Senior Developer

About OpenVector

We build at the intersection of Web3, AI, fintech, and security, creating secure and scalable infrastructure and applications for the next generation of decentralized products.

We're looking for a Senior Full Stack Web3 Developer to take ownership of critical product initiatives across frontend, backend, and blockchain systems. You will help drive technical decisions, build scalable infrastructure, and contribute to the development of secure Web3 products.

What You’ll Do

• Lead the development and delivery of end-to-end product features across frontend, backend, and blockchain integrations
• Architect and implement wallet, dApp, and Web3 infrastructure components
• Design and maintain scalable RESTful and/or GraphQL APIs
• Collaborate cross-functionally with product, design, and security
• Own the deployment lifecycle from development to production
• Review code, improve engineering standards, and mentor junior developers
• Contribute to architecture decisions with a security-first mindset

Must Have

• Strong proficiency in C/C++, understanding of API design, distributed systems, and backend architecture
• Strong proficiency in JavaScript, TypeScript, and modern software engineering practices
• Strong understanding of data structures, system design, and backend problem solving
• Experience with Docker and containerized deployment workflows
• Experience workinng with MongoDB, PostgreSQL, or similar databases
• Understanding of Web3 fundamentals including wallets, smart contracts, and blockchain transactions
• Hands-on Web3 development experience in production environments

Good to Have

• Rust, Kubernetes, WebAssembly, GraphQL
• Exposure to crypto wallets, key management, or security-sensitive applications
• Exposure to security reviews, audits, or security-focused development practices
• Testing experience using Jest, Playwright, Cypress, or equivalent frameworks

Benefits

• Flexible work environment (hybrid)
• In-office meals and refreshments
• Health Insurance