Topcoder

Name: Topcoder
Address: 201 S. Capital Avenue, Indianapolis, IN, US
Telephone: +18558671356

We’re an open innovation & talent platform utilizing on-demand experts to build custom digital solutions.

Topcoder's crowdsourcing marketplace connects over 1 million designers, developers, and data scientists from around the world with major companies, including IBM, Amazon, and NASA, to enter challenges and get paid. Whether you're building applications, creating new designs, or tackling tough data problems, Topcoder is a community that embraces creativity, innovation, and the next big idea. Follow

Us
Blog: http://www.topcoder.com/blog
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09/01/2026

New AI Exponential League challenge: build an AI Workflow Puzzle Builder in 48 hours.

Real AI apps aren't a single prompt - they're multi-step workflows that fail in messy ways. A model returns bad output, a tool times out, a step gets invalid input.

This challenge is to build a browser-based game where players assemble AI workflows, break them with controlled failures, and repair them:
→ Validator rejects bad output - add a retry or repair step
→ A tool times out - switch to a fallback
→ A risky action needs sign-off - route it to human review
→ A workflow breaks mid-run - resume from the last good step

The goal isn't a workflow that runs. It's one that survives when something goes wrong.

Open to all levels, beginner to advanced. 48 hours on the clock.

Link in the comments.

08/29/2026

2 days left to join our exploratory testing challenge for a major mobile banking app.

Real accounts. Real devices. Real bugs - testing the way actual customers use the app, not just test scripts.

Know someone with an eligible account? Refer them and earn $25 for every valid bug they find - no cap.

User flows to test:
✅ Onboarding
✅ Dashboards and transfers
✅ Bill pay flows
✅ Navigation and error handling

Top prize $500, payouts down to 12th place.

Challenge runs through August 31, 8:30 AM EDT.

Link in comments.

08/25/2026

Earn $25 for every person you bring to our mobile banking app testing challenge who finds a valid bug.

No cap - every qualifying referral pays. To credit you, the person you refer adds a short Referral.txt file naming you in their submission.

This challenge is exploratory testing for a major mobile banking app, tested the way a real customer would - onboarding, dashboards, transfers, bill pay, navigation, error handling. Real accounts, real devices, real bugs.

→ Top prize: $500, payouts down to 12th place
→ Challenge runs through August 31.

Link in the comments.

08/24/2026

Marathon Match 166 is complete.

The problem: a hexagonal grid of rotatable tiles, a set of target exit pairs, and a limited budget of moves - rotate tiles to connect every pair with the longest, highest-scoring paths you can.

Congratulations to the winners:
1. asi1024
2. gaha
3. mech_39

Full top 10 is in the image. Next Marathon Match starts on October 7, 2026. Stay tuned!

08/21/2026

New challenge just launched: exploratory testing for a major mobile banking app.

It has to work for real customers, not just test scripts - so that's how we're testing it.

This challenge is live now - open to account holders of the bank on a supported device.

What testers are probing:
✅ Onboarding
✅ Dashboards and transfers
✅ Bill pay flows
✅ Navigation and error handling

Real accounts. Real devices. Real bugs.
Every issue gets reviewed for validity and reproducibility before it counts toward placing. You need 3 accepted issues to place. Top prize is $500, with payouts down to 12th.

Registration is open through August 25. Bug-hunting runs August 21-25.

Link in comments.

08/19/2026

New QA challenge: HDFC Bank Mobile App - Exploratory Testing.

Test the app the way a real customer would - onboarding, dashboards, transfers, bill pay, navigation, error messages - and report the valid, reproducible issues you find.

How it pays: $500 for first, $250 for second, and a flat $50 each for 3rd through 12th. You'll need at least 3 accepted issues to place.

Before you register, check that you qualify:
→ An active HDFC Bank account
→ The app on a supported device (Android 13+ or iOS 17.2+)
→ Your HDFC-registered SIM in the device for verification

Registration is open through August 25.
Bug-hunting and submissions run August 21-25.

Join now! Link in the comments.

08/13/2026

Build a working AI-powered learning platform in 48 hours.

Not a quiz, not a prompt exercise - a real MVP, built and running.

The task: a connected learning app with an AI tutor that adapts to the learner, pre-built missions, quiz and flashcard progress tracking, and grounded AI that doesn't hallucinate its way through a lesson.

A few things worth knowing:
→ Open to all levels - the spec welcomes everyone from beginners to seasoned AI builders
→ Submissions reviewed by AI first, then human approval - AI-native from build to review

Two days. One self-contained problem. A real thing to show at the end of it.

If you've been meaning to ship something with AI instead of just experimenting with it, this is a clean place to start.

Link in the comments.

08/12/2026

Marathon Match 166 is live.

Here's the board: a hexagonal grid of tiles, each carrying segments that run across its edges. You rotate a single tile at a time - clockwise or anti-clockwise - to connect paths between exit points on the border. Paths that cross the bonus tiles are worth more.

The goal is to connect as many paths as you can, then route them through the bonus tiles to push your score higher. The competitors who win this one will see the connections others miss.

Submission phase closes August 19. This match earns leaderboard points toward the 2026 Marathon Match Tournament, which runs through March 2027 - top 12 at season end advance to the Championship Round.

The season rolls on. Best of luck.

Link in the comments.

08/07/2026

Jay just won season 1 of the AI Exponential League.

Ask him how, and he barely mentions the AI.

jaypatel1325 finished at the top of the leaderboard across an entire season of AI challenges - agent workflows, evaluation harnesses, go-to-market systems, and more. So we asked him what actually made the difference.

It came down to planning and feedback. He reads every reviewer comment after every challenge - even the ones he won - notes what he got wrong, and doesn't repeat it. He plans the whole solution before writing a line of code.

And one principle worth taping to your monitor:
"Never trust an AI component without testing it."

The models he used are available to everyone. The habits are what set him apart - plan before you build, test every AI step before you rely on it, keep the rest simple and predictable.

The tools change every few months. The discipline doesn't.

Congratulations, Jay - well earned!

Link in the comments.

08/05/2026

The AI Exponential League season 1 is done.

These are the AI Exponential Engineers who finished at the top - four months of real AI challenges across industries, and this is where the board landed:
🥇 jaypatel1325 - $2,500
🥈 gughanrk - $1,000
🥉 dileepa - $600
4. diwosuwanto - $400
5. Om2707 - $200
6. Tsegaye16 - $100
7. mp.rise - $50
8. shxzhaosr - $50
9. sohamactive - $50
10. nqv2018 - $50

Hats off to all ten! And to everyone who competed this season - you made it one worth watching.

Address

201 S. Capital Avenue
Indianapolis, IN

Telephone

+18558671356

Website

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