All Upwork engagements

Oct 25, 2020 to Aug 15, 2022

Web & product / Client work

React interfaces for the long run.

React frontend development for a web application, under the October 2020 to August 2022 contract.

Web applications

React development

Ongoing collaboration

THE TECHNOLOGY

React

INTERFACES / APPLICATION STATE

My role

React frontend developer

01 / THE CONTEXT

The challenge.

This engagement centered on developing the frontend of a React web application.

02 / ENGAGEMENT FOCUS

Where the work focused.

The recorded scope was React webapp frontend development. This contract is presented separately from the earlier engagement with the same job title.

03 / THE ENGINEERING

Technology & trade-offs.

01

Interface

React

Technology map: recorded tools grouped by responsibility.

My engineering perspective: what each approach helps solve, and what needs care.

React: organize the interface around reusable behavior

I separate reusable controls from the screens that assemble them. This keeps a change to a shared control from turning into the same fix repeated across several pages.

The trade-off: Reuse earns its place when behavior is shared. Premature abstractions make simple screens harder to change.

Application state: choose the smallest useful structure

Zustand suits a small shared store; Redux makes complex state changes explicit through actions and reducers. The choice depends on how much state different screens must coordinate.

The trade-off: These are example options. I keep server data and temporary screen state distinct before introducing either store.

Example tools: Redux · Zustand. These illustrate the reasoning; historical use on this project is not established.
Contract details and sources

React webapp development, October 2020 contract

Engagement brief based on the original job title and available description.
Contract period
Oct 25, 2020 to Aug 15, 2022
Upwork status
Completed contract · Checked Sep 20, 2026
Work delivery
Delivery date not recorded.
Product today
Current availability not verified
Client feedback
No client feedback recorded
Upwork work history

Your next project

Bring me the hard part.
Let’s work out what’s next.

A new product, a stalled release, or a system that needs a stronger foundation. Tell me where you are and where you want to go.

Let’s talk about your project

Xavier Perez