Amazon SDE I · AUTA APJ · Job 10454435 · Round 4 only

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What this leftover hour is

This is a rehearsal notebook for Adarsh Vishwakarma. Read it as yourself. R1 was 13 Aug 2026. R2 was 18 Aug 2026. R3 is done. This folder is the leftover hour only. Live Code is Java. Job 10454435 still has no public write-up that names a live-round question. Other people’s leftover hours show what a later slot can look like. They are not a list for this Job ID. Unnamed stays unnamed. This chapter does not describe Round 3.

Companions: older 25-chapter notebook · research bible · study book.

What a leftover hour can be

The calendar may say Bar Raiser, Hiring Manager, GenAI Fluency, Behavioural, or nothing. Other SDE I write-ups used all of those labels after two lives. The room still starts with one prompt. You answer that prompt. You do not name the slot out loud.

What they might ask

IE-asked as loop shape, not as this Job ID. LC 7563011 AUTA Bengaluru: third live was Hiring Manager, no Bar Raiser named, then an offer call. LC 7850431: Round 4 heading is Behavioural — that heading stays Behavioural.

What you say

I’m here for a sixty-minute interview. I’ll take the first prompt as given and go deep on it.

They might ask next

If they askYou answer
A named Leadership PrincipleThe primary story for that principle (chapter 3). One project.
They paste codeWrite Java. Restate constraints first.
Current roleIQVIA, Kochi, two FastAPI systems, then stop. Chapter 2 has the spoken paragraph.
What this round “is”You do not classify it. You answer the prompt they just gave.

Keep straight

Tighten

Stop after the first prompt’s answer. The hour script is chapter 2. Stories are chapter 3. Coding families are chapter 6.

Shapes other candidates reported

A leftover hour after two lives is not one format. Other candidates reported LP-only, LP plus DSA, work deep-dive then leftover DSA, Hiring Manager with no DSA named, and Hiring Manager that was coding. Length was often the calendar hour. Several write-ups ended in about 22–40 minutes. n below is a count in an 11-IE hour lock, not a rate, and not this Job ID.

What they might ask

IE-asked hour shape. Locked later-slot dump: 11 must-open IEs, not a census. Zero public hours for Job 10454435. Nisarg exact stems stay unnamed.

What you say

I prepared to go deep on one story and to write Java if an editor opens. I’ll follow whichever they start.

They might ask next

If they askYou answer
The hour stays on storiesMechanisms and resume numbers. Same story on the why.
DSA after twenty minutes of work talkSwitch to the editor without a second intro. Java.
They end at minute twenty-fiveAsk the team-week questions (chapter 2), thank them, stop.

Hour lock (other loops)

ShapeExamplesNotes
LP-only labeled BR Reddit 1qj304z ~25 min; Nisarg (all-16 claim vs 1h calendar); LC 6425074 ~40/60; IE.in 2024-grad ~37 min; LC 7623949 ~22 min EU; LC 8362604 BR full hour; LC 8430457 BR LP-only IE-asked hour shape. Nisarg exact stems unnamed.
LP+DSA on labeled BR LC 7406809 tree path A/B/C; LC 6806195 Nice Subarrays; Divanshu unnamed 2-pass; LC 6866029 Union-Find; LC 7035289 Unique Paths-like AUTA. Third live was the last named on 7406809 and 6806195.
Recruiter said LP-only / no Live Code, room still DSA 7406809; 6806195 n=2 AUTA in the hour lock. Not a law.
Recruiter said LP-only and it was LP 1qj304z; 7623949 format shared beforehand Matching framing is not the same as length of hour.
HM after two lives, no DSA named LC 7563011 POC ~25–35 min No BR named then offer. A hidden Bar Raiser on that loop was not verified from the post.
HM DSA then later BR LP LC 8362604 AUTA APAC India 2026. Combine Garlands was HM, not BR.
BR then later HM Taanya (maps+heaps unnamed on HM) Order opposite 8362604. LinkedIn.
Work deep-dive then leftover DSA Shiwangi R4 Medium, 17:00–18:00, unnamed sliding window after ~40 min work Fourth live. Not labeled BR or HM. Medium.
Ended early vs 1h calendar 5 of 11 locked hours (~22–40 min) Write-up fact. Not a rule that yours will end early.

