Developer hackathons in Europe 2026 / 2027

Hackathons ✕ Europe ✕
Asia 6
Africa 0
Europe 8
North America 7
South America 0
Oceania 0
Online 48
.NET 1
Artificial Intelligence (AI) 4
Big Data 4
Cybersecurity / InfoSec 2
Data / Database 4
Data Science 4
IT 8
Large Language Model (LLM) 3
Machine Learning (ML) 4
Microsoft 1
SQL 2
Tech 8
Tech leadership 1
DK Denmark 1
RU Russia 2
SK Slovakia 1
CH Switzerland 2
GB United Kingdom 2

Best developer hackathons in Europe 2026 / 2027

Best conference
The Principal Dev – Masterclass for Tech Leads

The Principal Dev – Masterclass for Tech Leads

Certification masterclass for experienced software engineers.

Best conference
Clean Architecture Masterclass

Clean Architecture Masterclass

Certification masterclass for experienced Java developers.

Best conference
Clean Code: The Next Level

Clean Code: The Next Level

Advanced clean code certification training for Java developers.

ends in 11 days
dotnet

SPbDotNet 116

.NET hackathon in St. Petersburg, Russia, Europe

ends in 20 days
security

International Cybersecurity Olympiad (ICO)

Cybersecurity / InfoSec hackathon in Moscow, Russia, Europe and Online

ends in 1 month
it

Hack Esbjerg 2026

IT hackathon in Esbjerg, Denmark, Europe

ends in 1 month
tech

START Hack 2026

Tech hackathon in St. Gallen, Switzerland, Europe

ends in 1 month
ai

AI London Hackathon

Artificial Intelligence (AI) hackathon in London, United Kingdom, Europe

ends in 2 months
ai

Hack Kosice 2026

Artificial Intelligence (AI) hackathon in Kosice, Slovakia, Europe

ends in 2 months
data

Energy Hack Days - Lausanne

Data / Database hackathon in Lausanne, Switzerland, Europe

ends in 4 months
ai

Vibe

Artificial Intelligence (AI) hackathon in London, United Kingdom, Europe