ESPHome Engineer – Advanced Configuration & Device Integration

SMLIGHT develops cutting-edge smart home and IoT hardware, including Zigbee, Matter, and multi-radio hubs, smart LED controllers, and modular Wi-Fi devices.
Our devices run platforms such as ESPHome, Linux-based SMHUB-OS, SLZB-OS and custom firmware, ensuring flexibility, transparency, and integration with major ecosystems like Home Assistant.
We are now looking for an ESPHome Engineer — someone who lives and breathes YAML, understands the internals of ESPHome, and can transform complex hardware configurations into efficient, elegant, and maintainable firmware builds.
What will you do
Design and maintain ESPHome configurations (.yaml) for new and existing devices (Zigbee coordinators, LED controllers, IR transmitters, sensor modules, etc.)
Implement and optimize device logic, sensors, communication buses, and peripherals (UART, I²C, SPI, ADC, PWM, GPIO, etc.)
Develop modular and reusable YAML templates for product lines and internal projects
Ensure firmware compatibility across multiple hardware variants (ESP32, ESP32-S3, etc.)
Collaborate with hardware and firmware engineers to map pinouts, components, and features
Integrate device configuration with Home Assistant, MQTT, and API endpoints
Maintain clear structure, documentation, and versioning for all YAML builds
Test, debug, and validate configurations on physical hardware
Provide input for future hardware designs to improve ESPHome compatibility
Requirements
Proven experience with ESPHome (advanced YAML configuration, custom components, lambda usage)
Deep understanding of ESP32 / ESP8266 microcontrollers and hardware interfaces (UART, I²C, SPI, ADC, PWM, GPIO, etc.)
Knowledge of Home Assistant, MQTT, and related smart-home ecosystems
Experience debugging hardware-related issues (logs, compile errors, pin conflicts, etc.)
Strong skills in structuring and documenting ESPHome projects
Ability to work independently and propose improvements to hardware/firmware integration
Familiarity with electronics schematics, sensors, and peripheral modules
Basic knowledge of Python / C++ (for ESPHome custom components) is a plus
English proficiency for communication with the engineering team
Nice to have
Experience with Matter, Zigbee2MQTT, or Tasmota
Familiarity with Jinja templates and YAML modularization
Prior contributions to ESPHome community or public repositories
Experience working with LED controllers, IR devices, or multi-radio hubs
Please submit your application by this link:  https://forms.gle/gUeGaQVb6kpeoyjb9