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Rejected

Sr. Software Engineer at BloomBerg

Difficulty
Process took
2-3 Weeks
Rounds
2
Format
Remote
Applied via
Referral

How it went

  • Practice system design with a timer.

What they would tell you

  • Practice system design with a timer.

How to prepare

Clear LLD patterns What to focus on: Medium-level problems Practice Common patterns:

  • Library systems
  • Rate limiters
  • Parking lots
  • Booking/reservation systems

Round by round

  1. 1

    Coding round60 min

    Began with resume deep-dive and discussion of past technical projects. Coding Question 1: A variation of the classic Trapping Rain Water problem Coding Question 2: Object-Oriented Design for a library checkout system

  2. 2

    LLD Round60 min

    The second round started with some discussion about my previous experience with distributed systems and handling higher traffic. After that, the interviewer gave me the main design prompt, design an event tracking and analytics system similar to what segment I walked through the core flow:

    • clients sending lightweight analytics events
    • an ingestion API that can absorb sudden traffic spikes
    • batching + a queueing layer (Kafka-style)
    • a worker pipeline for transformation and enrichment
    • storage options for raw vs aggregated events
    • query patterns for dashboards and funnel analysis Unfortunately, I didn’t move on to the next rounds.

What came up

MediumRemote4 5 years

A candidate-reported account, lightly edited. Interview processes change by team and date.

Sources

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