Senior AI & Agentic Systems Engineer (Java)

EPAM Systems, Inc.; Kraków; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Health insurance

Hybrid work model

Relocation opportunities

Employee Stock Purchase Plan

English classes

Job summary

EPAM Systems, Inc. in Poland is seeking a Senior AI & Agentic Systems Engineer (Java) to design, develop, and deploy AI-powered applications and agentic systems. You will integrate LLMs into enterprise Java backends and architect autonomous workflows for multi-step tasks.

The role requires strong Java/Spring Boot experience, REST API design skills, and collaboration with跨-functional teams. Hybrid work model with three in-office days in Kraków, Wrocław, or Gdańsk, Poland.

Qualifications

• 5+ years of professional software development with a strong Java backend focus.
• Hands-on Spring Boot production-grade experience.
• Experience with AI Agents development or LLM integration.
• Experience with REST APIs following industry best practices.
• Proficiency in English (B2+) for international collaboration.

Responsibilities

• Design, develop, and deploy AI-powered applications and agentic systems built on Java/Spring Boot backends.
• Integrate Large Language Models (LLMs) into enterprise-grade applications for reliability and scalability.
• Architect autonomous AI agent workflows capable of reasoning, planning, and executing tasks.
• Build RESTful APIs to interface AI components with broader ecosystems.
• Collaborate with data scientists, ML engineers, and product teams to productionize AI concepts.

Skills

Java backend

Spring Boot

AI Agents development

LLM integration

REST API design

Python for AI scripting

Cloud (AWS/GCP)

English communication

Tools

LangChain4J

Spring AI

Anthropic Claude Code

Google ADK

Job description

We are looking for a Senior AI & Agentic Systems Engineer (Java) to join our team at EPAM Systems in Poland.This is a unique opportunity to work at the intersection of enterprise Java development and cutting-edge AI. We are looking for engineers who bring a strong backend foundation and a genuine passion for building intelligent, autonomous systems powered by Large Language Models and agentic architectures. If you're excited about shaping the future of AI-driven software and want to apply your Java expertise to build the next generation of intelligent applications — we want to hear from you.This position offers a hybrid work model — combining remote work with 3 days per week from one of our EPAM offices located in Kraków, Wrocław, or Gdańsk. This setup allows you to enjoy flexibility while staying connected with your team and benefiting from in-person collaboration.ResponsibilitiesDesign, develop, and deploy AI-powered applications and agentic systems built on top of robust Java/Spring Boot backendsIntegrate Large Language Models (LLMs) into enterprise-grade applications, ensuring reliability, scalability, and securityArchitect and implement autonomous AI agent workflows capable of reasoning, planning, and executing multi-step tasksDesign and build RESTful APIs that serve as interfaces between AI components and broader application ecosystemsEvaluate, select, and integrate AI frameworks and tools (e.g., Spring AI, LangChain4J) to accelerate development of intelligent featuresCollaborate with data scientists, ML engineers, and product teams to translate AI concepts into production-ready solutionsDevelop and refine prompt engineering strategies to optimize LLM outputs for specific business use casesContribute to architectural decisions regarding AI system design, model orchestration, and data pipelinesParticipate in code reviews, ensuring high-quality and maintainable code across AI and backend componentsStay current with the rapidly evolving AI landscape and advocate for adoption of new tools, patterns, and best practicesMentor team members on AI integration patterns and agentic system development approachesRequirementsMinimum of 5 years of professional experience in software development with a strong Java backend focusSolid hands-on experience with Spring Boot for building production-grade, enterprise applicationsProven experience in designing and developing REST APIs following industry best practicesDemonstrated experience in AI Agents development or LLM integration — including building applications that leverage large language models for reasoning, content generation, or task automationExperience with Spring AI or LangChain4J frameworks for building AI-powered Java applicationsPractical knowledge of Prompt Engineering techniques — crafting, testing, and optimizing prompts for consistent and reliable LLM behaviorWorking knowledge of Python for AI/ML scripting, prototyping, or integration with Python-based AI toolingExperience with AWS or GCP cloud platforms, particularly services related to AI/ML workloads and scalable application deploymentStrong understanding of software architecture principles and the ability to design systems that combine traditional backend services with AI componentsExcellent communication skills and the ability to work effectively in cross-functional, international Agile teamsProficiency in English (B2+), both written and spokenNice to haveExperience implementing Retrieval-Augmented Generation (RAG) pipelines for grounding LLM responses in domain-specific knowledgeFamiliarity with Vector Databases (e.g., Pinecone, Weaviate, pgvector, Chroma) for storing and querying embedding representationsKnowledge of Model Context Protocol (MCP) for standardized communication between AI models and external tools or data sourcesExperience working with Anthropic Claude Code or similar AI-assisted development tools in engineering workflowsFamiliarity with Google Agent Development Kit (ADK) for building and orchestrating multi-agent systemsWe offerWe gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusivelyEPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.