Software development / Web app development
Web apps and platforms, built end to end.
A web app development company for React and Next.js platforms, SaaS products and portals, with the backend, integrations and AI features behind them.
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Web app development services. The interface, the platform and everything in between.
Web platforms
React and Next.js applications for customers, partners and teams.
SaaS products
Multi-tenant products with workspaces, plans and payments.
Portals and dashboards
Customer and staff portals, admin tools and reporting.
Backend and APIs
The services and APIs behind the app, shared with mobile when needed.
AI features
Assistants, extraction and recommendations built into the app.
Real-time features
Messaging, notifications and live updates.
Payments
Subscriptions and payments through providers such as Stripe.
Performance and QA
Testing, monitoring and fast pages as usage grows.
Support and scale
New features and reliability after launch.
Web platforms we have built. Each result comes from a delivered engagement.
AI SaaS for fit-out & construction
An AI SaaS platform from drawing to quotation, for English and Chinese-speaking teams.
5-stage connected workflow AI · SocialProject Nova: AI social discovery platform
Native iOS and Android apps and a React and Next.js web platform on one backend, with AI-assisted discovery. UK.
3 apps on one shared backend AI · InsuranceFull-stack AI platform for insurance
Fragmented policy, claims and correspondence data connected into one structured workflow.
~2.5x faster processing AI · EdTechProject Atlas: AI e-learning platform
AI study paths, video lessons, live virtual classes and certificates across iOS, Android and web. Australia.
9 core platform modulesNeed a web platform built properly?
The technology behind our products. What our delivered platforms run on.
01 / 07
Mobile
Native apps and in-app payments.
- Native iOS
- Native Android
- Apple Pay
- Google Pay
02 / 07
Web
Web apps and dashboards.
- React
- Next.js
03 / 07
Backend
The services and APIs behind the product.
- Ruby on Rails
04 / 07
Data
Where product data lives.
- PostgreSQL
- Redis
05 / 07
Cloud and app services
Hosting, auth and app services.
- AWS
- Firebase
06 / 07
Payments and analytics
Taking payments and measuring what users do.
- Stripe
- Amplitude
07 / 07
AI
Models and tooling for AI features.
- OpenAI
- Anthropic Claude
- OpenRouter
- LangChain
- Langfuse
From idea to production. Four stages, with a working version reviewed at each one.
-
Discovery
Map the product, the systems and data involved, and what good looks like.
Discovery notes
- Users and their key journeys
- Systems and data involved
- What the first release must do
-
Scope & architecture
Agree the architecture, success measures and delivery milestones.
Solution design
- Application architecture
- Design system
- Release milestones
-
Build
Build against real data, with a working version reviewed at each milestone.
Working build
- Working app at each milestone
- Tests on real data
- User feedback
-
Ship & support
Roll out to production with monitoring and a defined support window.
Production rollout
- Production launch
- Monitoring
- Roadmap for the next release
Why Avinya for web apps. One team for the front end, the backend and the AI.
Proven platforms
Construction, insurance, social and e-learning web platforms in production.
Web and mobile ready
Backends designed to serve web, iOS and Android.
AI built in
AI features designed into the product from the start.
We stay after launch
Support, releases and new features after go-live.
Results from the platforms we built. Each number links to the engagement it came from.
Engagement models. Pick the shape that fits where you are.
Dedicated team
A dedicated team that works as an extension of yours, from first release to scale.
Project-based
A defined scope, milestones and delivery date for a specific product or workflow.
Consulting & advisory
Architecture and readiness advice before you commit to a build.
What our clients say.

AI SaaS for construction
“Avinya Labs delivered exactly what we needed. When a critical issue came up, the team stayed up until midnight so we weren't left hanging.”
Guides on this topic. Plain answers to the questions buyers ask first.
How to Build an MVP: Steps, Timeline and Cost Drivers
Seven steps from one customer and one job to a first release.
Read the guide → GuideWhy a Minimum Lovable Product Beats an MVP
What an MLP adds to an MVP, and when to choose it.
Read the guide → GuideHow to Build a RAG System for Your Company Knowledge Base
Architecture, components and stack choices, and when RAG is the wrong tool.
Read the guide →Web app development FAQs.
Which technologies do you use for web apps?
Our delivered web platforms use React and Next.js on the front end, with PostgreSQL, Redis and cloud services such as AWS behind them. We choose per product.
Can the web app share a backend with a mobile app?
Yes. Project Nova runs web, iOS and Android on one shared backend, and Project Atlas connects its apps to one unified backend platform.
Can you build a SaaS product?
Yes. See AI SaaS development and our construction SaaS case study.
How long does it take?
It depends on scope, platforms and integrations. We agree milestones up front and review a working version at each one.
Who owns the code?
Ownership, licensing and handover are agreed in the contract before work starts.
What should a web app development company include by default?
Authentication, input validation, logging, backups and a deployment pipeline. Our web app development company work is checked against the OWASP Top 10 before every release.
Free tool
How ready is your business for AI?
Twenty questions, about four minutes. You get a score across five areas and what to fix first.