Know the pipeline you are walking into
Almost every product company runs a version of the same funnel. Knowing the stages lets you prep the right thing at the right time instead of grinding LeetCode and hoping.
- Resume screen — recruiter or ATS filters on keywords, companies, and impact.
- OA / phone screen — one or two timed coding problems, often on HackerRank or CodeSignal.
- DSA rounds — 2–3 live coding interviews on data structures and algorithms.
- System design — 1–2 rounds for mid/senior; design at scale and defend trade-offs.
- Behavioral / culture — STAR-format leadership and collaboration questions.
- HR / offer — compensation, notice period, and negotiation.