Backend Developer

Job description

Backend Developer We are looking for a Senior Backend Developer responsible for designing, building and maintaining scalable backend systems, APIs and integrations. Responsibilities: Design, develop and maintain scalable backend services and APIs Build and optimize GraphQL-based APIs and data layers Develop serverless functions and event-driven components (FaaS) Integrate with external systems including third-party APIs and OPC UA industrial servers Work with data storage solutions and ensure performance, reliability, and scalability Manage and evolve backend infrastructure and service architecture Write clean, maintainable, and well-documented code Requirements - Technical Skills: Strong experience with Node.js in production systems Solid understanding of GraphQL (schemas, resolvers, query optimization) Experience with ORM tools and relational data modeling Hands-on experience with FaaS (Function-as-a-Service) architectures Experience integrating with: Third-party REST/GraphQL APIs OPC UA servers and industrial data systems Strong knowledge of PostgreSQL: Schema design: Query optimization: Indexing strategies: Experience with S3-compatible object storage (e.g., MinIO) Strong exper...