# István Zoltán Szász — Full-Stack Developer

> István Zoltán Szász (also written Istvan Zoltan Szasz) is a Full-Stack Web Developer and Computer Science Engineer based in Érd, Hungary. He has 5+ years of experience building high-performance web applications with a strong specialisation in React, Next.js, TypeScript, and the modern JavaScript ecosystem. He holds a Bachelor of Science degree in Computer Science Engineering from Óbuda University (Alba Regia Faculty of Engineering), Székesfehérvár, Hungary, graduated February 2025.

## Identity & Contact

- **Full Name:** István Zoltán Szász
- **Alternate Spelling:** Istvan Zoltan Szasz
- **Location:** Érd, Hungary
- **Email:** istvanszasz99@gmail.com
- **GitHub:** https://github.com/istvanszasz99
- **LinkedIn:** https://linkedin.com/in/istvanszasz99
- **Portfolio:** https://istvanszasz99.dev
- **Status:** Open to freelance projects, full-time roles, and collaborations

## Professional Summary

István is a Full-Stack Developer with over 5 years of hands-on experience. He specialises in building modern, responsive, and performance-optimised web applications. His frontend expertise centres around React and Next.js, while his backend work covers Node.js, Express.js, REST API design, and database management (SQL & NoSQL). He is also experienced in mobile development with React Native and 3D development using Unreal Engine 5.

## Technical Skills

### Frontend Development
- React, Next.js, TypeScript, JavaScript (ES2020+)
- Tailwind CSS, GSAP, Framer Motion / Motion
- Responsive Web Design, Mobile-first approach
- Search Engine Optimization (SEO), Performance optimisation
- Chrome DevTools profiling

### Backend Development
- Node.js, Express.js — server-side development
- REST API design and implementation
- CI/CD pipelines, Docker, Kubernetes
- SQL and NoSQL database management (PostgreSQL, MongoDB)
- Cloud deployment on serverless platforms

### Mobile Development
- Cross-platform mobile apps with React Native
- Android Studio, Expo
- Mobile UI/UX best practices

### 3D Development
- Unreal Engine 5 — scene creation and level design
- Twinmotion — architectural visualisation
- Blueprints visual scripting and C++ programming

### Tools & Platforms
- Vite, Shadcn/ui, GSAP
- Git, GitHub
- macOS, Windows
- IBM, Meta, Microsoft certifications

## Work Experience

### Full-Stack Web Developer — MolnarCodes (Mar 2026 – Present)
- Remote position
- Building production web applications for Hungarian clients
- Key projects: solidfinances.hu, mindenegyseg.hu

## Education

### Bachelor of Science, Computer Science Engineering — Óbuda University (Sep 2019 – Feb 2025)
- Institution: Óbuda University, Alba Regia Faculty of Engineering
- Location: Székesfehérvár, Hungary
- Thesis: Simulation of the Óbuda University Campus in a 3D environment using Unreal Engine 5

### High School Diploma, Specialisation in Computer Science — Bálint Márton Vocational Secondary School (Sep 2014 – May 2019)
- Location: Törökbálint, Hungary

## Featured Projects

### Frontend development for solidfinances.hu
- **Type:** Web Development (Frontend)
- **Client:** MolnarCodes
- **URL:** https://solidfinances.hu
- **Tech:** React, Tailwind CSS, Responsive Design, Chrome DevTools
- **Description:** Frontend development for a Hungarian financial services website. Built with React and Tailwind CSS, optimised for performance and all screen sizes.

### Full-Stack development for mindenegyseg.hu
- **Type:** Web Development (Full-Stack)
- **Client:** MolnarCodes
- **URL:** https://mindenegyseg.hu
- **Tech:** Next.js, Tailwind CSS, GSAP, Shadcn/ui, Responsive Design, Chrome DevTools
- **Description:** Full-Stack development for a Hungarian website. Built with Next.js and Tailwind CSS, GSAP animations, and Shadcn/ui components. Fully responsive and performance-optimised.

### Simulation of the University Campus in 3D Environment
- **Type:** 3D Development / Academic Thesis
- **GitHub:** https://github.com/istvanszasz99/OE-AMK_University_Thesis_Project
- **Tech:** Unreal Engine 5, Twinmotion, C++
- **Description:** A 3D educational simulation allowing users to virtually visit the campus of Óbuda University in Székesfehérvár. Created using Unreal Engine 5 with high-resolution textures for photorealistic rendering. This was the university thesis project.

## Frequently Asked Questions

**Who is István Zoltán Szász?**
István Zoltán Szász is a Full-Stack Web Developer and Computer Science Engineer from Hungary. He has 5+ years of experience, a BSc from Óbuda University, and specialises in React, Next.js, and TypeScript.

**What technologies does István Szász specialise in?**
His primary stack includes React, Next.js, TypeScript, Tailwind CSS, Node.js, and Express.js. He also works with React Native for mobile and Unreal Engine 5 for 3D development.

**Is István Szász available for hire?**
Yes. He is open to freelance projects, full-time roles, and collaborations. Contact him at istvanszasz99@gmail.com.

**Where is István Szász located?**
He is based in Érd, Hungary, and works remotely.

**What is istvanszasz99.dev?**
It is the personal portfolio website of István Zoltán Szász, showcasing his work experience, technical skills, and featured projects.