Job Title: Embedded Hardware / Firmware Engineer Industrial Instruments & Sensor Interfaces

Company: LABTECH ELECTRONICS PRIVATE LIMITED
Location: Gerugambakkam, Chennai
Employment: Full-time, in office
Experience: 3–8 years; senior candidates with complete product development experience will also be considered
Qualification: B.E./B.Tech/M.E./M.Tech in Electronics, Electronics & Communication, Instrumentation, Embedded Systems, or a related discipline
Compensation: Based on relevant experience and demonstrated technical capability

About Labtech

Labtech Electronics Private Limited manufactures process instruments and provides industrial instrumentation, automation, and remote monitoring solutions. Our product portfolio includes flow meters, liquid and gas analysers, level instruments, transmitters, sensor interfaces, and industrial IoT products.

We are expanding our R&D; team to develop indigenous hardware and firmware, complete ongoing product designs, and establish production-ready products with in-house design ownership.

Role Overview

We seek hands-on engineers who can develop reliable industrial electronic products from requirements and circuit design through embedded firmware, calibration, validation, and manufacturing handover.

Openings are available for hardware-focused and firmware-focused engineers. Candidates with strong capabilities in both disciplines are particularly welcome.

Key Responsibilities

- Review existing designs, identify technical gaps, and complete hardware and firmware development.
- Translate product specifications into practical electronic architectures and development plans.
- Develop sensor interface boards, signal-conditioning circuits, transmitter electronics, and communication modules.
- Integrate sensors for flow, pressure, temperature, level, and liquid/gas analysis, depending on the assigned product.
- Develop measurement, filtering, linearisation, temperature compensation, calibration, diagnostics, and fault-handling functions.
- Build and debug prototypes; verify measurement accuracy, repeatability, stability, and communication performance.
- Address industrial operating conditions, including electrical noise, power disturbances, temperature variation, and field wiring faults.
- Support component selection, alternate sourcing, BOM optimisation, and design for manufacturing and testing.
- Prepare and maintain design files, source code, test procedures, calibration procedures,



and production documentation.
- Work with production, application, and service teams to resolve field issues and improve product reliability.
- Maintain company-controlled repositories and complete technical handover for every assigned design.

Embedded Hardware Engineer – Required Skills

- Hands-on experience in analog, digital, and mixed-signal circuit design and antennas.
- Precision signal conditioning using operational amplifiers, instrumentation amplifiers, filters, ADCs, DACs, and voltage references.
- Experience with low-level sensor signals, grounding, shielding, isolation, and noise reduction.
- Design of 4–20 mA inputs/outputs, 0–10 V interfaces, pulse/frequency interfaces, and RS485 communication circuits.
- Microcontroller-based circuit design and PCB development using Altium Designer, KiCad, OrCAD, or equivalent tools.
- Power supply design, including DC–DC converters, LDOs, reverse-polarity protection, surge protection, and ESD protection.
- PCB layout practices for precision measurement, EMC performance, and industrial reliability.
- Board bring-up, soldering/rework, and debugging using oscilloscopes, multimeters, logic analysers, and signal sources.
- Preparation of schematics, PCB manufacturing files, BOMs, and assembly/test instructions.

Embedded Firmware Engineer – Required Skills

- Strong Embedded C programming and practical microcontroller debugging experience and monitor programming.
- Experience with STM32, Microchip PIC/dsPIC, TI MSP430/C2000, NXP, or comparable MCU platforms.
- Development of peripheral drivers using ADC, DAC, timers, interrupts, DMA, UART, SPI, and IC.
- Implementation and debugging of Modbus RTU and RS485 communication.
- Experience with bare-metal firmware and/or an RTOS such as FreeRTOS.
- Measurement processing, digital filtering, calibration routines, engineering-unit conversion, and non-volatile parameter storage.
- Watchdog handling, fault recovery, diagnostics, and reliable startup behaviour.
- Bootloaders, firmware upgrades, and version control using Git.




- Ability to write structured, maintainable code and document firmware architecture and interfaces.

Preferred Experience

Experience in one or more of the following will be an advantage:

- Industrial transmitters, process instruments, smart sensors, or precision measurement equipment.
- Two-wire, loop-powered 4–20 mA transmitters and HART integration.
- RTD, thermocouple, bridge/mV, pulse, frequency, or high-impedance electrochemical sensor interfaces.
- pH/ORP, conductivity, dissolved oxygen, gas sensing, or optical analyser electronics.
- Electromagnetic, ultrasonic, thermal mass, vortex, or differential-pressure flow measurement.
- Ethernet, CAN, Modbus TCP, MQTT, and industrial IoT connectivity.
- Low-power design, galvanic isolation, environmental testing, and EMC pre-compliance testing.
- Production calibration fixtures, automated functional testing, and pilot-batch support.

Candidates are not expected to have experience in every sensor technology. Strong fundamentals and relevant product development experience are essential.

Expected Deliverables

- Working prototypes meeting agreed functional and measurement requirements.
- Released schematics, PCB files, BOMs, and documented firmware source code.
- Calibration methods and validation reports.
- Production test procedures and manufacturing handover documents.
- Resolution of issues identified during pilot production and field trials.

Candidate Profile

We value engineers who demonstrate practical problem-solving, ownership, disciplined documentation, and the ability to complete designs. Applicants should be able to explain their personal contribution to at least one working embedded product.

How to Apply

Send your CV to [email protected].

Email subject: Application – Embedded Hardware Engineer / Embedded Firmware Engineer

Please include your current location, relevant experience, current and expected CTC, notice period, and a brief description of two relevant projects. Describe only information you are authorised to share.

Naukri Key Skills:
Embedded Systems, Embedded C, Firmware Development, Hardware Design, Analog Circuit Design, Sensor Interfacing, Signal Conditioning, PCB Design, STM32, Microcontrollers, ADC, DAC, RS485, Modbus RTU, 4–20 mA, SPI, I2C, UART, FreeRTOS, Board Bring-up, Industrial Instrumentation, Calibration, Product Development.

📌 Embedded Hardware and Firmware Engineer - Industrial Instruments (Chennai)
🏢 labtech electronics
📍 Chennai