Job Summary

The Electronics Controller Specialist will be responsible for the design, development, integration, testing, troubleshooting, and validation of electronic control systems used in Refroids cooling and thermal-management products.

The role will involve close collaboration with Mechanical, Thermal, Electrical, Firmware/Software, Product Development, Manufacturing, Quality, and Service teams to develop reliable controller and electronics solutions for cooling equipment. The ideal candidate should have hands-on experience in programable logic controllers, industrial automation, sensors, control systems, PCB/electronics, communication protocols, instrumentation, and product testing.

Experience

7-10 Years of Industry Experience

Responsibilities

- Electronics Architecture Product Development: Design and develop electronic control systems for cooling and thermal-management products.
- Define electronics architecture for CDUs, cooling systems, pumps, valves, fans, sensors, actuators, and monitoring systems.
- Select appropriate microcontrollers, processors, sensors, communication interfaces, drivers, relays, power supplies, and other electronic components.
- Develop system-level block diagrams, schematics, wiring/interface diagrams, and electronics architecture documentation.
- Participate in recent product development from concept through prototype, validation, and production release.
- Support Design for Manufacturing (DFM) and Design for Reliability (DFR) activities.
- Develop and integrate programable logical controllers for cooling and thermal-management applications.
- Develop control logic for Pumps.
- Develop control logic for Fans.
- Develop control logic for Valves.
- Develop control logic for Compressors.
- Develop control logic for Temperature control.
- Develop control logic for Pressure monitoring.
- Develop control logic for Flow control.




- Develop control logic for Liquid level monitoring.
- Develop control logic for Safety interlocks.
- Develop control logic for Alarm and fault conditions.
- Implement closed-loop control strategies where applicable.
- Design, configure and deploy intuitive HMI screens and SCADA systems for real time monitoring.
- Work with PID/control algorithms for temperature, pressure, flow, and other process parameters.
- Sensors Instrumentation: Select, integrate, calibrate, and troubleshoot sensors used in thermal-management systems.
- Experience with sensors such as:
- Temperature sensors
- Pressure sensors
- Differential pressure sensors
- Flow sensors/meters
- Humidity sensors
- Liquid level sensors
- Current/voltage sensors
- Leak detection sensors
- Develop appropriate signal-conditioning and interface circuits.
- Ensure sensor accuracy, reliability, calibration, and signal integrity.

Communication Protocols: Strong understanding and hands-on experience with industrial communication protocols such as

1. 2. Integrate controllers with BMS, SCADA, PLC, cloud dashboards, and monitoring platforms.
3. Troubleshoot communication and interoperability issues between controller
4. Modbus RTU / TCP
5. RS-485
6. CAN / can-fd
7. UART
8. SPI
9. I2C
10. Ethernet
11. MQTT
12. TCP/IP
13. BACnet / OPC-UA is an added advantage. s and external systems.
14. Support development of communication maps, registers, addressing, and interface documentation.
15. Pcb Electronics Development: Review PCB layouts for signal integrity, grounding,



EMI/EMC considerations, thermal performance, and manufacturability.

Support selection of:

1. MOSFETs
2. Relays
3. Drivers
4. ICs
5. Connectors
6. Power supplies
7. Protection components
8. Communication interfaces

- Review component ratings and electrical safety requirements.
- Support prototype PCB bring-up and debugging.
- Firmware Embedded Software: Work with firmware developers to define control requirements and system functionality.
- Develop or review embedded firmware for controllers where required.
- Debug firmware and hardware integration issues.

Support implementation of:

1. Fault detection
2. Alarm handling
3. Data logging
4. Sensor monitoring
5. Control loops
6. Safety interlocks
7. System diagnostics

- Experience with Embedded C/C++ will be preferred.
- Testing Validation: Develop electronics and controller test plans and test procedures.
- Perform functional testing of controllers and electronic systems.
- Conduct Hardware-in-the-Loop (HIL) or system-level testing where applicable.
- Perform sensor validation and calibration.
- Conduct environmental and reliability testing.
- Support EMI/EMC testing and troubleshooting.
- Identify root causes of hardware, firmware, communication, and control-system failures.
- Implement corrective and preventive actions.
- Product Integration: Integrate electronics and controllers with mechanical, thermal, electrical, and software systems.
- Work with Thermal and Electrical Engineers to ensure proper control of cooling equipment.

Support integration of controllers with:

- Pumps
- Fans
- Compressors

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Electronics & Controller (Hyderabad)
🏢 Refroid Technologies
📍 Hyderabad