Stage 1: Initial Screening (30 minutes) Purpose: Assess foundational knowledge and communication skills. Format: Phone or video call. Content: Basic questions covering high-level OS concepts and C++ basics. Stage 2: Technical Deep Dive Purpose: Evaluate in-depth technical knowledge and problem-solving abilities. Format: Video call with live coding and discussion. Session 1: OS Concepts and Multithreading. Session 2: C++ Optimization and Concurrency. Stage 3: Practical Assessment (90 minutes) Purpose: Assess practical coding skills and application of concepts. Format: Coding challenge or pair programming session. Content: Real-world problem involving OS concepts and C++ concurrency.