Backend Engineer/Node.js, AWS, Solana, Ethereum

We are seeking a Backend Engineer to join our team and contribute to building scalable, high-performance backend systems. The role focuses on developing RESTful and GraphQL APIs, working with microservices and AWS Lambda functions, and integrating with Solana and Ethereum blockchains. The position requires extensive experience with Node.js and AWS services, including Lambda, ECS, RDS, and more.

The tech stack includes Node.js as the primary language (with Golang as a plus), databases like DynamoDB with AppSync and PostgreSQL on AWS RDS, and frameworks including Express and NX monorepo. The role heavily involves working with AWS services and blockchain technologies, particularly Solana (using Helius RPC, Anchor framework, SPL token, and Metaplex Core) and Ethereum.

The ideal candidate will have 3+ years of backend development experience, strong problem-solving skills, and a deep understanding of backend development. They should be comfortable working in an Agile development environment and collaborating closely with frontend engineers, DevOps, and the product team.

Key responsibilities include developing APIs, designing scalable architecture, building internal tools, monitoring production systems, and ensuring code quality through comprehensive testing. The role offers the opportunity to work with cutting-edge blockchain technology while building high-performance, distributed systems in a remote-first environment based in Europe.