ETHSOFIA 2025
hackathon
The only programming competition dedicated to the latest innovations in blockchain and Web3 technologies in Bulgaria!
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
ETHSOFIA 2025
hackathon
The only programming competition dedicated to the latest innovations in blockchain and Web3 technologies in Bulgaria!
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
ETHSOFIA 2025
hackathon
The only programming competition dedicated to the latest innovations in blockchain and Web3 technologies in Bulgaria!
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
Why join the
hackathon?
Why join the
hackathon?
Why join the
hackathon?
3 days
of hacking, learning, and forming lasting collaborations and relationships
3 days
of hacking, learning, and forming lasting collaborations and relationships
3 days
of hacking, learning, and forming lasting collaborations and relationships
3 days
of hacking, learning, and forming lasting collaborations and relationships
Meet
100+
fellow builders tackling cutting-edge blockchain challenges
Meet
100+
fellow builders tackling cutting-edge blockchain challenges
Meet
100+
fellow builders tackling cutting-edge blockchain challenges
Meet
100+
fellow builders tackling cutting-edge blockchain challenges
Work alongside
top
industry leaders and gain insights from the best in the biz
Work alongside
top
industry leaders and gain insights from the best in the biz
Work alongside
top
industry leaders and gain insights from the best in the biz
Work alongside
top
industry leaders and gain insights from the best in the biz
Receive
1:1
mentorship from pioneers in the crypto ecosystem
Receive
1:1
mentorship from pioneers in the crypto ecosystem
Receive
1:1
mentorship from pioneers in the crypto ecosystem
Receive
1:1
mentorship from pioneers in the crypto ecosystem
Connect
with recruiters and land your next gig
Connect
with recruiters and land your next gig
Connect
with recruiters and land your next gig
Connect
with recruiters and land your next gig
Participate in thematic
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in thematic
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in thematic
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in thematic
Open Tracks
exploring real-world applications, AI, DeFi and more
Join numerous
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join numerous
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join numerous
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join numerous
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Get the chance to
Win
generous monetary rewards
Get the chance to
Win
generous monetary rewards
Get the chance to
Win
generous monetary rewards
Get the chance to
Win
generous monetary rewards
Meet
Investors
receive funding, and turn your project into a full-scale business
Meet
Investors
receive funding, and turn your project into a full-scale business
Meet
Investors
receive funding, and turn your project into a full-scale business
Meet
Investors
receive funding, and turn your project into a full-scale business
Who can Participate
Who can
Participate
Who can Participate
Web2 Devs
Web2 Devs
Web2 Devs
Web3 Devs
Web3 Devs
Web3 Devs
All levels of experience
All levels of experience
All levels of experience
UI/UX Experts
UI/UX Experts
UI/UX Experts
Designers
Designers
Designers
Project Managers
Project Managers
Project Managers
* Students are encouraged to join.
* Students are encouraged to join.
* Students are encouraged to join.
The application process
The application
process
The application process
1
Apply to hack by submitting this form.
A successful submission will trigger an automatic notification, whereas a second email will confirm whether your application is approved or rejected.
1
Apply to hack by submitting this form.
A successful submission will trigger an automatic notification, whereas a second email will confirm whether your application is approved or rejected.
1
Apply to hack by submitting this form.
A successful submission will trigger an automatic notification, whereas a second email will confirm whether your application is approved or rejected.
1
Apply to hack by submitting this form.
A successful submission will trigger an automatic notification, whereas a second email will confirm whether your application is approved or rejected.
2
If approved, get your Builder ticket on Moongate
(Make sure to use the same email address for your hacker application and for registering on Moongate)
In 2025, we decided to require a small participation fee of 10 EUR, in order to guarantee the number of participants who will be physically present at the hackathon. Please only buy a ticket if you seriously plan to join us on site.
2
If approved, get your Builder ticket on Moongate
(Make sure to use the same email address for your hacker application and for registering on Moongate)
In 2025, we decided to require a small participation fee of 10 EUR, in order to guarantee the number of participants who will be physically present at the hackathon. Please only buy a ticket if you seriously plan to join us on site.
