Java Fullstack Developer

Place of work:
Poland, Mazovian Voivodeship, Greater Poland Voivodeship

Form of employment: B2B with ITFS

Category: IT

• Position:
  Java Fullstack Developer
• Location:
  
  hybrid, once a week from the client's office in Warsaw or Poznań
• Start date:
  
  June 1, 2026
• Form of cooperation: B2B with ITFS, long‑term cooperation
• Rate: PLN 120-140 net + VAT/h
• Working hours:
  
  standard (8:00 AM - 4:00 PM)
• Client: banking industry
• Recruitment process: phone call with ITFS (approx. 20 min.) → technical interview with the Client's Tech Leader → decision making

• Design and development of web applications in Java (backend) and React using the frontend framework.
• Creating and integrating APIs (REST), maintaining databases, and ensuring application performance and security.
• Collaborating with the team (testers, Dev Ops, UX) on system implementation, testing, and maintenance.

• Frontend knowledge:
  React
• Experience in building web applications with conversational elements (chat): response streaming, conversation history, user feedback, presentation of sources/justifications
• Backend experience:
  Java – design and development of API services
• Basic knowledge of working with Big Query/SQL
• Ability to design ergonomic UI for data: tables, charts, drilldown, export results
• Teamwork experience:
  Git, code review, quality standards, documentation, testing (unit/integration/e2e)
• Experience in a production environment: CI/CD, monitoring/logging, incident response
• Willingness to collaborate with AI Engineers and data teams (API contracts, data formats, validations, cost constraints)

• 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‑viz libraries
• Knowledge of GCP:
  Cloud Run, Pub/Sub
• Basics of containerization and implementation:
  Docker/Kubernetes
• Experience in a regulated environment (banking): audit, compliance, data classification, security processes

• Transparent terms of cooperation
• Opportunity to work on a development project
• Optional benefits (co‑financing for Enel‑med and Multisport healthcare packages, and a basic accounting package – free for up to three invoices per month)