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Backend Engineer · question 3 of 8 · 15 marks

Flag duplicate payments in a list of 10,000

42:19Submit test

solution.pyready

1def find_duplicates(payments):

2 seen, dupes = set(), []

3 for p in payments:

4 if p.ref in seen: dupes.append(p)

5 seen.add(p.ref)

6 return dupes

Test cases0 of 4 passed

catches a repeated reference

leaves single charges alone

10,000 rows in one pass

handles an empty list

Ran in 0.04s on 10,000 rows

How they solved it

Used a hash set, so the whole list is checked in one pass. A brute-force loop would have timed out at this size. Edge cases covered.

Correctness

Approach

Efficiency

0 / 15

you can change it

A coding test: the tests it passed, how fast it ran, and the AI’s read on the approach · sample data

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Test Agent · building a test for Design Verification Engineer

1

Job description

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We are hiring a verification engineer to build UVM testbenches for our PCIe subsystem. You will write SystemVerilog assertions, debug failures in waveforms and automate regressions in Python. You will work with RTL designers to close coverage before tape-out, and review testbench architecture for new blocks.

0 phrases matched to skills

2

Skills

Waiting
  • UVM0%

    “UVM testbenches”

  • Assertions (SVA)0%

    “SystemVerilog assertions”

  • Waveform debugging0%

    “debug failures in waveforms”

  • Python automation0%

    “automate regressions in Python”

  • Testbench architecture0%

    “testbench architecture”

+ Add or remove a skill

3

Blueprint

Waiting

0

Questions

0

Minutes

0

Marks

  • UVM & SystemVerilogMCQMedium×10
  • Assertions (SVA)Subjective· AI-evaluatedHard×2
  • Waveform debuggingMCAMedium×4
  • Python automationCodingMedium×1
  • Testbench architectureDiagramMedium×1
4

Questions

Waiting
  • MCQMedium Writing

    Which UVM phase builds the component hierarchy, and does it run top-down or bottom-up?

  • SubjectiveHard Writing

    Write an SVA property: every req is followed by ack within 1 to 4 clock cycles.

  • CodingMedium Writing

    Parse a regression log in Python and list each failing test with its seed.

3 of 18 shown · regenerate any question you don’t like

Test ready for your review18 questions · 75 min · 77 marks

Test Agent is reading DV_Engineer_JD.pdf

Test Agent · building a test for Design Verification Engineer

1

Job description

Uploading
Upload PDFPaste text
PDFDV_Engineer_JD.pdf0%

We are hiring a verification engineer to build UVM testbenches for our PCIe subsystem. You will write SystemVerilog assertions, debug failures in waveforms and automate regressions in Python. You will work with RTL designers to close coverage before tape-out, and review testbench architecture for new blocks.

0 phrases matched to skills

Test Agent is reading DV_Engineer_JD.pdf

Assessments

Test the skills the job actually needs.

Whatever the role runs on — code, silicon, a support queue or a sales call — the test is built from the work itself.

Code & build

Not just a coding puzzle. Candidates write and run real code in the browser, query a real database, and are scored against test cases you set.

  • Data structures & algorithms
  • Full-stack and multi-file projects
  • SQL on a live database
  • Debugging and code correction
  • Test-case and approach-based scoring

Front-end Engineer · question 4 of 18

Built from the job description

34:20Submit test
Coding · 10 languages15 marks

Build a searchable product catalogue across three files. It must filter as the user types.

Explorer

src

components

ProductCard.tsx

SearchBar.tsx

hooks

useDebounce.ts

Catalog.tsx

types.ts

Catalog.tsxSearchBar.tsx▶ Run tests

1import { useMemo, useState } from "react";

2import { SearchBar } from "./components/SearchBar";

3import { useDebounce } from "./hooks/useDebounce";

4

5export default function Catalog() {

6 const [query, setQuery] = useState("");

7 const [category, setCategory] = useState("All");

8 const search = useDebounce(query, 250);

9

10 // filter once per change, not on every render

11 const visible = useMemo(() => {

12 const term = search.trim().toLowerCase();

13 return PRODUCTS.filter((p) =>

UnsavedReact 18Ln 1src/Catalog.tsx

Live preview running

Products

Search productsAllAudioWearables

6 results

Aria Wireless HeadphonesAudio$129Pulse Smart WatchWearables$199

Tests0 / 6Console0 / 15 marksnot run yet

renders every product as a card8ms··/3

filters by name, case-insensitively12ms··/3

debounces the search by 250 ms31ms··/2

category chips filter the grid9ms··/3

result count matches the cards6ms··/2

empty state when nothing matches5ms··/2

Similarity 4%no match in your question librarytyped over 14 min · no paste events

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Backend Engineer · first-round interview

  1. 1Plan
  2. 2Interview
  3. 3Verdict
  4. 4Evidence
Recording

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The plan is yours before anyone is invited. Change a topic, push one deeper, or drop it.

