Who this is for

You need to bring designs to life properly

Designs aren’t translating into performant, usable interfaces in production.

You care about performance and accessibility

Site speed, usability and compliance are critical to your platform.

You need front-end that works with complex systems

Your interface needs to integrate cleanly with CMS, APIs or custom back-end systems.

What we help solve

Practical problems we see on front-end programmes-and how we address them.

  • Designs that don’t translate into real-world performance

    Visual fidelity often comes at the expense of speed or usability. We build optimised, production-ready front-end aligned to design intent-interfaces that look right and perform well.

  • Slow load times impacting user experience and SEO

    Heavy front-end builds reduce engagement and rankings. We implement performance-first development practices-faster load times and improved user experience.

  • Inconsistent behaviour across devices and browsers

    Interfaces break or degrade across environments. We test and validate across devices, browsers and screen sizes-reliable, consistent user experience.

  • Accessibility gaps and compliance risk

    Poor accessibility limits usability and creates risk. We build accessible interfaces aligned to best practices and standards-inclusive experiences and reduced compliance risk.

  • Front-end tightly coupled to back-end systems

    Rigid builds limit flexibility and scalability. We develop modular, decoupled front-end architectures where appropriate-greater flexibility and easier future development.

Why Tonic / why this approach

  • Design and development working as oneWe bridge the gap between UX/UI and engineering from the outset.
  • Performance as a baseline, not an afterthoughtFront-end decisions are made with speed and efficiency in mind.
  • Accessibility built into the processNot retrofitted at the end of a project.
  • Scalable, maintainable codebasesClean, structured builds designed for long-term use.
  • Aligned to real-world systemsFront-end is designed to integrate seamlessly with CMS, APIs and business systems. This reflects a structured, delivery-focused approach where usability, performance and maintainability are considered together rather than in isolation.

Core capabilities

  • Front-end architecture

    Scalable, maintainable front-end structures aligned to platform and project needs.

  • Component-based development

    Reusable UI components for consistency and efficiency.

  • Responsive and adaptive design implementation

    Interfaces that work seamlessly across devices and screen sizes.

  • Performance optimisation

    Optimising load times, rendering and overall front-end efficiency.

  • Accessibility implementation

    Building interfaces aligned to accessibility standards and usability best practices.

  • Integration with CMS and APIs

    Connecting front-end to content platforms, services and back-end systems.

  • Animation and interaction design

    Enhancing usability and engagement through purposeful interaction.

  • Testing and QA

    Cross-browser, cross-device and performance testing.

Selected work

Representative outcomes from front-end engagements-explore more in our work.

Built for real-world delivery

Integrations and APIs

Front-end connected to CMS, back-end systems and third-party services.

QA and acceptance testing

Validation across browsers, devices and performance benchmarks.

Accessibility and compliance

Aligned to accessibility standards and usability requirements.

Performance and maintainability

Optimised code and scalable architecture.

Support and continuity

Ongoing improvements and front-end evolution.

How we deliver

  1. Discovery and technical alignment

    We define requirements, constraints and integration points.

    Clear front-end direction; misaligned implementation reduced.

  2. Architecture and planning

    We design component structure and technical approach.

    Scalable front-end foundation; technical debt reduced.

  3. UI implementation

    We build interfaces aligned to design and usability goals.

    High-quality, production-ready UI; inconsistent design execution reduced.

  4. Performance and accessibility optimisation

    We refine speed, responsiveness and accessibility.

    Fast, inclusive interface; poor user experience reduced.

  5. QA and cross-platform testing

    We validate across devices and environments.

    Reliable, consistent experience; bugs and inconsistencies reduced.

  6. Support and iteration

    We continue to improve based on usage and feedback.

    Ongoing optimisation; performance degradation over time reduced.

Get started

Need a front-end that actually performs as well as it looks?

Talk to Tonic about your interface and performance goals-we’ll help you stress-test scope and technical approach.

Talk to the teamView our work

FAQs

What does front-end development include?

It covers everything users interact with-layout, components, interactions and performance.

Do you work with our design team?

Yes-we regularly collaborate with internal or external designers.

Can you improve an existing front-end?

Yes-we audit and optimise performance, accessibility and structure.

Do you build for accessibility standards?

Yes-accessibility is built into our development process.

Can you integrate with our CMS or back-end?

Yes-front-end integration is a core part of our work.

How do you ensure performance?

Through optimised code, asset management and testing across devices and networks.