Hashlogics
Hire

React

Front ends that hold up on the hard screens

Our engineers have built oncology trial matching, live fuel-site dashboards and a repair shop's booking calendar. They join your repo and your review process, and you interview them before anyone starts.

What you are getting

4 things that decide this

  1. 01Senior engineers only, with React running in production across clinical, financial, IoT and marketplace products on this site.
  2. 02You interview every engineer before they join, using your own process and your own bar.
  3. 03They work in your repository, open pull requests against your review rules, and stay on the same product instead of rotating.
  4. 04You own the code from the first commit. Every engineer is interviewed by you, and a no from you costs nothing.

What a React developer actually does here

Most React work is not about components. It is about state that arrives late, arrives twice, or contradicts itself.

On TrialTriage the same screen is read by an admin, a nurse, a patient and an insurer, and each sees a different slice of one oncology record. On ZhoopZhoop a collision shop's calendar updates over WebSockets while a Twilio voice agent books into it, so two sources write to one view. On TankAware a site manager watches tank levels from IoT sensors that drop offline and come back with a gap.

Different industries, one repeated skill. Deciding what the screen shows when the data is incomplete, stale or contested.

What they take off the team that inherits it

Server state, handled once

Caching, refetching and stale data through TanStack Query rather than a hand-rolled loading flag in forty components.

Role-aware interfaces

One product, several audiences. Permissions checked on the server and reflected in the UI, never enforced only by hiding a button.

Real-time views that reconcile

WebSocket updates merged into cached data so a live change and a page refresh agree with each other.

Accessibility built in

Keyboard paths, focus handling and labels done as the component is written. Retrofitting it later costs several times more.

A build that stays fast

Code splitting and honest bundle budgets. Speed is a thing you keep, not a thing you fix in the last sprint.

Where React state actually livesLive
  1. Server dataCached, refetched, shared
  2. URLFilters and the current view
  3. FormLocal until submitted
  4. GlobalSession and theme only
  5. ComponentEverything else

Most React problems we inherit are one category of state stored in the wrong box. Server data in a global store is the usual one.

A client, in their own words

Their attention to detail, quality of employees, and work ethic were outstanding.

Nicolas de Quesada · CEO, Lexpair

How hiring works

  1. 01

    Show us the screen that worries you

    A free call about the product, the team and the part of the interface nobody volunteers to change. If a designer would help you more than an engineer, we say so.

  2. 02

    Meet the engineers

    We put forward people who have maintained a front end through several years of change, and you interview them against your own bar. No is a complete answer.

  3. 03

    They embed

    Your repository, your standups, your pull request rules. One of our engineers is named on the work and stays on the same product.

  4. 04

    They hand over

    Tested components and a written answer to where each kind of state lives, so the next developer is not guessing. Where a team would rather we kept maintaining it, we do that under a service level we agree.

What they work with

Stack

React

React 19TypeScriptNext.jsReact NativeViteTanStack QueryZustand

Styling and UI

Tailwind CSSshadcn/uiFullCalendarSocket.IO

Behind it

NestJSFastAPISupabasePostgreSQLRedisVercel
Next step

Bring us the screen nobody wants to touch

Show us the part of the product that breaks when you change it. The scoping call is free, and you will leave with a read on what is actually wrong.

Questions, answered
01Can they work on an older React codebase?

Yes, and most of this work is exactly that. They start by reading what exists and shipping something small, because a rewrite proposed in week one is a red flag from any vendor.

02Do they build mobile as well?

Several do, through React Native. ExtraaJe and Shift Link both pair a React Native app with a web dashboard, which is the usual shape when field staff and office staff need different things.

03How do they fit into our code review process?

They open pull requests in your repository and follow your rules for approvals, tests and merges. Your team reviews their code, which is also the fastest way for you to judge the hire in the first fortnight.

04Will they use React or a framework like Next.js?

Whichever the product needs, and the React team itself now recommends starting with a framework for new apps. A plain React and Vite build is still right for an internal dashboard behind a login, where search visibility and first-load speed matter less.

05Can they work alongside our designers?

Yes. They build from your design files and push back where a design will not survive real data, such as a table that looks fine with three rows and breaks at three thousand.

06How is a React engagement priced?

By how much product there is and how tangled the current code is, not by a rate you compare in isolation. A component library with tests prices very differently from five years of untested screens. Scoping calls are free. Where we must read an existing codebase to answer properly, a paid two-week diagnostic turns the estimate into a fixed price.

Verified
Start

Anyone can ship the agent. We answer the pager.

We build AI agents and automation, then stay on under an agreed service level. A senior engineer reads every brief, and your call gets scheduled within 24 hours.

What happens next

  1. 01

    You send a brief or book a call

    Two minutes, whichever you prefer.

  2. 02

    A senior engineer replies within 24 hours

    Not a sales rep.

  3. 03

    Honest scoping, in writing

    And if we’re not the right fit, we say so.

Abdul Basit, CEO of Hashlogics

“I started Hashlogics because too many teams ship a demo, get paid, and disappear. We build to a standard we’d run ourselves — and we stay to keep it running.”

Abdul Basit · CEO · a direct line

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