Senior Software AI Developer (Business Intelligence)

XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America. At XTB, we focus on the development of our employees, giving them opportunities to gain knowledge and skills in various fields, as well as offering a number of training and development programs. If you are looking for challenges and want to gain valuable experience in an international business environment, XTB is the right place for you.

We are a certified Great Place to Work company.

We are looking for an experienced Software Developer to join the Business Intelligence team and help develop internal analytical applications and tools that combine traditional BI with generative AI - used daily by business departments across the organization.

We are building a platform that embeds interactive Power BI reports in the browser, enables analytics, and expands into the AI space. You will be the person leading this direction: from designing RAG pipeline architectures and integrating LLM models to delivering natural language data querying capabilities for end users.

• Strong experience with Python and frameworks such as FastAPI or Django
• Good knowledge of React / TypeScript
• Experience integrating LLMs or GenAI solutions into production systems
• Understanding of RAG architectures, vector databases, and document retrieval workflows
• Practical experience with Docker and CI/CD pipelines
• Familiarity with cloud platforms such as Azure, AWS, or GCP
• Strong understanding of relational databases and business data modeling
• Ability to make architectural decisions independently and mentor other engineers

Nice to have:

• Experience with LangChain, LangGraph, or similar frameworks
• Knowledge of Power BI / Power BI SDK and Microsoft ecosystem
• Experience with Databricks or modern data platforms

• Designing and developing analytical web applications used across the organization
• Building scalable backend services and APIs using Django / FastAPI (Python)
• Developing modern and intuitive user interfaces for analytical and business applications
• Working with business stakeholders and teams to deliver new features and improve existing solutions
• Designing and implementing integrations with internal systems and data sources
• Ensuring application performance, scalability, and code quality through best engineering practices
• Contributing to architectural decisions, CI/CD processes, and technical standards within the team
• Driving the development of AI-powered features, including integrations with LLMs, RAG pipelines, and intelligent data workflows, while helping shape the technical direction of AI solutions across the platform