Senior Python Engineer — MCP Protocol & Tool Integration

We are looking for a Senior Python Engineer to implement MCP protocol servers and agent tool integrations for an Enterprise Agent Development Platform — a production-grade, cloud-native ecosystem that enables engineering teams to define, orchestrate, deploy, and observe AI agents at scale. The platform standardizes agent development across the organization using LangGraph and Strands Agents on AWS AgentCore Runtime. The initiative spans agent framework design, runtime architecture, marketplace integration, CI/CD automation, and enterprise-grade observability, reducing agent development from months to days while enforcing consistent security, quality, and governance standards.

Responsibilities

• Implement MCP protocol servers supporting Streamable HTTP transport, tools/list, tools/call, and capability negotiation
• Develop MCP server and client components using Python async programming, async HTTP, and streaming responses
• Build agent tool integrations following function calling, tool schema definition, and parameter validation patterns
• Configure MCP target types, including Lambda functions as tools, remote MCP servers, and OpenAPI-to-MCP translation
• Manage tool metadata, including schema registration, capability tagging, and versioning
• Register targets within AWS AgentCore Gateway for agent tool discovery
• Translate existing APIs into MCP-compliant tool interfaces
• Collaborate with engineering teams to standardize tool integration patterns across the platform

Requirements

• 3+ years of Python engineering experience with agent/AI systems
• Hands-on experience implementing MCP (Model Context Protocol) servers or clients in a production agentic AI project, such as tools/list and tools/call handling, AWS AgentCore Gateway target registration, or Lambda-as-tool / OpenAPI-to-MCP translation
• Showcase of tool integrations built for LLM agents, including OpenAI functions, LangChain tools, or equivalent
• Skills in implementing async HTTP services and streaming protocols
• Expertise in AWS Lambda development
• English proficiency at B2 level or higher

Nice to have

• Experience implementing MCP protocol (server or client)
• Familiarity with LangChain / LangGraph tool integration
• Background in AWS Bedrock AgentCore Gateway target registration
• Knowledge of semantic tool indexing, including embedding generation for tool descriptions
• Familiarity with agent framework integration (Strands, Crew, AutoGPT)

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