Custom Web Application Development
Fast, responsive, and fully accessible web applications built on Next.js and React — with automated browser testing checking every release.
90+
mobile Core Web Vitals target score
Web application engineering principles
Performance first
Optimizing Server Components, minimizing JavaScript bundles, and sizing layout shifts to ensure pages load instantly.
Standard compliance
Strict keyboard navigation, semantic layout tags, and screen-reader friendliness matching WCAG 2.1 specifications.
Tested regressions
Every release is validated by Playwright end-to-end integration tests to verify database forms, carts, and checkouts function.
Web engineering capabilities
Next.js & React Applications
Build modular, SEO-friendly frontends using modern frameworks. Leverage React Server Components (RSC) and server-side rendering for optimal speed.
Clean Front-end Engineering
Well-structured TypeScript, semantic HTML, and custom, pixel-perfect CSS that aligns with premium web guidelines and maintains cleanly.
Responsive & Fluid Design
Layouts designed to feel natural on everything from ultra-wide desktop monitors to budget Android mobile screens, without broken views.
Core Web Vitals Optimization
Minimize render-blocking code, scale image footprints, and defer script execution to guarantee high Lighthouse and Real User Core Web Vitals scores.
Accessibility (a11y)
Build custom interactive components (dropdowns, modals, tabs) that meet WAI-ARIA and WCAG guidelines for screen readers and keyboard navigation.
E2E & Unit Testing
Prevent regression errors with automated unit testing (Jest) and End-to-End integration testing (Playwright) checking critical user flows.
Frequently asked questions.
What frontend framework do you recommend for custom web apps?
We recommend Next.js (built on React) for most public-facing web applications due to its excellent performance, routing capabilities, and built-in SEO support. For internal dashboards, we use React combined with lightweight build systems like Vite.
How do you ensure web apps are fully responsive?
We design with fluid grid systems and relative units (rem/em) from the start. We manually test components across a suite of screen widths, operating systems, and browsers to ensure no layout shift or visual regressions happen.
Why is web accessibility (a11y) important for our project?
Accessibility ensures that people with disabilities can use your software. Beyond the ethical and compliance requirements (like the Americans with Disabilities Act or European Accessibility Act), accessible HTML improves semantic structure, which boosts Google search indexing significantly.
Do you write automated tests for the frontend?
Yes. We write unit tests for critical business logic and run End-to-End browser simulation tests using Playwright. This ensures that user actions like logging in, filling forms, and completing checkouts remain bug-free as we ship updates.
How long does it take to build a custom web application?
A focused web application with 5 to 10 page views typically takes about 8 to 12 weeks from discovery to deployment. Large web apps with real-time updates and interactive dashboards take 14 to 20 weeks.
Let’s build something that lasts.
Tell us what you’re building. We’ll tell you exactly how we’d build it.
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