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EPAM Systems

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Senior Java / Full-Stack Engineer (Cloud & AI)

Summary

Build scalable Java backends with Spring Boot and integrate GenAI features (RAG, LLMs) using AWS/Azure; contribute to React/Angular frontends for AI-driven interfaces.

We are looking for a Senior Java Engineer with a strong interest or experience in Full-Stack development (React/Angular) to join our Cloud & AI practice. In this role, you will be responsible for hands-on development of modern, highly scalable Java applications integrated with advanced Artificial Intelligence capabilities. You will work closely with architects and AI specialists to implement GenAI features, RAG architectures, and cloud-native services. Having the ability to contribute to the frontend UI is a big plus, but not a strict blocker.

Responsibilities

  • Write high-quality, clean, and testable Java code using Spring Boot and microservices architecture
  • Integrate Large Language Models (LLMs) and Generative AI capabilities into the Java backend using frameworks like LangChain4j or Spring AI
  • Deploy, configure, and manage application services in AWS (ECS, Lambda, Bedrock) or Azure (Azure OpenAI, Azure Functions, CosmosDB)
  • Contribute to frontend development using React or Angular to build and wire intuitive user interfaces for AI-driven features (e.g., chat interfaces, dashboards)
  • Implement and optimize database queries, including vector search (PGVector, Pinecone, or Qdrant) for RAG-based systems
  • Conduct thorough code reviews, write unit/integration tests, and ensure compliance with security and performance standards
  • Support and guide junior and middle developers within the team

Requirements

  • 4+ years of commercial software development experience with Java and Spring Boot
  • At least 1.5+ years of practical experience with AWS (ECS, Lambda, RDS) OR Azure (Azure Functions, App Services, SQL/NoSQL)
  • Hands-on experience with: Connecting applications to LLMs (OpenAI, Anthropic, Bedrock, or Azure OpenAI via APIs)
  • Hands-on experience with: Java-based AI libraries (e.g., LangChain4j, Spring AI)
  • Hands-on experience with: Basic understanding of RAG (Retrieval-Augmented Generation) and vector search concepts
  • Proficiency with Docker, SQL, CI/CD tools (Jenkins, GitLab CI, or GitHub Actions), and Git
  • English proficiency at B2 level or above
  • Strong analytical, debugging, and self-organization skills

Nice to have

  • Practical experience or a strong willingness to work with modern frontend technologies (React, Angular, or TypeScript) to deliver end-to-end full-stack features
  • Experience with data pipelines and basic model serving

Benefits

With us you can:

  • Work on a flexible schedule remotely or from any of our comfortable offices or coworking spaces in Ukraine
  • Receive the necessary equipment to perform your work tasks
  • Change projects and technology stacks within EPAM
  • Gain experience in various business domains (Insurance, E-commerce, Healthcare, Finance, Travelling, Media, Artificial Intelligence, and more)
  • Relocation opportunities may be available for eligible candidates, depending on the role and openings at other EPAM locations
  • Participate in volunteer, charity programs and communities (both technical and interest-based)

We focus on your professional growth:

  • You can plan your individual career path together with your manager
  • Receive regular feedback from colleagues
  • Improve your English for free with certified teachers (Speaking Clubs, client interview preparation courses, etc.)
  • Get the opportunity to undergo free training and certification in AWS, GCP, or Azure Clouds
  • Use the internal E-learn training program (18,200+ specialized training and mentoring programs)
  • Access corporate accounts on LinkedIn Learning, Get Abstract and other partner resources
  • Study at EPAM Solution Architecture School with the instructors who are practicing architects
  • Develop as a leader, join Delivery Management, Resource Management, Leadership Essentials school and more
  • Participate in internal communities (500+ meetups, technical discussions, brainstorming sessions, online events and conferences annually)

What we offer:

  • Vacation and sick leave (including a sick leave without a medical certificate)
  • A wide range of Voluntary Medical Insurance programs providing both medical treatment and various preventive options (including sports activities)
  • Medical insurance for family members at corporate rates
  • Company support during significant life events (childbirth or adoption, marriage, etc.)
  • Support for psychological comfort: discounts on services from mental health specialists or coaches, thematic training
  • E-kids program - a free programming language training program for EPAMers' children
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