Service
Custom Web Application Development
When spreadsheets and off-the-shelf tools run out of road, you need software shaped around your business. NexusNao designs and builds custom web applications with modern engineering discipline: type-safe codebases, automated testing, accessibility and performance budgets from day one.
Problems we solve
Sound familiar?
Business-critical processes running on spreadsheets and email
Off-the-shelf software that forces painful workarounds
Ageing internal tools nobody dares to touch
Agencies delivering unmaintainable code without tests
Capabilities
What NexusNao delivers
Product engineering
Full-stack web applications with React, Next.js and type-safe APIs.
Internal platforms & portals
Operations dashboards, customer portals and partner platforms.
Real-time & collaborative UIs
Live data, notifications and multi-user collaboration where work demands it.
Accessibility engineering
WCAG-conformant interfaces tested with keyboards and screen readers.
Performance engineering
Core Web Vitals budgets enforced in CI, not checked after launch.
Typical use cases
Where this lands first
- Operations platforms replacing spreadsheet chaos
- Customer self-service portals
- Booking, quoting and workflow systems
- Data-heavy dashboards and admin panels
- AI-augmented internal tools
Recommended technology
Tools we reach for
- Next.js & React
- TypeScript
- Node.js
- PostgreSQL
- Prisma / Drizzle
- Tailwind CSS
- Vercel & AWS
Final technology choices are made per project, on evidence — never by default.
Delivery process
How the engagement runs
Shape
Workflows, users and success metrics before any code.
Design
Prototypes tested with real users of the system.
Build
Iterative delivery with weekly demos and automated tests.
Evolve
Post-launch measurement, support and roadmap.
Benefits
What you get out of it
Software that matches your process exactly
A codebase your future team can maintain
Accessibility and performance as features, not afterthoughts
Room to add AI capabilities on a solid foundation
FAQ
Custom Web Application Development questions
Straight answers to the questions teams usually bring us.
How long does a custom web application take?
A focused first release typically ships in eight to fourteen weeks depending on scope. We deliver in increments, so you see working software from the first weeks.
Who owns the code?
You do — full repository ownership, documentation and handover are standard.
Can you take over an existing codebase?
Yes. We start with a technical audit, stabilise the riskiest areas, then improve incrementally while shipping the features you need.
Related services
Often combined with
Intelligence, made operational.
Ready to talk custom web application development?
Share where you are today. We'll respond with an honest read on feasibility, timeline and the fastest route to value.