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Postman Interview Preparation

Medium-Hard

Developer Tools / API Platform Software · Bengaluru

Postman is hiring on MyInternships.in. Explore open roles, required skills and apply.

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

About Postman

Postman is the world's leading API platform, used by millions of developers and a large share of the Fortune 500 to build, test, document, monitor and collaborate on APIs. The platform brings the entire API lifecycle into a single, collaborative environment, helping individuals and teams design APIs, send requests, write tests, mock servers, generate documentation and monitor performance. Postman was founded in Bengaluru, India, and has since grown into a global company headquartered in San Francisco, with a major engineering presence still in Bengaluru and distributed team members across several continents. Its Bengaluru office, located on 100 Feet Road in Indiranagar, is one of the company's largest and a key hub for product and engineering work. Postman's mission centres on simplifying and accelerating API-first development, and the company has become a foundational tool in modern software workflows, with a developer community spanning startups, enterprises and individual contributors worldwide. The engineering organisation works across areas such as the core platform, collaboration features, cloud infrastructure, identity and access management, messaging, product trust and AI-driven capabilities, building web-based products with high-level languages including JavaScript, with backend services frequently powered by Node.js. As a developer-tools company, Postman places a strong emphasis on engineering quality, testing, performance and the developer experience, both for its users and within its own teams. The company offers a collaborative, fast-moving culture and invests in early-career talent through internships that report to engineering managers and provide meaningful, hands-on work. Postman manages its recruitment, including engineering and internship roles in Bengaluru, through its official careers board hosted on the Greenhouse applicant tracking system.

Bengaluru

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.