Junior Embedded Engineer

Onsite · Bengaluru · ECE / EEE / Instrumentation / related branches

City Greens is a fast-growing AgriTech startup building automation and AI-driven solutions for Controlled Environment Agriculture (CEA). Our platforms combine hardware, IoT, and AI to help modern farms, institutions, and agri-enterprises improve productivity, efficiency, and sustainability.

We design and build the electronics that run commercial farms — control panels, sensor networks, dosing and irrigation controllers, and the IoT devices that connect physical farm hardware to our software platform.

Role overview

We are looking for motivated embedded engineers to join our onsite hardware team. You will work on live, production-grade devices — writing firmware, integrating sensors and actuators, and building the controllers that growers and farm operators depend on every day. This is not a training internship. You will be contributing to real products from week one.

What you will do

Firmware development

Write and maintain firmware for microcontroller-based devices (ESP32, STM32, Arduino-class). Implement reliable control logic for sensors, pumps, valves, and dosing systems deployed in the field.

Sensor & hardware integration

Interface with analog and digital sensors (EC, pH, temperature, humidity, flow, level) and actuators. Handle communication protocols — I2C, SPI, UART, RS485/Modbus — and bring up new hardware from bare board to working device.

IoT & connectivity

Connect devices to our platform using MQTT and real-time data streams over WiFi/GSM. Build firmware that reports device state accurately and responds to remote commands reliably.

Testing, debugging & collaboration

Test and debug on real hardware using multimeters, oscilloscopes, and logic analyzers. Work within a structured team using GitHub for version control and code reviews. Write clean, maintainable code and share regular progress updates.

Requirements

Requirements

Who this role is for

Engineering graduates or final-year students in ECE, EEE, Instrumentation, or related branches
Self-learners who have built things — personal projects, academic projects, or hobby electronics
Engineers who want to work on real deployed hardware, not breadboard demos
Individuals who take ownership of tasks, communicate proactively, and follow through

Key skills & traits

Required

Solid understanding of embedded C / C++
Microcontroller programming (ESP32, STM32, Arduino, or similar)
Reading schematics and datasheets, and basic circuit understanding
Serial communication protocols — I2C, SPI, UART
Hands-on debugging with multimeter / oscilloscope
Problem-solving mindset and ability to debug independently

Good to have

MQTT or other IoT data protocols
RS485 / Modbus for industrial devices
PCB design (KiCad / Eagle / Altium)
RTOS basics (FreeRTOS)
Python for test scripts or tooling
Any hardware project you can demonstrate or show working

Benefits

What we offer

Internship-to-full-time pathway

This role begins as a 3-month onsite, unpaid internship focused on real contribution and performance. Interns who demonstrate technical ability, ownership, and consistent delivery will be offered a full-time position.

Starting salary

₹25,000 / month

Coverage

Health insurance

Work on production hardware — not sandbox projects
Exposure to IoT-integrated, real-time control systems
Structured code review and mentorship from the hardware team
Growth into senior firmware, hardware design, or platform roles

Junior Embedded Engineer (Internship to Job)

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