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Centizen Technologies Interview Preparation

Medium-Hard

IT staffing and software development · Tirunelveli

Centizen Technologies is a IT staffing and software development company hiring interns and freshers in Coimbatore, Tamil Nadu.

280+ questions4 rounds5 expert tipshttps://www.centizen.com/

About Centizen Technologies

Centizen is a staffing, custom software and SaaS product development company founded in 2003, serving clients across the US, Canada and India. It offers IT staffing, custom software development, cloud, cybersecurity and managed IT services. The company operates from multiple Indian offices including Coimbatore, Madurai, Hyderabad, Noida and Kolkata.

Interview Rounds4

1
Online Assessment60–90 min

2–3 DSA coding problems on HackerRank, CodeSignal, or company platform

2
Technical Interview I45–60 min

Data structures & algorithms — arrays, trees, graphs, dynamic programming

3
Technical Interview II45–60 min

System design or low-level design — scalability, APIs, databases

4
HR / Culture Round30 min

Career goals, teamwork, strengths/weaknesses, role expectations

Practice Questions10

Key Topics

  • Data Structures & Algorithms150q
  • System Design50q
  • Object-Oriented Design40q
  • SQL & Databases25q
  • CS Fundamentals (OS, Networking)25q

Expert Tips

  • Practice LeetCode easy and medium problems before the OA — focus on arrays, strings, trees, and graphs.
  • For system design, use the RESHADED framework: Requirements, Estimation, Storage, High-level design, APIs, Detailed design, Evaluation.
  • Prepare 3–4 STAR stories covering: a challenge you solved, a time you worked in a team, a project you owned end-to-end.
  • After every coding solution, proactively state the time and space complexity — interviewers expect it.
  • Study common CS fundamentals: process vs thread, TCP vs UDP, REST vs GraphQL, SQL indexing, CAP theorem.