Backend Developer – Crypto Wallet Platform

About the role

Solflare is looking for a Backend Developer to help build and maintain the server‑side infrastructure of its fast‑growing crypto wallet. You will work with a talented engineering team to deliver high‑performance, secure, and scalable services that power millions of Web3 users.

Key responsibilities

• Design and implement robust, scalable backend services and micro‑services architecture.
• Develop and maintain RESTful APIs, integrate third‑party services and Solana RPC endpoints.
• Manage PostgreSQL and MongoDB databases, ensuring data integrity, security, and performance.
• Implement caching with Redis and handle background processing using BullJS and Cron.
• Deploy and monitor applications on cloud platforms such as DigitalOcean and Google Cloud Platform.
• Write unit and integration tests with Jest to guarantee code quality.
• Collaborate closely with frontend developers and other stakeholders for seamless integration.

Required profile

• At least 4 years of professional backend development experience.
• Strong problem‑solving abilities and attention to detail.
• Excellent communication and teamwork skills.

Required skills

• Node.js and Express.js
• PostgreSQL and MongoDB
• Redis
• PrismaJS
• Google Cloud Platform and DigitalOcean
• Jest for testing
• BullJS and Cron for background jobs
• Experience with micro‑services and event‑driven architecture