120+ projects · 8+ years experience I design and build
websites & apps
One developer, end-to-end. I design and build fast, custom websites, web apps and mobile apps for clients worldwide — handling everything from the first idea to launch, and the support after it.
- 120+
- Projects delivered
- 8+
- Years experience
- 15+
- Countries served
- < 24h
- Response time
How I work
From first idea to launch
A simple, transparent process — you always know what’s happening and what’s next.
- 1
Discovery & scope
We talk through your goals, then I scope the project and send a fixed quote and timeline.
- 2
Design & build
I design and code it end-to-end, sharing progress so you can steer as it comes together.
- 3
Launch & support
I launch it, hand over all the code, and stick around for updates and support if you want.
Custom websites, built from scratch
I design and hand-code fast, responsive websites tailored to your business — no bloated templates or page-builder mess, just clean code that loads fast and converts.
- Hand-coded, fast and responsive
- Built to convert, not just to look good
- A CMS you can edit yourself
Mobile & web apps, iOS and Android
From a first MVP to a full product, I build custom mobile and web apps — native or cross-platform — that feel fast and work reliably on every device.
- iOS, Android & cross-platform
- MVPs shipped fast for startups
- Reliable, maintainable code
Design that’s easy to use and to build
Clean, user-first design for websites and apps — designed to convert and ready to hand straight to development, because I build it too.
- User-first UI & UX design
- Design systems that scale
- Designed to be built, not just admired
Full service
Everything your project needs,
one developer to build it
Beyond websites and apps, I also handle online stores, SEO and ongoing support — so you have one person accountable for the whole thing, start to finish.
E-commerce
Custom Shopify, WooCommerce and headless storefronts, designed to convert — fast, on-brand and easy to manage.
Learn moreSEO Optimization
Technical and on-page SEO that helps your site rank, load fast and get cited by search and AI engines.
Learn moreMaintenance & Support
Updates, fixes, backups and improvements — a reliable developer on call so nothing stays broken for long.
Learn moreWhy work with me
One developer, no runaround
When you hire me you get the person actually building your project — not a salesperson, an account manager, or a junior handed the work after you sign.
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Work directly with the developer
No middlemen or handoffs — you talk to the person writing the code.
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Design and development in one
One person for design and build means nothing gets lost in translation.
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Honest advice, no lock-in
Straight recommendations, standard tools, and all the code is yours.
120+
Projects delivered
8+
Years experience
15+
Countries served
< 24h
Response time
Trusted by founders and businesses worldwide.
Client love
What clients say
“William took our rough idea and shipped a polished web app in weeks, not months. Communication was clear the whole way, and we own every line of the code.”
Sarah M.
Founder, SaaS startup
“Our new storefront is fast, beautiful, and finally converts. William handled the design and the tricky checkout work himself — no hand-offs, no runaround.”
David R.
Owner, Shopify store
“He rebuilt our marketing site and it loads instantly and ranks better than the agency version we paid triple for. Easily the smoothest project I’ve managed.”
Maya K.
Marketing lead
“I needed online ordering that just worked, and William delivered exactly that. He explained everything in plain English and still supports us whenever we need a change.”
James A.
Restaurant owner
“From first call to launch, William was fast and dependable. The mobile app he built for us looks incredible and our customers actually use it every day.”
Natalia P.
E-commerce brand
“We bring William in when a build has to be right. He’s reliable, writes clean code we can hand off, and hits deadlines — a rare combination in freelance developers.”
Thomas B.
Agency partner
Compare
Freelancer vs typical agency
An honest look at working directly with me versus a traditional agency.
| What you get |  SirVendor One developer | Typical agency |
|---|---|---|
| Work directly with the developer | ||
| Custom design, not a template | Sometimes | |
| You own all the code | Sometimes | |
| Fixed, scoped quote | ||
| One point of contact | ||
| Design + development in one | Sometimes | |
| SEO & performance built in | Sometimes | |
| Ongoing support | Sometimes | |
| Fast turnaround | ||
| No account-manager handoffs |
FAQ
Questions, answered
What kind of projects do you take on?
I build websites, web apps and mobile apps — marketing sites, business sites, online stores, MVPs and full products. If it lives on the web or a phone, I can probably build it. Not sure your idea fits? Just ask and I’ll tell you honestly.
How much will my project cost?
It depends on scope, so I don’t quote blind. After a short conversation I scope the work and send a fixed, itemized quote up front — no hourly surprises. A simple site costs less than a full app; either way you’ll know the price before we start.
How long does a project take?
A simple site can come together in a couple of weeks, while a full web or mobile app takes longer. Once I’ve scoped your project I give you a realistic timeline with milestones, so you always know where things stand.
Will I own the finished website or app?
Yes — once the project is paid for, you own all the code, design files and assets. I build on standard, open tools, so you can host it anywhere and hand it to any developer later. No lock-in and no hostage situations.
Do you offer support after launch?
Yes. I can handle updates, fixes, new features and general upkeep after launch — as needed or on a simple ongoing arrangement. Because I built it, changes are fast. Prefer to manage it yourself? I’ll hand over clean, documented code.
How do I get started?
Reach out and tell me what you’re trying to build and roughly what you have in mind. I’ll ask a few questions, scope the work, and send back a clear quote and timeline. There’s no charge to talk it through and no obligation until you decide to go ahead.
Free quote · I reply within < 24h
Let’s build something.
Tell me about your project and I’ll send a free, no-obligation quote — usually within a day.