Senior Python Engineer (MCP Protocol & Tool Integration)

Quick Facts

• Role: Senior Python Engineer (MCP Protocol & Tool Integration)

Description

You will implement MCP protocol servers and agent tool integrations for an enterprise, cloud-native AI agent development platform. The work includes building MCP server/client communication (async HTTP with streaming), designing tool integrations via function calling and tool schemas, and registering MCP tool/target types such as Lambda functions and OpenAPI-to-MCP translation.

Responsibilities

• Implement MCP protocol servers and clients, including tools/list and tools/call handling

• Design and maintain agent tool integrations using function calling, tool schema definition, and parameter validation

• Build and register MCP target types (e.g., Lambda functions as tools, remote MCP servers, OpenAPI-to-MCP translation)

• Develop async HTTP services and streaming responses for MCP server/client communication

• Manage tool metadata: schema registration, capability tagging, and versioning

• Handle capability negotiation and Streamable HTTP transport within MCP

• Standardize agent tool integration patterns across the platform with other engineering teams

• Support AWS AgentCore Gateway target registration for agent tool connectivity

Requirements

• 5+ years of Python engineering experience with agent/AI systems

• Production hands-on experience implementing MCP servers or clients in an agentic AI project (tools/list and tools/call handling, AWS AgentCore Gateway target registration, Lambda-as-tool / OpenAPI-to-MCP translation)

• Experience building tool integrations for LLM agents (e.g., OpenAI functions, LangChain tools)

• Proficiency in Python async programming, async HTTP services, and streaming protocols

• Expertise in AWS Lambda development

• Understanding of agent tool integration patterns (function calling, tool schema definition, parameter validation)

Benefits

• Career development programs

• Mentoring, soft skills and well-being programs

• Certification (Anthropic, Gemini, GCP, Azure, AWS)

• English classes

• Stable pay and Employee Stock Purchase Plan (15% discount)

• Health insurance, multisport, shopping vouchers

• Referral bonuses up to $2,000

• Hybrid-by-design mode with opportunity to work remotely within Poland; chance to work abroad up to 60 days annually

• Business-driven relocation opportunities