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Hello World

I'm Yialex Lee Jia Yi
the guy who never stop...

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About Me

I'm currently a

I'm a fresh graduate in Bachelor of Information Technology (Hons.) Security Technology from Multimedia University (MMU)


Cyber Security, CTF, Development, Boxing, Anime, Drama, Investment, Listen Music, Science, Learning New Thing

Coding Achivement

SUPREME 2019 - Finalist

Education & Work Experience

2021 - 2023   Multimedia University
- Bachelor of Information Technology (Hons.) Security Technology

2018 - 2021   Multimedia University
- Diploma in Information Technology

2024 January - Present   GOCODE PTE. LTD.
- IT Cloud Ops Analyst
Company Information :
Leading provider of innovative and reliable software solutions for businesses of all sizes.

2022 May - 2022 August   FIRMUS SDN BHD
- Security Consultant Intern
Company Information :
Firmus is a trusted provider of cyber-security services and solutions.

2021 - Freelance Web / App Developer

2020 - 2020   First Online (M) Sdn. Bhd.
- Internship
Company Information :
Leading Online Software Development & Premium Business Hosting provider.

CTF Achivement ( Top 5 )

CTF(World) :
PhantomCTF 3.0 - Place 30
TG:HACK 2020 - Place 73
Decompetition - Place 78
AUCTF 2020 -Place 105
Hackers Playground 2020 - Place 178

CTFtime Team :
MonkOnMars ( Team Member )
- Malaysia Place 1st (Year 2021)
S.O.W {Savior_0f_World} ( Team Leader )
- Malaysia Place 17th (Year 2020)
H0j3n ( Team Member )
- Malaysia Place 2nd (Year 2020)
forkbomb444 ( Team Member )
- Malaysia Place 9th (Year 2020)

Hack The Box

Top 1 in HTB Malaysia Ranking in Year 2022-2023


Hack The Box : Go to profile →

My Skill

Coding Language & Framework

Program / Software / Scripting : C (My first coding language), C++, C#, Visual Basic, Java (JavaFX), Python, Haskell, Perl, Bash, Assembly language
Web : Golang, Javascript, Typescript (React.js (Redux, MobX, Next.js), Node.js (Express.js, Nest.js, Apollo), React Native), Deno.js, PHP, HTML, CSS, Ruby, Rust, XML
AI / ML / Data Science : Python (Tensorflow, Keras, Scikitlearn, Pandas, Flask, Pytorch, Opencv, Pandas, Matplotlib and more), Matlab, R
Mobile App : Dart (Flutter), Java, Kotlin, XML
UI: CSS, Bootstrap, Bulma, Ant Design, Chakra UI
ORMs: Sequelize, TypeORM

Communication Language

Mandarin, Bahasa Melayu, English, Japanese

Hacking Tool

BurpSuite, Wireshark, Nessus, OllyDog, IDA, Nmap, Ncat, Metasploit,Nikto, SQL Map, THC Hydra, John the Ripper, Aircrack-ng, Oracle Virtual Box and more

Operating System

Microsoft Windows, Parrot OS, Kali Linux, Ubuntu, CentOS


PostgreSQL, MongoDB, MySQL, Redis, phpMyAdmin, InfluxDB, Hasura


AWS, Google Cloud


ISO27001, ISMS,


Here are some of my certificate. Feel free to check them out.

Pentest Practical Certificate

eJPT (eLearnSecurity Junior Penetration Tester)

The eLearnSecurity Junior Penetration Tester (eJPT) is a 100% practical certification on penetration testing and information security essentials.

Professional Certificate

IBM Cybersecurity Analyst Professional Certificate

This course include : - Develop knowledge of cybersecurity analyst tools including data protection; endpoint protection; SIEM; and systems and network fundamentals.
- Learn about key compliance and threat intelligence topics important in today’s cybersecurity landscape.
- Gain skills for incident responses and forensics with real-world cybersecurity case studies.
- Get hands-on experience to develop skills via industry specific and open source Security tools.
Tools: Wireshark, IBM QRadar, IBM MaaS360, IBM Guardium, IBM Resilient, i2 Enterprise Insight Analysis
Libraries: Python
Projects: Investigate a real-world security breach identifying the attack, vulnerabilities, costs and prevention recommendations.