2
If approved, get your Builder ticket on Moongate
(Make sure to use the same email address for your hacker application and for registering on Moongate)
In 2025, we decided to require a small participation fee of 10 EUR, in order to guarantee the number of participants who will be physically present at the hackathon. Please only buy a ticket if you seriously plan to join us on site.
2
If approved, get your Builder ticket on Moongate
(Make sure to use the same email address for your hacker application and for registering on Moongate)
In 2025, we decided to require a small participation fee of 10 EUR, in order to guarantee the number of participants who will be physically present at the hackathon. Please only buy a ticket if you seriously plan to join us on site.
3
Join us at Innovation Forum John Atanasoff at Sofia Tech Park on September 23rd, 2025.
3
Join us at Innovation Forum John Atanasoff at Sofia Tech Park on September 23rd, 2025.
3
Join us at Innovation Forum John Atanasoff at Sofia Tech Park on September 23rd, 2025.
3
Join us at Innovation Forum John Atanasoff at Sofia Tech Park on September 23rd, 2025.
Mentors and Judges
Mentors and
Judges
Mentors and Judges
Founder of HackBG. Milen is a tech entrepreneur by definition, blockchain software developer by choice, privacy activist by need.
Milen
Radkov
Chief Guide of Glorious Debugging
Founder of HackBG. Milen is a tech entrepreneur by definition, blockchain software developer by choice, privacy activist by need.
Milen
Radkov
Chief Guide of Glorious Debugging
Founder of HackBG. Milen is a tech entrepreneur by definition, blockchain software developer by choice, privacy activist by need.
Milen
Radkov
Chief Guide of Glorious Debugging
Founder of HackBG. Milen is a tech entrepreneur by definition, blockchain software developer by choice, privacy activist by need.
Milen
Radkov
Chief Guide of Glorious Debugging
Milena is a Web3 founder and technical product manager with over 10 years in tech and 4+ years in decentralized ecosystems. She is the founder of Collabberry, a compensation tool for early-stage teams and DAOs, currently building within the Arbitrum ecosystem.
Milena
Monova
Orchestrator of the Innovation Revolution
Milena is a Web3 founder and technical product manager with over 10 years in tech and 4+ years in decentralized ecosystems. She is the founder of Collabberry, a compensation tool for early-stage teams and DAOs, currently building within the Arbitrum ecosystem.
Milena
Monova
Orchestrator of the Innovation Revolution
Milena is a Web3 founder and technical product manager with over 10 years in tech and 4+ years in decentralized ecosystems. She is the founder of Collabberry, a compensation tool for early-stage teams and DAOs, currently building within the Arbitrum ecosystem.
Milena
Monova
Orchestrator of the Innovation Revolution
Milena is a Web3 founder and technical product manager with over 10 years in tech and 4+ years in decentralized ecosystems. She is the founder of Collabberry, a compensation tool for early-stage teams and DAOs, currently building within the Arbitrum ecosystem.
Milena
Monova
Orchestrator of the Innovation Revolution
What are the Hackathon rules?
What are the minimum submission requirements?
What are the criteria for success?
Who and when will distribute prizes?
Travel & Accommodation
Will There be Side Events?
What are the Hackathon rules?
What are the minimum submission requirements?
What are the criteria for success?
Who and when will distribute prizes?
Travel & Accommodation
Will There be Side Events?
What are the Hackathon rules?
What are the minimum submission requirements?
What are the criteria for success?
Who and when will distribute prizes?
Travel & Accommodation
Will There be Side Events?
What are the Hackathon rules?
What are the minimum submission requirements?
What are the criteria for success?
Who and when will distribute prizes?
Travel & Accommodation
Will There be Side Events?
@ 2025 ETHSofia. All rights reserved.
@ 2025 ETHSofia. All rights reserved.
@ 2025 ETHSofia. All rights reserved.
@ 2025 ETHSofia. All rights reserved.