Project codingLast seen Oct 2026
Complete a Journey Stage Event Service
Complete a journey service that advances users through ordered stages when qualifying events arrive.
Open practicePhonePe interview practice
PhonePe Coding Interview Questions and Algorithm Practice Start with verified evidence.
Practice from 9 PhonePe-tagged public coding problems, organized only by the stage, topic, difficulty, and recency metadata FastPrep can verify. The broader public catalog also includes 2 system-design exercises, 3 low-level-design exercises, 1 project-coding exercise.
- Catalog
- 15 public practice assets (9 coding)
- Start here
- Use the stage named in your invitation
- Evidence
- OA · Onsite metadata, shown in context
OA practice path
Online Assessment
Build a timed implementation rhythm from prompt to edge cases. Problems are ranked by repeated public catalog sightings.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
PHPhonePe | Constrained Jump SequencesDynamic ProgrammingPrefix Sum | Hard | 1 public reportLast reported Aug 2026 | Practice |
PHPhonePe | Maximum Payout with Context SwitchesArrayDynamic Programming | Hard | 1 public reportLast reported Aug 2026 | Practice |
PHPhonePe | Substrings Without a Target SubsequenceStringDynamic Programming | Medium | 1 public reportLast reported Aug 2026 | Practice |
PHPhonePe | Luna and the Colorful SocksArraySorting | Hard | 1 public reportLast reported Jul 2026 | Practice |
Onsite practice path
Onsite
Practice complete solutions and defend the choices behind them. Problems are ranked by repeated public catalog sightings.
5 PhonePe-tagged Onsite problems available.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
PHPhonePe | Evaluate DivisionGraphDepth-First Search | Medium | 1 public reportLast reported Oct 2026 | Practice |
PHPhonePe | K-th Smallest Value in a Sorted MatrixMatrixBinary Search | Medium | 1 public reportLast reported Oct 2026 | Practice |
PHPhonePe | Identify Two Failing Tests From an Oracle TranscriptArraySimulation | Medium | 1 public reportLast reported Sep 2026 | Practice |
PHPhonePe | Count Bowl SubarraysStackArray | Medium | 1 public reportLast reported Jul 2026 | Practice |
PHPhonePe | Reconstruct ItineraryGraphDepth-First Search | Hard | 1 public reportLast reported Jul 2026 | Practice |
01 · Preparation plan
Compare counting, optimization, and edge-consuming traversal.
PhonePe's public coding set supports a useful contrast between three objectives: count valid sequences, maximize a reward, and reconstruct a route using given edges. Keeping those objectives separate helps prevent the wrong recurrence or traversal. The page does not claim to teach PhonePe's payment architecture. This is a suggested practice sequence, not the employer's interview process. Your invitation and recruiter guidance remain the source of truth.
- 01
Count only legal jump histories
Use constrained jumps to define what information from the previous move affects the next choice. Prefix sums may accelerate transitions only after the recurrence is correct.
- List legal jump ranges.
- Check base cases on very short paths.
- Keep counting distinct from reachability.
- 02
Budget task days and fixed context-switch days
The sequence has a task-count cap and a total day budget. Switching between startups costs one idle day in addition to the task day; skipping a slot consumes neither and preserves the last completed startup.
- Track the last completed startup, tasks used, and days used in the decision state.
- Test zero task or day budgets and the boundary where a switch needs an extra day.
- Compare skipping, staying, and switching without introducing a variable switch-cost input.
- 03
Use each itinerary edge exactly once
Itinerary reconstruction asks for an edge-consuming route, not merely a reachable path. Duplicate tickets remain separate usable edges.
- Preserve duplicate edges.
- Follow the required lexical tie rule.
- Verify that the result uses every ticket.
02 · Broader technical practice
Practice beyond standalone coding questions.
These public PhonePe-tagged exercises cover additional technical formats. They are included only when a verified catalog record and a crawlable practice page both exist.
System designLast seen Oct 2026
Design a Feature Flag Platform
Design a versioned feature-flag control plane and a deterministic, locally evaluated snapshot path.
Open practiceLow-level designLast seen Sep 2026
Design a To-do List with External Completion Status
Design an in-memory to-do list whose reads combine stored entries with completion state from a supplied checker.
Open practiceSystem designLast seen Sep 2026
Design an Audio Fingerprint Recognition Service
Match a short noisy audio clip to a track in a pre-indexed catalog using deterministic fingerprint retrieval and verification.
Open practiceLow-level designLast seen Sep 2026
Design and Implement a To-Do Workflow Application
Build a small task application with explicit lifecycle rules, persistence boundaries, and reviewable tests.
Open practiceLow-level designLast seen Sep 2026
Design a Thread-Safe Queryable Logger Library
Model concurrent structured-log appends and filtered retrieval with stable ordering and snapshot semantics.
Open practice03 · Evidence boundary
What “PhonePe interview questions” means here.
It means practicing transferable implementation, testing, and technical reasoning with public catalog assets FastPrep tags to PhonePe. It does not mean FastPrep has access to the company's assessments or any private interview bank.
Repeated public sightings and last-reported dates can help you prioritize practice, but they cannot predict the questions, format, or platform in a specific interview.
- Only PhonePe-tagged FastPrep catalog problems appear above.
- Stage labels and report dates remain visible as context.
- No official, private, leaked, or proprietary questions are claimed.
04 · Plain answers
PhonePe interview practice questions, answered plainly.
This page owns technical-practice intent for PhonePe. Hiring activity, timelines, and market signals remain on the separate hiring-insights page.
01Does this PhonePe page cover payment-system design?
The current evidence is strongest for coding practice. Payments terminology or the company name does not establish a complete payment-system design course. Use the available exercises for algorithms and state, then add domain or design preparation only when your role requirements justify it.
02Is FastPrep affiliated with PhonePe?
No. FastPrep is an independent interview-preparation product and is not affiliated with PhonePe. The page uses FastPrep's public practice catalog and does not claim official, private, leaked, or proprietary employer questions.
03How are PhonePe problems assigned to interview stages?
Stage labels come from FastPrep's public problem metadata. A problem can carry more than one reported stage, and hiring processes can change by role, level, location, and date. Treat the labels as preparation context, not a guarantee.
04Which PhonePe interview stage should I practice first?
Start with the stage named in your invitation or recruiter message. If no stage is known, use the largest available set to build general problem-solving fluency, then rehearse explanation and testing separately.
05Does this page predict the PhonePe interview process?
No. Public catalog counts, stage tags, and last-reported dates can help prioritize practice, but they cannot predict a specific interview's questions, sequence, timing, or platform.
Your next stage, made concrete
Pick a problem. Solve it end to end.
Start with the stage named in your invitation, then use public evidence as context—not as a promise of what you will be asked.
Open the practice set