Bookstore word-count on Shiwangi’s loop is LLD in an earlier live, not leftover DSA. Independent Rate Limiter SDE I live-round count stays 1, not UTA-default leftover LLD.

Keep straight

Tighten

Use this table to stay ready for more than one shape. Do not pick a winner for tomorrow. If they start a story, stay on the story. If they paste code, chapter 6.

How other loops branched after two lives

You cannot know this leftover hour’s label from other people’s posts. You can know what those posts did after two lives, then stay ready for more than one shape. The tree is a reading aid. It is not a forecast for Job 10454435.

What they might ask

IE-asked as loop shape. HM-vs-BR dump: nine unique opened bodies, not a census. AUTA first-hand in that table: five reports, not a process spec.

What you say

I’ll treat whatever they open — a story, a tree, or a work walkthrough — as the round.

They might ask next

If they askYou answer
HM-shaped: POCs, multiple solutions, current workIQVIA Hybrid RAG plus LangSmith traces (Invent / Backbone). Chapter 3 and 5.
BR-shaped LP, no nameDefault pair: Dive Deep (Ylogx Redis + RLS), then Deliver (Horizon 17th). Chapter 2.
A later invite still arrives after this hourThat also happened on other loops (8362604, 7724048, Taanya). Answer the new hour the same way.

Reading tree (other candidates, OA omitted)

After two lives, other candidates’ next named slot:

  labeled Bar Raiser
    ├─ last named live
    │     LC 6806195  LP + Nice Subarrays (mail had no Live Code; DSA anyway)
    │     LC 7406809  tree path, then couple LP (HR had said three LP only)
    │     Reddit 1qj304z  LP unnamed, ~25 min (recruiter said LP only; body reports LP)
    │     Prince Medium  internships + LP unnamed  — Job 3057703, not this Job ID
    └─ then a later HM
          Taanya  BR deep-dive, then final HM maps+heaps unnamed + GenAI

  labeled Hiring Manager
    ├─ last named live
    │     LC 7563011  POC/research prompt, no DSA named, no BR named, offer after
    └─ then a later BR
          LC 8362604  HM Anagrams variation + Combine Garlands, then BR LP 1 hour
          LC 7724048  HM Next Greater + LLM prompts, then BR three LP scenarios

  neither HM nor BR on the heading
          LC 7850431  R3 GenAI+tech, R4 Behavioural (heading stays Behavioural)

TUF popular-companies: their numbered Round 4 after OA-as-R1 is usually
the third-live analogue. A true fourth live showed as their Round 5 on
four IEs in that folder.

Keep straight

Tighten

Read the tree once. In the room, follow the first prompt. TUF “Round 4” after OA-as-R1 is usually already-done analogue, not leftover LLD.

The OA-as-R1 remap

This card is for how you read other people’s “Round 3” and “Round 4.” If their Round 1 was the online assessment, every later number is shifted. Their Round 3 is often the second-live analogue — already done in this loop — not the leftover hour. OA is not a round. You do not say that sentence in Zoom.

What they might ask

Rule from the later-slot merge. Worked examples: GFG 2025, LC 6800853 / 6881058, igreaper. TUF email keyword “their R4 SD” remaps to a third-live analogue, not a guaranteed leftover LLD.

What you say

I answer the prompt in this room. I do not number other people’s rounds out loud.

They might ask next

If they askYou answer
(Study-time) their heading is OA as Round 1Drop OA. Count lives. Decide whether the heading is leftover-shaped.
(Study-time) their Round 3 is Kafka or grid paths after OA-as-R1Second-live analogue. Already done in this loop. Not tonight’s leftover grind.
(Study-time) TUF live Round 4 after OA-as-R1Usually third-live analogue. Their Round 5 on four IEs was a true fourth.

Heading map after dropping OA

Their headingMaps to after dropping OA
OA called Round 1Not a live
Their Round 2 / first live after OAFirst live — already done (13 Aug 2026)
Their Round 3 / second live after OASecond live — already done (18 Aug 2026)
Their Round 4 / BR / HM after two livesLeftover later-slot analogue (this booklet’s family)
TUF: their live Round 4 after OA-as-R1Usually the third-live analogue. Their Round 5 on four IEs was a true fourth.

