Home Assistant Python Developer for Hardware

Nabu Casa

34d•Remote

About The Position

Nabu Casa is seeking a Home Assistant Senior Python Integration Engineer for Hardware to manage the Python software layer that connects Nabu Casa's hardware products to the Home Assistant ecosystem. This role operates at the intersection of hardware and software, focusing on creating integrations and device support code for seamless operation of physical Nabu Casa devices within Home Assistant. The engineer will collaborate closely with the Hardware team and Embedded Linux Developer, with their work directly impacting the user experience upon device setup. The primary goal is to ensure Nabu Casa products and services function smoothly within Home Assistant, ESPHome, and the broader Open Home ecosystem, focusing on the client-side integration and application layer rather than low-level hardware or firmware development. The role involves working with large, evolving codebases and requires a strong understanding of interconnected components and long-term maintenance.

Requirements

Strong Python development experience, including async/await, testing frameworks, type annotations, and scalable software architecture patterns.
Meaningful experience contributing to large open-source projects, including public pull requests, code review, and asynchronous collaboration workflows.
Experience building integrations, APIs, automation systems, device communication layers, or software for connected devices.
Comfortable working across software and hardware boundaries, including understanding device protocols and hardware interaction concepts.
Familiarity with local device and communication protocols such as Bluetooth, Zigbee, USB, UART, mDNS, SPI, I2C, MQTT, or similar technologies.
Ability to quickly understand unfamiliar systems and navigate large, complex codebases.
Strong debugging and troubleshooting mindset across integrations and distributed systems.
High autonomy and ownership mindset — able to independently drive integrations from concept through long-term maintenance.
Comfortable collaborating across distributed teams, cultures, and time zones in a highly asynchronous environment.
Open to feedback — able to take on review comments and adapt.
Community-oriented mindset — comfortable contributing publicly and collaborating with external contributors in open-source environments.
Strong written communication skills and ability to explain technical concepts clearly.
Quality-focused while remaining pragmatic and delivery-oriented.

Nice To Haves

Familiarity with Home Assistant, ESPHome, integrations, config flows, entity models, or related Open Home ecosystem projects.
Previous contributions to Home Assistant, ESPHome, or related Open Home Foundation projects.
Experience building software for smart home, IoT, or connected hardware products.
Raspberry Pi or embedded Linux ecosystem familiarity.
Experience maintaining software used at large scale across distributed hardware environments.
Experience working in fully remote and async-first engineering teams.

Responsibilities

Own integrations and software support for Nabu Casa products across Home Assistant, ESPHome, and related Open Home Foundation ecosystems throughout the full product lifecycle.
Build and maintain Python integrations, proxy libraries, and software components that connect Nabu Casa products to the Home Assistant and ESPHome ecosystems.
Write and maintain Python software that interfaces with device protocols and hardware peripherals, translating low-level behavior into clean Home Assistant entities and user experiences.
Collaborate closely with the Embedded Linux OS Engineer and Hardware team to understand hardware capabilities and translate them into well-structured software integrations.
Contribute to Home Assistant core, ESPHome, and related projects where needed to support integrations, config flows, entity models, and platform functionality.
Own code quality within your areas by writing well-tested, maintainable, and well-documented Python code.
Review community pull requests and issues related to owned integrations, providing clear and constructive feedback.
Investigate and resolve software and integration issues including protocol edge cases, compatibility problems, regression bugs, and device communication failures.
Maintain healthy unit, integration, and hardware-in-the-loop test coverage where applicable.

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.
An annual smart home budget to ensure you keep up-to-date with the latest smart homes offer.
An annual education budget to help you grow and stay on top of your game.
A yearly performance bonus based on company performance.
A 50% contribution to your internet connection fee at your home workspace.
One day every two weeks to work on your personal projects.
Work time to maintain Home Assistant-related side projects if applicable.
Benefits required by the country you reside in.