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Custom Engineering

Custom-coded sites, built from scratch

When a template won't cut it - fully bespoke websites on modern stacks for total speed, control, and flexibility.

ReactNext.jsNode.jsTypeScriptPostgreSQLTailwind
A+performance1.4savg. load0templates used
0
templates used
100%
custom code
1.4s
avg. load
A+
performance

Some projects need more than a page builder can offer: complex interactions, custom logic, unusual integrations, or simply the best possible performance. We build these from the ground up with modern frameworks.

You get a fast, secure, maintainable codebase that does exactly what you need - and nothing you don't.

What's included

  • Hand-built front-ends in React, Next.js, or vanilla stacks
  • Custom back-ends and APIs (Node.js, PHP, Python)
  • Database design and third-party integrations
  • Best-in-class performance and Core Web Vitals scores
  • Accessible, SEO-ready markup
  • Clean, documented code your team can build on

Tools & tech

ReactNext.jsNode.jsTypeScriptPostgreSQLTailwind

What you get

Architecture

A technical plan matched to your goals.

Build

Front-end, back-end, and integrations.

QA

Cross-browser and device testing.

Deploy

CI/CD, hosting, and handover docs.

Get a quote

Tell us about your project and we'll reply within 24 hours.

Free consultation · No obligation
.

Thanks - your request has been received. We'll reply within 24 hours.

Why Ecomsy

Everything you need, done properly

Built from scratch

No bloated templates - clean code shaped to your exact needs.

Lean & fast

Only what you need, so pages are light and lightning fast.

Modern stack

React, Next.js, and Node - a future-proof foundation.

Any integration

Connect to any API, payment, or system you rely on.

Secure & scalable

Architected and tested to grow without rebuilds.

Yours to own

Full source, documented, with no platform lock-in.

Ready to get started?

Tell us what you need and we will map out the path - design, build, and launch.

  1. Written for your case, not a templateNo page-builder bloat, no plugin sprawl, no unused code. 01Discuss this
  2. Performance you can measureLean pages that load fast on real devices and real connections. 02Discuss this
  3. Full source code at handoverDocumented, in your repository, ready for any developer. 03Discuss this
  4. The people who build it are on the callNo account manager relaying messages to an unseen team. 04Discuss this
  5. Security considered from the startInput handling, headers and access control built in, not patched. 05Discuss this
  6. Milestone pricing, agreed up frontApprove a written quote before anything begins. 06Discuss this