About Us

INTEREL, the premier Smart Building Infrastructure provider. We deliver world-class commercial-grade IoT hardware and software solutions for service providers, distributors, other partners, and our own clients across multiple real estate verticals all over the world. We got our start in the hotel space and have continued to diversify and build upon our proven platform. From hospitality to multifamily, single-family build-to-rent to student, senior, and affordable housing to condominium, coop, and HOA communities, our flexible platform, premium smart devices, customizable logic, and open APIs can accommodate a myriad of use cases. At INTEREL, we’re all about creating sustainable smart environments. We’re passionate about our mission and are looking for team members who feel the same way!

The Opportunity

We are currently recruiting for a Junior Embedded Engineer to join our growing Embedded Engineering team in Singapore. In this role, you will contribute to the development of firmware and hardware for our hotel automation systems and IoT infrastructure devices.

This is an excellent opportunity to work with a dynamic and innovative team, where you will receive hands-on training in designing, developing, debugging, testing, maintaining, and troubleshooting embedded devices based on microcontrollers.

Your responsibilities will include working with electronic schematic design and interpretation, firmware design, development, testing, and debugging. You will also handle digital communication protocols, both wired and wireless, such as Wi-Fi, BLE, ZigBee, Modbus, M-Bus, and RS485. You will develop and maintain firmware using operating systems like FreeRTOS and work with sensor data acquisition and processing.

Our systems encompass a wide range of embedded technologies across software and hardware development in the enterprise automation and control domains, including areas such as RTOS, wireless protocols (BLE, ZigBee, Wi-Fi), and sensor integration (touch and others).

What You Will Do

• Develop firmware for various microcontrollers
• Develop hardware schematics for digital electronics
• Contribute to the selection of hardware components
• Test existing systems, firmware and devices, building up testbed bench
• Realize and validate prototype
• Write test cases procedures
• Prepare and maintain technical documentation

Organizational Hierarchy

• Reports directly to the Head of Embedded Engineering for responsibilities, schedules, HR-related matters, and status reporting.
• Collaborates closely with other embedded developers and engineers on system integration modules.

What You'll Need To Succeed

• Bachelor’s or Master’s degree in Electronics, Electrical, or Computer Science/Engineering (or equivalent)
• Programming skills: C/C++ (must have); Python and Javascript (nice to have)
• Understanding of digital electronic design

Exposure to:

• State Machine design pattern
• Real-time OS, experiment with FreeRTOS
• Hardware interfaces: ADC, UART, SPI, I2C, RS485
• Embedded platforms: Espressif, Arduino, ARM-based, Raspberry Pi

Preferred requirements

• Electrical engineering skills: PCB design, hardware prototyping
• Communication protocol: Modbus, TCP/IP, MQTT, HTTP
• WiFi/BLE (Espressif), Zigbee (Nordic/TI), and BLE (Nordic) modules
• Multi-processor embedded systems
• Lighting, HVAC, and automation systems
• AWS IoT cloud solutions
• Git, Jira
• Familiar with startup environments
• Willing to learn/explore new technologies
• Critical thinking and problem-solving 
• Macbook user

At INTEREL we provide equal employment opportunities to all individuals based on job qualifications and ability to perform a job, and do not discriminate on the basis of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. We believe that equality and diversity build a strong organization and we’re working hard to make sure that’s the foundation of our organization as we grow.