John Okyere
Software Engineer
I design and build AI-powered and on-chain systems that solve real-world problems, with a focus on performance, usability, and scalability.
Previously a Founding Engineer at 
Credaxis. I’ve built and shipped cloud and blockchain solutions across multiple domains, and I’m a 4× international hackathon winner.
Selected Work
One-stop infrastructure for decentralized verifiable education credentials.
- 2025
Personal AI voice companion for emotional well-being.
- 2024
Decentralized social co-investing platform for creators.
- 2025
On-chain sound rights platform for music creators.
- 2025
Writing
Awards
- Safe Agentathon
Advanced Portfolio Management Track — 1st Place
- 2025
- ETHOnline (ETHGlobal)
Best use of Artificial Superintelligence Alliance — 2nd Place
- 2025
- TOKEN2049 Singapore Origins Hackathon
Best App on Celo - 2nd Place
- 2025
- Somnia AI Hackathon
DeFi Agent Track — 2nd Place
- 2025
- Solana Cypherpunk Hackathon
ASI Agents Track — 3rd Place
- 2025
- Lens Spring Hackathon
Honorary Mention #2
- 2025
- Story World Assets Buildathon
Tomo SDK Bounty Winner
- 2025
- Zora Coinathon
Prize Pool Winner
- 2025
Highlights
African Builder Stories — Ethiopia Feature
Builder in Residence at ETHiopia Builder Residency
Competing at ETHiopia Builder Hackathon
Entrepreneurship & Innovation at WeVentures Ethiopia
Keynote Pitch at UEW Innovation Hub — British Council
Roundtable Speaker at Sui Ghana × UEW Roadshow
Lead Instructor — 3-Day ICP Smart Contracts Bootcamp at UCC
ICP Community Meetup Facilitator at UCC
Pitch Showcase at AyaHQ × UEW Roadshow
Instructor — Rust & Motoko Smart Contract Development at UEW
ICP Community Meetup Host at UEW
Startup Incubation Workshop Facilitator at UEW Innovation Hub — British Council
Speaker & Organizer at Sui Overflow UEW Summit
Sharing My Journey as a Dev3pack Fellow & AOC Scholar at Devconnect
Speaking on ZK & Web3 Engineering at ETH Enugu
Web3 & Blockchain Education Session at GI-KACE
Mentorship Dinner with Celo Founder Marek Olszewski — Buenos Aires
Demo Day — Hackathon Project Showcase at ETHGlobal Argentina
MOU Signing Ceremony — Aya × UEW Partnership with Prof. Dake & Eric Annan
Networking with AyaHQ Founders Eric Annan & Michael Lawal at Devconnect Argentina
Pitching SuiVerify at Sui 3-Day Developer Bootcamp at AyaHQ
Lisk Founders Hangout at Aleph Hub — Buenos Aires, Argentina
ZK Summit & Governance Day at Universidad Católica Argentina
Panelist at Africa Blockchain Summit — Engaging Government Leaders & Ministers in Johannesburg
Keynote: Positioning African Builders to Create Impactful Solutions — ETH Enugu Nigeria
African Scholars Cohort at Devconnect Argentina
Hacking & Building at ETH Enugu Hackathon — Nigeria
Representing Ghana at ETH Enugu Conference 2025
Networking with Kotani Pay Founders, VISA Executives & BlocksFi at Africa Blockchain Summit
Google Cloud Roadshow 2025 — Google Accra
Builders & Residents Hangout at ETHiopia
Technical Deep-Dive with Blockradar Founder Stanley Morgan on Blockchain Infrastructure