IDFC

Role: Not Specified (Implied Software/Application Development)

College: Not Specified

Interview Date: August 24, 2025

Interview Type: Full-Time

Result: Selected

Difficulty: Hard

Rounds: 5 rounds (Online Code-a-thon Challenge, Offline Technical Coding, Technical Interview, Managerial Round, HR Round)

Topics Asked: Coding (3 problems), Technical MCQs, DSA (arrays, linked lists, medium-level problems, follow-ups, edge cases), OOPs, SDLC, Computer Networks, DBMS, Python, AWS, System Design, Projects, Internships, ML/AI knowledge, Scalability challenges, Situational questions, Cultural alignment.

Experience:

A candidate shared their "Interview Journey with IDFC FIRST Bank" starting on August 24, 2025, describing each round as an elimination stage.

Round 1 was an Online Code-a-thon Challenge with over 30,000 participants. It involved three coding problems and multiple-choice technical questions, significantly filtering candidates.

Round 2, Offline Technical Coding, was conducted at an IDFC office. Interviewers provided a problem (e.g., calculating a library summarizer for different scenarios) on paper. Candidates had to explain their approach and then write code on a laptop for all test cases, explaining their logic. This round tested coding skills and clarity of thought, filtering half the candidates.

Round 3, Technical Interview, lasted approximately 2 hours and was described as "intense". The candidate solved three DSA problems on paper (arrays, linked lists, medium-level) with multiple follow-ups and tricky edge cases, solving over 90% of them. Questions spanned OOPs, SDLC, Computer Networks, DBMS, Python, AWS, and System Design. Some coding was done directly on the interviewer's laptop, while other questions were conceptual.

Round 4, Managerial Round, was a 15-minute discussion with the Head of Technology Towers. It covered past projects, internships, ML/AI knowledge, AWS experience, scalability challenges, and situational questions. This round assessed critical thinking, practical experience, and communication skills, as well as alignment with IDFC FIRST Bank's culture.

An HR round is typically the final stage, though not explicitly detailed in the provided snippet, the successful journey implies completion of all stages.