Topcoder

Topcoder is the original crowdsourcing platform for developers, designers, and data scientists. It is where serious competitors go to prove their worth. From high-octane Single Round Matches (SRMs) to marathon algorithm challenges and paid freelance gigs, Topcoder offers a diverse ecosystem for tech talent.

Competitive Programming & SRMs
Test your algorithmic speed in timed Single Round Matches. These intense 90-minute contests are famous for their unique "Challenge Phase" where you can inspect and break other competitors' code for extra points. Running Topcoder on your PC via Tabscend allows you to keep your local IDE and testing tools ready for rapid development.

Freelance & Gig Work
Topcoder isn't just about badges; it's about income. Compete in development challenges to win cash prizes or apply for "Gig Work"—long-term freelance contracts with top-tier companies. The desktop environment helps you manage your project deliverables, communicate with clients, and work efficiently without browser distractions.

Marathon Matches
For those who prefer deep thinking over speed, Marathon Matches offer optimization problems that run for days or weeks. Use the power of your desktop workspace to run complex simulations and refine your solutions over time.

Data Science & AI
Tackle real-world problems from NASA, Harvard, and major corporations. Topcoder's data science track lets you compete in solving complex algorithmic challenges, often with substantial prize pools.