Senior Python Engineer

OpenHome Foundation

Job Overview

Location

Europe - Anywhere

Job Type

Full-time

Full Job Description

📋 Description

• The Open Home Foundation is seeking a passionate Senior Python developer, based in Europe, to join our Home Assistant department as a full-time Software Engineer.
• This team is responsible for the open development, maintenance, and enhancement of the Home Assistant platform; supporting new functionality aligned with our roadmap and enabling the wider community to contribute and innovate easily.
• Home Assistant is a highly popular open-source project, the largest open source project on GitHub by the number of contributors we have each year.
• As a result, we also receive many open-source contributions.
• In this role, you will work closely with the open-source community to review contributions and ensure seamless integration into our platform.
• Your main daily tasks will involve bringing Home Assistant to the next level of AI capabilities.
• You will help build the foundation on which AI features across our platform are created: the APIs and interfaces that let language models work with the home, Assist - our assistant that people talk to or chat with, in-product agents, and the open standards (such as the Model Context Protocol) that connect Home Assistant to the wider agentic world.
• Always private, local-first, and by choice.
• This is not a list of features to deliver, but a long-term direction to help shape: AI is becoming part of how people use and manage their homes, and Home Assistant will lead that in the open.
• You will ensure the successful integration of features that align with our mission to build a more private, open, and sustainable smart home ecosystem.

🎯 Requirements

• 5+ years of experience working in Python back-end development.
• 3+ years of experience working with asyncio and threading.
• Built and shipped LLM-powered features in production Python: tool calling, agent loops, streaming, evaluation, and handling the many ways models fail.
• Experience building with the Model Context Protocol: you have designed and implemented MCP servers or clients, or comparable tool-calling interfaces for agents.
• Experience with local, on-device inference (e.g., Ollama, llama.cpp).
• A pragmatic view on AI: you know what language models are great at, where they fall flat, and how to design systems that stay reliable, private, and safe regardless.

🏖️ Benefits

• Five weeks (twenty-five days) of paid time off.
• Fourteen days of paid sick leave if your country/laws treat them as unpaid.
• Six weeks of paid and six weeks of unpaid parental leave to be used in the first year after birth.
• A budget for your work hardware once you start.
• A 50% contribution to your internet connection fee at your home workspace.
• One day every two weeks to work on your personal projects.
• If you are currently working on Home Assistant-related side projects, you can spend work time maintaining them.
• A total compensation package that matches the 75th percentile for the new hire's role, seniority, and local market rates.

Skills & Technologies

Python

JavaScript

C++

GitHub

Git

Senior

Remote

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OpenHome Foundation

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About OpenHome Foundation

OpenHome Foundation is a non-profit organization that stewards the OpenHome open-source voice assistant and smart-home ecosystem. It provides reference hardware designs, software frameworks, privacy-respecting cloud services, and governance policies so that individuals and companies can build interoperable, local-first smart-home devices without vendor lock-in. The foundation hosts the codebase, coordinates contributions, certifies compatible products, and advocates for user privacy and open standards in connected homes.

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