Keep straight

Tighten

When a new write-up appears tonight: drop OA first, count lives, then decide. The next three cards are worked examples.

GFG 2025 leftover stems

A GFG Off-Campus 2025 write-up numbers OA as Round 1, then two technicals, then a Bar Raiser. The Bar Raiser is leftover-shaped. Their Round 3 coding (Connect Sticks + Rotten Oranges) is second-live analogue — already done in this loop. Recruiter comment that the interviewer was “unsure about my candidacy due to the LP part” was after that second technical, not the Bar Raiser.

What they might ask

Source: Amazon Interview Experience for SDE-I (Off-Campus)(2025). OA-as-R1 Y. UTA/AUTA not named. Job ID on the page is not 10454435. IE-asked on the BR list. Follow-up tree beyond those five stems: not in the opened body. Resume-derived answers below.

What you say

I am a software developer intern at IQVIA in Kochi. I work on two systems — LangGraph Deep Research across more than two hundred websites, and Hybrid RAG on Azure AI Search with a GraphDB for two-hundred-page BRDs, with LangSmith tracing. I stop there.

They might ask next

If they askYou answer
Deep dive into a bug or taskYlogx Redis + RLS together (Dive Deep primary). Not a second IQVIA intro.
Conflict with a co-worker / managerIQVIA hybrid versus vector-only, then commit on LangSmith evals (Backbone). No manager quote on the resume.
Negative feedbackArgus 73% mAP was not shippable for floor alerts. Gate was 89% mAP and 24 FPS, then 20+ cameras.
Learnt something not requiredIQVIA LangGraph traces as the stop. If Invent, Learn, and Backbone already used IQVIA, this goes to Horizon ROS2 + GStreamer + ZED (Learn backup).

Keep straight

Tighten

Current-role answer stops after two IQVIA systems. The next stem is a new story, not four internships stacked onto IQVIA.

LC 6800853 / 6881058

Two Discuss posts are the same candidate. The earlier post numbers a DSA hour as a later round. The later post is a Bar Raiser with a linked-list construction. OA-as-R1 applies. After dropping OA, that Bar Raiser is a third live, leftover-shaped — not a stamped problem for this Job ID.

What they might ask

LC 6800853 (grid paths + digit-subtract family) now hrefs LC 6881058. Title AUTA on 6800853. FLAG OA-as-R1. Chronological lives after dropping OA: the BR is the third live. IE-asked as shape. Candidate wording on the BR item stays unnamed as an LC numeric id. 6800853 grid paths = second-live analogue, already done. LC 6369243 is a different BR (third live, OA-as-R1 N) with similar linked-list maximum-sum wording; still no 962 stamp.

What you say

I build one walk that always takes the larger remaining sum, switching lists only at a shared node, and I track the running sum in a long so the total does not wrap.

They might ask next

If they askYou answer
Can values be negative?Ask before coding. If yes, “always take larger remaining” still holds; dry-run a negative tail.
Does common mean equal value or same node identity?Ask. Implement the one they confirm.
Are the lists strictly increasing?Ask. It changes how you detect the next shared node.
Extra space is bannedTwo pointers on the live lists. Not a copied array.

Keep straight

Tighten

Dry-run a tiny pair of lists out loud, then type Java. Full families live in chapter 6.

igreaper leftover why-chain

Pratham Sharma’s Medium post numbers OA as Round 1. Their Round 3 includes Kafka ordering and B versus B+ trees. That hour is second-live analogue. Their Round 4 Bar Raiser is leftover-shaped LP with deep why-chains. “How did you scale it?” on that IE was their Round 2 (first live after OA), not the Bar Raiser.

What they might ask

Source: Amazon SDE-1 Interview Experience (3 Mar 2026). OA-as-R1 Y (Round 1 = OA Oct 2025). Loop: OA · Round 2 Nov · Round 3 Dec · Bar Raiser Round 4 Jan 2026 · offer Feb. UTA/AUTA not named. Not Job 10454435. IE-asked on the BR why-list. Project discussion themes: technical depth, trade-offs, scaling decisions, failure handling, metrics — themes, not a quoted “10×” question. Interviewer-quoted 10× in opened later-slot bodies: n=0.

