Senior Fullstack Engineer (Web3)

Location: USA and Global; hybrid work format

Company

D3 is building a purpose-built blockchain for DomainFi, enabling domain tokenization and decentralized finance applications for the domain name industry.

What you will do

• Design, develop, and optimize frontend and backend components for dApps, domain registrars, and domain marketplaces.
• Build frontend features with Next.js, TypeScript, React, GraphQL, HTML, and CSS.
• Develop Web2/Web3 integrations, wallet connections, and interfaces for blockchain-based naming technologies.
• Implement backend services for registrar features, domain tokenization, marketplaces, and fiat and crypto payment processing.
• Build scalable APIs and event-driven asynchronous systems using Kafka, RabbitMQ, or similar tools.
• Write tests, review and debug code, optimize reliability and performance, and contribute to open-source SDKs.

Requirements

• 5+ years of frontend development experience with React, Vue, or Angular.
• 5+ years of backend development experience with Node.js and MySQL or PostgreSQL.
• Experience building scalable distributed production systems, APIs, microservices, and event-driven architectures.
• Experience with Web3 libraries such as web3.js, ethers.js, or wagmi, plus a basic understanding of blockchain architecture and smart contract interaction.
• Knowledge of responsive and mobile-first design, CSS frameworks, Git, Agile methodologies, and CI/CD practices.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field, along with strong communication and problem-solving skills.

Nice to have

• Smart contract development with Solidity.
• React Native or mobile development experience.
• Familiarity with EPP, NestJS, GraphQL, accessibility design, or DevOps technologies such as Kubernetes and AWS.

Culture & Benefits

• Opportunity to work in an ultra-early-stage company on zero-to-one initiatives.
• Mentorship and collaboration with experienced internet and domain-industry leaders.
• Work at the intersection of internet infrastructure, real-world assets, and blockchain.
• Opportunity to shape open-source SDKs and foundational products for the DomainFi ecosystem.