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REV.2.0 · SRI LANKA
U1 · PRN-MCU
PAUL RN
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BUILDER
Engineering Student  ·  Future Founder  ·  Sri Lanka
PAUL RAJEEVAN · NIMALARAJAH BUILDS.

Engineering student from Batticaloa, Sri Lanka obsessed with AI, IoT, and hardware systems. Not just learning technology — building real products that solve real problems. Future founder. First principles thinker.

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ABOUT-PCB-01
01 / ABOUT ME

Builder at Heart,
Founder by Vision

I'm Paul Rajeevan Nimalarajah — an engineering & technology student who spends most of his time thinking about how hardware, software, and intelligence can be combined to solve problems that actually matter.

My obsession is the full stack — from the microcontroller to the cloud, from the circuit board to the business model. I believe the next generation of great companies will be built by people who understand both sides of the physical-digital divide.

Inspired by Elon Musk's first principles thinking, I strip away assumptions and ask: what is the fundamental problem? A simple irrigation problem becomes an intelligent water management platform. A security gap becomes an AI-powered monitoring system.

I wake up early, work hard, stay curious. I'm not building a career — I'm building a company.

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IoT & Hardware
Embedded systems, sensor networks, Arduino, microcontrollers & physical product engineering
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AI & Machine Learning
Intelligent automation, data-driven decision systems, computer vision & predictive models
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Cybersecurity
System hardening, network security, anomaly detection & secure architecture design
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Startup Mindset
First principles thinking, product design, MVP strategy & entrepreneurship
SKILLS-PCB-02
02 / CAPABILITIES

Skills & Stack

Hardware & Embedded
ArduinoSensors MicrocontrollersCircuit Design IoT ProtocolsRaspberry Pi
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Software & Code
PythonC / C++ Web DevAPIs DatabasesVibe Coding
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AI & Security
Machine LearningData Analysis Network SecuritySystem Hardening CV
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Engineering Thinking
First PrinciplesSystems Thinking Rapid PrototypingRoot Cause Analysis
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Product & Startup
Product DesignMarket Research MVP StrategyUser Empathy
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Languages
Tamil English Sinhala
PROJ-PCB-03
03 / PROJECTS

What I'm Building

Smart Water Irrigation System ▶ BUILDING

An intelligent IoT-powered irrigation controller using soil moisture sensors, real-time weather data, and machine learning to automatically optimize watering schedules. Reduces water waste by up to 40% while improving crop yield — solving a critical real-world problem for farmers across Sri Lanka and South Asia. Built with Arduino, GSM modules, and a Python-based control layer.

ArduinoIoT Sensors PythonML Agri-TechGSM
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AI Security Monitor ◎ CONCEPT

A hardware-software hybrid system using computer vision and anomaly detection to monitor network traffic and physical access points. Designed for small businesses and homes in developing markets where enterprise-grade security is cost-prohibitive. Making safety accessible.

Computer VisionCybersecurity PythonRaspberry Pi Edge AI
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This Portfolio ◉ LIVE

The very site you're on — built as more than a portfolio. A statement of intent. A living document of a journey from engineering student to tech founder. Hand-coded with full animation, PCB trace systems, and cinematic design.

HTML/CSSJavaScript Canvas APIPersonal Brand
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CONNECT
CONN-PCB-04
04 / CONTACT

Let's Build
Something Real

I'm open to internships, collaborations, mentorship, or just connecting with other builders and founders. If you see the same problems I do — if you believe technology should solve real things for real people — let's talk.

Build before you're ready. Ship before it's perfect.
Every great company started as a solution to a real problem.
Understand hardware. Understand software. Own the whole stack.
First principles: strip assumptions. Start from truth.
The best time to start was yesterday. Second best is now.
Sri Lanka needs more tech founders. I will be one of them.