aez.digital
02Custom Development

Custom Development

Bespoke software engineered for performance, scale, and longevity.

Off-the-shelf doesn't cut it when your requirements are specific. We design and build custom web applications, APIs, and integrations using modern, maintainable technology — Next.js, React, Node.js, TypeScript — with engineering practices that keep the codebase clean as your product evolves.

View Related Work
Deliverables

What's Included

Custom web application or internal tooling (Next.js / React)
RESTful and GraphQL API design and development
Third-party system integrations (CRM, ERP, payment, data)
Responsive, mobile-first UI implementation
Performance optimisation — Core Web Vitals A+ target
WCAG 2.1 AA accessibility audit and remediation
CI/CD pipeline setup, staging environment, and production deployment
Methodology

Our Approach

Technical Discovery

We scope every functional and non-functional requirement — architecture, data models, integrations, performance budgets, and hosting strategy — before writing a line of code.

Architecture & Component Design

We define the system architecture, establish the component library and design system in code, and wire up the data layer — so every subsequent sprint builds on a solid foundation.

Iterative Build & QA

We develop in two-week sprints with continuous client demos. Every feature is tested across devices, browsers, and edge cases before it moves to staging.

Launch & Post-Launch Support

We manage the full deployment, run final performance and security checks, and monitor post-launch — then hand over with full documentation and a knowledge transfer session.

Results

Outcomes

98+

Average Lighthouse performance score

2.3×

Average improvement in page load speed

35%

Average uplift in on-site conversion rate

Featured Project

Related Work

Case Study

Sova Analytics

Ready to start?

Let's talk about how custom development can move your business forward.