ZorixOS
2+ SmartNews questions

SmartNews interview questions and how to prepare

The questions candidates report from SmartNews interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in SmartNews's interview style.

Practice SmartNews questions free All companies

ZorixOS tracks 2 community-reported SmartNews interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 76 original ZorixOS practice questions written in SmartNews's known interview style (not claimed as asked at SmartNews), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to SmartNews.

Updated July 2026

SmartNews interview questions candidates report

Community-reported from real SmartNews interviews (open-source dataset), most-asked first. Showing 2. Each links to its source.

  1. LRU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Medium100% asked
  2. Minimum Deletions to Make Character Frequencies Unique
    Hash TableStringGreedySorting
    Medium100% asked

Practice questions in SmartNews's style

Original ZorixOS questions written the way SmartNews interviews, so you rehearse the real format. Not claimed as asked at SmartNews.

  1. Imagine SmartNews has a feature that aggregates news from over 1000 sources. Describe how you would design a system to detect and flag duplicate articles across these sources efficiently, considering a daily ingestion of millions of articles. What are the potential bottlenecks and how would you address them?

    Software EngineerSystem DesignTests: Evaluates the candidate's ability to design scalable systems, handle large data volumes, and identify potential performance issues.

  2. We are experiencing increased latency in fetching personalized news feeds for our users. Walk me through your debugging process. What tools and techniques would you use to identify the root cause, assuming the issue could be in the data fetching layer, the recommendation engine, or the API gateway?

    Software EngineerDebugging & TroubleshootingTests: Assesses problem-solving skills, systematic debugging approach, and familiarity with common performance bottlenecks.

  3. Our mobile app uses a real-time notification system to alert users about breaking news. How would you design the backend infrastructure to handle millions of concurrent connections and ensure timely delivery of notifications, considering potential network unreliability and device battery constraints?

    Software EngineerSystem DesignTests: Tests understanding of distributed systems, real-time communication, and high-throughput systems.

  4. Consider the SmartNews recommendation engine. If we want to introduce a new algorithm that prioritizes local news based on user location, how would you approach A/B testing this change to ensure it improves user engagement without negatively impacting the overall news consumption experience?

    Software EngineerAlgorithm & ReasoningTests: Probes logical thinking, understanding of algorithms, and application of testing methodologies in a practical scenario.

  5. A significant portion of our user base accesses SmartNews via low-bandwidth connections, especially in emerging markets. How would you optimize the mobile application's performance to ensure a smooth user experience, considering aspects like image loading, data caching, and API response times?

    Software EngineerPerformance OptimizationTests: Evaluates practical engineering solutions for performance bottlenecks in resource-constrained environments.

  6. The SmartNews platform aggregates news from numerous publishers. Design a system to efficiently index and search through billions of news articles, ensuring low latency for user searches. What data structures and indexing techniques would you consider?

    Software EngineerSystem DesignTests: Assesses knowledge of search infrastructure, indexing strategies, and distributed data systems.

70+ more SmartNews-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Can you answer these out loud, under SmartNews-style follow-ups?

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SmartNews Interview Questions (2026) | ZorixOS