Learning path
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Plan, checklist, and delivery basics
- Backend interview prep plan A Lattice master plan for backend loops: round map, skills checklist, must-know topics, 6-week and 2-week schedules, mock rubrics, day-of checklists, and failure modes — with links into every Lattice series.
- Backend interview checklist Backend interview mastery checklist: coding patterns, LLD classics with concurrency, HLD building blocks and tech tradeoffs, behavioral bars, company overlays, and an honest pass/fail gate.
- Interview cheat sheet One-page interview crib: coding patterns, LLD 35-min spine, HLD delivery, STAR behavioral, and offer negotiation scripts — skim before each round.
- Interview bars by level What mid, senior, and staff+ interviewers actually grade in system design — breadth vs depth, who drives, and concrete News Feed bars so you match the level you're interviewing for.
- System design delivery framework A repeatable structure for system design interviews — requirements, entities, API, high-level design, deep dives — built to stop the most common failure mode: running out of time before you deliver a working system.
- How to prepare for system design Two ways candidates blow their prep: skip the foundation, or read endlessly and never design out loud. Here's the fix — a two-phase plan with concrete numbers, not vibes.
- Common system design pitfalls Mistakes that quietly sink otherwise solid designs — the judgment gaps interviewers watch for, and how to recover out loud once you catch yourself mid-mistake.
- Introduction Most candidates lose this round in the first five minutes. What the interview actually tests, the four things you're scored on, and where the real yellow flags are.