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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Embedded Linux Software Engineer, Principal - **Company:** AT&T Inc. - **Location:** Bothell, WA, United States - **Experience:** Expert - **Salary:** $174,100.0 - $261,100.0 - **Contract:** Permanent contract - **Skills:** C (Programming Language), Agile Methodology, Artificial Intelligence, Applications Architecture, Automation of Tests, Business Software, Communications Protocols, Dynamic Host Configuration Protocol, Software Debugging, Linux, Domain Name System (DNS), Linux on Embedded Systems, Embedded Software, Inter-Process Communication, CURL, Linux Kernel, Networking Basics, Routing, Network Protocols, Open Source Technology, Proprietary Software, Software Engineering, Syslog, Transmission Control Protocol (TCP), Tcpdump, Toolchain, Wi-Fi Technology, Data Logging, Firewalls (Computer Science), Openwrt - **Published:** July 7, 2026 - **Apply:** https://dejobs.org/x/x/FC4E1930827043049623A91A7D4D1210/job/ ## About the Role * Knowledge of Linux operating system, process execution, multi-process environments, inter-process communication. Good understanding of networking fundamentals, UDP/TCP basics, packet flow through the Linux packet processing stack. Understanding of Linux firewall and routing concepts. Knowledge of common networking protocols: DHCP, DNS. Familiarity with tcpdump and network protocol analysis. * Knowlege of wifi concepts, AP and station roles, association and authentication of wifi stations, configuration of ssids. * Familiarity with the gcc toolchain and debugging stack traces. Familiarity with syslog and logging concepts. * Experience in an Agile development environment. * Extensive experience with C programming. Familiarity with standard C libraries, and other common libraries like libssl, libcrypto, libcurl. Knowledge of prplware libraries. Familiarity with the OpenWrt build system, and its IPC mechanism ubus, overlayfs, and its config system UCI. * 7+ years of experience in embedded software development. * Track record of creating innovative solutions and new applications through the design, development, and coding for innovative Consumer and business applications. ## Description Join a strategic initiative to transform our broadband device software development organization. As an Embedded Linux Software Engineer, Principal - you will contribute to the development of high-quality, innovative software for the next generation of broadband gateways serving 15 million+ customers. You will leverage your expertise to drive technical excellence, integrate AI solutions, and champion a quality-first approach to software delivery. Your individual contributions will help differentiate our software in a highly competitive market and play a vital role in shaping industry-leading products. What You'll Do: Embedded Linux Software development for Broadband Customer Premise Equipment (CPE). * Migrating CPE from a proprietary software platform to an Opensource Prplware (OpenWRT) based software solution. * Design, Develop and Document existing systems to improve reliability and develop new innovative features. * Software development for new Hardware with cutting-edge features and technology. * Manage ongoing software architectural updates that include new Prplware, OpenWRT and Linux Kernel versions. * Development in an Agile environment with up to 5 releases a year. * Develop automated testing to validate new features. * Develop applications to run in a Lifecycle Management (LCM) container on the Broadband CPE. ## Related Videos - [Better Together: Leveraging Your Observability Tools as a SIEM](https://www.wearedevelopers.com/videos/2118-better-together-leveraging-your-observability-tools-as-a-siem) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Don’t Insert Crazy! 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