About Oizom Oizom builds environmental monitoring hardware and software — air quality, noise, vibration, and gas-sensing products deployed in the field across multiple markets. Our product line spans Polludrone (ambient air quality), Sonicbot (Class 1 noise monitoring), Seismibot (ground vibration), OGS (electrochemical gas sensing), Sensorbox, and AirOwl (our open-source ESP32-based air quality monitor). Our R&D; team spans Industrial Design, Design Engineering, Embedded Hardware, and Embedded Firmware.

Role Summary We're hiring an Embedded Hardware Engineer to design and bring up analog and digital electronics for our sensor products. This is a primarily hands-on role — schematic capture through board bring-up and field validation — with room to mentor junior engineers and interns as the team grows.

Key Responsibilities

- Design schematics and PCB layouts for sensor front-ends, power supplies, and MCU carrier boards (ESP32, STM32, CM4-based designs)
- Select and qualify components — sensors, analog front-ends, power ICs, connectors — balancing cost, availability, and field-reliability requirements
- Bring up new boards: power-on validation, signal integrity checks, debugging with oscilloscope/logic analyzer, and root-causing failures
- Design and validate power supply stages (buck/boost/LDO, battery charging, solar/MPPT where applicable) for field-deployed, often battery- or solar-powered devices
- Work with Embedded Firmware on sensor interfacing (I2C, SPI, UART, RS-485/Modbus, SDI-12) and debug hardware/firmware boundary issues together




- Support DFM/DFT reviews with Design Engineering and coordinate with contract manufacturers during pilot builds
- Run environmental and reliability testing (thermal, humidity, vibration) relevant to outdoor-deployed monitoring equipment
- Maintain schematics, BOMs, and design documentation to a standard other engineers can pick up

Required Skills & Experience

- 3–5 years of hands-on embedded hardware design experience, from schematic capture through bring-up
- Proficiency with a professional EDA tool (KiCad or Altium) for schematic and PCB design
- Strong analog and digital circuit design fundamentals — power regulation, signal conditioning, sensor front-ends, MCU support circuitry
- Working knowledge of ESP32 and/or STM32 reference designs and their power/peripheral requirements
- Comfortable with lab bring-up and debug: oscilloscope, multimeter, logic analyzer, bench power supply
- Understanding of common embedded communication interfaces: I2C, SPI, UART, RS-485
- Familiarity with DFM principles and working directly with contract manufacturers
- Ability to read datasheets and application notes and translate them into working designs
- Experience with battery-powered or solar/MPPT-charged field electronics
- Exposure to analog front-ends for gas or electrochemical sensing
- Familiarity with EMI/EMC pre-compliance testing and design for compliance
- Experience with environmental/outdoor-rated enclosure and connector selection
- Prior experience in a startup or small-team R&D; setting where you owned a design end-to-end

📌 Embedded Hardware Engineer (Ahmedabad)
🏢 Oizom
📍 Ahmedabad