

March 25–26, 2026 | Educa Building, UEF, Joensuu
Innovate at the speed of light
Sohjo Hacks is a 30-hour international hackathon where developers, designers, and innovators build working prototypes and web apps for real research and commercial challenges.
Build something heavy
The hardest challenges don't get solved in weekend projects. They take years. Unless you put the right people, the right tools, and 30 uninterrupted hours in the same room. With AI-assisted development, a team of ambitious builders can go from a hard problem to a working solution faster than many companies move in a quarter. 30 hours. Enough to ship something that changes your next chapter.
Challenges

University of Eastern Finland
Pitch a pilot project idea that pairs a real business problem with the research expertise and lab infrastructure available at UEF Joensuu Campus — and turn it into a concrete collaboration plan.
The problem:
Many innovative companies have R&D needs but lack access to the specialized lab environments, testing facilities, and domain expertise required to move ideas forward. At the same time, UEF Joensuu Campus sits on a wide range of underutilized RDI capabilities (from photonics and sustainable chemistry to immersive XR technologies and natural resource research) that could accelerate company innovation. The gap between business ambition and research capacity remains untapped.
What you'll build:
A compelling pilot or proof-of-concept proposal that identifies a specific business or customer problem, maps it to one or more UEF Joensuu labs, and outlines how a joint RDI project, contract research engagement, or co-funded research partnership could be structured. The strongest submissions will articulate clear novelty, a path to business value, and a realistic collaboration model with UEF.
Prizes:
- €1000
- €700 in intellectual property consultation from Genip Oy
- Future collaboration opportunity

Valamis
Build a proof-of-concept that assesses where individual employees actually stand in their skill development and surfaces targeted learning to close the gaps.
The problem:
Companies that define what skills each role requires still rarely have a clear picture of where individual employees actually stand against that list. Learning gets assigned by role, not by need. Gaps go undetected until they surface somewhere costly.
What you'll build:
A system that identifies genuine skill gaps at the individual level and maps them to existing content. The hard part isn't recommending content once a gap is found. It's the identification itself. Job titles, training history, and self-assessment all fall short. Your solution needs a better signal. Format is open: a web app, a Slack bot, a browser extension, or an ambient layer inside an existing tool.
Prizes:
- €1000

PLURI and KATEKO projects
Design a Language Station to help teachers plan, adapt, and deliver multilingual education, enabling students to leverage their multilingual backgrounds and fully engage in higher education.
The problem:
Multilingual students often face barriers in largely monolingual education systems, even as higher education becomes increasingly internationalized and requires instruction in multiple languages. Multilingualism is widely recognized as a key cultural and societal asset in Europe, yet practical tools for planning and delivering multilingual learning are still lacking. Teachers need solutions that support multilingual instruction, make key terminology accessible, and help students engage in multilingual learning environments.
What you'll build:
Design a Language Station tool or service that supports multilingual teaching and learning in University of Eastern Finland's degree programmes. The solution could process teaching materials and institutional resources, identify key terminology, adapt content for diverse language skills, produce multilingual glossaries, and raise awareness about translanguaging practices. The goal is to make teachers better prepared for multilingual teaching, save time on planning and preparation, and improve students' experience in multilingual learning environments.
Prizes:
- €1000
Agenda
Day 1 — Wednesday, March 25
| Time | What |
|---|---|
| 08:00–10:30 | Check-in & registration open (Educa Lobby) |
| 10:30–11:50 | Opening ceremony — welcome, challenge presentations (E200 Main Hall) |
| 11:50–12:10 | Team formation & hacking kick-off (E200 Main Hall) |
| 12:10 | Hacking begins |
| 22:00 | Main hacking block ends — hacking continues overnight for those staying |
Day 2 — Thursday, March 26
| Time | What |
|---|---|
| 08:00–10:00 | Simple breakfast available (Kampus Bistro cafeteria, Educa) |
| 10:30–12:00 | AI Workshop — Building with AI: coding & agents (E200 Main Hall, Kimmo Leppänen) |
| 10:00–15:00 | Final hacking sprint |
| 15:00 | SUBMISSION DEADLINE — no late entries |
| 15:50–17:30 | Pitch session — finalist teams present (3 min pitch + 5 min Q&A per team, E200 Main Hall) |
| 17:45–18:10 | Winners announced per challenge |
| 19:00 | Award ceremony — Las Palmas (Only for winners) |
What you get
Beyond the prize money
Portfolio projects for students
Ship a real prototype or web app and add it to your portfolio
Guidance on AI-assisted development tools
A workshop where you'll learn tools like Lovable, Claude Code, Cursor, and Antigravity to ship faster
Meals and workspace
Coffee, free meals, and a dedicated hacking environment for 30 hours
Partnerships for company representatives
Meet potential partners, facility providers, researchers, and industry professionals
Travel grants for company representatives
Company reps participating in the Pilot project for UEF labs challenge can apply for a travel grant (max €400 per team, more info in Rules)
Networking
Connect with 50 developers, designers, and innovators + get a chance to connect with 500+ attendees at Sohjo (for finalists)
Your hackathon journey
Now
Apply on the Vivunity platform
We will review applications and get back to you as soon as possible. In the application, tell us about yourself, your skills, and why you want to participate in Sohjo Hacks.
Then
Assemble your team
It's allowed to participate solo or in teams of up to 5 people. If you don't have a team, you can use Vivunity's team matching tool to find the best team members for you.
March 25, Morning
Arrive
Check in at Educa Building, UEF, Joensuu. Meet other participants. Hear challenge presentations from company partners. Meet your team.
March 25-26, 30 Hours
Build
Access to mentors, workspace, meals, and tools. Ship working prototypes, web apps, and research proof-of-concepts. We guide you on modern development practices like AI-assisted coding and rapid prototyping.
March 26, Evening
Present
Demo your solution to challenge partners and judges. Winners present at the Sohjo event.
After
Opportunities
Portfolio piece. Partnership and collaboration opportunities. Potential job offers. Connections with Finland's deep tech ecosystem. Proof you can ship fast.

Sohjo Hacks 2025 — Award ceremony
Ready to write your next chapter?
Join 50 builders for 30 hours of AI-assisted development. Tackle hard industry challenges. Ship a working solution and make an impact.
Application period ends March 23, 2026 | Event: March 25–26









