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Senior AI Engineer (LLM/RAG/LangChain/LangGraph)

Role overview

Qualifications

  • 3+ years of experience in AI/ML engineering or data science roles
  • Expertise in designing agentic AI systems, including autonomous or multi-agent architectures
  • Strong programming background in Python and AI/ML frameworks
  • Proficiency with LangChain and LangGraph frameworks for building advanced AI tools

Responsibilities

  • Design and implement agentic AI systems, including autonomous and multi-agent architectures, optimized for production-grade environments
  • Utilize LangChain and LangGraph frameworks in designing interactive AI-driven systems
  • Apply RAG (Retrieval-Augmented Generation) evaluation techniques to improve AI efficiency and performance
  • Develop scalable, high-performance backend solutions in Python optimized for data-driven AI applications

Key facts

  • Remote from: Ukraine, Europe, EMEA
  • Full time
  • Senior (5-10 years)
  • AI Engineer
  • English

Hard skills

Other skills

  • Analytical Skills
  • Problem Solving
  • Collaboration
  • Adaptability

About the company

EPAM Systems logo

EPAM Systems

  • IT Services & Consulting
  • XLarge
  • 10,001+
Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has used its software engineering expertise to become a leading global provider of digital engineering, cloud and AI-enabled transformation services, and a leading business and experience consulting partner for global enterprises and ambitious startups. We address our clients’ transformation challenges by fusing EPAM Continuum’s integrated strategy, experience and technology consulting with our 30+ years of engineering execution to speed our clients’ time to market and drive greater value from their innovations and digital investments. We make GenAI real with our AI LLM orchestration, testing and engineering solutions, EPAM DIAL, EPAM EliteA™ and EPAM AI/RUN™, respectively. We deliver globally, but engage locally with our expert teams of consultants, architects, designers and engineers, making the future real for our clients, our partners and our people around the world. We believe the right solutions are the ones that improve people’s lives and fuel competitive advantage for our clients across diverse industries. Our thinking comes to life in the experiences, products and platforms we design and bring to market. Added to the S&P 500 and the Forbes Global 2000 in 2021 and recognized by Glassdoor and Newsweek as a Top 100 Best Workplace, our multidisciplinary teams serve customers across six continents. We are proud to be among the top 15 companies in Information Technology Services in the Fortune 1000 and to be recognized as a leader in the IDC MarketScapes for Worldwide Experience Build Services, Worldwide Experience Design Services and Worldwide Software Engineering Services. Learn more at www.epam.com.

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Job description

We are looking for an experienced Senior AI Engineer who is passionate about designing and developing scalable agentic AI solutions. This role will focus on leveraging LangChain/LangGraph frameworks, RAG evaluation, vector databases, and advanced data engineering practices, alongside Python and AWS expertise, to deliver innovative AI-driven systems. Responsibilities Design and implement agentic AI systems, including autonomous and multi-agent architectures, optimized for production-grade environments Utilize LangChain and LangGraph frameworks in designing interactive AI-driven systems Apply RAG (Retrieval-Augmented Generation) evaluation techniques to improve AI efficiency and performance Develop scalable, high-performance backend solutions in Python optimized for data-driven AI applications Drive cloud-based deployments and manage infrastructure, leveraging AWS services for scalability and reliability Integrate vector database technologies to enable advanced data retrieval and storage capabilities for LLM workflows Optimize AI-driven systems by developing and implementing efficient algorithms and data structures Analyze, debug, and troubleshoot system bottlenecks, ensuring smooth operation of deployed AI solutions Collaborate with cross-functional teams to ensure seamless integration of the AI systems into larger platforms Manage end-to-end AI product development lifecycles, from concept to deployment Document system architectures, workflows, and processes for knowledge sharing and maintenance Stay up-to-date with advancements in AI and machine learning to continuously innovate and refine solutions Requirements 3+ years of experience in AI/ML engineering or data science roles Expertise in designing agentic AI systems, including autonomous or multi-agent architectures Strong programming background in Python and AI/ML frameworks Proficiency with LangChain and LangGraph frameworks for building advanced AI tools Solid experience with AWS and deploying scalable AI systems in cloud environments Background in machine learning methodologies, algorithms, and data structures design Competency in leveraging relational and non-relational database systems, especially vector databases, for AI applications Strong analytical skills with a focus on solving complex, real-world problems efficiently Capability to work in fast-paced environments with a solutions-driven mindset Excellent command of written and spoken English (B2+ level) Nice to have Familiarity with .NET for data integration or adjacent system development

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