Java Fullstack Developer

ITFS is a consulting company from the Tricity area with a branch in Warsaw. It focuses primarily on IT specialist recruitment and creating project-based Software House solutions for clients in Poland and Western Europe.

• Knowledge of frontend: React
• Experience building web applications with conversational elements (chat): response streaming, conversation history, user feedback, source/justification presentation
• Experience in backend development: Java – designing and developing API services
• Basic knowledge of BigQuery/SQL
• Ability to design ergonomic UI for data: tables, charts, drilldown, export results
• Practice in teamwork: Git, code review, quality standards, documentation, tests (unit/integration/e2e)
• Experience in production environment: CI/CD, monitoring/logging, incident response
• Willingness to collaborate with AI Engineer and data teams (API contracts, data formats, validations, cost constraints)

Nice to have:

• Knowledge of semantic/metrics layer solutions: semantic layer, caching, pre-aggregations, metrics governance

• Knowledge of "conversational analytics" tools / product patterns for "chat with data": citations, "show SQL", explore vs answer modes, trust scoring

• Knowledge of UI and data visualization libraries

• Knowledge of GCP: Cloud Run, Pub/Sub

• Basics of containerization and deployments: Docker/Kubernetes

• Experience in regulated environments (banking): audit, compliance, data classification, security processes

• Required knowledge: Java, REST API

• Languages: Polish, French

• Designing and developing web applications using Java (backend) and React (frontend framework)
• Creating and integrating REST APIs
• Database management and ensuring application performance and security
• Collaborating with teams including testers, DevOps, and UX during implementation, testing, and system maintenance