Network Engineer • Cybersecurity Enthusiast • Full-Stack Developer

Building secure,
connected and
intelligent systems.

I design networks and secure, scalable solutions that solve real-world problems.

View My Work → Download CV ↓
Atem Mnayok
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3+

Projects Completed

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500+

Hours of Self-Learning

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4

Certifications & Courses

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Always

Learning & Building

About Me

Turning curiosity into solutions.

I'm Atem Manyok. A Network Engineer, Cybersecurity enthusiast and Full-Stack Developer. I enjoy understanding how systems work, securing them and building tools that solve real problems.

More About Me →
Atem Mnayok
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Networking

Design • Configure • Automate

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Cybersecurity

Defend • Monitor • Respond

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Web Development

Frontend • Backend • Database

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Problem Solving

Think • Build • Improve

Technologies I Work With

Technologies I work with

Python
Flask
HTML5
CSS3
JavaScript
PostgreSQL
Linux
Cisco / Networking
Wireshark
Nmap
Git & GitHub
VS Code
Terminal
Postman
Firewall

Certifications

Learning backed by credentials.

Selected certificates from my learning in AI, cybersecurity, Internet of Things and Python programming.

Cyber Security Certificate preview
Cybersecurity

Cyber Security Certificate

Foundational cybersecurity learning and concepts.

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Internet of Things Certificate preview
IoT

Internet of Things Certificate

Foundational Internet of Things learning and concepts.

View Certificate ↗
Python 3 Certificate preview
Development

Python 3 Certificate

Python programming fundamentals and practical learning.

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Featured Projects

Some things I've built

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Personal Portfolio Website

Personal Portfolio Website

A full-stack personal portfolio built with Flask to showcase my projects, certifications, technical skills, and experience. It includes a secure admin dashboard for managing content, PostgreSQL database integration, cloud file storage, contact messaging, and a custom production deployment.

Python Flask PostgreSQL Neon Supabase Vercel HTML CSS JavaScript
View Project →
Smart Greenhouse Arduino-Based Environmental Control

Smart Greenhouse Arduino-Based Environmental Control

Designed and simulated a greenhouse automation system using an Arduino Uno. The system reads temperature, humidity, and soil moisture, displays live readings on a 7-segment display and LCD, and automatically runs a cooling fan when the temperature rises above a set threshold. Built with: Arduino Uno, DHT11, soil moisture sensor, DC fan, relay, LCD, 7-segment display, and supporting electronics. Focus was on low-power operation, the fan runs only when needed, which is where the "Energy Saving" mode comes in.

Arduino IoT Embedded Systems C++ Sensors Automation
Independent Penetration Test Ateminium.com

Independent Penetration Test Ateminium.com

Manual-first penetration test of Ateminium, a multi-tenant school management platform for South Sudan secondary schools. Followed OWASP WASTG methodology using Burp Suite, OWASP ZAP, and Nmap. Findings (5 verified, all remediated): • Session token accessible to JavaScript (High) • Account enumeration via login errors (Medium) • No admin session idle timeout (Medium) • Weak Content Security Policy (Medium) • No MFA for school administrators (Medium) Vendor implemented fixes and confirmed them in a follow-up pass. Platform is now approved for production use.

Penetration Testing OWASP Burp Suite OWASP ZAP Nmap Web Security
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My Journey

Consistent progress.

Started the journey

Fell in love with tech

2021

Networking & Security

Built strong foundations

2022 – 2023

Web Development

Became a full-stack developer

2024

What's next?

Bigger projects, bigger impact

2025+
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Let's build something great.

Interested in working together, collaborating or just saying hi? My inbox is open.

Get in touch →