CASTERLY CROWN 0%
Solutions / Web Applications

Web apps
that actually
perform.

Fast, scalable, secure web applications built to handle real traffic, real users, and real business complexity — not just look good in a demo.

<1sAvg load time
99.9%Uptime SLA
100%Responsive
casterlycrown.com/app
97
Perf Score
ReactNext.jsNode.jsLaravelPostgreSQLAWSTypeScriptTailwind CSSRedisDockerGraphQLREST APIsMySQLNginxCI/CDCloudFront ReactNext.jsNode.jsLaravelPostgreSQLAWSTypeScriptTailwind CSSRedisDockerGraphQLREST APIsMySQLNginxCI/CDCloudFront

Three categories of web application we build.

From customer-facing platforms to internal operations tools

01

Customer-Facing Platforms

Public-facing web applications that serve your customers — e-commerce, booking platforms, customer portals, self-service dashboards, and branded digital experiences.

React / Next.jsSEO optimisedPayment gatewaysAuth & profiles
02

Internal Operations Tools

Web applications for your teams — workflow management systems, admin dashboards, data entry platforms, approval tools, and internal reporting portals that replace spreadsheets.

RBAC / RolesData tablesWorkflow engineAudit logs
03

Data & Analytics Platforms

Real-time data visualisation, business intelligence dashboards, reporting engines, and data management platforms that turn your raw data into actionable insight.

Real-time chartsScheduled reportsAPI connectorsExport tools

What every web app we build is made of.

The layers we design and connect on every project

Frontend

User Interface & Experience

Responsive, fast-loading interfaces built in React or Next.js. Every interaction is designed around how users actually behave — not what looks good in a design file.

ReactNext.jsTypeScriptTailwindFramer Motion
API Layer

Business Logic & API

The brain of the application — all business rules, data processing, authentication, and external service connections live here. Built RESTful or GraphQL depending on your needs.

Node.jsLaravelREST / GraphQLJWT AuthRate limiting
Database

Data Storage & Retrieval

Right database for the job — relational for structured data, document stores for flexibility, caching for speed. Schema-designed for your query patterns, not retrofitted.

PostgreSQLMySQLMongoDBRedis cacheAWS RDS
Infrastructure

Cloud Infrastructure & DevOps

Deployed on AWS — auto-scaling, load-balanced, with CI/CD pipelines for every release. Infrastructure as code means your environment is reproducible and auditable.

AWS EC2 / ECSCloudFront CDNDockerGitHub ActionsTerraform
Security

Security & Compliance

WAF, DDoS protection, SSL everywhere, OWASP compliance, role-based access control, encrypted data at rest and in transit. Security is architecture, not a plugin.

AWS WAFSSL / TLSOWASPRBACPen testing

What every web application comes with.

Standard across all our web builds

Mobile Responsive

Pixel-perfect on every screen size — phone, tablet, desktop — without a separate mobile site.

SEO Architecture

Server-side rendering, semantic HTML, structured data, and page speed optimisation for organic visibility.

Authentication & Roles

Multi-role user systems — admin, manager, viewer, customer — with granular permissions per section.

Payment Integration

Stripe, PayHere, and other local Sri Lankan payment gateways integrated with full webhook handling.

Email & Notifications

Transactional emails, SMS alerts, and in-app notification systems using AWS SES and SNS.

File Upload & Storage

Secure document and image upload to AWS S3 with access controls, CDN delivery, and virus scanning.

Admin Dashboard

A full admin interface for your team to manage users, content, data, and configuration without touching code.

Analytics Integration

Google Analytics, Mixpanel, or custom event tracking so you understand how people use your application.

How a web project moves from brief to launch.

Five stages, full visibility throughout

01
Discovery

Brief & Scope

Deep dive into requirements, users, integrations, and technical constraints. We define exactly what we're building and why.

02
Design

UX & Architecture

Wireframes, user journeys, data models, and technical architecture. Sign-off before any code is written.

03
Build

Sprint Development

Two-week sprints. Working software demonstrated every fortnight. Feedback incorporated continuously.

04
Test

QA & Performance

Automated tests, manual QA, load testing, security review, and cross-browser/device validation before launch.

05
Launch

Deploy & Support

Staged deployment, monitoring setup, team training, and post-launch support to ensure a smooth go-live.

Tell us what you need to build.

Whether you have a full spec or just an idea, we'll help you shape it into a production-ready web application. Start with a free consultation or reach out directly.

Start the conversation