Tangensys • Plan, deliver, measure
React development
Build clear, reusable interfaces around real user actions. Decide which content needs server rendering and which interactions belong in the browser.
The work to plan together
A scope shaped around this requirement.
- Component architectureScope
- Next.js builds with server renderingReview
- API integrationCheck
- VisitorArrives on a phone or desktop
- NavigationFinds the right page quickly
- Form or integrationEnquiry, booking or order
- Your teamReceives it in the right place
In short
What does React development involve?
React development builds fast, interactive front ends with React and frameworks such as Next.js.
When React development is a useful fit
SaaS products
Design reusable interfaces around real product states, permissions and data.
Web apps
Separate browser behaviour from API responsibilities and loading or error states.
Marketing sites needing interactivity
Keep important content discoverable while using interactivity only where it helps the visitor.
Problems worth addressing first
Use these situations to identify the work that deserves attention before expanding the scope.
- The interface is slow or hard to change
- Pages rely on JavaScript that search engines struggle with
A practical example
A dashboard can update filters without a full reload, while public service pages need accessible text, stable URLs and useful initial HTML.
This is an illustrative scenario to explain the approach, not a claimed client project.
The work we can include
The final quote identifies the deliverables, quantities, approvals and exclusions. Select the work that serves your goal rather than assuming every item is required.
- Component architecture
- Next.js builds with server rendering
- API integration
- Testing
Where we usually begin
Design, backend APIs and hosting requirements must be agreed. Using React does not by itself make a site fast, accessible or search-ready.
Practical detail
Design the states around a real task
For an illustrative searchable product interface, users need useful feedback when data is loading, missing or unavailable. A successful screenshot covers only one of those conditions.
| Part of the work | Example output | How to review it |
|---|---|---|
| Loading | A progress state without a misleading empty result | The user can understand that the request is still running. |
| Empty or failed result | Different messages for no matches and a failed request | Retrying does not erase the user’s query unexpectedly. |
| Keyboard journey | Labels, focus order and actionable controls | The search and result selection work without a mouse. |
| Integration handover | Component behaviour, API fields and public-page rendering checks | The backend team knows the expected data and failure states. |
Public pages also need a deliberate rendering and discovery plan. A browser interface is not automatically suitable for search simply because it was built with React.
Specify the interface states users will encounter
A React interface needs more than a set of components that look right with sample data. Loading, empty, error and long-content states affect whether people can complete a task. Identify the data source and expected response before agreeing the screen design.
An internal dashboard and a public marketing site may have different rendering and discoverability requirements. Choose the approach from those needs and the existing architecture. A library label does not explain how public content becomes available to people or search systems.
Review keyboard use, responsive behaviour and the relevant data or permission states. Keep component responsibilities and API assumptions in the handover. Performance changes should be measured against a representative environment rather than inferred from a screenshot.
Free technical review
Start with a clear scope and a practical next step.
Tell us what you want to improve and share the relevant website or project details. We will review the starting point, recommend a suitable scope and provide a custom quote.
The initial review is free. Delivery, third-party charges and ongoing support are quoted separately.
Process
How the work is delivered
Review the starting point
Review the current setup, examples of the problem and the information needed to agree the work.
Agree scope and sign-off
Discovery covers existing code, users, data and external systems. We turn the main workflow into sign-off checks, then agree milestones and responsibilities.
Deliver and review
Changes are reviewed on a test environment before release. Handover includes agreed documentation, access and a maintenance route; ongoing support is separately defined.
Hand over the next steps
Review the agreed outputs together. Confirm what your team maintains and what needs a separate ongoing arrangement.
What progress should mean
Measures that match the work
Test task completion, loading states, error states, keyboard use and rendering of public content. Evaluate performance on realistic devices.
A record of delivery
See what was completed, reviewed and still dependent on access or approvals. Project delivery and business results are reported separately.
Clear limits in the data
We explain what can be verified and where a result is only an estimate. Contact clicks, conversations and sales are different actions.
Scope and responsibilities
You keep ownership of your business accounts and approved deliverables under the agreed contract. Any third-party licences, subscriptions or usage fees are identified before you commit.
Can React work be separated from backend development?
Yes, when the interface contract and ownership are clear. Agree endpoints, data formats, authentication behaviour and error states. If those are still changing, include coordination or backend work in the scope instead of assuming the front end can independently complete the journey.
Does React development include the backend?
Only if agreed. The scope should identify the API owner, data contract and responsibility for authentication and storage.
Can public React pages be optimised for search?
Yes, with an appropriate implementation and checks for accessible rendered content, URLs and metadata. We assess the actual site rather than assuming one framework setting solves it.
Is React good for SEO?
With server-side rendering (for example Next.js), yes.
How is React development priced?
We quote against your goals, current setup and agreed scope. The quote separates delivery from third-party costs and ongoing support. You receive a custom quote within 2 working days.
How long does the work take?
The timeline follows the size of the agreed scope, access, content and approvals. We confirm milestones in the quote; a simple change and a full implementation need different schedules.
How will we communicate?
Your point of contact agrees a review rhythm with you. We use email, WhatsApp and scheduled calls, with decisions and scope changes recorded clearly.
What do you need to get started?
Share your current website or system, your main goal and examples of what is not working. We then agree the access and information needed for discovery.
Is everything included in the free review?
No. The free initial review helps define the next step. Detailed research, design, implementation and ongoing support are included only when stated in your quote.
Explore the related services
Let’s agree the right next step.
Tell us your goals and current setup. We’ll recommend a practical starting point and provide a custom quote.
Custom quote within 2 working days