About
Hi, I’m
William Lopez
I’m a freelance web and app developer, and SirVendor is how I work with clients. One developer, end-to-end — I design, build and launch websites and apps, and I stick around to support them.
I started SirVendor because I was tired of watching good projects get lost between salespeople, project managers and the developers who never actually spoke to the client. I do it differently: when you hire me, you work directly with the person writing your code, from the first sketch to launch day.
Across 8+ years of building for the web I’ve shipped 120+ projects — marketing sites, online stores, web apps and mobile apps — for founders and businesses around the world. I care about clean code, honest timelines, and work you actually own.
What I stand for
How I work
Honesty first
Straight advice and realistic timelines, even when it’s not the easiest thing to hear. No inflated promises to win the job.
You own everything
All the code, design files and assets are yours. I build on standard, open tools, so you’re never locked in.
Direct communication
You talk to me, the person doing the work — with regular updates and no account-manager telephone game.
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Let’s build something together.
Tell me about your project and I’ll send a free, no-obligation quote.