C.SWEENEYFRONTEND ENGINEER
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Services

What I can build for you

Whether you're launching something new or fixing what's slowing you down, here's how I can help. Most engagements combine a few of these — tell me the outcome you're after and I'll recommend the right scope.

Web app development

Full-featured, customer-facing web applications built with modern tooling. Ideal for teams launching a new product or replacing an aging front end that has become slow or hard to maintain.

  • Interactive product UIs
  • API and CMS integration
  • Automated testing and CI/CD

Marketing sites

Fast, polished sites that turn visitors into leads and rank well in search. For businesses that need a site to look sharp, load instantly, and be easy to update.

  • Conversion-focused pages
  • Editable content model
  • SEO and analytics setup

Design systems

Reusable component libraries and design tokens that keep a growing product consistent. For teams whose UI has drifted and who want to ship new screens faster.

  • Tokenized component library
  • Usage docs and examples
  • Adoption and migration plan

Performance & accessibility

Focused engagements to make an existing site measurably faster and usable by everyone. For businesses losing customers to slow pages or facing accessibility requirements.

  • Core Web Vitals improvements
  • WCAG accessibility audit
  • Prioritized fix roadmap

How we'll work

A clear, four-step engagement

  1. 01

    Discover

    We define what success looks like — goals, audience, scope, and constraints — so the work is aimed at outcomes, not just output. You get a clear proposal with timeline and cost.

  2. 02

    Design

    I map the structure and interface, validate the approach against your goals, and agree on the technical plan before a line of production code is written.

  3. 03

    Build

    I develop in short, reviewable increments with regular demos, so you see progress early and can steer. Quality, performance, and accessibility are checked as we go.

  4. 04

    Ship

    We launch with monitoring, documentation, and a handoff your team can act on. I stay available for support and iteration after go-live.