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Python Developer

Technology
X4 Engineering
TodayUntil 6/9/2026
Full timeFully remote

Job description

Senior Python Software Engineer - AI An early-stage AI platform company building the connective tissue for the next generation of AI systems is looking for a

Senior Python Software Engineer to take ownership of their developer-facing integration layer.

This role sits at the heart of the platform, focused on building SDKs that enable developers to connect AI agents into a multi-agent communication system in minutes rather than weeks.

You will design and evolve a production-grade Python SDK used by external developers, implementing adapters for leading agent frameworks, integrating with frontier model APIs, and helping shape emerging agent-to-agent communication standards.

The position places a strong emphasis on API ergonomics, developer experience, and reliability, while tackling genuinely bleeding-edge challenges where protocols and best practices are still still being defined.

Key Requirements

  • 7+ years of professional Python development with AI/ML focus.
  • Proven background building and maintaining SDKs, libraries, or developer tools used by external teams.
  • Familiarity with AI / LLM frameworks such as LangChain, LangGraph, Pydantic AI, AutoGen, or similar.
  • Experience scaling systems on AWS/cloud platforms.

Nice to Have

  • Exposure to agent-to-agent protocols (A2A, MCP, ACP) or distributed messaging standards.
  • Multi-language experience (TypeScript, Go, Rust, Elixir).
  • Contributions to open-source AI or developer tooling projects.
  • Startup or early-stage experience, comfortable operating with ambiguity and speed.
Keywords
pythonartificial-intelligenceai-platformaws-sdksplanning-and-designvisual-art-designproduct-development-and-designsoftware-development-kitapplication-programming-interface-apiergonomicsdeveloper-experiencepolicies-and-practicestraining-and-developmentmachine-learningdeveloper-toolslarge-language-model-llmlangchainlanggraphamazon-web-servicesmicrosoft-certificationmodel-context-protocol-mcpagile-certificationamerican-college-of-physicians-acptypescriptmicrosoft-typescriptgolangrustelixiropen-sourcestartups

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