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Service

Web Application Development

We build web applications that carry genuine business logic: complex domain models, role-based access, integrations with systems of record and interfaces people use all day.

What is web application development?

Web application development is building software that runs in a browser and carries real business logic — user and role models, workflows, validation rules, persistent data and integration with other systems. It differs from website development, which is primarily concerned with presenting content.

The engineering effort concentrates in places a visitor never sees: how state is modelled, how permissions are enforced on the server, how concurrent edits are resolved, and how the application behaves when a dependency is slow or unavailable.

The applications we build tend to replace a spreadsheet, a manual process or an ageing internal tool. They are used daily by people who know the domain better than we do, which means the interface has to be fast, predictable and honest about what it is doing.

We render on the server wherever possible, so pages arrive complete and indexable. Client-side JavaScript is added where interaction genuinely requires it. Authorisation is enforced on the server for every request, never assumed from a hidden button.

Business problems

What this usually solves.

The situations clients describe when they start this conversation.

A spreadsheet holding a critical process

A shared workbook has become the system of record, with no validation, no audit trail and no safe concurrent editing.

An internal tool nobody can safely change

The original developer has gone, there are no tests, and every change risks breaking something unrelated.

Off-the-shelf software that does not fit

A commercial product covers most of the process, and the remainder is handled by workarounds that create more work than they save.

Performance that frustrates daily users

Pages take seconds to load and interactions lag, which for staff using the system all day is a real productivity cost.

Capabilities

What we bring to it.

Domain modelling

Data and workflow modelled around how the business actually operates, including the exceptions that matter.

Authorisation design

Roles, permissions and record-level access enforced server-side and testable in isolation.

Server-rendered interfaces

Next.js App Router with server components, so content is in the HTML and the client bundle stays small.

Complex forms and workflows

Multi-step processes, conditional logic, draft state, validation on both sides and clear error recovery.

Integration with systems of record

The application reads and writes to the ERP, CRM or finance system rather than becoming another silo.

Accessibility and performance

Keyboard operability, semantic markup, meaningful focus states and Core Web Vitals treated as requirements.

Deliverables

What we build

  • Internal operations platforms replacing spreadsheets and manual process
  • Customer and partner portals with scoped, audited access
  • Booking, scheduling and resource management applications
  • Document and approval workflow systems
  • Admin consoles and back-office tooling for existing products
  • Rebuilds of legacy internal applications on a supported stack

Stack

Technology approach

Server-first by default. Client interactivity is added deliberately, where the interaction genuinely needs it.

Technology choices by architectural layer
LayerWhat we use
FrameworkNext.js App Router, React server components, server actions
DataPostgreSQL with typed access, migrations under version control
AuthSession or token auth, Microsoft Entra ID for enterprise identity
ValidationShared schemas validated on the client and enforced on the server
DeliveryAzure or AWS with preview environments and automated pipelines
QualityAutomated tests, accessibility checks, performance budgets in CI

Process

How we deliver.

  1. 01

    Discover

    Understand business requirements and existing systems.

  2. 02

    Architect

    Design product, cloud, integration and data architecture.

  3. 03

    Engineer

    Build production-grade software.

  4. 04

    Launch

    Deploy, integrate and validate.

  5. 05

    Scale

    Optimize, monitor and evolve.

FAQ

Web Application Development — questions we are asked

How is this different from building a website?

A website presents content. A web application holds state and logic: users, permissions, workflows, validation and integrations. The visible interface is a small part of the work; most of it is in the domain model and the server-side rules.

Can you work with our existing database?

Yes. Building a new application over an existing schema is common, particularly when other systems still depend on that data. We map the schema, identify constraints, and decide where to adapt rather than migrate.

Do you rebuild or improve what we have?

It depends on the state of the code and how well the domain model still fits. Where the model is sound, incremental improvement is faster and safer. Where the foundation no longer matches the business, a rebuild behind a stable interface is usually cheaper over two years.

Will it work on mobile?

Yes — we design responsively from the smallest layout up rather than shrinking a desktop screen. Where an application needs offline capability, camera access or push notifications, a native or cross-platform mobile app is the better answer.

Planning web application development work?

Tell us about the systems involved and the constraints. We will come back with an architecture and a delivery sequence.