Senior Fullstack Developer

Nasze wymagania: Strong experience designing and building backend services, with the ability to handle frontend changes when required. Practical knowledge of Angular sufficient to deliver full features across the stack (expert level not required). Proven commercial experience with Node.js and TypeScript in production backend systems. Hands-on experience working with databases such as PostgreSQL and OpenSearch, including data handling and processing tasks (ETL pipelines, asynchronous jobs, data cleanup). Solid approach to automated testing, including unit and integration tests integrated with CI workflows. English — B2; Polish C1 Mile widziane: Knowledge of GraphQL and/or AWS AppSync, including concepts such as pipeline resolvers or VTL. Experience working with search or data matching systems, including relevance scoring and highlighting mechanisms. Familiarity with event-driven architectures. Experience with Nx monorepo environments. Experience working with CI/CD pipelines (e.g., GitLab or similar platforms). O projekcie: Work for one of our international clients. Design and drive the backend architecture while contributing to full-stack feature development. Zakres obowiązków: Design and drive the backend architecture while contributing to full-stack feature development using Node.js, TypeScript, and Angular. Build and maintain reliable and scalable backend services, ensuring stability and performance in production environments. Work with PostgreSQL and OpenSearch to design schemas, optimize queries, and support data-intensive workflows. Develop and maintain ETL pipelines, asynchronous processing tasks, and data maintenance scripts. Implement and maintain automated testing strategies (unit and integration tests) to support stable and CI-ready deployments. Oferujemy: Long-term project Flexible working hours