ETHSOFIA 2025
hackathon
ETHSOFIA 2025
hackathon
ETHSOFIA 2025
hackathon
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
ETHSOFIA 2025
hackathon
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
ETHSOFIA 2025
hackathon
September 23-25, 2025
Innovation Forum John Atanasoff,
Sofia Tech Park
Hackathon Tracks
Tracks
Hackathon Tracks
Hackathon Tracks
DeFi
DeFi
DeFi
Sponsor track
DeFi
Sponsor track
AI
AI
AI
Open & Sponsor track
AI
Open & Sponsor track
Infra
Infra
Infra
Sponsor track
Infra
Sponsor track
Prizepool & Awards
Prizepool
& Awards
Prizepool & Awards
Prizepool & Awards
Prize pool starting at
€10,000
€10,000
€10,000
€10,000
Prize pool starting at
€10,000
Additional Benefits
Additional Benefits
All Participants
All Participants
Certificate of Participation
Certificate of Participation
Swag Kit
Swag Kit
Access to all Stages
Access to all Stages
Finalists
Finalists
Professional Networking
Professional Networking
Media Coverage
Media Coverage
Winners
Winners
Industry Recognition
Industry Recognition
Investor Pitch Opportunity
Investor Pitch Opportunity
Employment Opportunities
Employment Opportunities
Additional Benefits
All Participants
Certificate of Participation
Swag Kit
Access to all Stages
Finalists
Professional Networking
Media Coverage
Winners
Industry Recognition
Investor Pitch Opportunity
Employment Opportunities
Want to launch a bounty or set a custom challenge and inspire builders?
Want to launch a bounty or set a custom challenge and inspire builders?
Want to launch a bounty or set a custom challenge and inspire builders?
Our Partners
Our Partners
Our Partners
Our Partners
Hackathon Partner
Hackathon Partner
Hackathon Partner
Why join the
hackathon?
Why join the
hackathon?
Why join the
hackathon?
Why join the
hackathon?
Enjoy
3 days
of hacking, learning, and forming lasting collaborations
Enjoy
3 days
of hacking, learning, and forming lasting collaborations
Enjoy
3 days
of hacking, learning, and forming lasting collaborations
Enjoy
3 days
of hacking, learning, and forming lasting collaborations
Enjoy
3 days
of hacking, learning, and forming lasting collaborations
Meet
200+
fellow builders tackling cutting-edge blockchain challenges
Meet
200+
fellow builders tackling cutting-edge blockchain challenges
Meet
200+
fellow builders tackling cutting-edge blockchain challenges
Meet
200+
fellow builders tackling cutting-edge blockchain challenges
Meet
200+
fellow builders tackling cutting-edge blockchain challenges
Work alongside
top
industry leaders and gain insights from the best
Work alongside
top
industry leaders and gain insights from the best
Work alongside
top
industry leaders and gain insights from the best
Work alongside
top
industry leaders and gain insights from the best
Work alongside
top
industry leaders and gain insights from the best
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
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
Connect
with recruiters and land your next gig
Participate in
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in
Open Tracks
exploring real-world applications, AI, DeFi and more
Participate in
Open Tracks
exploring real-world applications, AI, DeFi and more
Join
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Join
Bounty Tracks
and work on challenges curated by ETHSofia’s partners
Great teams
Win
big - bring yours and claim the 1st place on the leaderboard
Great teams
Win
big - bring yours and claim the 1st place on the leaderboard
Great teams
Win
big - bring yours and claim the 1st place on the leaderboard
Great teams
Win
big - bring yours and claim the 1st place on the leaderboard
Great teams
Win
big - bring yours and claim the 1st place on the leaderboard
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
Meet
Investors
receive funding, and turn your project into a full-scale business
Check out my code!
Check out my code!
Who can Participate
Who can
Participate
Who can Participate
Who can Participate
Web3 Devs - All Levels
Web3 Devs - All Levels
Web3 Devs - All Levels
Web3 Devs - All Levels
Web2 Devs Wannabe Web3
Web2 Devs Wannabe Web3
Web2 Devs Wannabe Web3
Web2 Devs Wannabe Web3
Designers & UX Wizards
Designers & UX Wizards
Designers & UX Wizards
Designers & UX Wizards
Product Managers & Hustlers
Product Managers & Hustlers
Product Managers & Hustlers
Product Managers & Hustlers
Students & First-Time Hackers
Students & First-Time Hackers
Students & First-Time Hackers
Students & First-Time Hackers
AI & Data Scientists Nerds
AI & Data Scientists Nerds
AI & Data Scientists Nerds
AI & Data Scientists Nerds
Bizdevs, Marketers & Comms
Bizdevs, Marketers & Comms
Bizdevs, Marketers & Comms
Bizdevs, Marketers & Comms
If this sounds like you and you're up for the challenge, join the ETHSofia Hackathon.
If this sounds like you and you're up for the challenge, join the ETHSofia Hackathon.
If this sounds like you and you're up for the challenge, join the ETHSofia Hackathon.
