Principal Embedded Linux Software Engineer

AT&T

Embedded Linux Software Engineer contributing to the development of broadband gateway software at AT&T. Focused on high-quality software delivery and integrating AI solutions in a competitive market.

Posted 7/6/2026full-timeDallas • Texas • 🇺🇸 United StatesLead💰 $174,100 - $261,100 per yearWebsite

Tech Stack

Tools & technologies

DNSLinuxOpen Source

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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
Knowledge 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.

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Linux Operating SystemMulti-Process EnvironmentsNetworking FundamentalsCommon Networking ProtocolsPrplware LibrariesAutomated TestingGCC ToolchainStandard C LibrariesWiFi ConceptsDebugging Stack Traces