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Weighted to the role · edit, reorder or drop any topic

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  • Recording, transcript and scored competencies

More on AI Interviewer

CheqMate AI · assessment integrity

See what ordinary proctoring misses.

CheqMate AI watches beyond the browser — screen, webcam, device-level signals and TriNetra's second camera — and turns them into one evidence-backed view of every assessment.

ScreenTab switches, window focus, screen evidence
WebcamPresence, absence and who else is there
DeviceA locked test window, watched for what else runs
TriNetraA second camera on the desk and the room

CheqMate AI

Reads all four together, flags what matters, and keeps the evidence for every flag.

One session. Two ways of watching it.

The same 70-minute test, seen by a browser-only proctor and by CheqMate AI.

  • Candidate left the frameWebcam
  • Window switched mid-questionScreen
  • Phone used below the deskTriNetra
  • Second person beside the candidateTriNetra
  • Another application left runningDevice

5 of 5 events detected

Every flagged event comes with the screen, video or device evidence behind it.

talentdecrypt.com/proctoring

Rohan Mehta

Backend Engineer test · question 12 of 18 · 00:49:51

ID verified by greeterCheqMate AI on
Face detected
Webcam
Screen
2 people
Phone

Session timeline · select a flag

00:49:51 / 01:10:00

Someone entered the room and stood beside the desk. Only the phone camera could see them.

Sample session. Select any flag to see it.

TriNetra

A second set of eyes on the room.

The candidate scans a QR code and their own phone becomes a second camera, placed to one side. It sees the desk, the laptop, their hands and whoever else is in the room — everything a laptop webcam points away from.

Face detected
Laptop webcam
Second person in the room
TriNetra · phone camera

One timeline. Every signal.

Review the exact screen, video or device evidence behind each flag, tied to the question the candidate was on — instead of trusting a black-box integrity score.

00:12:40Window lost focus for 3 secondsScreenQ4Evidence →
00:27:08Candidate looked off-screen repeatedlyWebcamQ9Evidence →
00:41:19Second person seen beside the deskTriNetraQ12Evidence →
00:52:44Another application left runningDeviceQ14Evidence →

Sample session · every flag keeps its recording, snapshot or log

That evidence sits inside a platform audited by independent assessors. What we record, and who sees it

  • ISO/IEC 27001
  • ISO 9001
  • SOC 2
The decision

It all lands on one scorecard.

Skills, spoken answers, the interview and the integrity record, in one place — with every score linked to the answer it came from.

Tests / Backend Engineer, hiring assessment / Sneha Menon

Sneha Menon

Backend Engineer

Finished

0

OVERALL SCORE

0 / 100

Strong result

PERCENTILE

0th

Rank 13 of 214 candidates

AI insight · TalentDecrypt AI RecommendedTop 6% of 214 candidates · clean integrity record

Strong in API design & SQLBoth coding problems solvedFinished 11 min earlyNo integrity flags

OVERALL

0/100

+26 vs cohort

ACCURACY

0%

11 of 12 correct

TIME USED

0/75 min

Finished 11 min early

INTEGRITY

Clean

0 flags, 3 feeds

Skill analysis

Sneha Cohort average

Sample data

  • Every score links to the answer behind it
  • An integrity record with snapshots and flags
  • An AI summary written from real results
  • A communication profile for spoken answers

More on Candidate Scorecards

Arun applied on Tuesday. You decided on Thursday.

Seven worth interviewing, ranked on what they can actually do. You read seven scorecards, not 214 CVs.

214still in the running

Your shortlist

7 of 214 · ranked

  • 1Arun Shetty0
  • 2Dev Sharma0
  • 3Ananya Bose0

+4 more scored above 75, each with the evidence behind it

  1. AppliedTue
  2. AssessedTue
  3. InterviewedWed
  4. DecidedThu

Sample data. Your timeline depends on how quickly candidates take the test.

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