Frontend Development · Cardiff
Frontend Development in Cardiff
The part your Cardiff customers actually touch — built to be fast on a mid-range phone, usable with a keyboard or a screen reader, and faithful to the design rather than approximately like it. Often the piece a business brings in separately, because their back end works and the interface is what is letting them down.
Why this comes up
The problem
Interfaces built without performance or accessibility in mind exclude a measurable share of users and get penalised in search. Both are far cheaper to build in than to retrofit once the component library has set.
What you get
What we deliver
- Component library built from your design system, so screens stay consistent as they multiply
- Core Web Vitals targets met and tested on throttled mobile, not on a fast desktop
- WCAG 2.2 AA — keyboard navigation, focus order, contrast and screen reader labelling
- Responsive layouts verified on real devices rather than a browser resize
- Integration against your existing API, with loading and error states designed rather than defaulted
- Component documentation your team can work from without reverse-engineering the code
Want this scoped for your business in Cardiff?
Thirty minutes, no charge, no sales script. You leave with a written summary of what frontend development would actually involve — whether or not you use us.
Working in Cardiff
Wales
Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.
Sectors we work with in Cardiff
- Media & Broadcasting
- Financial Services
- Public Sector
- Higher Education
- Sport
What we work with
Technologies and platforms
- TypeScript
- React
- Next.js
- Tailwind CSS
- Vue
- Storybook
- Playwright
Who we work with
Industries we serve
- Ecommerce
- SaaS platforms
- Media and publishing
- Financial services
- Public sector suppliers
Why us
Why Cardiff businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Cardiff
Looking for the full picture? See our Frontend Development services, everything we do in Cardiff or browse everything we do.
Frontend Development in Cardiff — common questions
- Can you work with our existing back end?
- Yes, and it is a common arrangement. We build against your API as it stands. Where an endpoint makes the interface slow or awkward we will say so and suggest a change, but we will not require one to start.
- Why does accessibility matter commercially?
- Roughly one in five people in the UK has a disability, so an inaccessible interface excludes real customers. Public sector contracts require it outright, and the same work — proper headings, labels, contrast — tends to improve the experience for everyone.
- Our site is slow. Is a rebuild the only fix?
- Rarely. Most slowness comes from oversized images, blocking scripts and third-party tags rather than the framework. An audit is cheap and usually identifies changes worth more than a rebuild would cost.
- Will it match our designs exactly?
- Yes, and where a design will not survive contact with real content or a narrow screen, we raise it during the build rather than quietly approximating it and hoping nobody compares.
- Do you work with businesses across Cardiff?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Cardiff businesses do you usually work with?
- Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
- Do you cover the areas around Cardiff?
- Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.
Talk to us about Frontend Development in Cardiff
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise