DragonByte Coding Challenge 2026

DragonByte is an algorithmic coding challenge for engineers who enjoy hard problems, tight constraints, and fast feedback.

At Wincent, we build trading systems where small technical decisions matter. This challenge is not an HFT simulation, but the useful skills overlap: break the problem down, handle edge cases, make the right trade-offs, and write code that works under pressure. Some problems will be elegant. Some will be annoying. That is the point. We want to see how you think when the clock is running.

The 2026 edition is in progress

Next stage: Everyone who qualified gets to compete in the Online Round on July 17.

The top 20 eligible finishers in the Online Round will be invited to the on-site finals held in Bratislava, Slovakia.

Find out more

Want to understand how it all works? Browse the contest archive and read the problem statements and solutions from past contests. Check the scoreboard of last year's On-site Finals and look into the photo gallery to see what the finals looked like.

The FAQ explains all the basics. The Competition Rules and the Terms and Conditions cover how the competition works.

Still have unanswered questions? Email us: DragonByte@WincentDragonByte.com