Operating Systems

Understands core OS concepts: processes, threads, scheduling, file systems. Works with Linux: process management, file descriptors, signals, basic system calls.

Proficient in OS internals: VFS layer, process scheduler (CFS), memory management subsystem. Modifies kernel subsystems, analyzes behavior via ftrace/perf.

Deep knowledge of OS architecture: designs kernel subsystems, optimizes scheduler for workload, implements custom security modules (LSM), works with namespaces/cgroups.

Defines OS component development strategy for the platform. Establishes custom OS distribution architecture, conducts kernel subsystem reviews, manages kernel configuration.

Shapes enterprise OS strategy for the organization. Defines approaches to custom Linux distribution, RTOS selection, manages kernel component lifecycle for product lines.