Nezzar Kefif
Fullstack engineer with 8 years of experience, building things I enjoy using — from traditional web work to shipping fun onchain products.
Experience
Superfluid
Jan 2024 — Dec 2025Freelance & Builder Program
- Shipped production dapps on the Superfluid money-streaming protocol across Base and Ethereum.
- Built developer tooling and SDK integrations around real-time finance primitives.
- Owned features end to end — from Solidity contracts and subgraphs to React frontends and CI pipelines.
Peanut
Sep 2024 — Dec 2024Full Stack Developer (Freelance)
- Built frontend features and wallet integrations for link-based crypto payments.
- Implemented token transfer and claim flows across multiple EVM chains.
Futures Factory
2022 — 2023Full Stack Developer
Developed a web3 marketplace bridging digital fashion brands and onchain assets.
Sismo
2021 — 2022Full Stack Developer
Built core web apps for privacy-preserving identity — ZK badge minting and attestation flows.
Theodo
2020 — 2021Full Stack Developer
Delivered web & mobile apps (React, React Native, Node) for enterprise clients in agile teams.
La Pilule Rouge
2018 — 2020Full Stack Developer
Built interactive web experiences and immersive digital products.
Projects
Astroblock
Jun 2024 — PresentFounder
- Founded and build lightweight, composable onchain infrastructure for games, economies and stories.
- Own the full stack: Solidity contracts (Foundry), subgraphs, TypeScript SDKs and Next.js apps.
- Run product, engineering and infrastructure end to end, with automated CI/CD.
0xSlots
Jan 2026 — PresentFounder (previously AdLand)
- Designing a modular collective-ownership protocol (Harberger taxes) making onchain assets productive.
- Building contracts, indexing and frontends in a pnpm/Turborepo monorepo with automated CI.
Skills
Languages
Frontend
Backend
DevOps
AI
Onchain