REUNION HACKATHON

48 hours of work on challenges from companies and institutions.

AI Transformation

A room full of people at laptops, one red jacket
reunion.js
const reunion = { participants: 100, hours: 48, city: "Warsaw", community: "10 000+", // GPSS };

Building a Poland worth coming back to.

The best Polish students abroad come back to build in Poland.

Reunion Hackathon is a 48-hour AI hackathon in Warsaw, 5–7 February 2027, for 100 Polish students and graduates of universities abroad. Taking part is free.

Organiser · Global Polish Student Society

We go for quality, not numbers.

  • Sweden470 students
  • Denmark1 400 students
  • United Kingdom2 365 students
  • Netherlands5 960 students
  • Switzerland550 students
  • Italy980 students
  • Spain590 students
  • WAW · Warsaw52.2297°N · 21.0122°E

More than 12,000 Polish students study in these seven countries. Sources: Eurostat 2024, Nuffic and HESA 2024/25.

GPSS logo
OrganiserGlobal Polish Student SocietyNetwork of Polish students abroad · Inspire · Unite · Return

AI Transformation.

One theme: how AI changes products, processes and whole industries.

ai/peopleai/businessai/govyour-challengemaindemo day · mergeai/peopleai/businessai/govyour-challengemaindemo day · merge

AI for people

Partner track

AI in business

Partner track

AI in government

Partner track

Your challenge

One of the tracks can be yours.

Get in touch

48 hours. From idea to demo.

0H12H24H36H48HOPENINGWORKFINAL
  1. Friday, 16:00: registration
  2. Friday, 17:00: opening gala
  3. Friday, 19:00: find your team
  4. Friday, 20:00: coding starts
  5. Saturday, 12:00: pitch workshop
  6. Sunday, time to be announced: submissions close
  7. Sunday, time to be announced: presentations
  8. Sunday, 13:30: lunch
  9. Sunday, 15:30: closing gala
  10. Sunday, 17:00: networking
5 February

Friday

Opening16:00Workfrom 20:00
6 February

Saturday

Workround the clock
7 February

Sunday

Workuntil submissionFinal15:30
Venue photo

Venue

Warsaw

In Warsaw, 5–7 February 2027. We will announce the exact venue before applications open.

Venue name
Address
Getting there

WAW · Warsaw

52.2297°N · 21.0122°E

100
places

We are looking for 100 people.

Students and recent graduates. You can apply solo or with a team.

SELECTION BY APPLICATIONFREE TO TAKE PARTSOLO OR AS A TEAMSTUDENTS AND GRADUATES
~/reunion $
Apply soon

Build it with us.

Imperial, Oxford, Cambridge, ETH. In one room in Warsaw for the first time.

Your challenge in the best hands

For 48 hours, teams from top universities prototype a solution to a specific problem your company has.

Meet them before they decide

These people are choosing between London, Zurich and Warsaw. You decide where they go.

Fast track to your team

Internships, mentoring and hiring for the winners, with your company funding the prize.

Founding Partner

You shape the format from the first edition, with first refusal in the years ahead.

Imperial College LondonUniversity of OxfordUniversity of CambridgeUniversity College LondonLondon School of EconomicsETH ZurichTU DelftUniversità BocconiIE UniversityUniversity of Warwick

Packages

Four levels of partnership.

Title Sponsor

1 place, exclusive

Track Partner

Max. 3, one track each

Supporting Partner

Open number

Patron

Only startups and scale-ups up to 50 people

Title Sponsor
Track Partner
Supporting Partner
Patron
Partner contactMaks RokoszHead of Partnerships
maks.rokosz@globalpolsoc.com+48 538 444 835
Ask for the partner deck

Who is behind it.

Copenhagen Business School
Adam Bączek

Adam Bączek

Lead
Copenhagen Business School
Mikołaj Sapek

Mikołaj Sapek

Operations
Copenhagen Business School
Hubert Szymanowski

Hubert Szymanowski

Operations
Imperial College London
Maksymilian Rokosz

Maksymilian Rokosz

Partnerships
University of Amsterdam
Jakub Pecka

Jakub Pecka

Partnerships
University of Amsterdam
Alicja Rudawy

Alicja Rudawy

Partnerships
University of Amsterdam
Alicja Dorobis

Alicja Dorobis

Program
TU Delft

Jakub Partyka

Program

Questions and answers.

Who can apply?
Polish students and graduates of universities abroad, mainly in computer science, AI/ML, engineering and data science. We select based on applications. We will publish the exact criteria together with the form.
How much does it cost?
Taking part is free. Places are limited to 100, with selection by application.
Do I need a team?
No. You can apply solo, and teams can also form on site during the opening.
Do I need to code?
The core of the event is building a prototype, but good teams also need design and business. What counts is what you bring to the project.
Do we work at night?
Yes. The room is open round the clock, from the start on Friday at 20:00 until projects are submitted on Sunday.
How does the project presentation work?
Each team has 3 minutes for the pitch and 2 minutes for questions from the jury. On Saturday at noon we run a pitching workshop.
When do applications open?
Soon. The form will appear on this page. Also follow the GPSS channels.
When and where is the event?
In Warsaw, 5–7 February 2027. We will announce the exact venue before applications open.
Does the organiser cover travel and accommodation?
We will share the logistics with accepted participants.
How do I become a partner?
Write to maks.rokosz@globalpolsoc.com. We will send you the partner deck with packages, benefits and rates. It is not available for download.
What language is the event in?
Polish. Some workshops and materials may be in English.

return(home);

Be in the room when it starts.

Form coming soon