Senior Backend Developer – AI-Powered API Services

About the role

EPAM is looking for a Senior Backend Developer to join its AI Pods team. You will build reliable, AI‑powered API services and orchestrate language models within a secure, scalable environment.

Key responsibilities

• Design and implement backend API services with LLM orchestration layers.
• Construct and maintain advanced RAG pipelines for document ingestion, chunking, embedding and retrieval tuning.
• Develop and integrate agent tools using LangChain, LangGraph and potentially Model Context Protocol (MCP).
• Enforce security, privacy, observability and test coverage across all backend workflows.
• Drive architecture decisions and engineering standards within the pod.
• Collaborate with frontend, data, and infrastructure teams.
• Own API contracts and ensure service reliability, handling AI edge‑case failures gracefully.
• Provide reusable orchestration frameworks for downstream developers.

Required profile

• 3+ years of backend engineering experience with microservices and distributed systems.
• 2+ years of Python development for high‑performance, cloud‑native APIs.
• Strong expertise in AWS, Docker and ECS/EKS.
• Solid background in RESTful API design and secure coding practices, including authentication and authorization.
• Upper‑intermediate English proficiency (B2).

Required skills

• Python
• AWS
• Docker
• ECS/EKS
• RESTful API
• Microservices
• Distributed systems
• Secure coding
• Authentication & authorization
• LangChain
• LangGraph
• Model Context Protocol (MCP)
• RAG pipelines
• Document ingestion, chunking, embedding, retrieval
• Amazon Kendra
• OpenSearch
• Observability
• Test coverage

What we offer

• International projects with top brands.