Carolene Prem Leela Raja Singh

Multi-Skilled Engineer | SaaP Embedded Systems & SaaS Full-Stack Development

📍 Madurai, Tamilnadu, India

📱 (+91) 9487529141

👨‍💻 GitHub

Professional Summary

Highly experienced Multi-skilled Engineer with 6+ years of experience in embedded programming and full-stack development, having handled 7+ teams and completed 75+ projects. Skilled in EV and EVSE manufacturing, full-stack development, and versatile across various domains.

Professional Experience

Tuckermotors Private Limited 2020–2024

EV Charging Architect & Full Stack Developer

Led end-to-end development of OCPP-compliant EV charging systems (hardware + software), enabling interoperability across CCS2/GBT/ACTYPE2 protocols
Built CMS platforms and Android apps (15K+ downloads) with 99.9% uptime, processing 10M+ transactions via integrated payment gateways (Razorpay/Paytm)
Reduced AWS hosting costs by 25% while enhancing performance for 1000+ concurrent connections
Managed cross-functional teams to deliver APIs, energy monitoring systems, and real-time station control interfaces
Pioneered Tucker CMS and cross-platform Flutter apps (Android/iOS) for EV management

Firstcall Automation Private Limited 2018–2020

Embedded Systems Lead

Spearheaded R&D for industrial automation (SCADA, PLCs, VFDs), improving system reliability by 60%
Developed in-house alternatives to third-party SCADA solutions, cutting costs by 35%
Promoted to Team Lead within a year after delivering the AMF project (50% salary hike)
Designed IoT solutions (building automation, RFID attendance) using MODBUS/CAN/MQTT
Upgraded legacy electrical systems with custom firmware and hardware integrations

Technical Skills

Software Development

Embedded C C/C++ (6+ yrs) Java (3 yrs) PHP (3 yrs) Python HTML/CSS/JS RESTful APIs Android Development Flutter Qt Git CI/CD Agile

Embedded & Hardware

Atmel Nuvoton Raspberry Pi Texas Instruments RS232/RS485 SPI/I2C CAN MODBUS OCPP1.6J/2.0 MP-Lab Proteus RTOS

Cloud & IoT

AWS MySQL Linux SCADA PLC Building Automation HVAC MQTT CCS2/GBT ACTYPE2 Razorpay/Paytm

Key Projects

Power Management & Automation

AMF (Automatic Mains Failure) On Hold
VFD (Variable Frequency Drive) Completed
Static Voltage Stabilizer On Hold
BATT-Autoshifter On Hold

EV Charging & OCPP

OCPP JSON (WebSocket) v1.6 & 2.0 Completed
AC Charging Stations (7.2KW/22KW) Completed
DC Fast Charging Completed
Fatafat Charger (A9 GSM/ESP32) Completed

IoT & Industrial

PRP Home Automation Completed
SCADA Systems Completed
Biotech Thermo Cycler On Hold
Liquid Density Finder Completed

Project Timeline

2024

Tucker CMS (ongoing), Flutter App (ongoing)

2023

AWS Cloud OCPP updates

2022

ACTYPE2 22KW, OCPP Steve Server, Flutter App (started)

2021

OCPP 2.0, Fatafat A9/ESP32, DC Fast Charging

2020

Biotech Thermo Cycler, KALs Tank Sensor

2019

OCPP JSON/SOAP, PRP 8-Node, SCADA

2018

AMF, VFD, Singapore Projects

Education & Certifications

B.E. Electronics and Communication

Anna University (2014-2018)

Graduated with 7.45 GPA

Certifications

Java Programming & SDLC Fundamentals - Great Learning (2024)
Infosys Campus Connect - Infosys (2017)
Python Programming - P.A. College (2017)
Embedded Systems - P.A. College (2016)

Awards & Publications

Best Support Engineer Award

Tuckermotors Private Limited

January 2024

Published Research Paper

"Vehicle Control System Implementation using CAN Protocol"

International Journal of Engineering Research & Technology, April 2018

Languages

English (Professional) Tamil (Native) Hindi (Intermediate) Japanese (Beginner)