Frontend Web3 Engineer

Kubelt; Paris; Sur place; EUR 45 000 - 65 000; Plein temps

Résumé du poste

A blockchain technology firm is seeking a Frontend Engineer to develop user-friendly decentralized applications. The ideal candidate will use React and TypeScript to build interfaces, focusing on simplifying interactions with complex blockchain technology. Responsibilities include managing deployments and collaborating with backend engineers to ensure software integration. The firm emphasizes quality from the beginning and encourages product-oriented approaches.

Qualifications

• Strong proficiency in React and TypeScript is required.
• Experience with EVM smart contracts is a must.
• Familiarity with wallet connection and Web3 flows is valued.

Responsabilités

• Develop and maintain React/TypeScript dapps.
• Implement wallet connection and Web3 authentication flows.
• Work alongside backend developers for integration.

Connaissances

React

TypeScript

EVM smart contracts

Web3 authentication

UI/UX design

Outils

ethers.js

web3.js

The Graph

Description du poste

Job Description

This position is in Zama’s Protocol Apps team

Zama recently unveiled the Zama Confidential Blockchain Protocol, which enables confidential smart contracts on top of any blockchain L1 or L2, using Fully Homomorphic Encryption (FHE). The Protocol Apps team is responsible for building multiple dapps and services that enshrine the protocol, effectively serving as one of its first users.

We are looking for a Frontend Engineer to build intuitive interfaces for our decentralized applications, spanning DeFi, governance, and more. You'll be the bridge between complex blockchain infrastructure and everyday users—translating smart contract functionality into reliable user experiences.

This role focuses exclusively on frontend development, though you'll collaborate closely with our smart contract and backend engineers to ensure tight integration across the stack.

What you will do:

• Develop and maintain React/TypeScript dapps that interact with EVM smart-contracts using libraries such as ethers.js, viem, or web3.js

• Implement wallet connection and Web3 authentication flows (MetaMask, Coinbase Wallet, Privy, etc.)

• Work alongside backend developers to integrate off-chain APIs and indexing services (The Graph, Goldsky, custom indexers)

• Contribute to UI/UX decisions that simplify complex blockchain interactions for non-technical users

• Manage frontend deployments (using platforms like Vercel, Netlify, or similar), CI/CD pipelines, and environment configurations across staging and production

• Build for quality from day one: make the app testable in CI and production-safe

• Collaborate across dev teams: turn partner/dev feedback into rapid UI iterations

• Be strongly product-oriented