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Upload your resume, pick your target company and role, and choose from 10 interview types. The AI interviewer asks role-specific questions via voice, listens to your answers, asks follow-up questions, and delivers scored feedback after each session.

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10 types: Behavioral, Technical, Strategic, Case Study, Campus Placement, HR Round, Panel, Management, Salary Negotiation, and Government/PSU. Each with 3 difficulty levels and mini or full session options.

Can I practice for specific companies like TCS, Infosys, or Google?

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What is the recruitment process at Nium?

The typical Nium recruitment process has 4 stages: Apply via Nium careers page, referral, or recruiter outreach → Online DSA coding assessment or a take-home task → Two technical rounds on DSA, backend depth, and system design → Hiring manager and behavioural round on ownership and payments domain.

What are the interview rounds at Nium?

Nium typically conducts 3 interview rounds: Round 1 - Coding Assessment (75 to 90 min): Two DSA problems on arrays, strings, hashing, and trees, sometimes a small backend take-home task.; Round 2 - Technical Interview (60 min): DSA with optimisation, core Java or Go, concurrency, SQL and data modelling, and REST or event-driven API design.; Round 3 - System Design and HM (60 min): Design a payments, wallet, or reconciliation service covering idempotency, consistency, scaling, and reliability, followed by behavioural questions..

What design questions does Nium ask?

Common prompts include designing a wallet or ledger service, an FX-conversion flow, a payout reconciliation system, or an idempotent money-transfer API, with focus on consistency and failure handling.

Which languages does Nium interview in?

Java is the primary backend language, with Go and Kotlin on some teams. You can typically solve DSA in Java, Go, C-Sharp, or Python.

What is the Nium India SWE salary range?

Mid-level engineers usually get 18 to 32 LPA; senior and lead roles range from 35 to 60 LPA, often including ESOPs.

← All companies·Nium·System Design

Nium Software Engineer Interview Questions India 2026

Nium runs a global cross-border payments and card-issuance platform from its India engineering hubs, so interviews emphasise distributed systems, money movement, and correctness under concurrency.

Practice with AI voice feedback 12 questions · System Design · 2 sessions free

About Nium

Nium is a Singapore-headquartered global B2B payments unicorn with major engineering in Bengaluru. It provides cross-border payments, card issuance, and embedded finance APIs to fintechs and banks globally.

Products: Nium Global Payments (send/receive in 220 countries) · Nium Card Issuance API · Nium Compliance Cloud · Nium Banking-as-a-Service
Competitors: Stripe (Treasury) · Wise Business · Currencycloud (Visa) · Payoneer
Scale: ~1,200 employees. Singapore HQ, Bengaluru engineering hub. Raised $300M+ at $2.1B valuation.

Nium recruitment process

01
Apply via Nium careers page, referral, or recruiter outreach
02
Online DSA coding assessment or a take-home task
03
Two technical rounds on DSA, backend depth, and system design
04
Hiring manager and behavioural round on ownership and payments domain

What to expect in each round

01
Round 1 - Coding Assessment (75 to 90 min)
Two DSA problems on arrays, strings, hashing, and trees, sometimes a small backend take-home task.
02
Round 2 - Technical Interview (60 min)
DSA with optimisation, core Java or Go, concurrency, SQL and data modelling, and REST or event-driven API design.
03
Round 3 - System Design and HM (60 min)
Design a payments, wallet, or reconciliation service covering idempotency, consistency, scaling, and reliability, followed by behavioural questions.

System Design questions Nium asked

Sourced from 2+ candidate post-mortems. Hit Practice to answer any one with AI voice feedback.

01
Hard
Design a system to predict same-day delivery feasibility for a new pincode in tier-3 India.
Practice free →
02
Hard
We're seeing UPI failure rates spike at 9pm on weekends. How would you debug, and what's your hypothesis?
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03
Hard
Walk me through how you'd build idempotency into a payment retry system. What happens if the network drops mid-callback?
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04
Hard
Design Swiggy Genie's matching algorithm. How does it differ from food-order matching?
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05
Hard
Walk me through how you'd architect transaction-level fraud detection for 100M daily UPI transactions.
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06
Medium
How would you build a recommendation engine that suggests bills the user is about to forget?
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07
Medium
Design a cashback-allocation system that prevents abuse without alienating genuine users.
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08
Hard
Design a system to detect duplicate documents at web scale. What's your approximation strategy?
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09
Hard
Design Amazon Prime's recommendation engine. How would you handle the cold-start for a new Prime member?
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10
Medium
Design a URL shortener like bit.ly. Walk me through database choice and scaling.
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11
Hard
Design Instagram's news feed ranking. How do you handle a celebrity who posts 50 times an hour?
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12
Hard
Design Amazon's order tracking notification system. Optimise for cost at 100M orders/day.
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7 more questions. Sign up to unlock all

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Answer framework

REMIT

Reconciliation and consistency, Event-driven design, Money movement idempotency, Integration with rails and PSPs, Throughput and reliability

Interview rounds3

DifficultyHard

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