L2 Support Professional

• Engineer should have strong C programming skills.
• Should have knowledge on Linux internals.

Additionally, candidates should have the below skills:

• Kernel porting and compilation: Includes making existing custom patches work on new kernels, configuring the kernel as per platform requirements (e.g., enabling security features, enabling memory debugging features, kernel hardening, etc.), backporting CVE/PSIRT patches committed in upstream kernel, working on custom patches like logging of stack trace during kernel panic in NVRAM/onboard persistent memory, creating distributions based on Yocto, etc.
• FOSS (Free and Open Source Software) management: This includes creating rootfs, handling toolchain updates, new versions of gdb, gcc, linker, loader, etc., handling custom patches (e.g., patch for making eth analyzer/Wireshark work on switch), handling CVE/PSIRT for FOSS, backporting patches from upstream version, handling nuances of 32-bit in 64-bit underlying architecture, working with GCC and CLANG together, etc.
• Working experience on Cisco Data Centre switches.
• Understanding of NX-OS.
• Virtualization is an added plus.
• Location is not a constraint.