What you say

I pick one project and stay on it. I can say why I chose the mechanism, what number moved, what I would sequence earlier next time, and where I disagreed technically and then committed.

They might ask next

If they askYou answer
Why, on the story you just toldSame project. Mechanism, discarded option, number that moved.
What would you do differentlySame story: denied-tier tests earlier (Ylogx), gold questions frozen earlier (IQVIA), ship-blocker named in week one (Horizon).
DisagreementsHybrid versus vector (IQVIA Backbone) or RLS-in-database versus app-only WHERE (Ylogx backup). Then commit.

Keep straight

Tighten

Answer the why on the same story. A new internship because they asked “why” is a restart. Stop after the mechanism plus one number.

Recruiter mail versus the room

The mail or the recruiter call is not the room. Two AUTA Bar Raisers were told LP-only or given no Live Code link and still received DSA. Two other leftover hours were told LP-only and were LP. Java stays warm either way.

What they might ask

IE-asked framing class: n=2 AUTA where “no DSA” failed. Not a rate. LC 7981646 (told LLD / expected non-tech, still trees+DP) is later-slot adjacent; that body was not re-verified this pass — known-bank, not a new stamp.

What you say

If an editor opens, I restate constraints and write Java. If they stay on stories, I stay on stories.

They might ask next

If they askYou answer
7406809-shaped extra-space ban on a treeLCA plus DFS on the tree, not a parent HashMap, if they refused extra memory.
6806195-shaped mixed hourFinish the LP they are in, then switch cleanly to the array. Java.
Couple LP after code, “formality”A real mechanism — Ylogx Redis + RLS or Horizon 17th — not poster names.

Framing versus room (other loops)

LoopFramingRoom
LC 7406809 AUTA HR: only three LP questions would be asked DSA first: tree path source→target printed A/B/C (~30 min to extra-space / LCA). Then a couple LP unnamed “formality.” Selected. Candidate self-note: third did not look good.
LC 6806195 AUTA Mail did not have a Live Code link; candidate not expecting DSA ~60 min, two interviewers, 30 LP (feedback; critical issues; beyond task; follow-ups on all) + 30 DSA Count Number of Nice Subarrays (candidate linked). Selected.
Reddit 1qj304z AUTA Chennai Recruiter 31 Dec: Round 3 Bar Raiser LP only LP; two sub-questions with a repeat; ~25 min not 1 hour. No DSA named on BR. R1/R2 contents not described in the body.
LC 7623949 EU BR Format shared before the interview Matched. ~22 min LP-only. Candidate notes India BRs sometimes add DSA to fill the hour; this EU hour did not.

Keep straight

Tighten

Walk in ready for a story and for an editor. If the editor never opens, stay on stories. Chapter 2 repeats the switch.

Hiring Manager versus Bar Raiser

Hiring Manager and Bar Raiser are different labels other people used. Contents overlap: both can be LP, both can be DSA, both can mix GenAI talk with code. You do not need to classify the interviewer. You need the prompt. LC 7563011: HM was last, no BR named. LC 7850431: Round 4 heading is Behavioural.

What they might ask

IE-asked as loop shape. 7563011 interviewer: 15 years (11 at Amazon, SDM). Heading 35 minutes; body ~25 minutes of work. 8362604 BR probes on the first story: whether it was actually challenging; rate limiting decisions; geofencing; trade-offs. Independent Rate Limiter SDE I count stays 1. GFG Apr 2026 HM page heading “Common Questions” — caveat, not “I was asked.”

What you say

Situation. At IQVIA I needed retrieval that still worked when a two-hundred-page BRD and a web ranking disagreed.

Task. Compare approaches and stop on something I could fail with a test, not a fluent paragraph.

Action. I compared one scraper versus parallel tools, a linear chain versus LangGraph, vector-only versus hybrid plus GraphDB, and stuffing a two-hundred-page BRD versus retrieve-and-cite. LangSmith traces were the stop: a fluent answer with no overlapping span failed the test.

Result. Hybrid RAG on Azure AI Search with GraphDB and LangSmith. Resume has coverage (200+ page BRDs), not an IQVIA latency percent.

