Top Rated Plus on Upwork · 7+ years experience

Hire a Freelance React Developer for SaaS Dashboards and Web Apps

I'm a senior React developer with 7+ years of experience building production interfaces: complex dashboards, real-time data views, design systems and customer-facing web apps. You get one engineer who can also build the API and infrastructure behind the UI, so nothing gets lost between frontend and backend.

What you can hire me for

SaaS dashboards and admin panels

Data-heavy interfaces with tables, charts, filters and role-based access that stay fast as your data grows.

Customer-facing web apps

Accessible, responsive React applications built with TypeScript and a component structure your team can extend.

Design systems and component libraries

Reusable, documented components so new features ship faster and look consistent.

Next.js and SEO-critical React

Server rendering, metadata and structured data for React apps that need to be found on Google.

Performance and refactoring

Profile a slow React app, remove unnecessary re-renders and untangle a codebase that has become hard to change.

Full-stack delivery

Node.js or Laravel APIs, PostgreSQL and AWS deployment behind your React frontend.

Results from past projects

Top Rated Plus

freelancer status on Upwork

70% faster

performance gain on a real estate transaction platform used by JLL and Cushman & Wakefield

99.9% uptime

on a CRM serving 2M+ users

90% faster

report generation on a financial compliance platform for KPMG

45% lower

operational costs delivered for NanoByte Technologies

Technologies I use

  • React
  • TypeScript
  • Next.js
  • Redux / Zustand
  • React Query
  • Tailwind CSS
  • Node.js
  • Laravel
  • PostgreSQL
  • AWS

Who this is for

  • Startups that need a senior React engineer without a full-time hire
  • Product teams with a React codebase that needs a strong contributor
  • Agencies that need a dependable React specialist for client work
  • Founders whose current frontend is slow, buggy or hard to change

How I work

  1. Step 1

    Intro call

    A free 30-minute call to understand the product, the codebase and the goals.

  2. Step 2

    Code review and plan

    For existing projects, a short review and a written plan before any large changes.

  3. Step 3

    Build with weekly demos

    Small, reviewable pull requests and a working demo every week.

  4. Step 4

    Handover

    Documented components and clear notes so your team can keep going.

What does a React developer do?

A React developer builds the interactive part of a web product: forms, tables, charts, navigation and everything a user clicks. Good ones also care about how fast it feels, how accessible it is, and how easy the code is to change six months later.

React, Next.js or something else?

The right choice depends on what the product needs.

  • Plain React suits an app behind a login, such as an internal dashboard, where search rankings do not matter.
  • Next.js suits products where pages must rank on Google or load quickly for new visitors.
  • A simpler stack may be better for a small content site that rarely changes.

Skills to look for in a React developer

  • Strong JavaScript and TypeScript fundamentals, not just familiarity with hooks.
  • State management judgement: knowing when to use local state, context, or a library.
  • Performance awareness: avoiding unnecessary re-renders and large bundles.
  • Accessibility and responsive design.
  • Testing habits that protect against regressions.
  • Ability to work with real APIs and handle loading and error states properly.

Signs of a weak React codebase

If you are inheriting a project, these are the common warning signs.

  • Giant components that do everything and cannot be reused.
  • State scattered across many places with no clear source of truth.
  • No types and no tests, so every change is risky.
  • Slow pages caused by needless re-rendering or huge dependencies.
  • Inconsistent styling that makes every screen look different.

How to hire a React developer without the guesswork

Look at shipped products, not just profiles. Ask what they built, what went wrong, and what they would change. Start with a small paid milestone so you both see how working together feels before you commit to a larger build.

What clients say

Feedback from 5-star projects on my Upwork profile.

“Outstanding experience working with Zagham on our SaaS platform. He understood the requirements immediately, executed the build flawlessly, and handled edge cases with great problem-solving skills. Fast turnaround, great communication, and top-tier code quality. 10/10 developer.”
★★★★★ Upwork client · Shipping Label SaaS Platform — Phase 1 MVP · May – Sep 2026
“Really happy with the updates. New features were added to our e-commerce site exactly as requested, with great communication throughout the project.”
★★★★★ Upwork client · Full Stack Developer (Node.js & React Native) for Web & AI Mobile App Integration · Jan 2026
“Love working with Zagham as always!”
★★★★★ Upwork client · Stripe Auth + Subscription Paywall for Multiple React Apps · Dec 2025
“Very responsive and quick to get things done.”
★★★★★ Upwork client · Clerk Auth and Database Design for SEO Search Results · Dec 2025
“Very responsive. Quick and efficient with his work.”
★★★★★ Upwork client · Kalshi Prediction Market Consultant · Mar 2026

Frequently asked questions

Do you work with TypeScript?

Yes. I build React projects in TypeScript by default because it makes larger codebases safer to change.

Can you join an existing React codebase?

Yes. I regularly join existing projects, review the code first, and then extend it or propose a clear plan to improve it.

React or Next.js: which should I use?

If your pages need to rank on Google or load fast for first-time visitors, Next.js is usually the better choice. For an internal tool behind a login, plain React is often enough. I will recommend one after understanding your product.

Can you also build the backend?

Yes. I build APIs in Node.js or Laravel, design the database in PostgreSQL and deploy to AWS or Vercel.

Which time zones do you work in?

I work async-first and schedule calls in overlap windows with your team, including US business hours. Tell me your time zone on the first call and we will agree on a schedule.

How do we start?

Book a free 30-minute call or email me a short brief, and I will reply with next steps.

How much does it cost to hire a freelance React developer?

Published market rates for senior React freelancers commonly range from about $70 to $150 per hour, with lower rates for junior developers. Project pricing depends on scope, and a lean SaaS MVP typically runs $15,000 to $60,000.

How long does it take to build a React dashboard?

A simple dashboard can take two to four weeks. A complex one with many charts, roles and integrations can take two to three months.

Can you improve the performance of my existing React app?

Yes. I start by measuring where the time goes, then fix the largest causes first, such as unnecessary re-renders, oversized bundles and slow data loading.

Do you build design systems?

Yes. I build reusable, documented components so new features ship faster and stay consistent.

Do you work with React Native as well?

Yes, I have React Native experience. Tell me about your mobile needs on the intro call and I will say honestly whether I am the right fit.

Tell me about your project

Book a free call or send a short brief. I reply within one business day.