Jonas Sebera
Blockchain Engineer at Vaultic Trust
Kigali, Kigali City, Rwanda
Summary
🤩
Rockstar🎓
Top SchoolJonas Sebera is a blockchain engineer based in Kigali with three years of hands-on experience building and securing smart contract systems across Ethereum, Layer 2s, and EVM-compatible networks. He combines deep Solidity and Foundry/Hardhat expertise with full-stack dApp integration using Next.js and viem/ethers to deliver production-grade solutions for supply chain, tokenization, and on-chain data integrity. Jonas has moved rapidly from developer to founder and technical lead roles—running Stone Proof Labs, leading development at Web3 Mates, and launching web platforms for Tarsier Safaris—showing both entrepreneurial drive and operational execution. He’s experienced in designing role-based access controls, conducting smart contract audits, and streamlining developer onboarding and support for Web3 tooling. Known among peers as a pragmatic “degen” builder, he balances experimental Web3 work with a focus on scalable, auditable systems that bridge on-chain innovation to real-world business needs.
3 years of coding experience
1 year of employment as a software developer
High School Diploma, Computer Software Engineering, High School Diploma, Computer Software Engineering at Rwanda Coding AcademyComputer Software Engineering | Web3 Specialization, Computer Software Engineering | Web3 Specialization at CourseraSmart Contracts Security, Smart Contracts Security at Cyfrin UpdraftWeb3 and Blockchain Development, Web3 and Blockchain Development at MetanaWeb3 Application Development, Web3 Application Development at Rise In
English
Github Skills (52)
backend8
github-api8
typescript8
javascript8
electron7
solidity7
responsive-design7
remix-ide7
ethereum7
blockchain7
remix7
smart-contracts7
ethereum-contract6
nodejs6
server6
Programming languages (7)
Github contributions (5)
0xJonaseb11/web3mates.com
Jul 2025 - Apr 2026
Blockchain Catalyst - Community Website
Contributions:48 PRs, 91 pushes, 5 branches in 8 months
blockchainethereumweb3
0xJonaseb11/0xJonaseb11.dev
Oct 2023 - Jan 2026
My professional career portfolio website | Skill set show case
Contributions:3 PRs, 174 pushes, 2 branches in 2 years 3 months
dynamicformsmuireactjsresponsive-designreusable
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