Career Opportunity

Hardware Engineer

Help us build the next generation of accessible IoT sensors that bring environmental STEM education to classrooms and communities nationwide.

Remote / Hybrid (NC preferred)

Full-time or Contract

Equity Available

About the Role

As a Hardware Engineer at Tonalli Systems, you will be responsible for designing, prototyping, and scaling the physical sensors that power our PlantPulse platform. You will work closely with our software team to ensure seamless integration between hardware and our mobile-friendly web dashboard.

Responsibilities

Design and prototype ESP32-based sensor hardware for environmental monitoring
Develop and optimize firmware for low-power, reliable sensor operation
Collaborate with the software team on hardware-software integration
Source components and manage relationships with manufacturing partners
Create documentation and assembly guides for production scaling
Test and validate hardware in real-world educational environments

Requirements

3+ years of experience in embedded systems or hardware engineering
Proficiency with ESP32, Arduino, or similar microcontroller platforms
Experience with PCB design and prototyping
Knowledge of sensor integration (soil moisture, temperature, light sensors)
Familiarity with wireless protocols (Wi-Fi, BLE)
Strong debugging and problem-solving skills

Nice to Have

Experience designing for manufacturing at scale
Background in environmental sensing or agricultural technology
Familiarity with enclosure design and 3D printing
Experience with low-power design and battery management

Ready to Apply?

Send your resume, portfolio of hardware projects, and a brief note about why you are excited about this role.

Apply Now