Elevate your programming skills with our comprehensive test series. Practice with real-world coding challenges and compete with developers worldwide.
Challenge yourself with our most popular and comprehensive coding tests. Designed by industry experts to help you excel in technical interviews.
Master complex algorithms and data structures in JavaScript. Perfect for technical interviews.
Build complete React applications with hooks, state management, and modern patterns.
Comprehensive test covering pandas, numpy, and machine learning fundamentals.
Practice designing scalable systems and discussing trade-offs like a senior engineer.
End-to-end web application development using modern frameworks and databases.
Master Docker, Kubernetes, AWS, and CI/CD pipelines in this comprehensive test.
Explore our comprehensive collection of coding tests across various domains. Find the perfect challenge to advance your skills.
Master fundamental and advanced concepts in popular programming languages
Frontend and backend web development frameworks and technologies
Database design, optimization, and advanced SQL query challenges
iOS and Android app development using native and cross-platform tools
Cloud platforms, containerization, and deployment automation
Machine learning, artificial intelligence, and data analysis
Information security, ethical hacking, and security protocols
Game engines, graphics programming, and interactive entertainment
Take our comprehensive programming intelligence test and discover your coding aptitude level
Join thousands of developers who have accelerated their careers with our comprehensive, AI-powered coding platform designed for real-world success.
Our intelligent system adapts to your learning pace and identifies knowledge gaps.
Questions designed by engineers from Google, Meta, Amazon, and other top companies.
Get immediate results with detailed explanations and optimization suggestions.
Structured learning paths designed for specific career goals and job roles.
Study at your own pace with 24/7 access to all content and features.
95% of our premium users report career advancement within 6 months.
Our comprehensive platform provides all the tools, resources, and support needed to excel in technical interviews and advance your programming career.
See why Rays Test Series is the preferred choice for serious developers
Join the thousands of developers who have transformed their careers with Rays Test Series. Start your journey today with our free trial.
See how you stack up against fellow coders. Compete, learn, and climb the ranks in our global programming community.
Join thousands of developers who have accelerated their careers with our comprehensive coding test platform. Here's what they have to say about their journey.
"Rays Test Series completely transformed my interview preparation. The questions are exactly what you'll face at top tech companies. I landed my dream job at Google after just 3 months of practice!"
"The variety and quality of coding challenges here is unmatched. I've improved my problem-solving skills dramatically and gained confidence in tackling complex algorithms."
"As someone transitioning into data science, the Python and ML tracks provided exactly what I needed. The progressive difficulty and real-world scenarios made learning enjoyable."
"The React and JavaScript challenges are incredibly well-designed. They helped me understand advanced concepts and patterns that I now use daily in my work at Airbnb."
"The cloud and DevOps section is fantastic! It covers everything from basic concepts to advanced infrastructure management. Perfect for anyone looking to master modern deployment practices."
"The system design problems are exceptional. They really help you think like a senior engineer and understand the trade-offs in building scalable systems."
Join over 50,000 developers who are advancing their careers with Rays Test Series
We're on a mission to empower developers worldwide with the skills and confidence needed to excel in their coding careers.
Rays Test Series was born from a simple observation: traditional coding interview preparation was broken. Developers needed a platform that not only tested their skills but actually helped them grow.
Today, we're proud to be the trusted partner for developers at every stage of their journey - from students preparing for their first job to senior engineers aiming for staff positions at top tech companies.
We're committed to providing the highest quality coding challenges and learning experiences.
Built by developers, for developers. Our community shapes every feature and improvement.
Making quality coding education accessible to developers worldwide, regardless of background.
We believe in the potential of every developer and are passionate about helping them succeed.
Passionate about democratizing quality coding education worldwide.
Building scalable platforms that help developers achieve their potential.
Designing learning paths that accelerate career growth in tech.
"To create a world where every developer has access to the tools, knowledge, and opportunities they need to build exceptional software and advance their careers - regardless of their background or starting point."
Find answers to common questions about Rays Test Series. Can't find what you're looking for? Our support team is here to help!
Can't find the answer you're looking for? Our support team is available 24/7.
Getting started is easy! Simply sign up for a free account, complete your profile, and browse our test categories. We recommend starting with our 'Programming Fundamentals' track if you're new to coding challenges, or jump into specific language tracks based on your experience level.
We offer a free tier with access to 50+ basic coding challenges, and premium subscriptions starting at $19/month. Premium includes unlimited access to all 500+ tests, detailed explanations, progress tracking, and priority support. We also offer annual plans with 20% savings.
Our tests are categorized into four difficulty levels: Beginner (for those new to programming), Intermediate (1-2 years experience), Advanced (3-5 years experience), and Expert (5+ years or specialized knowledge). Each test clearly indicates its difficulty level and estimated completion time.
We support 15+ programming languages including JavaScript, Python, Java, C++, Go, Rust, TypeScript, Swift, Kotlin, PHP, Ruby, C#, Scala, and more. You can solve most challenges in your preferred language, and we're constantly adding support for new languages based on community demand.
Our team is here to help you succeed. Get in touch and we'll respond within 24 hours.
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