Products that happen to run in a browser.
The browser is now the default runtime for serious software. That raises the bar on performance and accessibility rather than lowering it.
JANNEX builds web applications: customer portals, internal dashboards, marketplaces, SaaS interfaces and content platforms. Work covers interface design, front-end engineering, back-end services, performance, accessibility and deployment.
Where web applications go wrong
Not in the demo. In the third-party script, the unindexed query and the interface nobody can use with a keyboard.
- A first load that ships megabytes before anything is readable
- Layout that moves under the user's finger while assets settle
- State handled four different ways in the same codebase
- Screens unreachable without a mouse
- A dashboard that was fast until the account with 40,000 rows signed up
How we build for the browser
Performance and accessibility are structural, not a pass at the end.
Render the right thing on the server
Static, server-rendered or client-rendered chosen per route, based on what the route actually is.
Budget the payload
A weight budget per route, enforced in the pipeline. Dependencies justify their size.
Design the data path
Pagination, indexing and caching designed against realistic volumes, not seed data.
Accessible by construction
Semantic structure, keyboard paths and focus states built in, then verified.
What this covers
Application types
- Customer portals
- Operational dashboards
- Marketplaces
- SaaS interfaces
- Booking and workflow tools
- Content platforms
Front end
- Design systems and component libraries
- State and data-fetching architecture
- Real-time interfaces
- Offline and resilient behaviour
- Internationalisation
Quality
- Core Web Vitals budgets
- WCAG 2.2 AA conformance
- Cross-browser testing
- Visual regression
- Error and performance monitoring
Technology
The working set for this capability. Choices are made per engagement, against your constraints and your team's skills.
Where it is typically applied
Patterns we see repeatedly, described generically. Your version will differ in the details, and the details are the work.
Customer self-service portal
Account, documents, requests and status in one place — the fastest way to reduce inbound support volume.
Operations dashboard
Live view across systems, built to stay responsive at production data volumes.
Marketplace or multi-sided platform
Listings, matching, messaging and payments with roles enforced server-side.
Marketing site with real infrastructure
Structured content, clean URLs and schema, so search engines and AI systems can both read it.
How the engagement runs
The same seven stages, scoped to the size of the problem.
Understand
We start with the constraint, not the feature list. What breaks today, who it affects, what it costs.
Define
A written scope with the trade-offs made explicit — what is in, what is deferred, what we will measure.
Design
Interfaces, data models and system boundaries designed together, because they constrain each other.
Build
Short cycles against a working environment. Reviewed code, tests where they earn their keep.
Launch
Staged rollout with monitoring in place before traffic, not after the first incident.
Learn
Instrumented usage read against the thing we said we would measure at Define.
Scale
Performance, cost and operations tuned once real load has told us where the pressure is.
Questions we are asked
Do you work from designs, or produce them?
Either. If designs exist we build to them and flag anything that will not survive real content. If not, interface design is part of the engagement.
How do you keep it fast as it grows?
Per-route payload budgets in CI, query plans reviewed against realistic data volumes, caching at the layer that actually helps, and monitoring that reports on real users rather than a lab score.
Is accessibility included?
Yes, as part of the build. WCAG 2.2 AA is the working standard: semantic structure, keyboard operation, visible focus, sufficient contrast and reduced-motion support.
Have something worth building?
Tell us the constraint you are working against. If we are not the right people for it, we will say so.
Or write to connect@jannex.in