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SideDataTechnologies

Website and web application development

We build websites and web applications from design through to deployment. The aim is a product that loads quickly, works with a keyboard and a screen reader, and that someone else can pick up and maintain in two years.

We write TypeScript, keep the content separate from the code where it makes sense, and document how to run and deploy what we hand over.

What we do

The work in this area.

Websites
Company and product sites with clear structure, search-friendly markup and content you can edit without a developer.
Web applications
Portals, dashboards and internal tools with authentication, roles, forms and a database behind them.
APIs and integrations
Connecting your site or app to payment, email, CRM and other systems you already depend on.
Accessibility and performance work
Audits and fixes against WCAG 2.2 AA and Core Web Vitals for existing sites.

Typical engagements

Examples of how people ask for this.

  • A new company website, built and deployed
  • A customer or staff portal replacing spreadsheets and email
  • Rebuilding an ageing site on a modern stack
  • An accessibility and performance review with a written list of fixes

How it works

From first call to handover.

  1. Step 1

    Content and structure first

    We agree the pages, the words and the flows before visual design starts.

  2. Step 2

    Design and build together

    Working pages are shown early, so feedback lands on the real thing.

  3. Step 3

    Test

    Automated checks, keyboard and screen-reader passes, and testing on real phones.

  4. Step 4

    Launch and hand over

    Deployment, monitoring basics, and documentation for whoever maintains it next.

Tech

What we usually use.

TypeScript, React, Next.js, Node.js, PostgreSQL, Tailwind CSS, Vercel.

If your environment already runs on something else, we will tell you what we can support.

Contact

Talk to us about website and web application development.

A short message is enough. Describe the situation and what you would like to happen.