Backend Developer
HybridBelgrade, Central Serbia, Serbia
Belgrade, Central Serbia, SerbiaHybridFull TimeSmall
Full TimeSmall
Job Summary
Design and implement scalable backend services, APIs, and microservices architecture using Node.js, Express.js, and PrismaJS. Manage PostgreSQL and MongoDB databases with Redis caching, ensuring data integrity while deploying applications on Google Cloud Platform and DigitalOcean. Utilize BullJS and Cron for background job processing, and write unit and integration tests with Jest to maintain code quality. Collaborate with frontend developers to integrate solutions that handle high-volume data and complex technical challenges within Solflare's growing Web3 wallet infrastructure.
Required Qualifications
- Minimum of 4 years of experience in backend development with a focus on web2/web3 technologies
- Proficient in Node.js, Express.js, PostgreSQL, MongoDB, Redis, and PrismaJS
- Experience with cloud services (Google Cloud Platform, DigitalOcean) and DevOps practices
- Experience with unit and integrations test using Jest
- Knowledge of event-based architecture, microservices design patterns, and ability to design scalable systems
- Excellent problem-solving skills and attention to detail
- Strong communication and collaboration skills
Desired Qualifications
- Familiarity with blockchain technologies, specifically Solana, is a plus
- Proficiency in machine learning concepts and experience in applying them to real-world problems
- Experience in designing and optimizing backends to handle large volumes of data efficiently
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