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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.

Get a quote See our work
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.

How we deliver

From first call to launch

The five stages every Custom-Coded Websites project moves through - you see and approve the work at each one.

  1. 01

    Discovery

    What the site must do that a template cannot - interactions, integrations, performance or scale.

  2. 02

    Architecture

    The stack chosen for the job (for example Next.js or Laravel), hosting and how content will be managed.

  3. 03

    Design

    Interfaces designed and agreed before code, including the interactive parts.

  4. 04

    Build

    Hand-written, tested code with the integrations your business relies on.

  5. 05

    Launch & handover

    Performance and security checked, deployment set up, and the code handed to you with documentation.

Related work

Work we have shipped

Real projects from our case studies.

All case studies
www.auditoralpha.ai
Auditor Alpha - live site

Auditor Alpha

Finance and revenue assurance

Revenue-assurance software that reconciles the CRM with the accounting ledger to catch work delivered but never invoiced.

Read the case study
giftlist.com
GiftList - live site

GiftList

Consumer and e-commerce

A universal wish list and gift registry: save gifts from any store, share one link, and run group gift exchanges.

Read the case study
netlynx.pk
Netlynx - live site

Netlynx

Software for internet service providers

Our own product: the operations platform for ISPs - billing, subscribers, WhatsApp automation, complaints, stock and payroll.

Read the case study
FAQ

Custom-Coded Websites: questions, answered

Something else? Ask us directly →

When you need something a template fights against - a calculator or simulator, a product dashboard, unusual integrations, or performance a page builder cannot reach.

We pick per project. Recent builds have used Next.js, React and Laravel; the choice is explained to you before work starts.

You do, on final payment - repository access included, so any developer can continue the work.

Yes, where it makes sense we connect a headless CMS or an admin panel so your team can change content themselves.

We can set up hosting on your own account and deploy to it, so nothing is locked to us.

Ready to get started?

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

Start your projectChat on WhatsApp
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Related services

Software DevelopmentUI/UX DesignBusiness Website Development
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  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
Reviews

Rated by our clients on Trustpilot

Rated 3.7/ 5 Based on 1 review Trustpilot
1 month ago

I'm Alex, Business Developer at SprintOps, a project management and operations solutions company. We contracted ECOMSY for advanced web and app development, as well as a custom ERP system for our business, and the entire experience exceeded our expectations.

Alex D.,
Review us onTrustpilot