We are seeking a highly skilled Embedded Linux Developer to create a minimal and fast-booting firmware for the Raspberry Pi 4 using Buildroot.

The work requires precision under tight deadlines, adaptability to evolving project needs, and the ability to operate in a dynamic, high-paced environment.

• Develop a minimal Buildroot-based Linux image for Raspberry Pi 4
• Configure and initialize a camera using V4L2
• Capture multiple images, compress them to JPEG format, and transmit via LTE modem (Sequans GM02SP) using AT commands over HTTP
• Create robust, autonomous Shell or C-based scripts for the complete cycle
• Optimize for low-power consumption, fast startup, and operation in headless environments
• Work efficiently under pressure, respond quickly to challenges, and adapt to changing requirements during development
• Deliver full documentation and conduct training to ensure maintainability and handover

• Strong experience with Buildroot and embedded Linux development
• Solid practical knowledge of Raspberry Pi 4 and V4L2
• Familiarity with AT command protocols, ideally for Sequans SQN modems (GM02SP in particular)
• Proven ability to develop systems for fast boot and low energy consumption
• Advanced skills in Shell scripting and/or C programming
• Experience working in high-pressure environments with tight schedules and frequent iterations
• Self-driven, reliable, and comfortable working in lean and fast-moving teams

• A production-ready Buildroot image (.img) for Raspberry Pi 4
• Script(s) or binary performing the complete image capture–transmit–shutdown workflow
• Any required Buildroot configurations or custom patch sets
• Full technical documentation covering system architecture, build and usage instructions, and extension guidance
• (Optional) Training session(s) or walkthroughs for internal developers