Muhammad Rafy K S
Embedded Software Engineer(12 Years Experience)
Singapore
Summary
- Experience in train-borne PIS, 4G/5G modems, medical, lighting, and industrial control systems.
- Embedded C/C++ development across application and driver layers on multiple architectures.
- SIL/HIL automation framework development using Python and Robot Framework.
- RTOS-based software design (proprietary and commercial).
- Agile and V-Model development; CMMI-5, ISO, and FDA compliance.
- Experience mentoring junior engineers.
Overview
12
12
years of professional experience
Work History
Senior Embedded Software Engineer
Path Infotech(Client ST Engineering)
06.2025 - Current
- Architected a 5G FRMCS/MCX Gateway between Train PIS and MCX Server on Intel x86-64 (Ubuntu) using C++, implementing AT command services, SIP call bridging (PJSIP), and MCX core services using Gstreamer WebRTC and WebSocket.
- Developed a Python + Robot Framework-based SIL/HIL automation framework for Passenger Information Systems using Raspberry Pi, with audio/image validation via OpenCV, Gstreamer, and ALSA.
Technical Specialist
MediaTek(Via Aritha Consulting)
07.2018 - 11.2024
- Worked on SIM/eSIM-UE interface layer development and maintenance.
- Contributed to SIM/eSIM functional modules, including AT command Interface to Android, Security management, and SIM toolkit Application.
- Worked on 4G/5G Modem protocol stack Layer 4 software modules.
- Took ownership of Layer 4 modules, including LAC, RAC, DMF, and SS.
- Implemented extended AT commands for the modem, including both MediaTek proprietary and OEM-specific commands.
- Worked on OEM and Network Operator-specific feature requirements and enhancements for the modem.
- Mentored junior team members and was involved in code reviews.
Technical Specialist
Aritha Consulting
08.2022 - 06.2023
- Worked on the development of Bootloader for WIFI notification device’s FOTA feature.
- Design & Development bootloader for PIC24EP series microcontroller.
- SPI EEPROM driver development. Development of Application layer for FOTA.
- UI Menu development on a monochrome LCD display.
- Code modification of WIFI Application layer for FOTA use case scenarios.
Senior Software Engineer
Universal Electronics
11.2017 - 06.2018
- Worked on the maintenance of BLE based remote control software.
- Worked on the Unit level firmware verification of remote-control software.
Senior Software Engineer
Mindteck
10.2016 - 11.2017
- Worked on the development of Lumawise Z50 LED Drive based on DALI 2.0 protocol.
- Requirement analysis and SRS creation from PRD.
- Software design document creation. Development of DALI 2.0 Interface.
- Worked on the development of CATS2.2 (Compact Automated Test System 2.2) for testing Automotive ECU.
- Design & Development of CATS software modules. Development of Engine Speed simulation software.
- Development of Relay control and Node voltage measurement modules.
- Integration of TI based USB2.0 high speed USB bus to the application.
Member Technical Staff
HCL Technologies
05.2014 - 09.2016
- Worked on the development of an Insulin Delivery Device, for client BD, a class 3 medical device for diabetes.
- Requirement analysis and review, High-Level design and Low-level design.
- Design & Development of Insulin delivery device application software and validation.
- Development of pump controller driver and validation.
- Development of SPI Driver and Handshake protocol. Development of SPI transport level APIs.
- Adherence to MISRA C, IEC-62304, ISO-14971, IEC-60601 standards.
09.2010 - 05.2014
- Worked as a technical faculty member in an academic training centre in Kerala, India.
Education
Bachelor of Technology - Electronics & Communication
University of Calicut
Kerala, IndiaHigher Secondary Education -
Model Technical Higher Secondary School
Kerala, IndiaSecondary Education(10th) -
Muppathadam Higher Secondary School
Kerala, IndiaSkills
RTOS/OS: MQXLite, Nucleus, MediaTek RTOS, FreeRtos, Raspbian, Ubuntu
Timeline
Senior Embedded Software Engineer
Path Infotech(Client ST Engineering)
06.2025 - Current
Technical Specialist
Aritha Consulting
08.2022 - 06.2023
Technical Specialist
MediaTek(Via Aritha Consulting)
07.2018 - 11.2024
Senior Software Engineer
Universal Electronics
11.2017 - 06.2018
Senior Software Engineer
Mindteck
10.2016 - 11.2017
Member Technical Staff
HCL Technologies
05.2014 - 09.2016
09.2010 - 05.2014
Bachelor of Technology - Electronics & Communication
University of Calicut
Higher Secondary Education -
Model Technical Higher Secondary School
Secondary Education(10th) -
Muppathadam Higher Secondary School