Best Extracurricular Activities for Computer Science Majors: STEM Programs & Coding Clubs

Author:

Article Summary

The best extracurricular activities for aspiring computer science and AI majors: coding clubs, hackathons, STEM summer programs, research opportunities, and open-source projects for college applications.

Full Article

If you're planning to major in Computer Science, Artificial Intelligence, or a related field, your extracurricular activities can significantly strengthen your college applications. The best CS and AI programs want to see evidence of genuine passion for technology, hands-on coding experience, and the ability to apply technical skills to solve real problems. This comprehensive guide covers the most impactful extracurriculars for aspiring computer science and AI majors—from competitive programming to research opportunities to building your own projects. What CS and AI Programs Look For Admissions officers at top computer science programs evaluate applicants differently than general admissions. They're specifically looking for: Technical skills demonstrated through projects – Not just coursework, but things you've built Passion for technology and learning – Self-taught skills, curiosity beyond requirements Problem-solving ability – Competitive programming, hackathons, research Collaboration skills – Team projects, open-source contributions, teaching others Initiative and creativity – Creating original projects, starting clubs, building communities. Learn how to turn your hobby into a passion project. Pro Tip: Use our Activities Tracker to document your technical projects with specific details about technologies used, problems solved, and impact created. Competitive Programming and Coding Competitions Competitive programming demonstrates algorithmic thinking and problem-solving skills—core abilities for CS success. This kind of deep focus is what helps you build a compelling spike in your applications. Here are the top competitions to consider: USACO (USA Computing Olympiad) USACO is the premier competitive programming contest for high school students in the United States. It consists of four divisions (Bronze, Silver, Gold, Platinum) and can lead to selection for the International Olympiad in Informatics (IOI). Format: Online contests held monthly during the school year Skills tested: Algorithm design, data structures, implementation Why it matters: Top performers gain national recognition; IOI participants are highly recruited by elite programs American Computer Science League (ACSL) ACSL offers team-based competitions with both written theory and programming components. Format: School teams compete in four contests, culminating in finals Skills tested: Computer science theory, programming, teamwork Why it matters: Combines theoretical knowledge with practical skills CodeForces, LeetCode, and Online Platforms While not formal competitions, maintaining a strong presence on competitive coding platforms demonstrates consistent practice and skill development. These online activities are especially valuable for students without local CS communities. Participate in weekly/biweekly contests Achieve high ratings that you can cite in applications Document your progress over time Hackathons and Build Competitions Hackathons showcase your ability to rapidly prototype solutions under time pressure—a crucial skill in tech. They also demonstrate creativity and teamwork. Major League Hacking (MLH) Events MLH hosts the largest network of student hackathons. Participating in multiple MLH events shows sustained engagement with the hackathon community. Congressional App Challenge This nationwide competition challenges high school students to create an app that addresses a problem in their community. Format: Build an app over several months, submit with video demo Recognition: Winners are honored in Congress and displayed in the Capitol Why it matters: Combines technical skills with civic engagement Google Science Fair and Regeneron Science Talent Search For students with CS-related research projects, these prestigious competitions offer significant recognition and scholarships. Browse our opportunities database filtered by CS/STEM to find hackathons and competitions near you. Research Programs and Internships Research experience is especially valuable for students interested in AI, machine learning, or computer science academia. It demonstrates ability to engage with cutting-edge problems. University Research Programs Research Science Institute (RSI) – Highly selective 6-week program at MIT; among the most prestigious opportunities for STEM students COSMOS – California university summer programs with CS and engineering tracks Carnegie Mellon Pre-College Programs – Includes AI and computer science tracks Stanford Summer Programs – Various CS-focused options for high school students Industry Internships Some companies offer high school internships or programs: Google CSSI – Computer Science Summer Institute for rising college freshmen Microsoft High School Internship – Available in certain locations Local tech startups – Often more accessible than big companies; reach out directly Independent Research You don't need a formal program to do research. Consider: Reaching out to professors at local universities Participating in citizen science projects with computational components Conducting independent research and submitting to science fairs Personal Projects and Side Hustles Personal projects are often the most impactful extracurriculars for CS applicants. They demonstrate initiative, creativity, and real technical skills—with no gatekeepers required. Building Applications and Tools Create something that solves a real problem: Web apps – Tools for your school, community, or a cause you care about Mobile apps – Available to anyone with a smartphone; aim for real users and downloads Automation tools – Scripts and programs that make tasks easier Games – Demonstrate creativity and technical implementation skills AI and Machine Learning Projects With accessible tools like TensorFlow, PyTorch, and Google Colab, high schoolers can build impressive ML projects: Train image classification models for practical applications Build chatbots or natural language processing tools Create predictive models using public datasets Experiment with generative AI and prompt engineering Hardware and Robotics Projects Physical computing projects with Raspberry Pi, Arduino, or robotics kits demonstrate hands-on engineering skills: Build IoT devices and home automation systems Create robots with computer vision or autonomous navigation Design wearable technology or assistive devices Pro Tip: Document your projects on GitHub with clear README files, and consider writing blog posts explaining your process. This creates a portfolio you can share with colleges. Open Source Contributions Contributing to open source projects demonstrates collaboration skills and engagement with the broader developer community. It also shows you can work with existing codebases—a critical professional skill. How to Get Started Look for repositories tagged "good first issue" on GitHub Start with documentation improvements or bug fixes Gradually work up to feature contributions Engage with maintainers and follow contribution guidelines Programs for Young Contributors Google Summer of Code – While typically for college students, awareness and preparation helps Hacktoberfest – Annual event encouraging open source contributions MLH Fellowship – Open