8 days ago
Responsibilities
- Architect and implement Python-based automated testing and unit-testing frameworks for firmware components, APIs, and system reliability.
- Profile and optimize Linux memory and CPU performance using perf, Valgrind, and kernel utilities, including resolving memory leaks, race conditions, and CPU bottlenecks.
- Design, configure, and optimize Linux wireless features for Wi-Fi 6E and Wi-Fi 7 using hostapd, wpa_supplicant, iw, and wireless drivers.
- Architect, develop, and maintain embedded firmware in C and C++ across residential gateway hardware platforms.
- Maintain hardware-agnostic implementations across carrier-grade SoCs using prpl APIs.
- Develop scalable IPC services using ubus and/or iMTP.
- Design and troubleshoot Layer 2 and Layer 3 networking, including routing, bridging, and packet forwarding.
- Implement device-management and service models using TR-181 and USP/TR-369.
- Configure and manage containerized microservices and virtual execution environments with Docker and prpl LCM.
- Manage source code, branching strategies, and firmware release pipelines with Git.
Requirements
- 10+ 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 with OpenWrt or prplOS.
- Production-level expertise with TR-181 data models and USP/TR-369.
- Experience deploying, isolating, and configuring containerized microservices with Docker and lifecycle tools such as prpl LCM.
- Deep knowledge of the Linux Wireless stack, hostapd, wpa_supplicant, iw, and Linux wireless drivers.
- Deep understanding of Layer 2/3 networking, routing, and bridging.
- Hands-on experience with Linux profiling and debugging tools, specifically perf and Valgrind.
- Strong Git expertise, including source-code and branching-strategy management.
- Experience with Wi-Fi 6E and Wi-Fi 7 implementation, configuration, or debugging is preferred.
- Python proficiency for automated test scripts, hardware validation, or test execution is preferred.
- Experience with embedded unit-testing frameworks such as CUnit, Unity, or PyTest is preferred.
- Familiarity with OpenWrt ubus and message-bus architectures such as iMTP is preferred.
- Experience developing abstraction layers on Broadcom or MaxLinear residential gateway SoCs is preferred.
Benefits
- Regular full-time position with a 40-hour work week.
- Located in Bangalore, India, or Hyderabad, India.
- AT&T provides reasonable accommodations and follows equal employment opportunity and fair-chance hiring practices.