Senior AI & Java Engineer - Payments Technology project

Position: Senior AI&Java Engineer Payment Technology project
Location: Krakow, Wroclaw, Warsaw
Type of work: Hybrid (2-3 days per week in office)- obligatory
Contract: only contract of employment
Salaries: base+ financial bonus

Please note: for this role we can not consider candidates who require company support to legally live and work in Poland

Join a leading payments technology company that powers billions of secure transactions across more than 200 countries and territories. We are committed to innovation, inclusion, and enabling the future of money movement. Our team is focused on building cutting-edge B2B SaaS products within the Value-Added Services (VAS) division, supporting dispute management solutions and merchant strategies.

• Develop and deploy AI agents using GenAI, LLMs, LangChain, LangGraph, and related frameworks
• Build agentic workflows and tools in multi-agent environments
• Design and implement microservices using Java, Spring Boot, Kafka, and MySQL
• Author and maintain APIs, ensuring performance and scalability
• Apply test-driven development practices and conduct code reviews
• Support CI/CD pipelines and deployments across development, staging, and production
• Troubleshoot production and security issues
• Participate in architecture design and documentation
• Write and optimize database queries and fix bugs in existing codebases
• Contribute to large-scale application design and deployment procedures

• BS in Computer Science or related field, plus 7+ years of relevant experience
• Strong analytical, organizational, and problem-solving skills
• Proven experience with GenAI, LLMs, and AI agent deployment
• 6+ years of Python experience in AI development
• 7+ years of Java experience, including RESTful web services
• Deep knowledge of Spring Framework, Spring Boot, and build tools like Maven
• 5+ years of experience with Kafka and reactive/event-driven programming
• Solid understanding of OOP design principles and design patterns
• Experience with multi-threading and concurrency
• Familiarity with CI/CD tools like Jenkins, Docker, and Kubernetes (preferred but not required)

• Product requirement creation
• Scrum Master or Product Owner responsibilities

• Multisport card and MyBenefit program
• Medical care
• Career in the multinational company
• Opportunity to take part in international projects and gain experience with various businesses
• Set of social benefits to choose from
• Salary adequate to your competencies + quarter bonus
• Training program