Full Stack Developer II

About Avici

Avici is a fintech startup changing the way people use stablecoins. Our platform enables easy spending, saving of stablecoins through an integrated solution featuring a DEFI wallet & Visa credit card.

Our purpose is to decrease the influence of central banks by building distributed internet banking infrastructure

Role Overview

We’re looking for a Full Stack Developer with strong backend and frontend experience to join our core engineering team. The ideal candidate should be confident working with Node.Js , MySQL , MongoDB , and Next.Js , while having a good understanding of blockchain concepts and libraries like Web3.Js or Viem .

You’ll be working closely with the founders to build secure APIs, scalable backend systems, and intuitive front-end interfaces for wallets, transactions, and dashboards.

Key Responsibilities

• Develop, optimize, and maintain backend APIs using Node.Js and Express .
• Design scalable database schemas and queries using MySQL and MongoDB .
• Build front-end interfaces and dashboards using Next.Js and React .
• Integrate smart contract interactions via Web3.Js or Viem for ERC-20 tokens and on-chain activities.
• Work with authentication layers, middleware, and session management (JWT, Web3Auth, etc.).
• Collaborate with product and design teams to deliver smooth UX across mobile and web.
• Write clean, maintainable, and testable code (TypeScript preferred).
• Implement caching, queues, and performance optimization for API endpoints.
• Participate in code reviews, architecture discussions, and deployment automation (Docker, Nginx).

Requirements

Good to Have

Perks