Backend Developer

About the role

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

Key responsibilities

• Design and implement scalable backend services and micro‑services architecture.
• Develop RESTful APIs and integrate third‑party services, including Solana RPCs.
• Manage PostgreSQL and MongoDB databases, ensuring data integrity and security.
• Implement caching with Redis and use PrismaJS for efficient data access.
• Deploy and operate applications on DigitalOcean and Google Cloud Platform.
• Handle background processing with BullJS and schedule tasks via Cron.
• Write unit and integration tests using Jest to guarantee code quality.
• Collaborate closely with frontend developers and other team members for seamless integration.

Required profile

• Minimum 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 for background jobs
• Cron scheduling
• Micro‑services and event‑based architecture design
• Familiarity with Solana RPC integration (optional but beneficial)