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 (2â3 days per week in the office) from our locations in Krakow, 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 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 experience with Core Java and java application development for Restful web services
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)
Benefits
Multisport card and MyBenefit program;
Medical care;
Language courses;
Career in the multinational company;
Opportunity to take part in international projects and gain experience with various businesses;
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