Professional Certificate

Google IT Support Professional Certificate

This 5-course certificate, developed by Google.This professional course includes troubleshooting, networking, operating systems, system administration and security.This is worth to 12 college credits, the equivalent of 4 associate degree-level courses.

Course Complete Certificate

Cisco Cybersecurity Essentials

Course Complete Certificate

Cyber Threat and Attack Vector

This is a complete course certificate provide by University of Colorado. The course include the knowledge of Threats and Attack Vectors in Computer Security, Network and System Based Attacks, Cloud Security, Common Vulnerabilities and Data Breaches.

Course Complete Certificate

Cybersecurity and the Internet of Things

This is a complete course certificate provide by University System of Georgia. This course include the basic of Internet of Things(IoT).

Course Complete Certificate

Managing the Company of the Future

The aim of this course is to provide student with a comprehensive framework for understanding both the traditional principles of management inside companies today as well as the alternative principles that are becoming increasingly important. It provides both theoretical and practical perspectives on the nature of management in today’s organisations.

Course Complete Certificate

Security and Privacy for Big Data - Part 1

This course sensitizes regarding security in Big Data environments. This course discover cryptographic principles, mechanisms to manage access controls in Big Data system. By the end of the course, student will be ready to plan a Big Data project successfully, ensuring that all security related issues are under control.

Course Complete Certificate

Security and Privacy for Big Data - Part 2

This course sensitizes regarding security in Big Data environments. This course discover cryptographic principles, mechanisms to manage access controls in Big Data system. By the end of the course, student will be ready to plan a Big Data project successfully, ensuring that all security related issues are under control.

Course Complete Certificate

Cybersecurity Roles, Processes & Operating System Security

This course gives you the background needed to understand basic Cybersecurity around people. process and technology.

Certificate of Passed

OSForensics Triage Certification Course (OSFTC)

The OSForensics Triage Certification (OSFTC) was created for law enforcement investigators and forensic examiners who conduct digital evidence triage and digital evidence collection in the field.

Certificate of Achievement

SUPREME 2019 Finalist Achivement Certificate

This competition is to design a superhero character with HTML & CSS.




Comhelper is a free computer helping tool which include difference small tool for Windows OS.Comhelper tool included Computer Details,Rubbish Cleanner,Disk Scanner,Statistic disks and folder,Auto-Shutdown,IP Config,Control Firewall and File Opener.Comhelper has no GUI and run on terminal(cmd),but you can change 7 type of color. Comhelper Github

Web App

Suibiantt Online Music Playlist Streaming App. Suibiantt Web

A simple online music playlist streaming app.

Ai + Computer Tool

AI Computer Wife

AI computer wife which has the function similar with cortana.

Responsive Website / Web App / Online Shopping


Online fashion shop website.

Computer Game

Minecraft in Python

Minecraft that develope with python , pyglet and pygame.


QR Code Generator

A simple QR Code Generator develope with python. QR Code Generator Github

Responsive Website / Web App / Online Computer Accessories Store


Online computer accessories store. iShop Github

Artificial Intelligence(AI)

Facemask Detector

Facemask Detector is a AI facemask detector that can live detect people masked or not by using webcam. It is develop with pytourch and cv2. Facemask Detector Github

Mobile App / Web App

Com-Brow Controller

Com-Brow Controller is a tool develop with Node.js and flutter webview( for app ) that allow user to shutdown/sleep/lock and logout their computer by phone browser or app, if their phone and computer connected the same Wi-Fi. Com-Brow Controller

Mobile App / Web App


LiveTV is a web app and an android webview app that allow user free to watch TV online. LiveTV Web

Web App/Web Tool


Brow-Calculator is an online sciencetific calculator can open and use on browser. Brow-Calculator Github

My philosophy of life

What business do is Problem Solving. What do the business is Decision Making. What business done is Answer. What business get is Mark.

Author image Yialex Lee Jia Yi

We can only know last second,we can only create next second.

Author image Yialex Lee Jia Yi

World is not just right or wrong,up or down.Think with 360 degree.

Author image Yialex Lee Jia Yi

The meaning of life is to find the meaning.

Author image Yialex Lee Jia Yi

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