Web application development services
Customer-facing web applications and platforms engineered for speed, accessibility and search visibility — and built so they stay that way after launch.
Fast on launch day is not the same as fast.
Performance is not a phase at the end of a project. It is an outcome of architecture decisions made in the first week — what renders on the server, what ships to the browser, and how much of the page depends on JavaScript arriving before anything is readable.
Sites that were quick at launch get slower with every marketing tag, hero video and third-party widget added afterwards, because nothing in the process pushes back.
Performance and accessibility as build constraints.
We render on the server by default and send the browser only the JavaScript an interaction genuinely requires. Most pages stay useful before a single client component has hydrated.
Performance budgets and accessibility checks run in the pipeline, so a regression fails the build instead of quietly shipping.
What your build can include
- Custom design and front-end engineering
- Server-rendered architecture with minimal client JavaScript
- Core Web Vitals budgets enforced in CI
- WCAG 2.2 AA accessibility, keyboard and screen-reader tested
- Structured data, metadata and technical SEO
- Headless or traditional CMS, set up for non-technical editors
- Analytics, consent management and conversion tracking
Technology, chosen for the job
- Front end: Next.js, React, TypeScript, Tailwind CSS
- Content: Headless CMS, Structured content, Media pipeline
- Delivery: Edge CDN, Image optimisation, Preview deploys
See the engineering in practice
Cart Nest
Demo build
A working demonstration we built and published. Seeded data and simulated payments — no client, and nothing here is a live business.
A retail operating system: catalogue, inventory, orders, point of sale, storefront and analytics on one shared data model.
Open the demo (opens in a new tab)avryxa.com
Platform
Infrastructure we built and run ourselves.
This site: an applicant tracking system, a lead and business-development console, a grounded AI assistant and a consent-aware analytics stack behind a marketing front end.
Ask for a walkthroughBefore you start
How much will ecommerce software cost?
Ecommerce software cost depends on your catalogue, checkout, inventory and integrations. A standard store is a different scope from subscriptions, wholesale pricing or a system connected to your ERP. Compare an existing commerce platform with a custom build before deciding. Separate design, development, migration and testing from recurring hosting, platform subscriptions, payment-provider fees and support. Share what you sell, your sales channels and current tools so Avryxa can prepare a tailored ecommerce development proposal.
Do you use templates?
No. Design and front-end are built for the project. We do reuse our own engineering foundations — component patterns, CI configuration, accessibility tooling — because rebuilding those from scratch each time would cost you money for no benefit.
How long does a web application take?
A focused marketing platform is typically six to ten weeks. An application with accounts, permissions and integrations is usually three to five months. We give a stage-by-stage timeline before anyone commits.
Can our team edit content afterwards?
Yes. Content models are designed around what your team actually publishes, and we include training and documentation at handover.
Do you work with an existing design or design system?
Often. If you already have a design system we will build to it and extend it properly rather than working around it.
What about SEO on a JavaScript-heavy site?
Pages are server-rendered, so crawlers get complete HTML. Metadata, canonicals, sitemaps and structured data are part of the build rather than a plugin added later.
Let’s scope your first release.
Tell us your users, main workflow, existing systems and launch priorities. We separate the build, integrations, migration and running costs in a tailored proposal.
Prefer email? contact@avryxa.com