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Roku Interview Preparation

Medium-Hard

Technology · India

With the #1 platform for streaming television in the U.S., Canada & Mexico, Roku wants to revolutionize the way the world watches TV. With seamless integration of hardware and software, our Roku-branded TVs, Roku TV™ models, streaming players, audio equipment, and purpose-built operating system can transform any home into a home theater. Join us and you'll have the chance to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines. Our passion for innovation and problem-solving, combined with our love of great content, drives us to make TV watching easier, more accessible, and more enjoyable for everyone. As a company, we believe that there's immense value waiting to be unlocked in the TV industry, and we're dedicated to leading the way. As a Roku employee, you'll be part of a team that is revolutionizing the TV experience and making the lives of billions more entertaining, informative, and fun. At Roku, you'll have the opportunity to make a valued contribution from day one. Every team member plays an important role in our success. We are dynamic individuals with diverse skills and perspectives, all working together to achieve our goal of powering every television on the globe. At Roku, we host a variety of University engagements, establish global campus relations, and offer an exceptional internship program: Rising Streamers. We are dedicated to empowering aspiring individuals like you to shape the future of TV. Join us and be part of an exciting journey where your potential meets endless possibilities. Our employees grow and collaborate with colleagues, partners, and clients from diverse backgrounds around the world. In addition to our brand-new HQ in San Jose, CA, we have offices in major cities across the U.S., including Santa Monica, Austin, and New York, as well as offices in South America, Europe, and Asia. Each location offers a blend of Roku culture and local flavor, creating a dynamic and exciting work environment. Accommodations Roku welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please refer to the job posting(s) of interest for information on where to direct your inquiries. At Roku, as problem-solvers and innovators at our core, we believe great ideas get stronger through smart tools, sharp thinking, and real human judgment. That includes using AI. We know that Generative AI can be a valuable tool throughout the application pr

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

About Roku

With the #1 platform for streaming television in the U.S., Canada & Mexico, Roku wants to revolutionize the way the world watches TV. With seamless integration of hardware and software, our Roku-branded TVs, Roku TV™ models, streaming players, audio equipment, and purpose-built operating system can transform any home into a home theater. Join us and you'll have the chance to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines. Our passion for innovation and problem-solving, combined with our love of great content, drives us to make TV watching easier, more accessible, and more enjoyable for everyone. As a company, we believe that there's immense value waiting to be unlocked in the TV industry, and we're dedicated to leading the way. As a Roku employee, you'll be part of a team that is revolutionizing the TV experience and making the lives of billions more entertaining, informative, and fun. At Roku, you'll have the opportunity to make a valued contribution from day one. Every team member plays an important role in our success. We are dynamic individuals with diverse skills and perspectives, all working together to achieve our goal of powering every television on the globe. At Roku, we host a variety of University engagements, establish global campus relations, and offer an exceptional internship program: Rising Streamers. We are dedicated to empowering aspiring individuals like you to shape the future of TV. Join us and be part of an exciting journey where your potential meets endless possibilities. Our employees grow and collaborate with colleagues, partners, and clients from diverse backgrounds around the world. In addition to our brand-new HQ in San Jose, CA, we have offices in major cities across the U.S., including Santa Monica, Austin, and New York, as well as offices in South America, Europe, and Asia. Each location offers a blend of Roku culture and local flavor, creating a dynamic and exciting work environment. Accommodations Roku welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please refer to the job posting(s) of interest for information on where to direct your inquiries. At Roku, as problem-solvers and innovators at our core, we believe great ideas get stronger through smart tools, sharp thinking, and real human judgment. That includes using AI. We know that Generative AI can be a valuable tool throughout the application pr

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.