HackerRank Tech Stack

Developer skills assessment platform for technical hiring at scale

Software Development Cupertino, California 201–500 employees Founded 2012 Privately Held

HackerRank operates a technical hiring platform used by 2500+ companies to evaluate developer talent. The stack is modern and polyglot (TypeScript, Node.js, Python, React, SQL) layered on AWS and GCP, with active adoption of OAuth 2.0, OpenID Connect, and RAG — indicating movement toward federated identity and AI-augmented assessment. The hiring mix skews engineering-heavy (18 engineers vs. 9 sales), paired with active projects around API platform scaling and high-concurrency integrity solutions, suggesting the product is shifting from simple coding challenges toward a more complex, distributed hiring infrastructure.

Tech Stack 76 technologies

Core StackTypeScript Node.js Nest.js AWS Temporal GitHub Copilot Cursor Slack Zoom Ruby React AWS Lambda Postman Python New Relic Okta GraphQL ChatGPT SQL REST API Insomnia cURL Visual Studio Code IntelliJ IDEA PyCharm GCP SAML OIDC SCIM REST+41 more

AdoptingRAG OAuth 2.0 OpenID Connect

What HackerRank Is Building

◆Challenges

Speed & quality tradeoff
Shipping faster while maintaining quality
Complex system integration
Improving hiring quality
High-severity customer incidents
Reliability issues
Friction in platform
Preventing misuse of online assessments
Scaling integrity solutions for high concurrency
Platform utilization optimization

▲Active Projects

Customer pilots and demos
Scalable frontend components
Global network of experts for coding challenges
Integrity solutions platform
Customer health management
Account strategy development
Book of business strategy
High-scale resilient integrations
Cross-functional solution shaping
Api platform scaling

Hiring Activity

Steady50 roles · 15 in 30d

Department

Engineering

Sales

Product

Support

Marketing

Security

Data

Seniority

Senior

Manager

Mid

Director

Junior

Lead

Principal

Intern

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About HackerRank

HackerRank is a technical hiring platform that allows companies to assess developer skills objectively across the full recruiting pipeline — from initial screening through final evaluation. The platform supports 2500+ global customers and operates with a distributed hiring footprint across the US, India, and the UK. Core product surfaces include coding challenges, technical candidate filtering, and integrity solutions (anti-cheating and misuse prevention). Recent work focuses on scalability (high-concurrency integrity, resilient integrations, API platform scaling), customer health monitoring, and account strategy — signals of a product maturing from self-serve tooling toward managed hiring operations.

HeadquartersCupertino, California

Company Size201–500 employees

Founded2012

Hiring MarketsUnited States, India, United Kingdom

Frequently Asked Questions

What is HackerRank's tech stack?

TypeScript, Node.js, Nest.js, React, Python, and SQL on AWS and GCP. Also uses GitHub Copilot, Cursor, ChatGPT for development; Temporal for orchestration; Okta, SAML, OIDC for identity; and New Relic for observability.

How many companies use HackerRank?

HackerRank serves 2500+ companies globally for technical talent assessment and recruiting.