Submit a preliminary project by Sunday 27th, 10:00 AM! You are free to edit it still afterwards. We just neeed your track and table number by 10:00 AM. 


Hackathons are all about taking something you love, combining it with tech and learning something in the process. Junction brings together hackers, designers, the coolest partners and hardware for one weekend of hacking. It’s a place where creators can let go of their inhibitions and create cool inspiring projects.


Junction is not your standard cafeteria hackathon. Junction is meant to be seen, to be heard, to be felt and most importantly to be experienced. Held annually in the cold and slushy Helsinki of late November, Junction is bound to be an unforgettable experience. In 2015 Junction was built inside of an old abandoned boiler hall. In 2016 we are taking over a 19th century shipping warehouse right next to the sea in Katajanokka, Helsinki, Finland.


Junction has grown to become Europe’s biggest hackathon and an embodiment of the blooming startup ecosystem of the Nordics. But that’s not all we are about. We know that the future is not created by individuals, it’s created by communities, ideologies, and beliefs. That’s why Junction is much more than an event, it is an ideology, a movement with the goal of inspiring and fostering a community of creators. At Junction we believe a fun open-minded environment, innovative industry partners, and a little bit of passion is the beginning to creating a better tomorrow.


  • Participants: We welcome individuals, teams and groups. You can apply with your friends or even colleagues from work!
  • Countries: All countries are welcome. Infact, last year we had participants from over 30 differents ones!
  • Team size is a maximum of 5.


project must be submitted here on Devpost to be eligible for any prizes. One project can be on a maximum of two tracks at the same time (e.g. a VR Game). Concentrate on maximizing your learning while also helping others learn.

For the main prize, we're looking for hacks that amaze us in their ultilization of different technologies, have exceptional design and user experience, while also being viable in the real world. We'll be choosing the top hacks of each track at the start of Sunday, and a panel of judges will be choose the final winner.

No code outside of open source libraries is written before the event. You're free to ideate your project beforehand, but to be eligible for prizes, all code must be written at the event. 

Partner challenges are judged completely seperately, and are decided by the connected partners. You can find their judging criteria from

Hackathon Sponsors


$595,592 in prizes

Main Prize

20k Euro Main prize by Junction. 10 Finalists, one from each track. Chosen by a panel of experts. Not influenced by partner judges.

Tieto x ISS: The Future of Building Maintenance (3)

Tieto will finance the development of the most business-ready idea from proof of concept to production, with the final software to be released for all intelligent business customers with a joint business model. Winning team will get access to our premises in Keilalahti and a place in our incubation program with a superior technical and business platform including sales support, mentoring etc. The total value of the prize can be seen to be up to €100 000.

Additionally, there are cash prizes up for grabs for the three best-placed teams.

– First prize: €2000
– Second prize €1000
– Third prize: €500

Energy Challenge by GE

For the winner of this track GE provides 2500€ cash prize and all facilities at GE energy village for six months! In total the value of this prize adds up to 10 000€.

Health Challenge by GE

For the winner team GE provides a 2500€ cash prize and free office facilities at Health Innovation Village at GE for 6 months. In total the value of this prize adds up to over 10 000€.

In-store Conversions: Supercharged by Kesko (3)

– Winner team gets 2000€

– 1st runner-up 1000€

– 2nd runner-up 500€

Unexpected Virtuality by Unity (3)

Tickets to Unite Europe for all team members. Chosen by Unity. Average cash value 2000~ dollars

New Music Realities and Experiences by Deezer

PLAY:5 and/or PLAY:1 Sonos Wireless Speakers for all team members. Chosen by Deezer.

Building the Personal Health Record Ecosystem by Kanta & RIihi

Solution evaluated as the best for health benefits or social impact will be given 2000 euro reward. The Riihi actors – MOSAH, Tekes, RAY and Sitra – will also consult the winner and other promising teams on the road the Riihi rewarding event in 2017.

Embers Challenge (3)

1st prize: Parrot AR.Drone 2.0 Power Edition Quadrocopter (one per team member)
2ond prize: Sphero BB-8 (one per team member)
3rd prizes: Earebel Unisex Street Beanie Hat with Removable AKG Headphones (one per team member)

Fashion as a Service by Zalando (3)

Winning team: 2000€
1st Runner-up: 1000€
2nd Runner-up: 500€

For the winning team, Zalando also provides coaching and
mentoring for developing the idea further.

Ultimate Sleep Hack by Oura Rings

Each member of the winning team will receive an ŌURA ring (265€)

Moving Money Without Borders by Transferwise (3)

1st place: Full day mentoring in TransferWise Tallinn office, lunch with engineering leads, Refresh conference tickets.

Some info. REFRESH is a web development conference for product owners, designers and front end developers, held in 8th September Tallinn, Estonia.

