41 Best React JS Unit Testing Freelance North America Developers For Hire In April 2025

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Featured React JS Unit Testing Freelance North America Developers

1 to 20 of 41 devs ( view all 1617 devs )

Senior Front-end Engineer

Los Angeles, California, US or remote

# Professional Experience ## Lead Front-end Engineer, Imarc (2020 – 2023) Built marketing and internal websites for Breezeline, eRegulations,...

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Senior Full Stack Developer

Los Angeles, California, US or remote

🚀 Developer Experience & Achievements 🚀 🔍 Duplicate Finder - Electron & React App: - Built an application that scans directories for...

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Senior Full Stack Developer

Madison, Wisconsin, US or remote

True end-to-end developer with strong frontend, backend, and devops chops. 11+ years working with clients such as Yale University, UW, NWF, The...

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Senior Software Engineer

Indianapolis, Indiana, US or remote

I've been working in development for over a decade with a primary focus on front end technologies. I have done back end and full stack work using...

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Senior Software Engineer

Boston, Massachusetts, US or remote

I worked with an early stage crypto token startup on finishing and launching their MVP after the existing developer left the project. I joined an...

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Senior Full Stack Javascript Developer

Omaha, Nebraska, US or remote

Specialties: • Front end JavaScript (React, AngularJS, Angular.io, and WebPack) • ES2021, and TypeScript • .NET Core Development (C#) •...

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Frontend Developer | React Developer

Union, New Jersey, US or remote

Frontend Developer | Frontend Engineer👨‍💻 with 5 years of experience implementing efficient, scalable web applications with 10,000+ users for...

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Senior Software Engineer

GERLACH, Nevada, US or remote

I've worked on a lot of open source projects, mostly my own. I created BikeTag.org and am the author and maintainer of the unofficial imgur...

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Full Stack Engineer

GIlbert, Arizona, US or remote

Full Stack Engineer with expertise in incorporating cutting-edge technologies into projects and taking software or features from conception to...

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Product Engineer

Tampa, Florida, US or remote

I'm a very passionate web engineer with 10+ years of experience. I have an eye for detail, both visually and functionally, balanced with a big...

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Software Developer

New York, New York, US or remote

Software Developer - Zeplin: Architected and implemented reusable UI components using React.js, reducing development time by 25%. Conducted...

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Full Stack Developer | Web & Mobile

Brooklyn, New York, US or remote

I'm a full-stack developer with a strong foundation in creating modern, scalable web and mobile applications. With 4 years of hands-on experience,...

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Freelance Web Developer

Raleigh, North Carolina, US or remote

Hi, I'm Andrew, a Freelance Full Stack Developer, Creator, and Entrepreneur based in Raleigh, NC. I'm currently open to new opportunities and love to...

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Frontend Developer

Seattle, Washington, US or remote

Indeed Inc. - Seattle, WA 📅 Jan. 2022 – Apr. 2023 Collaborated with three engineering teams, leading test automation efforts. Achieved 100%...

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Full Stac Software Developer

Lynchburg, Virginia, US or remote

CACI International Inc. Rome, NY (Remote) FULL STACK SOFTWARE DEVELOPER Feb. 2021 ‑ Present • Secured extended contracts and funding for CACI...

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Software Engineer

Columbus, Ohio, US or remote

Express • Columbus, Ohio • 08/2021 - 08/2023 Associate ECommerce Engineer (React) - Contributed to the successful integration of the 'Save...

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Backend Developer

Montclair, US or remote

# Projects I've worked for: 1. Adamo ID - LimboTeams LLC. I've been in charge of the backend development for this project. The main objective...

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Full-Stack Engineer

Port Clinton, Ohio, US or remote

PROJECTS SpotMe, Payment Service May 2024 – present • Engineered reusable React components to adhere to modern software design principles...

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Software Engineering Intern

Chicago, Illinois, US or remote

One of my recent projects is Resumerocket.xyz, a React-based web application that leverages Next.js framework. This application enables users to...

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Frontend Developer

Greenviller, South Carolina, US or remote

Frontend Developer / Tech Leader ICDI. APP CORPORATION Part-time Jun 2022 - Present Chicago, Illinois, United States Remote Developed a...

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