP.
• Board bring-up, BSP customization, bootloaders (U-Boot), secure boot, OTA update mechanisms.
• Experience with Yocto, Cmake toolchain files, and containerized toolchains (Docker).
• Exposure to safety or quality standards (ISO 26262, IEC 62304, MISRA C/C++).
• Experience with wireless stacks (BLE, Wi Fi, Thread, Zigbee), edge AI, or DSP.
• Knowledge of power management, low-power modes, and battery-operated devices.
• Familiarity with Perl CPAN tooling and migration of legacy Perl scripts to Python when appropriate.
• Performance profiling and memory analysis on embedded targets (perf, gprof, valgrind, ETM/ITM).