23 days ago
Bengaluru, India or Hyderābād, IndiaSenior
Responsibilities
- Architect, develop, maintain, and optimize high-performance embedded firmware in C and C++ across residential gateway hardware platforms.
- Own Linux wireless architecture and configure or optimize Wi-Fi 6E and Wi-Fi 7 features using hostapd, wpa_supplicant, iw, and wireless subsystems.
- Profile OS memory and CPU usage with perf, Valgrind, and kernel utilities to resolve leaks, race conditions, and performance bottlenecks.
- Design Python-based automated testing and unit-testing frameworks for system components, APIs, and firmware reliability.
- Maintain hardware-agnostic implementations across Broadcom and MaxLinear SoCs using prpl APIs.
- Develop IPC services using ubus and/or iMTP and manage Layer 2/Layer 3 routing, bridging, and packet forwarding.
- Implement device-management and service models using TR-181 and USP/TR-369.
- Configure containerized microservices and virtual execution environments with Docker and prpl LCM.
- Manage Git source control, branching strategies, and firmware release pipelines.
Requirements
- At least 5 years of hands-on embedded firmware development experience in telecom, networking, or residential gateway industries.
- High proficiency in C and modern C++ for resource-constrained embedded systems.
- Strong Embedded Linux development experience in OpenWrt or prplOS ecosystems.
- Production-level expertise with TR-181 data models and USP/TR-369 broadband management standards.
- Experience deploying, isolating, and configuring containerized microservices with Docker and lifecycle tools such as prpl LCM.
- Deep knowledge of the Linux Wireless stack, including hostapd, wpa_supplicant, iw, and wireless drivers.
- Strong understanding of Layer 2/Layer 3 networking, routing, and bridging.
- Hands-on experience with Linux profiling and debugging tools, specifically perf and Valgrind.
- Strong Git expertise, including source management and branching strategies.
- Experience with Wi-Fi 6E or Wi-Fi 7, Python automation, embedded unit-testing frameworks such as CUnit, Unity, or PyTest, OpenWrt ubus or iMTP, and Broadcom or MaxLinear SoCs is preferred.
Benefits
- Regular full-time position with 40 hours per week.
- Locations are Bangalore, India, or Hyderabad, India.
- AT&T provides equal employment opportunity and reasonable accommodations for qualified individuals with disabilities.
- AT&T is a fair chance employer and does not initiate a background check until after an offer is made.