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React development services

React development services

Outsource React to a senior nearshore team, SPAs, design systems, and inherited codebases, handled in your time zone.

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Applebees
KPMG
Mastercard
Microsoft
NetJets
Toyota
  • 15+
    years delivering software
  • 100+
    senior engineers across LATAM
  • 6-8h
    daily overlap with US teams
  • 6+
    Fortune 500 & global brands trust us
WHO WE ARE

Senior React engineers, not React-adjacent generalists

React is easy to be adequate at and hard to be good at, and the difference shows up two years later in render performance, in state that lives in four places, and in a component library everyone is afraid to touch. FusionHit is where US teams outsource React to senior nearshore engineers who join your repository and your review process, in your time zone.

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WHAT WE DO

React services we provide

The React work US product teams hand us, whether the application exists yet or has existed for too long.

Custom React application development

Applications in React and TypeScript, architected against what the product has to become rather than what is quickest to start.

Front-end for existing systems

React interfaces over the APIs you already run, including the ones never designed to be consumed by a browser.

Component libraries and design systems

A shared library with documentation and tests, so the twelfth screen looks like the first and nobody rebuilds a date picker.

Migration to React

Moves off Create React App, AngularJS, jQuery, Backbone, or server-rendered templates in stages, with the current version serving users until the last screen moves.

Inherited codebase assessment and rescue

We read it before we quote it: what the state management actually is, how much is typed, which dependencies are dangerously behind, and where the render cost is. You get the findings whether or not you hire us.

Performance, accessibility, and upkeep

Render and interaction-latency work plus WCAG 2.2 AA remediation, and version upgrades handled continuously instead of accumulating into a project.

Why FusionHit

Why US companies outsource React to us

Senior React engineers

Vetted seniors fluent in modern React, TypeScript, and current tooling, and approved by you before they start.

Real-time collaboration

Nearshore engineers on US hours, working live in your repo, your tools, and your standups.

Flexible engagement

Scale your React team up or down as your roadmap and priorities move.

Integrated partnership

We work as an extension of your engineering and product teams, not a hands-off vendor.

CASE STUDIES

React work in production right now

Explore All

Your front end can move numbers like these. Talk to an expert. 30 minutes, no commitment.

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Engagement models

Three ways to add React engineers

Pick the model that fits how your team works today.

Staff Augmentation

Senior React engineers added to your existing team, under your direction, in days rather than months.

Dedicated Development Teams

A front-end team working only on your product, sprint after sprint, while you set the roadmap.

Full Project Outsourcing

You hand over the scope and we deliver it under our management, covering architecture, build, QA and release.

Next.js development services
Process

How a React engagement starts

01

Discovery call

The product, the state of the codebase, and what is slowing you down (30 minutes).

02

Team proposal

Matched React engineer profiles in days, not weeks.

03

Interviews

You meet and approve every engineer.

04

Sprint delivery

Your repository, your review process, working software every sprint.

Client Voices

What US teams say about working with us

Real clients, on camera, on what it's actually like to work with us.

FusionHit's culture really is to ingrain with your company and understand your business drivers. If you're looking for an extension to your team, FusionHit is an absolute must-talk-to company.

Glass House Guide and APG Emerging Tech

Justin Cullifer

Founder

The team has been able to stay as a team for two years now. A single team, with nobody leaving. I've had a really stable team that I've seen grow in strength.

CSE Insurance Group

Mark Chequer

CIO

FAQ

FAQs about our React development services

01

Why outsource React development instead of hiring in-house?
A senior US React hire runs well over $190k fully loaded and takes 3-6 months from job post to first commit, while the roadmap waits. Outsourcing fills the seat in days at 30-50% below domestic rates. If you would rather bring talent onto your own payroll, see hire React developers.
02

How much do React developers cost?
Senior nearshore rates run 30-50% below equivalent US salaries. What you pay depends on seniority, how many engineers, and the engagement model. You get a line-item estimate on the first call, with no recruiting fees and no hidden overhead.
03

Can you take over a React application someone else built?
Yes, and it is one of the most common ways our engagements start. We read the codebase first and give you an honest assessment: what the state management actually is, how much is typed, which dependencies are dangerously behind, and where the render cost is. You get that assessment whether or not you hire us, and then we fix in order of what it is costing you rather than proposing a rewrite.
04

How would you migrate us off Create React App?
To Vite if the app stays client-side, and to Next.js if pages need to be found and indexed. CRA is deprecated, which is why dependency upgrades and security scans keep breaking. We rebuild the build, routing, and test layers in stages rather than all at once.
05

Do you work in TypeScript?
By default, and we would push back on starting a new application without it. For existing untyped codebases we introduce types incrementally at the boundaries where bugs actually originate, rather than converting everything at once.
06

What about state management?
Whatever the application actually needs, which is usually less than teams expect. Server state belongs in TanStack Query rather than in a global store, and a lot of what gets put in Redux is server state. For genuine client state, Redux Toolkit or Zustand depending on the size of the team.
07

Can your engineers work with our designers?
Yes, and it is the normal setup. Our engineers work from your Figma, flag what will be expensive to build before it is designed rather than after, and hand back components that match the design system.
08

Are your engineers experienced with React 19 and the React Compiler, or only on older React?
Both, deliberately. React 19 and the Compiler on new work, and class components, older React versions, and legacy tooling on the codebases that migration buyers actually have.

Ready to put senior React engineers on it?

Tell us what you are building or what you inherited, and we will show you the engineers who can take it forward.

Trusted by leading teams

  • Mastercard
  • NetJets
  • KPMG
  • Applebees

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