Digital solutions.Real results.
I build websites and business web apps that move your company forward — personal, tailor-made, and with genuine attention to detail.
- ✓100% custom — no website builders
- ✓SEO & performance included
- ✓Reply within 24 hours
- Concept & design — custom, no site builders
- Development — Angular · TypeScript
- SEO & performance — optimised
- GDPR-compliant — hosted in Germany
My services
No website builders, no off-the-shelf templates — every project is designed and developed individually for you.
Websites that sell
Your website is your digital storefront. I create modern, fast, search-engine-optimised websites that turn visitors into customers — and present your brand unmistakably.
- →Individual design instead of templates
- →SEO & fast loading included
- →Flawless on every device
Business web apps
Digitise processes, save time, grow: I develop web applications tailored precisely to your workflows — from internal tools to full customer platforms.
- →Custom features for your workflows
- →Modern, future-proof technology
- →Scalable & maintainable
Optimisation & modernisation
Your current website feels dated or loads too slowly? I analyse, optimise and modernise — for better rankings, more inquiries and a fresh appearance.
- →Performance analysis
- →SEO optimisation
- →Redesign with substance
All-in-one care-free package
You focus on your business, I take care of your web presence: from the first idea through design and development to maintenance and updates — all from one hand.
- →Concept to launch
- →Ongoing support & updates
- →One personal contact
What sets me apart from run-of-the-mill agencies? I listen, I think along with you, and I stand behind my work — with a direct line to me instead of a ticket system.
Every project is unique — that is why I only quote prices once I know what you really need. Write to me without obligation: you will receive a fair, transparent offer that fits your budget.
How your project unfolds
No surprises, no jargon — you always know where your project stands.
Free consultation
You talk, I listen: describe your idea by email or contact form — no obligation, no tech jargon. I get back to you within 24 hours.
Concept & quote
I work out a clear proposal that fits your goals and your budget — with a transparent offer. You know exactly where you stand from day one.
Design & development
Now your project takes shape: modern, fast and search-engine optimised. You see regular progress and your feedback flows straight in.
Launch & support
Your website goes live — tested, optimised and ready to perform. And if you wish, I stay at your side with maintenance, updates and quick answers.
The person
behind your project
Behind every good website is someone who listens. I'm Bünyamin — web and app developer from Siegburg near Cologne/Bonn, and I love turning ideas into digital experiences.
My training at a professional software school in Germany and countless projects — from frontend to native apps — taught me one thing: technology is only a means to an end. What counts is that it works for you.
That's why you won't get off-the-shelf solutions from me, but a partner who thinks along: honest in consultation, precise in execution, and reachable when you need me.
Whether a new website, a business web app or a fresh look for your existing presence — let's create something together that you are proud of.
Get in touch
My skills
Web & Frontend
Mobile & Tools
My portfolio
A selection of my projects — see for yourself what your solution could look like.
HausVio
Property management software for German homeowner associations (WEG) — annual statements at the push of a button, income and expense tracking, cost allocation keys. A complete SaaS product, live in production: from concept and design to development, hosting and operations.
Runs on desktop, tablet and phone — the same app, usable everywhere.






Zephir
Quotation app for a bathroom renovation company — create professional quotes on site at the customer's home, document with photos and have them signed digitally on the spot. From survey to signature in a single appointment. Built as a customer project, live in daily use.
Runs on desktop, tablet and phone — the same app, usable everywhere.



Dachplaner
3D roof configurator working with official LoD2 building data: enter an address, load the building from the state 3D mesh, and get roof area, pitch, ridge and eaves computed automatically. Drone photogrammetry models can be added for a photorealistic view — the result is a material list and a price estimate in minutes.

Free website check
How good is your current website really? Send me your URL — you will receive a short, honest analysis of design, speed and Google visibility within 48 hours. Free, no strings attached.
No subscription, no obligations — just an honest assessment.
Frequently asked questions
The most common questions before a project starts — answered honestly.
What does a website or web app cost?
That depends entirely on the scope — a compact business site costs less than a custom web app. That is why I only quote after the free consultation: you receive a fair, transparent offer with no hidden costs, tailored to your budget.
How long does it take?
A typical business website is often online within a few weeks; more complex web apps take correspondingly longer. Your quote includes a realistic timeline — and I keep you posted throughout.
What do I need to prepare?
Just your idea. Everything else — structure, copy, images, technology — we work out together. I guide you step by step, even if you have never commissioned a website before.
Who takes care of the website after launch?
Entirely up to you: either you maintain it yourself — I will gladly show you how — or you choose the all-in-one package and I keep your website up to date, secure and fast.
Do you also work with existing websites?
Yes! Slow loading times, dated design or poor Google rankings — I analyse your existing site and modernise it where it counts. Often a lot can be achieved with manageable effort.
Let's talk about your project
Tell me about your project — completely without obligation. I usually reply within 24 hours with an honest assessment and the next steps.
Or the classic way, by email:
mail@ilhan-buenyamin.comPrefer to go into detail? The form walks you through it.
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