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An Amazon Frontend Engineer II (SDE-2) loop in Bangalore: a recruiter call plus an online assessment, then four onsite rounds, vanilla JS machine coding on livecode.com, DSA plus JavaScript output on a shared doc, frontend system design on Miro, and a Bar Raiser mapped to the 16 Leadership Principles with a DSA follow-up. Compensation band reported at 35 to 45 LPA. The machine-coding round usually starts with a 5-star rating and is extended twice in the same session (half stars via clip-path, then keyboard and ARIA). DSA favourites are matrix staircase walks and graph cloning, paired with JS output traps on closures and the event loop. System design centers on a news homepage like Times of India with cursor pagination, a discriminated card schema, and breaking-news delivery within seconds. The Bar Raiser is behavioral against the Leadership Principles with one DSA follow-up (lowest common ancestor). Every question below is answered in full: what the interviewer is testing, how to talk through it, working code with complexity, edge cases and follow-ups, plus references. Validated from real public experiences and interview patterns. May vary by team and interviewer.

A 3-round Zepto loop over about 2 weeks via referral: a deep JavaScript round, a React machine-coding round with real product scenarios and repeated extensions, and a hiring manager round mixing project depth, behavioral, and product thinking. Polyfills are favourites: Promise.all, debounce, throttle, curry. Machine coding is extended two or three times, not just the base feature. Be ready to defend every project on your resume three levels deep. Use the product before the HM round. Talk through your thinking out loud. Role: SDE 2, Frontend. Location: Bangalore. Compensation: 30 to 40 LPA. Process: 2 weeks, via referral. Compiled from publicly reported frontend interview patterns. May vary by team and interviewer.

A depth-first CRED loop: one technical round, two machine-coding rounds (vanilla JS, then React), and a cultural-fit round with the Tech Lead who reads back feedback from every prior round. Vanilla JS carries as much weight as React. State design is the real test in the React round. Know why you want CRED specifically. Role: Frontend Developer. Location: Bangalore. Compensation: 28 LPA. Format: Onsite loop. Compiled from publicly reported frontend interview patterns. May vary by team and interviewer.

A standard product company loop: JavaScript and React depth, a frontend system design discussion, DSA, and a hiring manager round. Questions below are what candidates reported for this loop. Role: Frontend Engineer Location: Chennai Compensation: Senior band 4 interview rounds with real reported questions and study answers. Compiled from publicly reported frontend interview experiences.

The take home assignment carries the most weight, and a later round is build and defend, so every decision in your submission must have a reason. Prototype chain, async JS, web security, and DOM internals come up in senior rounds. Unit tests are non negotiable. Role: Senior Software Engineer Location: Bangalore Compensation: Senior band 3 interview rounds with real reported questions and study answers. Compiled from publicly reported frontend interview experiences.

A focused 3 round loop covering problem solving, React design, and fundamentals. Expect rapid follow ups on every answer. Role: Senior Frontend Engineer Location: Remote / Bangalore Compensation: Senior band 3 interview rounds with real reported questions and study answers. Compiled from publicly reported frontend interview experiences.