Senior Web3 Full-Stack Engineer • Solidity, React, DeFi

VanEck; Tampa (FL); Hybrid; USD 120,000 - 200,000; Full time

Job summary

VanEck in Tampa seeks an experienced Senior Full-Stack Engineer to architect and build scalable full-stack applications for SegMint.io and other Web3 initiatives. You will develop backend services in Node.js/Go, create responsive frontend with React/Next.js, and integrate on-chain interactions through Solidity and Web3 libraries.

This role requires 5+ years in full-stack development with 2+ years in Web3, proficiency in EVM smart contracts, and experience with cloud platforms and DevOps.

Qualifications

• 5+ years of full-stack engineering experience, with at least 2+ years in Web3/blockchain development.
• Experience with EVM-based smart contracts, Solidity, Hardhat, Foundry, and Web3.js/Ethers.js.
• Experience working with web3 frontend tools such as wagmi, viem, and ethers.js
• Understanding of DeFi, token standards (ERC-20, ERC-721, ERC-1155), and on-chain transactions.
• Experience with cloud services (AWS, GCP, or Azure) and DevOps tools (Docker, Kubernetes, CI/CD).
• Familiarity with IPFS, decentralized storage, and Layer 2 scaling solutions.
• Strong problem-solving skills and ability to work autonomously in a high-growth, experimental environment.

Responsibilities

• Lead Development: Architect and build scalable full-stack applications supporting SegMint.io and other Web3 initiatives.
• Smart Contracts & Web3 Integration: Develop and integrate smart contracts (Solidity, Rust) and Web3 APIs for on-chain interactions.
• Backend Development: Design and implement robust backend services (Node.js, Go) with database solutions (PostgreSQL, MongoDB).
• Frontend Development: Develop high-performance, user-friendly interfaces using React, Next.js, TypeScript.
• Blockchain and Marketplace Infrastructure: Work with backend and database infrastructure that support indexing of smart contract events using Subgraphs or other blockchain data querying methods
• Security & Compliance: Implement best practices in secure coding, smart contract auditing, and data protection.
• Scalability & Performance: Optimize applications to handle increased transaction loads and improve overall system efficiency.
• Mentorship & Leadership: Guide junior engineers, conduct code reviews, and contribute to a culture of engineering excellence.

Skills

Full-stack

Web3

Solidity

Hardhat

Foundry

Ethers.js

Web3.js

wagmi

viem

ERC-20

ERC-721

ERC-1155

Layer 2

AWS

Docker

Kubernetes

CI/CD

IPFS

DeFi

Tools

AWS

GCP

Azure

Job description

VanEck in Tampa seeks an experienced Senior Full-Stack Engineer to architect and build scalable full-stack applications for SegMint.io and other Web3 initiatives. You will develop backend services in Node.js/Go, create responsive frontend with React/Next.js, and integrate on-chain interactions through Solidity and Web3 libraries.

This role requires 5+ years in full-stack development with 2+ years in Web3, proficiency in EVM smart contracts, and experience with cloud platforms and DevOps.