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.

Meet the finalists

The online stages are over and the competition is moving to Bratislava, Slovakia for the on-site final round in September. Our finalists are:

Note that the list of finalists can still change based on their availability and final eligibility checks.

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