They might ask next

If they askYou answer
Was that actually challenging / show the failureSame IQVIA path: clause IDs, span overlap. Not a new org.
Rate limiting or geofencing on a storyTrade-off on that story if it applies. Redis at Ylogx is cache with the tenant tier in the key, not a Rate Limiter you interned.
Invent already used IQVIASimplifying a process → StratifyLabs browser inference −30% and marketplace 50+ (Invent backup).

After two lives, what they labeled next

LoopAfter two lives, next wasThen another?Leftover last named
LC 7563011 AUTA BLRHM POC/research, no DSANo BR namedHM
LC 8362604 AUTA 2026HM DSAYes BR 40 days later LPBR
LC 6806195 AUTABR LP+DSANo fourthBR was last
LC 7406809 AUTABR DSA+LP formalityNo fourthBR was last
Reddit 1qj304z AUTA ChennaiBR LP-onlyNo fourthBR was last
LC 7850431GenAI+techBehavioural (heading is not BR)Unlabeled behavioural
LC 7724048HM Gen-AIBR LPBR
TaanyaBR firstHM maps+heapsHM last
Prince Job 3057703BR after two techNo HM namedBR (not this Job ID)
LC 8430457 AUTA 2026HM Merge/Insert + GenAI agentsBR LP-onlyBR
GFG Apr 2026HM (3-round loop)No fourthHM. Page heading “Common Questions.”

Keep straight

Tighten

One complex-problem prompt is one project. Stop after traces-as-stop plus the 200+ page BRD family. Scale, if they ask, is Argus 20+ cameras after the gate, or Ylogx ALB/ECS with RLS already on.

When a later live still arrived

Several AUTA posts label Bar Raiser as Round 3 — the third live. That is hour-shape evidence, not proof this leftover hour is a Bar Raiser. A smaller set of write-ups actually had a fourth live after three already existed. Many AUTA third-was-BR loops named no fourth. LC 7563011 HM was last as a third.

What they might ask

IE-asked as timing/shape. True fourth (or fourth-ish) in the hour lock: LC 8362604 BR after a separate HM — fourth live, LP-only, full hour. Shiwangi Kumari R4 17 Dec 2024 17:00–18:00 — UTA named, not labeled BR/HM. Medium comment “no LP each round”: not re-verified (Cloudflare). LC 7623949 BR after an extra Gen AI Fluency hour. TUF: four IEs showed a true fourth as their Round 5 after OA-as-R1 (max-size subarray k; Longest Consecutive Sequence; HM no coding; behavioral).

What you say

I’ll use the full time they give me. If they say there is time left, I’m ready for another story or for an editor.

They might ask next

If they askYou answer
Shiwangi-shaped leftover code after stack talkRestate constraints, then Java. Unnamed sliding window stays unnamed.
7623949-shaped LP namesDive Deep = Ylogx Redis + RLS. Learn = IQVIA LangGraph. Earn Trust = GiftedBooks RAG + 99.5%. AegisAI README only if they are on GitHub.
TUF Round 5 analogue (true fourth)Same as any leftover: story or Java. Not a 10454435 list.

Keep straight

Tighten

If they offer remaining minutes, take the next locked story or the editor. Do not restart the first STAR.

A Fluency label can still be a tree

A slot titled GenAI Fluency is sometimes RAG talk. On at least one opened body it was Distance K with an O(n) ask and no parent mapping. If they paste a tree, the tree is the round until they ask something else. Mixed HM/Fluency hours still pasted code: Next Greater (7724048), LCA + process scheduler (8014509; scheduler wording not re-verified this pass), dynamic k-th largest (7850431).

What they might ask

LC 7623949: labeled Gen AI Fluency, actually DSA. GenAI prompt not named on that Fluency hour. BR after = LP-only ~22 min. AUTA not named (India onsite then EU BR). IE-asked. Siblings: LC 7584467 “GenAI Essential + Coding” — candidate: “just another DSA round.” LC 6461439 Interview 4: nodes at distance K + LCA, unnamed titles, fourth live, rejected. Intern Fluency LC 7643209 min-heap is not Distance K and not this leftover hour.

What you say

This is a tree walk. I’ll build neighbor links from child pointers, then BFS from the target until distance K, and return those nodes. I am not using a parent field on the node.

