Explore Developer Hackathons 2025

Developer hackathons are all about turning ideas into working software. Whether you're a front-end dev, backend expert, or full-stack engineer, these events are your playground to build, collaborate, and launch projects fast.
Explore Developer hackathons online and in-person
ONLINE IBM Cloud Day

Jan. 21, 2021

Ended

Join us for a 1-day virtual conference and hear from industry leaders, architects, and developers. Learn about IBM's cloud solutions, experience walk-thru demos, get hands-on …

ONLINE Security for eCommerce Webinar

Jan. 19, 2021

Ended

Now more than ever more businesses are moving online. Why and how should you think about security and fraud especially during this time? Come join …

IN-PERSON Santander Digital Trust

Dec. 19, 2020 - Dec. 20, 2020

Ended

Santander is on a mission to leverage the power of its APIs to develop cutting-edge digital trust solutions for its customers during this 24-hour hack! …

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big data · blockchain · fintech · security · London, England, United Kingdom
ONLINE Remote Rhapsody Online Hackathon by Deutsche Telekom

Nov. 30, 2020 - Dec. 16, 2020

Ended

Deutsche Telekom's tech incubator hubraum is looking for developers, designers, and do’ers to join them in developing new applications for the Telekom Voicification Suite. Participants …

ONLINE Intellothon

Nov. 14, 2020 - Dec. 14, 2020

Ended

Calling all student developers and innovators! We'd like to invite you to participate in the "Intellothon" powered by Intel and Epoch (AI/ML club, IIIT Sri …

ONLINE hackCBS 3.0

Nov. 7, 2020 - Nov. 8, 2020

Ended

hackCBS, a legacy being carried forward by like-minded individuals aims to collaborate the intellects of programmers, designers, application developers, tech-geeks, and newbies in the world …

IN-PERSON AgriTech Hackathon – Newmarket

Nov. 6, 2020 - Nov. 8, 2020

Ended

UK residents -- developers, electronics engineers, plant and animal biologists, physicists, farmers, vets, and agriculture industry professionals! You're invited to come to the AgriTech Hackathon …

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industry · Newmarket, England, United Kingdom
IN-PERSON Le Week-end de l'idée

Nov. 6, 2020 - Nov. 8, 2020

Ended

Developers, designers, and other techies interested in digital solutions to the problems of transportation! The Calais MDNI invites you to participate in an Idea Weekend. …

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industry · transport · Calais, Hauts-de-France, France
ONLINE NLJUG Masters of Java 2020 (Powered by First8)

Nov. 4, 2020

Ended

Java developers in the Netherlands! The Netherlands Java User Group (NLJUG) invites you to compete against the Netherlands' best Java developers to win the prestigious …

IN-PERSON ITS Moin Hack

Oct. 30, 2020 - Oct. 31, 2020

Ended

Developers, designers, architects, public transport employees, and citizens in Germany — with an interest and expertise in urban mobility and logistics! Logistik-Initiative Hamburg invites you …

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energy · industry · non-profit · transport · Hamburg, Hamburg, Germany

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