EPAM Systems

Join EPAM Vietnam as an AI Engineer (LLM) and help shape the future of AI-powered retail decision-making. You will design agent workflows, prompt and retrieval logic and production-ready services that turn data into grounded, traceable recommendations for business users. Working with cutting-edge AI technologies, structured business data and real-world retail challenges, you will play a key role in creating impactful, scalable and user-centric GenAI experiences that deliver measurable business value.

Responsibilities

• Translate category management needs into LLM and GenAI use cases and workflows
• Design agent orchestration including prompt strategy, retrieval, tool calling and state handling
• Build back-end services and APIs for LLM applications using FastAPI and Python
• Integrate LLM providers such as Azure OpenAI and OpenAI with streaming, retries and cost controls
• Implement retrieval patterns with chunking, metadata, citations and relevance tuning
• Define evaluation approaches for relevance, grounding, safety, latency and cost
• Improve quality through testing, observability, feedback loops and iteration
• Partner with product, data, engineering and business stakeholders to ship usable features

Requirements

• Proven experience with Python back-end development, async patterns and FastAPI
• Hands-on work integrating Large Language Model (LLM) APIs such as Azure OpenAI or OpenAI
• Knowledge of LangChain or LangGraph for agent orchestration and tool workflows
• Expertise designing tool or function calling, from schemas to retries, confirmation flows and payload contracts
• Experience implementing Retrieval-Augmented Generation (RAG) with traceable sources and robust evaluation
• Ability to manage agent state through checkpointing, resumability and session handling
• Understanding of secure design for LLM applications, from secrets management to access control and prompt leakage prevention
• Clear communication with technical and business partners

We offer/Benefits

• By choosing EPAM Vietnam, you're getting a job at a Vietnam Best Workplace™ certified company (2022-23 and 2023-24)
• You'll work with the latest and most advanced technologies on exciting global projects with a supportive multicultural team where your voice matters
• We prioritize a healthy work-life balance with a flexible hybrid working model and generous annual leave of up to 19 days
• We offer a transparent career path and an individual roadmap to engineer your future & accelerate your journey
• At EPAM, you can find vast opportunities for self-development: access to over 25,000 online courses and libraries from industry leaders, English classes, mentoring programs, partial grants of certification, and experience exchange with colleagues around the world. You will learn, contribute, and grow with us

Life at EPAM

• EPAM Systems, Inc. (EPAM) is a leading digital transformation services and product engineering company. Since 1993, we have used our 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.
• Established in 2019, EPAM Vietnam has been constantly expanding our team and capabilities with two offices in Ho Chi Minh City and Hanoi. We offer a multicultural environment where our tech talents can proactively develop world-class solutions directly with international clients. At EPAM Vietnam, we adopt a global growth strategy, thinking and acting like start-ups, working in multi-disciplinary teams, and delivering results. You’ll find interesting challenges typically dealt with at a start-up, yet you’ll be in a highly professional corporate setting.
• Learn more at www.epam.com and follow us on facebook.

How we hire

Here, we summarize the typical journey to finding a job within EPAM:

• Step 1: General interview with our talent attraction specialist
• Step 2: Technical interview with our technology experts*
• Step 3: Manager interview with a hiring manager
• Step 4: Client interview**
• And you are ready to join the team!
• Not sure if you meet all the requirements? No problem. Let’s talk anyway and find out more!
• It takes 1 min of application to start the journey with us. Apply now!
• Certain positions may necessitate entry tests tailored to specific client and project requirements.
• A project-specific interview may precede the client interview to assess project fit.