source internship program Clubs and Team Activities Coding clubs and team activities demonstrate leadership and collaboration. Consider both joining existing clubs and starting new ones. School Clubs Computer Science Club – If your school has one, aim for leadership; if not, start one Robotics Teams – FIRST Robotics, VEX Robotics, or similar competitions Cybersecurity Club – Growing in popularity; consider CyberPatriot competition Math Club – Strong mathematical foundations support CS study Creating a CS Club If your school lacks a CS club, starting one can be an impressive leadership activity: Organize coding workshops for beginners Host guest speakers from local tech companies Run hackathons or coding challenges Prepare for competitive programming contests as a team Teaching and Mentorship Teaching coding to others demonstrates mastery of concepts and leadership skills. It also shows social awareness and desire to share opportunities. Opportunities to Teach Tutor classmates or younger students in CS concepts Volunteer with organizations like Code.org, Girls Who Code, or Black Girls CODE Create a coding tutorial YouTube channel or blog Organize workshops at local libraries or community centers Mentor at summer coding camps Building an Audience Creating educational content online can reach thousands: Start a coding tutorial blog or YouTube channel Share projects and explanations on Twitter/X or LinkedIn Contribute to educational platforms like freeCodeCamp Online Learning and Certifications While not traditional extracurriculars, self-directed learning demonstrates initiative and passion. Document courses and certifications you complete: Complete MOOCs (Coursera, edX, Udacity) in advanced CS topics Earn cloud certifications (AWS, Google Cloud, Azure) Learn specialized skills (cybersecurity, data science, game development) Take university-level CS courses through dual enrollment Sample 4-Year Plan for CS-Focused Students Freshman Year Learn a programming language deeply (Python, Java, or JavaScript) Join or start a CS club at your school Begin competitive programming practice (USACO Bronze) Complete your first personal project Sophomore Year Build 2-3 more substantial projects Participate in hackathons Advance in competitive programming (USACO Silver) Start contributing to open source Look for summer programs or local opportunities Junior Year Take leadership in CS club or robotics team Apply to competitive summer research programs Build a significant project with real users Aim for higher competitive programming achievements (USACO Gold+) Begin teaching/mentoring activities Senior Year Complete major projects and document them thoroughly Compile your GitHub portfolio and project documentation Write about technical experiences for application essays Mentor underclassmen to continue your initiatives Documenting Your Technical Journey How you present your CS extracurriculars matters. Create a strong technical portfolio: GitHub Profile – Clean, well-documented repositories with clear READMEs Personal Website – Showcase projects, blog posts, and your journey LinkedIn – Professional profile with projects and accomplishments Project Documentation – Screenshots, demos, user statistics, and testimonials Track everything in our Activities Tracker with specific technologies, metrics, and links to live projects. Finding More Opportunities Ready to build your CS extracurricular profile? Here's how to get started: Take our Find My Fit quiz to discover opportunities aligned with your specific interests within CS/AI Browse our database of 1,500+ verified opportunities filtered by STEM and technology Track your projects and activities in the Activities Tracker Organize your college applications with the Application Manager Know of a great CS opportunity? Submit it to help other students! Frequently Asked Questions What level of competitive programming do I need for top CS programs? You don't need to reach IOI level to impress colleges. Reaching USACO Silver or Gold, or consistently participating in CodeForces with an improving rating, demonstrates commitment. What matters most is showing progression and genuine problem-solving ability over time. Should I focus on competitions or personal projects? Both have value, but personal projects often make a bigger impact because they demonstrate creativity and initiative. A working app with real users or an open-source contribution shows you can build things that matter, not just solve algorithmic puzzles. What if my school doesn't have a CS club or robotics team? This is actually an opportunity! Starting a club shows initiative and leadership. Alternatively, focus on online communities, virtual hackathons, open-source contributions, and personal projects. Many successful CS applicants built their profiles entirely outside of school. How early should I start learning to code? There's no minimum age, but starting by freshman year gives you time to develop skills and build projects. However, students who start later can still succeed by focusing intensely on one or two areas and showing rapid growth and genuine passion. Do I need internships or research experience? While valuable, they're not required. Strong personal projects, competition results, or open-source contributions can be equally impressive. What matters is demonstrating technical ability and passion for CS, however you choose to show it. The best time to start building your CS profile is now. Pick one project, one competition, or one club—and dive in. Your future in computer science starts with the code you write today. Get Started with ExtracurricularHub ExtracurricularHub helps students discover and track meaningful extracurricular activities: Browse opportunities: Explore 1,500+ verified programs Get personalized matches: Take the Find My Fit quiz Track your activities: Use the Activities Tracker Learn strategies: Read the Student Success Blog

Frequently Asked Questions

What level of competitive programming do I need for top CS programs?

You don't need to reach IOI level to impress colleges. Reaching USACO Silver or Gold, or consistently participating in CodeForces with an improving rating, demonstrates commitment. What matters most is showing progression and genuine problem-solving ability over time.

Should I focus on competitions or personal projects?

Both have value, but personal projects often make a bigger impact because they demonstrate creativity and initiative. A working app with real users or an open-source contribution shows you can build things that matter, not just solve algorithmic puzzles.

What if my school doesn't have a CS club or robotics team?

This is actually an opportunity! Starting a club shows initiative and leadership. Alternatively, focus on online communities, virtual hackathons, open-source contributions, and personal projects. Many successful CS applicants built their profiles entirely outside of school.

How early should I start learning to code?

There's no minimum age, but starting by freshman year gives you time to develop skills and build projects. However, students who start later can still succeed by focusing intensely on one or two areas and showing rapid growth and genuine passion.

Do I need internships or research experience?

While valuable, they're not required. Strong personal projects, competition results, or open-source contributions can be equally impressive. What matters is demonstrating technical ability and passion for CS, however you choose to show it.