The application process
The application
process
The application process
The application process
Mentors and Judges
Mentors and
Judges
Mentors and Judges
Mentors and Judges
Since 2016, Krasimir has been at the forefront of blockchain development, focusing on protocols and user applications. A winner of ETH Global London 2024, he brings his expertise to ETH Sofia Hackathon, mentoring participants and fostering innovation in the blockchain community.
Since 2016, Krasimir has been at the forefront of blockchain development, focusing on protocols and user applications. A winner of ETH Global London 2024, he brings his expertise to ETH Sofia Hackathon, mentoring participants and fostering innovation in the blockchain community.
Since 2016, Krasimir has been at the forefront of blockchain development, focusing on protocols and user applications. A winner of ETH Global London 2024, he brings his expertise to ETH Sofia Hackathon, mentoring participants and fostering innovation in the blockchain community.
Since 2016, Krasimir has been at the forefront of blockchain development, focusing on protocols and user applications. A winner of ETH Global London 2024, he brings his expertise to ETH Sofia Hackathon, mentoring participants and fostering innovation in the blockchain community.
Since 2016, Krasimir has been at the forefront of blockchain development, focusing on protocols and user applications. A winner of ETH Global London 2024, he brings his expertise to ETH Sofia Hackathon, mentoring participants and fostering innovation in the blockchain community.
Nikolay Angelov is VP of Engineering at Nexo, leading nine teams behind products like the Nexo Card, Earn Crypto Interest, and Instant Crypto Credit Lines. A self-taught coder and blockchain developer since 2007, he's built multiple blockchain solutions and spoken at top conferences including Java2Days, CodeMonsters, BlackSeaChain, ETHDubai, and ETHCC.
Nikolay Angelov is VP of Engineering at Nexo, leading nine teams behind products like the Nexo Card, Earn Crypto Interest, and Instant Crypto Credit Lines. A self-taught coder and blockchain developer since 2007, he's built multiple blockchain solutions and spoken at top conferences including Java2Days, CodeMonsters, BlackSeaChain, ETHDubai, and ETHCC.
Nikolay Angelov is VP of Engineering at Nexo, leading nine teams behind products like the Nexo Card, Earn Crypto Interest, and Instant Crypto Credit Lines. A self-taught coder and blockchain developer since 2007, he's built multiple blockchain solutions and spoken at top conferences including Java2Days, CodeMonsters, BlackSeaChain, ETHDubai, and ETHCC.
Nikolay Angelov is VP of Engineering at Nexo, leading nine teams behind products like the Nexo Card, Earn Crypto Interest, and Instant Crypto Credit Lines. A self-taught coder and blockchain developer since 2007, he's built multiple blockchain solutions and spoken at top conferences including Java2Days, CodeMonsters, BlackSeaChain, ETHDubai, and ETHCC.
Nikolay Angelov is VP of Engineering at Nexo, leading nine teams behind products like the Nexo Card, Earn Crypto Interest, and Instant Crypto Credit Lines. A self-taught coder and blockchain developer since 2007, he's built multiple blockchain solutions and spoken at top conferences including Java2Days, CodeMonsters, BlackSeaChain, ETHDubai, and ETHCC.
Prof. Angel Marchev Jr., Ph.D., is a digital native with 40+ years of tech experience, coding since age 6 and exploring crypto since 2009. A finance expert turned academic, he’s spent over two decades teaching management, AI, and blockchain. He founded BASAGA and AI Solvers, and has consulted for DSK Bank, BCG, and the European Commission.
Prof. Angel Marchev Jr., Ph.D., is a digital native with 40+ years of tech experience, coding since age 6 and exploring crypto since 2009. A finance expert turned academic, he’s spent over two decades teaching management, AI, and blockchain. He founded BASAGA and AI Solvers, and has consulted for DSK Bank, BCG, and the European Commission.
Prof. Angel Marchev Jr., Ph.D., is a digital native with 40+ years of tech experience, coding since age 6 and exploring crypto since 2009. A finance expert turned academic, he’s spent over two decades teaching management, AI, and blockchain. He founded BASAGA and AI Solvers, and has consulted for DSK Bank, BCG, and the European Commission.
Prof. Angel Marchev Jr., Ph.D., is a digital native with 40+ years of tech experience, coding since age 6 and exploring crypto since 2009. A finance expert turned academic, he’s spent over two decades teaching management, AI, and blockchain. He founded BASAGA and AI Solvers, and has consulted for DSK Bank, BCG, and the European Commission.
Prof. Angel Marchev Jr., Ph.D., is a digital native with 40+ years of tech experience, coding since age 6 and exploring crypto since 2009. A finance expert turned academic, he’s spent over two decades teaching management, AI, and blockchain. He founded BASAGA and AI Solvers, and has consulted for DSK Bank, BCG, and the European Commission.
2024 Hackathon recap
2024 Hackathon
recap
2024 Hackathon recap
2024 Hackathon recap
Last year, the ETHSofia Hackathon lit up Sofia Tech Park with raw energy, real builders, and relentless innovation. For 72 hours, the scene was code, connect, repeat — as developers from around the globe came together to push blockchain to the edge.
$30K+
Prize Pool
100+
Hackers
20+
Projects shipped
20+
Sponsors
22
Mentorship sessions