Independently conducts driver and kernel module reviews. Focuses on race conditions, error handling correctness, proper kernel API usage, and memory barriers.

Designs CI/CD pipelines from scratch. Configures caching for build acceleration. Uses matrix builds for multi-version testing. Sets up deployment pipelines (staging → production). Works with secrets and environment variables.

Applies algorithms for system software: B-tree for FS, hash tables with open addressing, cache-oblivious algorithms. Evaluates hardware-specific complexity.

Applies async I/O: io_uring for Linux, completion-based I/O, coroutines (C++20/Rust async). Designs event loop architectures.

Applies quality tools: sanitizers (ASAN/MSAN/TSAN/UBSAN), static analysis (clang-tidy), fuzzing for edge cases.

Applies concurrent programming: reader-writer locks, thread pools, atomic operations, memory ordering (acquire/release/seq_cst).

Designs system components with proper abstractions: HAL, platform abstraction, API contracts. Applies layered architecture for kernel subsystems and drivers.

Understands TCP/IP stack internals at the OS level — socket buffer tuning, congestion control algorithms, and kernel network parameter optimization. Configures TLS/SSL for custom protocol implementations. Works with low-level network primitives including raw sockets and packet crafting. Understands DNS resolution internals and TTL propagation. Debugs network issues using tcpdump, Wireshark, and eBPF network tracing.

Applies system patterns: Flyweight for memory optimization, Reactor for I/O multiplexing, Chain of Responsibility for packet processing.

Applies system data structures: arena allocators, intrusive lists, radix trees, concurrent hash maps. Optimizes memory layout for cache.

Manages memory: custom allocators (pool, slab, arena), memory-mapped files, huge pages. Analyzes via Valgrind and perf.