Our client s is a global leader in next-generation digital services and consulting. They enable clients in more than 50 countries to navigate their digital transformation. With over three decades of experience in managing the systems and workings of global enterprises, they expertly steer their clients through their digital journey. They do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change.
For an innovative new initiative within the global payment technology sector, we are actively seeking a highly skilled and forward-thinking
Senior AI & Java Engineer
to join our team. This role is perfect for an experienced professional who excels in developing intelligent, scalable systems and enjoys working with cutting-edge technologies such as GenAI, LLMs, and agentic workflows. The successful candidate will play a key role in building next-generation B2B SaaS solutions that power secure and seamless financial transactions worldwide.
You will work in a hybrid model (2–3 days per week in the office) from our locations in Cracow, Wroclaw or Warsaw.
Responsibilities :
- 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
Requirements :
BS in Computer Science or related field, plus 7+ years of relevant experienceStrong analytical, organizational, and problem-solving skillsProven experience with GenAI, LLMs, and AI agent deployment6+ years of Python experience in AI development7+ years of experience with Core Java and java application development for Restful web services7+ years of Java experience, including RESTful web servicesDeep knowledge of Spring Framework, Spring Boot, and build tools like Maven5+ years of experience with Kafka and reactive / event-driven programmingSolid understanding of OOP design principles and design patternsExperience with multi-threading and concurrencyFamiliarity with CI / CD tools like Jenkins, Docker, and Kubernetes (preferred but not required)Benefits :
Multisport card and My Benefit program;Medical care;Language courses;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;Training program.