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ONXCODE

Web applications, engineered for speed

High-Performance Web Applications

From a customer portal to a booking platform or an internal operations tool, we design and build web applications that load instantly, rank well and turn visitors into customers. Senior engineers own the architecture from the first sketch to launch day and beyond.

  • Senior engineers only
  • NDA from day one
  • You own the code

What we can do for you

Everything this service covers

Concrete things we build and run for your business, not vague promises.

  • Fast on every device

    Pages that open instantly on real phones and real networks, with Core Web Vitals in the green from day one.

  • Built to be found

    Clean structure, server rendering and structured data, so search engines understand every page you publish.

  • Portals and dashboards

    Customer portals, admin panels and role-based dashboards that show each person exactly what they need.

  • Booking and ordering flows

    Reservations, quotes, orders and payments designed to feel effortless, so fewer people drop off halfway.

  • Connected to your tools

    Your CRM, payment gateway, ERP or WhatsApp, integrated cleanly so data flows without copy and paste.

  • Arabic and English, done right

    True right-to-left layouts, not mirrored afterthoughts, with numbers, prices and names that read correctly.

Is this for you?

Where this makes the biggest difference

  • A growing company with an outdated website

    You need

    A fast, modern site that brings in qualified leads instead of just looking good.

    We deliver

    A high-performance web app with clear journeys, lead capture and a CMS your team can run.

  • A founder launching a new product

    You need

    A solid first version that can grow without being rebuilt in a year.

    We deliver

    A scalable architecture, a focused first release and a roadmap for what comes next.

  • A team drowning in spreadsheets

    You need

    One internal tool that replaces scattered files and manual steps.

    We deliver

    A secure web app with roles, dashboards and automations shaped around how you work.

What you get

Deliverables you can count on

Built with Next.js and React. We engineer blazing-fast, SEO-optimized web apps designed for seamless user experiences and maximum conversion rates.

  • Customer portals and self-service dashboards
  • Booking, scheduling and quotation systems
  • Marketing sites with server rendering and technical SEO
  • API design and third-party integrations
  • Admin panels your team will actually enjoy using

Built with

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Laravel
  • Vercel

The outcome

Faster pages, higher conversion and a codebase your next hire can read.

How we deliver it

A clear path from brief to launch

  1. 01

    Discovery and scope

    We map your goals, users and must-haves, then agree on a clear scope and fixed milestones.

  2. 02

    Design and architecture

    Journeys, wireframes and a technical plan chosen for speed, security and growth.

  3. 03

    Build in milestones

    Working software every week, reviewed with you, with performance and accessibility checked as we go.

  4. 04

    Launch and grow

    A monitored launch, fixes for anything that surfaces and a plan for the next improvements.

Related work

  • Real estateLive, public site

    Lake Yard

    Zada Developments

    An Arabic-first launch page for a commercial development in West Cairo, built around one job: turning visitors into qualified enquiries. It scored 95 for performance on mobile with zero layout shift.

    • PageSpeed 95 on mobile
    • Arabic-first, right-to-left
    • Built for qualified enquiries
  • Healthcare · ClinicsOur product, demo on request

    KeepUp

    Our own product

    Our multi-branch clinic system: a booking site where patients reserve with a small deposit, a front-desk and operations portal, and a doctor and owner portal with specialty charts and cross-branch finance. Arabic and English, light and dark.

    • Three portals, one system
    • Five specialty charts
    • Arabic and English, light and dark
  • Fintech · EducationLive, behind a login

    OSJ Pay

    School payments platform

    A payment gateway for Saudi schools on Moyasar: guardians pay tuition by card, mada, Apple Pay or Google Pay, and every edge case between the click and the settled payment is handled.

    • Live, collecting real fees
    • mada, Apple Pay, Google Pay
    • Payments verified server-side

FAQ

Questions we are often asked

01. Which technologies do you use?

Usually Next.js and React on the front, with Node.js or Laravel behind them. We pick what fits your product and team, not what is fashionable.

02. Can you take over an existing project?

Yes. We start with a short technical audit, tell you honestly what to keep and what to fix, and then continue from there.

03. Will my team be able to update content?

Yes. We connect a CMS or build an admin panel so your team can edit pages, products and content without a developer.

04. How do you keep the site fast after launch?

Performance budgets, image and caching rules, and monitoring. If a change slows a page down, we see it before your customers do.

Explore more

Services that work well together

All services
  • Figma to Pixel-Perfect Code

    Your Figma designs built as pixel-perfect, retina-sharp interfaces that meet accessibility contrast standards. Built with judgement, not just copied.

  • AI Agents & Business Automation

    Smart agents that answer your customers on your website, WhatsApp and email, plus automations that follow up on every lead and order.

  • n8n Workflow Automation

    Custom n8n workflows that connect your website, store, CRM, WhatsApp and email, so repetitive work runs itself around the clock.

Let's build

Have a bottleneck worth solving?

Tell us where your platform is holding you back. A senior engineer will map the fastest route from problem to production.