S

Senior Backend Developer (Blockchain/Web3)

solflare • Croatia
Remote
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Develops and maintains scalable backend infrastructure for a Solana self-custody wallet, focusing on APIs, databases, and cloud services. Requires 4+ years of backend experience with Node.js, PostgreSQL, and cloud platforms. Collaborates with engineering teams to build high-performance systems for a crypto wallet app.

Key Highlights
4+ years of backend development experience required
Focus on web2/web3 technologies, Node.js, PostgreSQL, and cloud platforms
Collaborative environment with emphasis on teamwork and adaptability
Key Responsibilities
Design and implement scalable backend services
Develop APIs and integrate third-party services and Solana RPCs
Manage databases (PostgreSQL, MongoDB) and ensure data integrity and security
Implement caching mechanisms using Redis
Deploy and manage applications on cloud platforms
Utilize BullJS for background job processing and Cron for scheduling tasks
Write unit and integration tests using Jest
Collaborate with frontend developers and other team members
Stay updated with the latest trends and technologies in web development and blockchain
Design and implement a microservices architecture
Technical Skills Required
Node.js PostgreSQL Cloud Platforms (Google Cloud Platform, DigitalOcean)
Nice to Have
Familiarity with blockchain technologies, specifically Solana
Proficiency in machine learning concepts
Experience in designing and optimizing backends to handle large volumes of data

Job Description

About Us

Solflare is a Solana self-custody wallet that puts people in control of their digital assets. Around 4 million users control $20 billion in funds through our wallet.

Job Description

The role

As a Senior Backend Developer, you will be responsible for developing and maintaining the backend infrastructure of our applications, ensuring high performance, security, and scalability. You’ll work closely with the rest of the engineering team to tackle complex technical challenges and build solutions that can handle the unique demands of a crypto wallet app.

Core Responsibilities

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