Small Businesses
Getting online properly
A professional website that wins you work, built to a sensible budget and easy for you to keep up to date.
- Brochure & portfolio sites
- Local SEO foundations
- Simple online booking & shops
David Rosthorn · Web & Mobile Design and Development
Websites and apps built properly,
by someone who's been doing it for 20+ years.
I design and develop websites, web applications and mobile apps for businesses of every size, from small local firms getting online for the first time to large organisations with complex, business-critical requirements.
Hello, I'm David.
I've been designing and building for the web for over twenty years: long enough to remember when Windows 3.1 was cutting edge.
In that time I've worked on everything from one-page sites for local businesses to large, complex platforms for big organisations with demanding requirements, and I build mobile apps for iOS and Android too.
That range matters. Small projects taught me to be practical and careful with a budget. Large ones taught me rigour, structure and how to keep many stakeholders happy. Every client gets both.
You work directly with me from the first conversation to launch and beyond. No account managers, no hand-offs. Where a project needs it, I bring in trusted specialists, so you get agency capability with a single, experienced point of contact.
David Rosthorn
Web & Mobile Design and Development
Version 20+ (years)
- Experience:
- 20+ years
- Project range:
- Small business → enterprise
- Platforms:
- Web, iOS & Android
- Based in:
- São Paulo, Brazil
- Status:
- Taking on new projects
Services
Whether you need a straightforward website, a mobile app or a bespoke web application, I handle the whole job, so there's one person accountable from start to finish.
Web Design
Clean, considered interfaces that reflect your brand and make it easy for visitors to do what they came to do.
Web Development
Fast, standards-based front and back ends, hand-built and maintainable rather than bolted together.
Mobile Apps
iOS and Android apps that feel at home on the device, from customer-facing products to internal tools.
E-commerce
Online shops that are simple to run day to day, from a handful of products to large catalogues.
Content Management
Editing tools your team will actually enjoy using, so updating the site never needs a developer.
Web Apps & Integrations
Bespoke applications, portals and integrations with the CRMs, payment providers and APIs you rely on.
Performance & SEO
Quick-loading, accessible, search-friendly sites, measured and tuned rather than guessed at.
Hosting & Support
Ongoing care after launch: updates, security, backups, monitoring and a person to call when you need one.
Rescue & Rebuild
Inherited a site or app that's slow, fragile or hard to change? I'll audit it and plan a sensible way forward.
How I work
Five clear stages. Open each folder to see what's involved.
C:\PROJECTS\YOURSITE
Step 1 of 5Discover
We start with your business, not the technology: goals, audience, constraints and what success looks like.
- GOALS.TXTWhat the project needs to achieve
- AUDIENCE.TXTWho it's for and what they need
- SCOPE.DOCAgreed features, budget and timeline
Who I work with
Twenty years of projects of every shape and size means I can pitch the approach to suit you. A small business doesn't need enterprise process, and a large organisation can't afford shortcuts.
Click a card to bring it to the front.
Card 1 of 4
Let's talk about your project
Send me a message on WhatsApp and tell me a little about what you need. I'll get back to you, usually within one working day.
WhatsApp: (11) 93769-2392
Prefer email? Write to me@divil.org
C:\> type CONTACT.TXT
EMAIL ......... me@divil.org
WHATSAPP ...... (11) 93769-2392
BASED ......... São Paulo, Brazil
EXPERIENCE .... 20+ years
WORK .......... Web, mobile, design, support
STATUS ........ Taking on new projects
C:\>