Senior Python Engineer (MCP Protocol & Tool Integration)

Quick Facts

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

Description

Join as a Senior Python Engineer to build MCP protocol servers/clients and enterprise-grade tool integrations for AI agents. You will implement async HTTP streaming communication, define tool schemas with validation, and register MCP target types such as Lambda-as-tool and OpenAPI-to-MCP. The work supports platform standardization, governance, and improved agent development speed.

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 such as Lambda functions as tools, remote MCP servers, and OpenAPI-to-MCP translation
• Develop async HTTP services and streaming responses for MCP server/client communication
• Manage tool metadata (schema registration, capability tagging, versioning)
• Handle capability negotiation and Streamable HTTP transport within MCP
• Collaborate with engineering teams to standardize agent tool integration patterns across the platform
• Support AWS AgentCore Gateway target registration for agent tool connectivity

Requirements

• 5+ 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 (e.g., tools/list and tools/call handling, AWS AgentCore Gateway target registration, or Lambda-as-tool / OpenAPI-to-MCP translation)
• Experience building tool integrations for LLM agents (e.g., OpenAI functions, LangChain tools, or equivalent)
• Proficiency in Python async programming, async HTTP services, and streaming protocols
• Expertise in AWS Lambda development
• Understanding of agent tool integration patterns, including function calling, tool schema definition, and parameter validation

Benefits

• Growth opportunities: career development programs; mentoring and soft skills/well-being programs; certifications (Anthropic, Gemini, GCP, Azure, AWS); English classes
• Coverage: stable pay; Employee Stock Purchase Plan with a 15% discount; health insurance and additional benefits (Multisport, shopping vouchers); referral bonuses up to $2,000
• Culture and perks: hybrid/remote flexibility within Poland; chance to work abroad up to 60 days annually; supportive agile team culture; office amenities; corporate, social and well-being events
• Notes: benefits apply to employees only; B2B/contractor terms are agreed individually