user@hazrien:~
< SYSTEM_ONLINE />
Hazrien Nazman Logo

Hi, I'm
Hazrien Nazman

Hi, I'm
Hazrien Nazman

IoT Product Manager & Backend Developer

>_

< ABOUT_ME />

Hazrien Nazman 2D Character Illustration

Building the Future of IoT

I am an IoT Product Manager and Developer with 5+ years of experience. I specialize in the ESP-IDF framework, Nodejs, and MQTT architectures.

Currently, I lead the Nebula IoT Management System, powering over 300+ machines with real-time telemetry and payment integrations.

5+
Years Experience
300+
Machines Powered
100+
Students Trained

< MY_SKILLS />

IoT & Firmware IconIoT & Firmware

ESP-IDF Framework
ESP32-S3
Embedded C
RS232
PCB Design
Over-the-Air (OTA)

Backend Development IconBackend Development

Node.js
Docker
MQTT Architecture
API Development
MERN Stack

Homelab & Infrastructure IconHomelab & Infrastructure

Server Architecture
Docker Swarm
Private Broker Operations
Network Security

Frontend Development IconFrontend Development

HTML/CSS
React
JavaScript
Tailwind CSS
Responsive Design

< WORK_EXPERIENCE />

Current

Jan 2025 - Present

Product Manager & IoT/Backend Developer

T05 Technologies Sdn. Bhd.

Leading R&D for Nebula MQTT and managing private broker operations. Optimized Docker setups and architected scalable IoT solutions.

Feb 2023 - Jan 2025

IoT Developer & Technical Support

T05 Technologies Sdn. Bhd.

Developed Node.js MQTT clients, designed PCBs for NebulaMQTT reducing costs by 20%, and resolved 95% of technical support issues within 24 hours.

Sept 2022 - Jan 2023

IoT Trainer

Myinvent Technologies Sdn Bhd

Designed and delivered IoT training courses for over 100 students. Mentored students with a 90% satisfaction rate.

First Job

2013

Started Career Journey

First Job After SPM

Beginning of professional career after completing SPM.

< FEATURED_PROJECTS />

LIVE

Nebula IoT Management System (NIoTMS)

2023 - Present
NebulaMQTT Firmware (Arduino & ESP-IDF)Nebula IoT Backend (Node.js REST API & MQTT Broker)Nebula IoT Frontend (React Dashboard)Payment Integrations (T05Pay & Payrallel)3rd Party Integrations (Helmet Washer, Telegram Bot & Yallvend)Dockerized Infrastructure & Private Broker Operations

A complete end-to-end IoT solution managing 300+ machines. I architected the entire ecosystem from firmware to backend payment processing.

COMPLETED
🌊

1SEA Super App

2024
1SEA Web App (MERN Stack)1SEA Web Backend API (Node.js & MongoDB)1SEA Android App (React Native)1SEA iOS App (React Native)1SEA APP Backend API (Node.js & MongoDB)Payment Integration (T05Pay & Payrallel)

A super app platform with Unified Identity and Authentication System, facilitating easy integration of micro-applications.

LIVE
🪐

Members Allocation and Redemption System (MARS)

2024
MARS Web App (MERN Stack)MARS Backend API (Node.js & MongoDB)Payment Terminal Integration

System designed for organizations to manage memberships and allow members to redeem items using allocated balances or vouchers.

COMPLETED
🌡️

Indoor Air Quality Monitoring System

2024
ESP32 Firmware (ESP-IDF)Node-RED DashboardMQTT Broker SetupPCB Design

Hardware and firmware solution for monitoring indoor air quality using ESP32 and various sensors, with data visualization via Node-RED dashboard.

COMPLETED
🌧️

Smart Flash Flood Rainfall Intensity Mitigation System Using IoT (FLORIMS)

2023
ESP32 Firmware (Arduino)Node-RED DashboardMQTT Broker SetupTelegram Bot

The project is developing a smart flash flood rainfall intensity mitigation system based on IoT. It involves measuring rainfall intensity per hour, linking the user with the controller, and determining the most accurate reading. The system can track rainfall intensity data in real-time and notify the user when the rainfall intensity is in a dangerous state.

LIVE
💼

Proxmox Server

2024
ProxmoxHomelab ServerDocker SetupTailscale VPN SetupProxmox Setup

Proxmox is a virtualization platform that allows you to run multiple virtual machines on a single physical server.

LIVE
💿

Jellyfin Media Server

2024
JellyfinHomelab ServerDocker SetupTailscale VPN SetupProxmox Setup

Jellyfin is a media server that allows you to stream your media files to any device on your network.

LIVE
⌨️

Pi Pico Keyboard

2021
Pi PicoKeyboard

Pi Pico Keyboard is a keyboard that allows you to control your computer with a Pi Pico.

< WHAT_PEOPLE_SAY />

Review #1Lv.99
👤

Brian Leow

Backend Developer at T05 Technologies

Colleague

It has been a great pleasure to work with Hazrien, his fun personality makes him a valuable team member, and his deep technical expertise is truly impressive. He is very knowledgeable and applies a meticulous attention to detail to all his tasks, allowing him to excel at identifying issues and resolving them in a timely manner. What truly sets him apart is his versatility, his knowledge seamlessly extends beyond the IoT domain, enabling him to apply his understanding to both front and backend developments. This makes him a highly versatile full-stack developer with huge knowledge in the field of IoT, and you can confidently trust his abilities in producing both software and hardware projects.

Status: VerifiedPage 1
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Mission Accomplished

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> CONTACT_INFO

Phone_Number

+60 13-759 4904

Base_Location

Shah Alam, Selangor, MY