Reframe the Supply Chain by UPM

Groundbreaking pairs of Genelec M030 studio monitors for winning team members. Monitors are made from sustainable and recyclable natural composite – UPM Formi. The members of the winning team will also be offered a chance to participate UPM’s Slush pre-event at UPM Biofore House and present their winning solution for UPM and its stakeholders.

2nd: Gift cards for team members (1250 EUR Amazon Web Services + 1250 EUR

3rd: Power Bank mobile power unit for team members

Other: Spezial price is still under radar and it is dependant on our results!

The Bus Stop of the Future by JCDecaux and Futurice

Trip to Futurice/JCDecaux London offices

Game Jam by Supercell

NES classic editions and visit to the Supercell office

AI-driven bots by Skype (3)

Grand Prize:
$2000, $1000 and $500 for 1st, 2nd and 3rd most awesome bots

Honorable Mentions: Customized "Skype Bot Developer" backpacks available for the top devs delivering exceptional productivity bots
Select bots will be published on Skype and promoted through Skype and Microsoft-owned marketing channels directly to the Skype consumer base

Overall technical partner: The European Space Agency (ESA) (2)

A 50 000€ cash grant for two best teams accepted into the ESA Nordic incubator

Multi-Cloud Paas and Caas with Jelastic

Pack of Unique Craft beer

Lighting challenges by Helvar

Trip to London to visit one of the prestigious sites with Helvar Lighting control solutions (pub lunch included) and the possibility of becoming a Helvar team member!

Intelligent lighting - what's next? by Tepcomp

The winning team gets 1000€ cash.

Most Useless Hack by Aaltoes

Sometimes you just want to hack for the fun of it. We want to reward that. Prize: Something so useless, that it's useful.

Coolest Undergradate Hack

Well be awarding projects done by Bachelors or HS students with special prizes.


Use your tech skills for good and hack online harassment. Build a software solution that can help reduce the frequency and/or severity of online harassment. Win a HackHarassment Swag Bag.

Amazon Web Services - Best Use of AWS

1 TB Hard Drives

Best Domain Name from Swag Bags

Bloomberg’s Choice

Kapture Watches for the winning team

Website Wars by Radix Technologies

Easiest way to win 2000 Euros!
Put up your Junction Hack project on any Radix new domain extensions : .ONLINE, .STORE, .TECH, .SITE, .SPACE, .WEBSITE, .PRESS & .HOST and submit your project on devpost with the website name eg: Project name -

PS: Radix will also provide the domain name free of cost, you can collect the coupon code from the Radix booth

Future of Political Debate by

The winning team will receive a prize of 1000€.

Better City by

The winning team will receive a prize of 1000€.

Software Development to the Personal Helper Robot by City of Helsinki

The winner gets 500€ reward.

For a piloting ready algorithm further testing with the robot might be offered by the judging team.

Smart Life Insurance that helps you stay alive by Lähitapiola

The winning team can present the outcome to the LocalTapiola Life Insurance Company’s board meeting during the Slush event in Helsinki.

In addition, we offer the winning team members Polar M600 sport smartwatch
(suggested retail price: 349.90€)

Solar Revolution in Apartment Buildings by City of Helsinki

The winner gets a 500€ reward and possibility to pitch a pilot-ready idea in the agile mini-pilots program of the Kalasatama Smart City District.

SmartCities – The Power of Now by Twitter

Prize provided by Aaltoes

Sohjoa Robotbus Challenge

500€ reward.

Use Deveo and share your experiences

We are giving out 100€ gift cards to for every team member of the winning team.

Embrace the Power of Location by (3)

A drone with video camera (Parrot AR.Drone 2.0 Elite)

Re-thinking the coffee moment with Muki

1 year worth of coffee. (24kg)
Everybody who finishes some hack using Muki open API will also get to keep the Muki smartcup

Digital Transformation by Microsoft

A participation tickets for the whole team to the Microsoft Accelerator Startup Bootcamp Helsinki:

API use by 46elks

Track Finalists (10)

1 finalist from each track

Devpost Achievements

Submitting to this hackathon could earn you:




Nelli Lähteenmäki

Nelli Lähteenmäki
CEO & Co-Founder / YOU-app

Moaffak Ahmed

Moaffak Ahmed
Serial Entrepreneur and Hands-on Early Stage Investor

Julius Hietala

Julius Hietala
Software Engineer /

Judge #4

Judge #4

Judge #5

Judge #5

Judging Criteria

  • Ultilization of multiple technologies
    Does it combine multiple existing technologies into something larger than a sum of its parts?
  • Design and UX
    Does the design stand out? Is it user-friendly?
  • Real World Impact
    Could the project be a start for a viable business? Could it create actual change in the world?
  • Devpost Submission
    We want to see what kind of challenges you faced and what kind of learning took place.
  • Sisu
    Sisu - Finnish word for courage. Encouraging out-of-the-box thinking.

Questions? Email the hackathon manager

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