# HackerRank

> HackerRank is a technical skills platform that helps companies screen, interview, and hire developers based on what they can actually build rather than what their resume claims. Founded in 2009 by Vivek Ravisankar and Hari Karunanidhi, the company runs a two-sided model: a community where millions of developers practice coding challenges, and an enterprise product that lets 3,000+ companies - including a large share of the Fortune 100 - assess candidates with real-world coding tests, live pair-programming interviews, and, increasingly, AI-assisted evaluation and proctoring.

- **Founded:** 2009
- **Headquarters:** Mountain View, California, United States
- **Founders:** Vivek Ravisankar (Co-founder & CEO), Harishankaran Karunanidhi (Co-founder & CTO)
- **Team size:** ~360-1,000+ employees (estimates vary by source)
- **Products:** HackerRank for Work, Coding Tests / Screen, CodePair Interviews, HackerRank Community, AI Add-on
- **Notable:** First Indian startup accepted into Y Combinator (Summer 2011)., Grew to 3,000+ enterprise customers, including much of the Fortune 100., Reaches 40%+ of developers worldwide through its community and challenges.

## Products & services

- **HackerRank for Work** — Enterprise subscription platform to source, screen, and hire technical talent using standardized coding assessments and analytics.
- **Coding Tests / Screen** — Automated, role-based technical assessments with real-world questions, scored and benchmarked across a large candidate pool.
- **CodePair Interviews** — Live, collaborative in-browser pair-programming interviews with a shared IDE for remote technical interviewing.
- **HackerRank Community** — Free practice challenges, competitions, and skill certifications used by millions of developers to learn and get ranked.
- **AI Add-on** — AI features including proctor mode, screen-to-interview ID matching, plagiarism/AI-usage detection, AI-assisted IDE, and scorecard assist.

## Achievements

- First Indian startup accepted into Y Combinator (Summer 2011).
- Grew to 3,000+ enterprise customers, including much of the Fortune 100.
- Reaches 40%+ of developers worldwide through its community and challenges.
- Acquired Mimir (2019) to expand into computer-science education.
- Ran 32% more technical interviews year-over-year amid the shift to real-time technical hiring.

## Latest updates

- **2024** — Launched an AI Add-on with proctor mode, ID matching, AI-usage/plagiarism detection, and advanced evaluation beyond code correctness.
- **2026-01** — Positioned itself for 'the agentic era' of hiring, publishing guidance on AI-assisted coding interviews and how recruiters should evaluate AI-augmented candidates.
- **2022-03** — Raised a $60M Series D led by Susquehanna Growth Equity.

## Links

- Website: https://www.hackerrank.com
- LinkedIn: https://www.linkedin.com/company/hackerrank
- Twitter/X: https://twitter.com/hackerrank
- GitHub: https://github.com/hackerrank
- YouTube: https://www.youtube.com/user/HackerRankOfficial
- Instagram: https://www.instagram.com/hackerrank/
- Facebook: https://www.facebook.com/hackerrank/

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Profile page: https://yespress.io/hackerrank
Published by YesPress — https://yespress.io
Last updated: 2026-07-11