Your digital partner —
from idea to launch
I'm Mario Ramljak — freelance developer from Gütersloh. I build Android apps, websites, online shops and complete digital solutions for businesses that want to grow online.
No agency overhead, no ticket system — you work directly with me. I deliver clean code, clear communication and results that are measurable.
Our services at a glance
From Android app to complete digital presence — everything from one source, direct and without detours.
Native Android Development
High-performance Android apps with Kotlin and Jetpack Compose — from concept to publication on the Google Play Store.
Full-Stack Web Development
Modern, SEO-optimised company websites and web applications — fast, secure and pixel-perfect on every device.
E-Commerce & Online Shops
Custom online shops with optimised checkout, payment integration and scalable architecture.
SEO & Digital Marketing
Technical SEO, on-page optimisation and performance analysis — so your website gets found on Google.
Corporate Identity & Branding
Professional logo design, colour systems and visual identity — so your brand stays memorable.
Maintenance & Support
Ongoing care, updates, security patches and technical support — keeping your solution running at all times.
API Integrations
Connecting external services, third-party systems and automations — REST, GraphQL, webhooks and more.
Reliable, transparent and always up to date.
For me, a website or app is more than just code — it's the digital face of your business. I accompany you from the first idea through to launch and beyond.
- Clear briefing and requirements analysis at the start
- Regular updates and transparent communication
- Clean, documented and maintainable code
- On-time delivery — or early communication if not
- Support and maintenance after launch
- Fair, transparent pricing with no hidden costs
From the first lines of code to today
- 2019
First steps
Started with Android development and first Kotlin projects.
- 2020
First client projects
First paid Android apps and websites for local businesses in Gütersloh.
- 2021
Play Store & Compose
Focus on native Android development with Jetpack Compose. First Play Store releases.
- 2022
Full-stack expansion
Built expertise in React, Next.js and Node.js. First full-stack projects.
- 2023
30+ projects
Growing portfolio with satisfied clients from retail, services and industry.
- 2024–today
B2B focus & scaling
Specialising in enterprise clients — websites, apps, shops and complete digital solutions.
Let's work together.
Whether Android app, website, online shop or complete digital solution — I look forward to your project.