Senior Java Developer (+React)

Devire Outsourcing IT is a collaboration model dedicated to IT specialists based on self-employment (B2B), delivering projects for clients running innovative and modern projects. The client is one of the largest banks in Poland.

• Knowledge of frontend technologies, especially React
• Experience building web applications with conversational elements (chat), including response streaming, conversation history, user feedback, and source presentation
• Experience building backend in Java technology, including API service design and development
• Basic knowledge of BigQuery and SQL
• Ability to design ergonomic user interfaces for data work (tables, charts, drill-down, export results)
• Experience working in a team using Git, code review, quality standards, documentation, and tests (unit, integration, e2e)
• Experience working in a production environment, including CI/CD, monitoring, logging, and incident handling
• Willingness to collaborate with AI Engineers and data teams on integration and data work

• Design and develop web applications in both frontend and backend layers
• Create and develop API services using Java technology
• Build and develop conversational analytics solutions (chat with data)
• Collaborate with AI and data teams on integration (API, data formats, validations, cost constraints)
• Design ergonomic user interfaces for data presentation (tables, charts, drill-down, export results)
• Participate in building and developing Data Lake and data warehouse (DWH) processes
• Create data flows (online and offline) in on-premise and GCP environments
• Optimize SQL queries on relational and warehouse databases
• Develop data loading solutions for structured and unstructured data
• Develop concepts and implement solutions according to business requirements
• Participate in resolving production incidents and problems
• Support testing and deployment of changes in data feeding processes
• Maintain and service deployed software
• Work according to the DevSecOps model