Visa HackerRank Online Assessment: 2-4 Problems, 60-90 Min (Reported)

Visa HackerRank online assessment: the reported 2-4 coding problems in 60-90 minutes, topics, proctoring, red flags, example questions and a 3-day prep plan.

By OphyAI Team • • Updated October 18, 2026 • 1244 words

Last updated: October 2026

Quick Answer

The Visa HackerRank online assessment is a timed coding test sent to many software engineering candidates after the recruiter screen: candidates most often report two to four problems, usually three, at LeetCode easy to medium difficulty, in about 60-90 minutes. Some recent reports describe CodeSignal instead, and some proctoring. Drill timed sets in OphyAI Coding Interview and practice explaining your solutions in OphyAI Interview Practice for the rounds that follow.

PartWhat candidates report
PlatformHackerRank for most reports; CodeSignal in some 2025-2026 reports
Problems2-4, most often 3 (for example two easy and one medium)
TimeAbout 60-90 minutes; your invitation states the real limit
TopicsArrays, strings, hash maps, graphs, trees, sliding window, some dynamic programming
SupervisionSome 2026 reports describe a proctored test
Next stepA data structures and algorithms video round

What Visa Is Testing in This Round

The assessment is a filter for fundamentals under a clock, not the round where Visa differentiates candidates; the Visa interview guide explains that the design round carries more weight. It checks whether you can turn a plain problem statement into correct code fast; hidden test cases do the grading.

Red flags that fail candidates:

  • Passing the sample input but failing empty, single-element, duplicate or very large inputs.
  • A brute-force solution that times out on the hidden large cases when an O(n) or O(n log n) approach exists.
  • Sinking the whole session into the hardest problem and leaving the easy ones unsubmitted.

What to Expect

Visa does not publish the assessment format. Everything below about the test is candidate-reported.

  • When it arrives. After the recruiter screen, often as a link with a window of several days. One 2026 report describes a one-week window to complete it.
  • Shape. Older HackerRank reports (2020-2023) describe two problems in 60 minutes. A 2026 Foster City report describes three HackerRank problems, two easy and one medium, in about an hour and a half. A 2026 Warsaw report describes CodeSignal, four problems in 70 minutes.
  • Variants. Some candidates report Python and SQL questions instead.
  • Proctoring. Some 2026 candidates say their test was proctored. HackerRank’s own support pages describe optional modes that employers switch on per test: Secure Mode enforces full screen, blocks copy and paste and alerts on tab switches, and Proctor Mode can add webcam monitoring and screenshot analysis. Read your invitation for which apply.

Example Questions and How to Answer Them

These are reported themes, not leaked questions.

1. A hash map counting problem

Several reports name hash map problems. Approach: Ask what a duplicate, a negative value or an empty input means. Count in one pass, then answer from the map.

2. A sliding window over an array or string

Reported in candidate posts and listed in the hub. Approach: Name the window condition (at most k distinct, sum below a target), grow the right edge, shrink the left while the condition breaks, and track the best answer at each step.

3. A graph or tree traversal

Graphs and trees appear in several reports. Approach: Build an adjacency list, pick BFS for shortest steps or DFS for connectivity, and keep a visited set. Check disconnected components.

4. A ranking simulation

One candidate recalled a round-robin product ranking problem. Approach: Simulate exactly as stated, use a heap if ranking repeats, and trace the sample by hand.

5. A medium dynamic programming problem

Some reports, especially older ones, include one. Approach: Define the state in one sentence, write the recurrence, then the base cases. A memoized recursion that passes most cases beats an unfinished table.

How to Prepare in 3 Days

  • Day 1: patterns. Four or five problems each on hash maps, sliding window and BFS/DFS. Our coding interview examples and solutions has sets to start from.
  • Day 2: timed sets. Two sittings of three problems in 75 minutes, in a HackerRank-style editor with no autocomplete you rely on. Scan all problems first, solve the easiest first, and keep 10 minutes to re-test. On Premium, OphyAI Coding Interview is useful for reviewing the approach on any problem you missed, after the timer stops.
  • Day 3: logistics and the next round. Check the invitation for the time limit, languages and proctoring settings, and test your webcam if it is required. Then run a technical mock in OphyAI Interview Practice so you can explain the same solutions aloud in the DSA round that follows.

Start practicing →

Common Mistakes

  • Ignoring the rules in the invitation. If Secure Mode or Proctor Mode is on, leaving the tab or pasting code is logged for the recruiter.
  • Using AI during the test. We found no published Visa policy on candidate AI use, but a proctored assessment is meant to measure your own work, so use OphyAI to prepare, not during the test. See our tracker of companies that allow AI in interviews.

Frequently Asked Questions

How many questions are on the Visa HackerRank assessment?

Candidates most often report three, and the range across reports is two to four. Visa does not publish a fixed count, so read your invitation, which normally states the number of questions and the time limit before you start the test.

How long is the Visa online assessment?

Reports put it at about 60-90 minutes in total. One 2026 Foster City report describes about an hour and a half for three problems. Treat 60-90 minutes as a planning figure and rely on the limit stated in your own invitation.

Is the Visa HackerRank test proctored?

Some 2026 candidates say it was. HackerRank lets each employer choose settings per test, from Secure Mode (full screen, no copy and paste, tab-switch alerts) to Proctor Mode with webcam and screenshot checks. Your invitation and the pre-test screens say which apply, so check them and set up your webcam beforehand.

Does Visa use HackerRank or CodeSignal?

Both appear in candidate reports. Most US reports describe HackerRank, and some 2025-2026 reports, including ones from Bangalore and Warsaw, describe a CodeSignal coding assessment. The platform can differ by team, location and year, and the preparation is the same either way.

What happens after the Visa online assessment?

Candidates who pass report a data structures and algorithms video round, then a low-level or system design round, then a hiring manager round built on Visa’s four leadership principles. The Visa system design interview guide covers the design round, and the hub covers the full four-to-six-week reported timeline.

Sources and verification notes

Checked October 2026. Fetches of Glassdoor and HackerRank’s support site failed from this environment (DNS errors), so every source below was read through search summaries; pages not opened. Visa does not publish its assessment format, so all format details are candidate-reported.

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Visa interview Visa HackerRank online assessment coding assessment fintech interview US

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