Full-Stack Engineer · Cologne, DE

Aseel Marwan
Kheder

Full-Stack Software Engineer & Secure Systems Specialist

"Discipline in the gym, Performance in the code."

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About Me

From Hardware to High-Level Code

I started with screwdrivers and circuit boards — assembling PCs, running networks, and troubleshooting hardware. That hands-on foundation taught me how systems really work from the ground up. Today, I specialize in building full-stack applications with PHP, JavaScript, and relational databases — always with a relentless focus on performance, security, and GDPR compliance.

For modern frameworks like Next.js and Flutter, I leverage AI-assisted workflows — understanding the architecture deeply while using intelligent tooling to accelerate delivery. The result? Enterprise-grade applications, delivered fast.

Full-Stack Craft

Building with PHP, JS, MySQL, and modern frontend architectures.

Security-First

2FA, GDPR compliance, CSRF protection, and hardened authentication.

Infrastructure

From bare-metal hardware to cloud-ready architecture and deployment.

Tech Arsenal

The Stack I Ship With

Categorized honestly — core expertise vs. AI-assisted project delivery.

Core Expertise

Languages and tools I write from scratch, daily.

PHP JavaScript (ES6+) MySQL HTML5 CSS3 Git REST APIs

Project-Driven (AI-Assisted)

Frameworks I've shipped production apps with, using AI tooling.

Next.js React Flutter Dart Tailwind CSS Shopware 6

Security & Compliance

Building systems that protect data by design.

2FA (TOTP) GDPR / DSGVO CSRF Protection Rate Limiting Input Sanitization
Featured Work

Projects That Deliver

Real-world applications built for performance, security, and exceptional UX.

Surprise! Store

High-end e-commerce platform with 2FA security and a custom admin dashboard.

2FA Security Admin Dashboard E-Commerce
Live Demo Source

Aloni's Barbershop

Ultra-fast, 100/100 PageSpeed landing page with premium SEO optimization.

100/100 PageSpeed Ultra-fast SEO Optimized
Live Demo Source

Bashiqa School Manager

Complex school management system with a robust PHP backend and relational database.

PHP Backend MySQL Admin System
Live Demo Source

Auktionshaus Linz

Premium corporate design and UI/UX for a specialized auction house.

Premium UI/UX Corporate Design B2B Showcase
Live Demo Source
Get In Touch

Let's Build Something Great

Looking to add a dedicated Software Engineer to your team? I am currently open to new job opportunities.

Cologne, Germany