1. 15 mins Phone Call: Pros: Quick and efficient way to gauge a candidate's communication skills and initial fit for a position. Allows both the candidate and the interviewer to clarify initial doubts or questions. Can save time for both parties if there is a clear mismatch. Cons: Limited time means that deeper, potentially critical topics might not be addressed. May not provide a comprehensive view of the candidate's qualifications or personality. 2. Homework: Pros: Enables an evaluation of a candidate's practical skills and ability to complete real-world tasks. Allows the candidate to showcase their skills beyond the confines of an interview setting. Offers insights into a candidate's time management, dedication, and resourcefulness. Cons: Some candidates might not have equal time outside of their current jobs or personal commitments to dedicate to the homework. There's potential for dishonesty, as candidates might get help or use resources not allowed. Can feel burdensome or unfair to candidates, especially if the task is time-consuming without any compensation. 3. System Design: Pros: Evaluates a candidate's technical depth, problem-solving skills, and ability to design scalable and efficient systems. Provides an opportunity for interactive discussions, which can give insights into a candidate's thought process, collaboration skills, and adaptability. Relevant for roles where architectural and system-level thinking is crucial. Cons: Can be intimidating for some candidates, possibly leading to performance anxiety. Might not be entirely reflective of day-to-day tasks, especially for more junior roles. Requires well-trained interviewers to effectively evaluate and guide the discussion.