Loop

The Mid-Level Bar

Exactly what separates L4/E4/SDE2 from junior in every round.

0 of 5 lessons complete · 66 min total

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  1. Ownership & Ambiguity ExpectationsEnd-to-end feature ownership versus executing assigned tasks, and how interviewers score self-direction and thriving in ambiguity at L4.Lesson · 14 minNot completed
  2. The Mid-Level Coding BarSame problems as junior, higher standard: near-optimal faster, proactive edge cases, unprompted complexity analysis — and in AI rounds, critically verifying AI output rather than accepting it.Lesson · 15 minNot completed
  3. System Design Expectations by CompanyGoogle's no-design-at-L4 vs Meta E4 and Amazon SDE2 component-scoped rounds: sensible architecture, rough estimates, and surface-to-moderate trade-off depth — not senior multi-region discussions.Lesson · 15 minNot completed
  4. Craft, Collaboration & JudgmentTalking fluently about testing, review, and observability ('how did you know it worked'), emerging mentorship, and articulating why you chose an approach.Lesson · 14 minNot completed
  5. Mid-Level Bar CheckpointJunior vs mid vs senior signals across coding, design, and behavioral evidence.Checkpoint · 8 minNot completed