Web Development
We design and build modern, responsive, and high-performing websites and web applications — from marketing sites and e-commerce stores to portals, dashboards, and SaaS web platforms — optimised for speed, SEO, and user experience.
- Senior delivery team
- React, Next.js & TanStack
- Performance-first
Your digital storefront
Your website is often the first impression customers have of your business — and increasingly the place where they decide whether to trust you. Professional web development turns that impression into an experience: fast-loading pages, responsive layouts, and intuitive navigation that guide visitors toward action.
We build websites and web applications that perform reliably, look consistent on every device, and scale as your business grows. Security is built in from the start, and every feature is aligned with a clear business goal — whether that's generating leads, selling products, or serving your customers online.
Fast load times and smooth interactions that keep visitors engaged.
Consistent, polished layouts on desktop, tablet, and mobile.
Clear structure and intuitive flows that make it easy to take action.
Architecture that grows with your traffic, users, and feature set.
Secure development practices and protections applied from day one.
Every page and feature engineered to support measurable outcomes.
Our core web stack
What we build
From high-impact marketing sites to full-scale web platforms — built to perform, look great, and grow with you.
Business Websites
Clear, conversion-focused sites that tell your story and turn visitors into customers.
Corporate Websites
Polished multi-page corporate presences that build credibility and support sales teams.
E-commerce Websites
Online stores with fast, secure checkouts, product management, and payment integration.
Web Applications
Full-featured browser-based applications tailored to your workflows and users.
Customer Portals
Self-service portals where clients log in to manage accounts, orders, and resources.
Admin Dashboards
Central control panels with the tools your team needs to manage content and operations.
SaaS Web Platforms
Multi-tenant web platforms with subscriptions, roles, and analytics built to scale.
Custom Web Solutions
Anything else — bespoke web tools and platforms engineered around your exact needs.
Web development capabilities
Everything needed to take a website or web platform from concept to launch — and keep it running smoothly.
Responsive Web Development
Layouts that adapt seamlessly across every screen size, tested on real devices.
Frontend Development
Clean, maintainable interfaces built with modern component-based frameworks.
Backend Development
Reliable server-side logic, APIs, and services that power your web platform.
API Integration
Connecting your site or app to internal systems and external services through APIs.
Database Integration
Secure data modelling and storage that keeps your content and users' data safe.
Third-Party Integrations
Payments, CRM, analytics, marketing, and other tools woven into your build.
Performance Optimization
Fast load times, smooth rendering, and strong Core Web Vitals scores.
Security
Hardened code, secure authentication, and safe data handling as standard.
CMS Development
Content management systems that let your team update content without a developer.
E-commerce Development
Storefronts, carts, secure checkout, and order management built for conversion.
Key benefits
Professional web development delivers advantages that every business can feel — for visitors, for teams, and for growth.
Mobile-Responsive Experiences
Your site looks and works beautifully on every phone, tablet, and desktop.
Fast Loading Performance
Optimised pages load quickly, keeping visitors engaged and improving SEO.
Scalable Architecture
Built to handle growing traffic, users, and features without a rebuild.
Better User Experience
Intuitive navigation and clear calls-to-action that guide visitors forward.
Secure Implementation
Security best practices applied throughout the build and maintained after launch.
Easy Maintenance
Clean, well-documented code that's simple to update, extend, and hand off.
Business-Focused Functionality
Features designed around your goals — lead generation, sales, or customer service.
Integration with Existing Systems
Connects with your CRM, payments, analytics, and other tools you already use.
Our web development process
A clear, collaborative workflow that takes your website or web platform from idea to launch with confidence.
Discovery & Requirements
We understand your goals, audience, and scope.
Planning & Architecture
We map structure, content, and technical approach.
UI/UX Design
We craft clear, on-brand interfaces and flows.
Development
We build your site or web app with clean code.
Testing & Optimization
We refine performance, usability, and quality.
Launch & Ongoing Support
We deploy, monitor, and support you afterwards.
Technology capabilities
We build on modern, battle-tested technologies that deliver fast, reliable, and maintainable web experiences.
Frontend
- React
- Next.js
- TypeScript
- Tailwind CSS
Backend & APIs
- Node.js
- .NET / ASP.NET Core
- REST & GraphQL APIs
- TanStack
Data & Storage
- PostgreSQL
- SQL Server
- Redis
- Cosmos DB
Performance & Delivery
- Core Web Vitals
- SEO optimisation
- CI/CD Pipelines
- Azure / AWS
Businesses that benefit the most
Every business needs a strong web presence. These are the teams and organisations we most commonly support.
Startups
Landing pages, MVPs, and early web platforms to launch fast and validate ideas.
Small & Medium Businesses
Professional sites and simple web tools that help local and growing businesses win online.
Enterprises
High-volume portals, dashboards, and platforms built for performance and scale.
E-commerce Businesses
Online stores and marketplaces designed to convert traffic into sales.
SaaS Companies
Multi-tenant web applications, marketing sites, and docs built for product-led growth.
Professional Services
Credible websites and client portals for agencies, consultants, and firms.
Organisations with Custom Needs
Non-profits, public bodies, and teams that need a bespoke web platform, not a template.
Why ActivoDev for web development
We are a small, senior team. Every web project is led by experienced engineers who write the code, make the architecture decisions, and take ownership of the outcome. You work directly with the people building your site — no handoffs between sales and delivery, and no junior-heavy pyramid.
We build with React, Next.js, and TanStack — a modern stack optimised for speed, SEO, and accessibility — and we treat every project as a business investment. Our responsive, scalable builds are clean and maintainable, backed by a quality-focused process and ongoing support after launch.
Experienced development team
Senior engineers and designers who ship web projects end to end.
Business-focused solutions
Every page and feature is built around a measurable business goal.
Responsive & scalable builds
Websites and platforms that look great on any device and grow with you.
Clean, maintainable code
Well-structured, documented implementation your team can own and extend.
Quality-focused process
Testing, reviews, and performance checks are standard — not optional.
Ongoing support
We stay on after launch with maintenance, monitoring, and enhancements.
Frequently asked questions
How long does a website take to develop?
A typical marketing website takes 4–8 weeks, while more complex web applications and portals take 8–16 weeks. We'll provide a clear timeline after the discovery phase.
Can you build a custom web application?
Yes. We build full-scale web applications — customer portals, admin dashboards, e-commerce platforms, and SaaS products — engineered around your specific requirements.
Will the website work on mobile and tablet devices?
Absolutely. Every site we build is responsive and tested across desktop, tablet, and mobile browsers to deliver a consistent experience on any device.
Can you integrate third-party services?
Yes. We regularly integrate payment gateways, CRMs, analytics, marketing tools, and other third-party APIs into websites and web platforms.
Can you redesign or improve an existing website?
Yes. We can redesign, rebuild, or incrementally improve existing websites — including performance, SEO, and accessibility upgrades.
Do you provide ongoing maintenance and support?
Yes. We offer maintenance retainers covering updates, monitoring, security patches, and ongoing feature enhancements after launch.
Ready to build a better web experience?
Tell us about your website or web application and we'll respond within one business day with a clear next step — including timeline and pricing.