Is HireStepX free to use?

Yes. Start with 2 full AI mock interviews, complete with real-time feedback, scores, and detailed performance reports. No credit card required.

How does the AI mock interview work?

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.

What types of interviews can I practice?

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?

Yes. We support 200+ target companies including Google, Amazon, TCS, Infosys, Flipkart, Razorpay, McKinsey, Deloitte, and more, each with distinct interview patterns.

How is this different from ChatGPT or practicing with friends?

ChatGPT is text-only with no voice, no scoring, no resume integration, and no progress tracking. HireStepX is a purpose-built interview simulator: voice-based, resume-personalized, with detailed analytics.

Is my interview data private and secure?

Yes. Data is encrypted via Supabase with row-level security. Recordings and transcripts are never shared with employers or third parties. Delete everything anytime from Settings.

Does HireStepX work on mobile?

Yes, on any modern browser. For the best experience during mock interviews, use a laptop or desktop with a microphone.

How much does it cost compared to a career coach?

A single coaching session typically costs ₹3,000-10,000. HireStepX is ₹9 per session or ₹39/month for 5 sessions (Sprint Pack) with full AI coaching and analytics, available 24/7.

What is the recruitment process at Truecaller?

The typical Truecaller recruitment process has 5 stages: Apply via Truecaller careers page or LinkedIn → Online coding assessment or recruiter phone screen → Technical interview loop: 1-2 DSA rounds and a system design round → Hiring manager discussion covering projects, culture fit, and role alignment → HR round with offer and compensation negotiation.

What are the interview rounds at Truecaller?

Truecaller typically conducts 4 interview rounds: Coding Assessment (60-90 min): 2 DSA problems; medium difficulty with a focus on hash maps, graphs, and string processing.; Technical Round 1 (60 min): DSA problem-solving plus deep discussion on time and space complexity; may include concurrency or OS fundamentals.; Technical Round 2 / System Design (60 min): design a caller-ID lookup system, spam-detection pipeline, or similar at global scale.; Hiring Manager Round (45 min): past experience, motivation, and team collaboration; collaborative in tone rather than evaluative..

What framework should I use for Truecaller technical interviews?

HireStepX recommends the Lookup-latency first framework for this type of interview: Estimate QPS → identify hot-path data structures → caching layer → consistency model → spam-signal ingestion pipeline.

What system design topics come up at Truecaller interviews?

Caller-ID lookup at scale, distributed spam detection, phone number graph storage, real-time blocking lists, and notification delivery. Probabilistic data structures like Bloom filters are frequently discussed.

How many interview rounds does Truecaller have?

Typically 3-4 rounds: one online assessment or phone screen, one to two technical rounds covering DSA and system design, and a hiring manager round. The process is faster than FAANG loops.

What compensation does Truecaller offer SWEs in India?

SDE-2 at Truecaller Bangalore ranges from approximately ₹25-45 LPA total compensation including ESOPs in 2026. Numbers vary with level and negotiation; verify via Glassdoor or AmbitionBox.

← All companies·Truecaller·Technical

Truecaller Software Engineer Interview Questions India 2026

Truecaller's Bangalore engineering team builds one of the world's largest spam-detection and caller-ID systems, handling billions of lookups daily with sub-100ms latency requirements.

Practice with AI voice feedback 12 questions · Technical · 2 sessions free

About Truecaller

Truecaller is a Stockholm-listed caller ID and spam detection app with 360M+ users in India. Bengaluru is the primary engineering centre. Also offers Truecaller Pay (UPI) and business calling (Verified Business Caller).

Products: Truecaller (caller ID + spam detection) · Truecaller Pay (UPI payments) · Truecaller Business (verified calls) · Truecaller AI (spam detection ML)
Competitors: Google Phone app · Jio Phone Manager · TRAI DND app
Scale: ~800 employees. Stockholm HQ, Bengaluru engineering. TRUE listed Nasdaq Stockholm. MAU 360M+ in India.

Truecaller recruitment process

01
Apply via Truecaller careers page or LinkedIn
02
Online coding assessment or recruiter phone screen
03
Technical interview loop: 1-2 DSA rounds and a system design round
04
Hiring manager discussion covering projects, culture fit, and role alignment
05
HR round with offer and compensation negotiation

What to expect in each round

01
Coding Assessment (60-90 min)
2 DSA problems; medium difficulty with a focus on hash maps, graphs, and string processing.
02
Technical Round 1 (60 min)
DSA problem-solving plus deep discussion on time and space complexity; may include concurrency or OS fundamentals.
03
Technical Round 2 / System Design (60 min)
design a caller-ID lookup system, spam-detection pipeline, or similar at global scale.
04
Hiring Manager Round (45 min)
past experience, motivation, and team collaboration; collaborative in tone rather than evaluative.

Technical questions Truecaller asked

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

01
Medium
Reverse a linked list in O(1) extra space. Then explain when you'd use this in production.
Practice free →
02
Easy
What is the difference between a class and an object? Give an example.
Practice free →
03
Easy
Write a SQL query to find the second-highest salary in a department.
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04
Easy
What is normalisation in databases? When would you de-normalise?
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05
Easy
What's the difference between a stack and a queue? Give a real-world use case for each.
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06
Hard
Given a stream of integers, design a data structure that returns the median in O(log n).
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07
Medium
You have a service that's slow only on Tuesdays. Walk me through how you'd debug.
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08
Hard
Here's 200 lines of payment-processing code with several intentional bugs. Find them and explain the production impact of each.
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09
Medium
Explain webhooks vs. polling for a developer who has never built a payment integration. You have 4 sentences.
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10
Hard
Walk me through Razorpay's fraud-detection model. How would you reduce false positives without increasing chargeback losses?
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11
Medium
We see UPI failure rates spike at 9pm on weekends. How would you debug and what's your hypothesis?
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12
Easy
What's 54% of 110? You have 10 seconds.
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Answer framework

Lookup-latency first

Estimate QPS → identify hot-path data structures → caching layer → consistency model → spam-signal ingestion pipeline.

Interview rounds4

DifficultyEasy

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