They might ask next

If they askYou answer
Time / spaceO(n) time, O(n) extra for the adjacency list and the BFS queue.
They still want GenAI after the codeI use models to draft; I verify with traces, tests, or a span that must overlap the source. One sentence, then stop.
They never ask GenAILeave it. No RAG lecture.

Keep straight

Tighten

Write the tree first. Chapter 2 repeats the room action. Chapter 7 is GenAI only if they still ask after the code.

Loops that are not this leftover hour

Some posts look like leftover hours and are not this loop. They sit here so they do not leak into tonight’s script. Intern Fluency, SDE II HLD, US/FTC loops, other Job IDs, year-out GFG, and Class C guides are in this bucket.

What they might ask

NMF = not this leftover default. Login Tracker (new_login / get_oldest_login) is unverified mentor prep. Rate Limiter independent SDE I live count = 1.

What you say

I answer from internships and projects I actually shipped. I do not borrow another job’s loop as my story.

They might ask next

If they askYou answer
A practice LLD from a guide appears in the editorSolve it as Standard CS. Java.
Whether you shipped a Rate Limiter at YlogxRedis there is cache with the tenant tier in the key. Independent SDE I Rate Limiter live count stays 1, not UTA-default leftover LLD.
Login TrackerUnverified. Not volunteered as this Job ID.

Out of scope for this leftover default

ClassExamplesWhy not this leftover hour
INTERNLC 7643209 Fluency min-heap; TUF intern FinalsIntern first/last live. Not SDE I leftover.
SDE II / L5 / SDE-3SDE II HLD; Dhruv Medium communication reject (5+ YOE, 4-round HLD)Wrong level. Full retail HLD is not UTA-default SDE I.
US / FTC / Canada AUTAUS 3×60; FTC 5-round; Jay Patel Canada AUTA cart/checkout + LRU-likeRegion / contract NMF for this ADCI Karnataka loop.
Other Job IDsPrince Job 3057703; Reddit 1s9z862 Job 3100855Different requisitions. Next card on 1s9z862.
Year-out GFGGFG 2020–2022 CS/BR lists; Alexa charge/battery LLD on BR (sde-1-29)Year-out unless a later dump labeled it current.
Class C guidesExponent; IGotAnOffer; mentor Login Tracker; CampusToCareer “Tech 2 = APIs/caching”Not interviewer quotes from opened leftover bodies.
DevBrainiac 4-round Integer-to-English—NMF for this leftover default.

Keep straight

Tighten

If it is not in the hour lock or a named leftover IE, it does not set tonight’s default. Solve what they paste; do not volunteer these loops.

Reddit 1s9z862 is Job 3100855

A Reddit thread that names Customer Obsession and a failure stem is easy to paste into this loop. The Job ID on that thread is not yours. Customer Obsession on leftover hours that are in-scope still maps to GiftedBooks (GFG sde-1-17 extra-for-customers), not to that Reddit job’s facts.

What they might ask

Reddit 1s9z862 = Job 3100855, not 10454435. Merge dumps 01/13: GraphQL keywords 10454435 → 0 articles. Official JD 10454435 404 this pass. LC 7441639 article content was 16 characters: “Job ID - 3100855.” Treat 1s9z862 as NMF for this booklet. “Most proud of” was not found as a BR/R4 interviewer stem in dump 07 — Ruchi FTC R2 is earlier live, freeze it out of this leftover default. Resume-derived GiftedBooks answer.

What you say

Situation. Students waited hours for a doubt on a PDF.

Task. Ground answers in the file they were reading.

Action. I built PDF-grounded Q&A so a lookup cited the page, not a fluent guess.

Result. A doubt that used to take hours became a three-to-ten-minute lookup, with sub-300 millisecond API time and 99.5 percent uptime on that product.

They might ask next

If they askYou answer
How the RAG is groundedGiftedBooks mechanisms. Stay on that product.
They open GitHub and the README says AegisAIEarn Trust: disclose the mismatch, then return to the resume product. AegisAI features stay off Customer Obsession.
Failure / most proudFailure → Argus 73% mAP gate. “Most proud of” is not a leftover default stem from dump 07.

Keep straight

Tighten

Stop after hours → 3–10 min plus sub-300 ms / 99.5%. Backup if GiftedBooks already ran: Ylogx SQL RAG +65% (Customer Obsession backup).