22 Best Mid Level Senior Front End Sencha Ext JS Jest English Contractor Developers For Hire In August 2025

Hire Devs From

Ibm Ebay Smartbear

framework: language: utility: ui: career: stack: db: server: program: concept: worker type: country: country region:

Featured Mid Level Senior Front End Sencha Ext JS Jest English Contractor Developers

1 to 20 of 22 devs ( view all 1671 devs )

Frontend Software Engineer

Flagstaff, Arizona, US or remote

Software Engineer at Faithlife May 2017 - Sep 2022 • Built and maintained Faithlife TV, a video stream service for the web, iOS, Android, Apple...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript nextjs

Software Engineer

Highlands Ranch, Colorado, US or remote

Work Experience GUIDEcx — Software Engineer Feb 2022 - PRESENT - Responsible for building, testing, implementing and maintaining React...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vue

Front End Engineer

Frisco, Texas, US or remote

Skilled Front End Engineer with over 5 years of experience developing dynamic, user-centric applications. Expert in JavaScript, TypeScript, React.js,...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vanilla js

Senior Frontend Software Engineer

Bronx, New York, US or remote

JOCKMKT | Senior Frontend Engineer | Remote | Nov 2022 - Oct 2023 - Developed and Maintained JockMKT’s React Native and NextJS web applications -...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript jquery

Full Stack Developer

Zebulon, North Carolina, US or remote

Experience 1upHealth, Inc. Software Engineer August 2022 - August 2023 (1 year 1 month) Boston, Massachusetts, United States (Remote) •...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vue

Frontend Web Developer

Portland, Oregon, US or remote

Lute (Open Source Contributor) - Rewriting UI of Python/Flask desktop app using React with Vite - Writing unit tests using Jest - Implementing UI...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript angular

Frontend Developer / React / JavaScript / CSS

Basalt, Colorado, US or remote

• Led the design and development of enterprise level API documentation built in React using NextJS for OpsRamp, a company valued at $500M and...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vanilla js

Senior React Native / Full Stack Developer

Cambridge, Cambridgeshire, United Kingdom or remote

Pseudoface (Aelusive) https://www.pseudoface.com - Fine tuned open source ML model with custom data to enhance output. - Set up Docker...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript nextjs

Senior Frontend Developer

Vancouver, BC, Canada or remote

As a frontend developer I've worked on teams at small startups, medium sized profitable b2b companies, and one large enterprise. In my last role, I...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript angular

Front End Developer

Ottawa, Ontario, Canada or remote

In my career as a Front End Developer spanning multiple dynamic companies, I've had the privilege of driving pivotal advancements and addressing...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react typescript jquery nextjs

Web Developer

Boston, Massachusetts, US or remote

I worked as a consultant for 3 years where I collaborated with designers and other developers to deliver web pages for large and small companies. I...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react typescript angular vue

Full Stack Engineer | Scalable Systems

Mumbai, India or remote

I have been programming since I was 14, and have worked across various stacks and projects. Have worked at only small/early stage startups where...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript angular

Front-end Developer | Open Source Contributor | Project Management

Singapore, Singapore or remote

Growth-oriented Web Developer with 3+ years of experience working in JavaScript, React, and Next.js using Scrum / Agile methodology that drives...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react typescript vanilla js nextjs

Fullstack Software Engineer

Recife, Pernambuco, Brazil or remote

GreenFutureProject - Fullstack Software Engineer (Milan, Italy: May.2023 ‑ Current) • Worked on the global engineering team on the Green Future...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript angular

Senior JavaScript Engineer | React, Next.js & Node.js Specialist

Bengaluru, karnataka, India or remote

Professional Experience Lead Full Stack Developer Company name- Campion Solutions, Bangalore,India. Jan 2022 – Present Architected...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript angular

Fullstack Developer

Goiania, GO, Brazil or remote

I'm a software developer with over 7 years of experience in the development of mobile and web...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vanilla js

Software Engineer

Berlin, Germany or remote

I've worked for scale ups and startups as a software engineer, in the logistics, ecommerce, and publishing/research...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript nextjs

Senior JavaScript Developer

Cracow, Poland or remote

11/2022 - 11/2023 Senior JavaScript Developer Kinsta • Collaborating within a 10-member Analytics Team. • Creating domain-specific charts...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vanilla js

Software Engineer

Banja Luka, Bosnia and Herzegovina or remote

Senior Front End Developer Roko Labs July 2023–Present ● Contributed to the development of crucial features for a real estate software, with a...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript vanilla js

Senior Software Engineer

Woodside, New York, US or remote

nTop -- Led the deployment of licensing, engagement and data initiatives on front‑end, fast tracked requirements, feature development and...

Mid Level Senior Front End Sencha Ext JS Jest JS English contractor react node typescript jquery

Who We Are

Adam

Hi! I'm Adam, the person behind JS Chimp.

I make web apps and software (especially with PHP/Laravel).

I've been on both sides of the hiring equation.

Sent on interviews that didn't match my skillset. And recieved candidates unrelated to what I hired for.

Let's fix that.

Here companies and developers can connect around Javascript, JS Frameworks ... and other tech.

If you've got questions, hit me up!

What is JS Chimp

Need a job or looking to hire?

JS Chimp is your spot.

We make finding jobs or talent easy.

Let's connect you with your next job or star developer.

Join us!

1,671 JS Contractors By Tech

JS Frameworks & Libraries
JS/TS Languages
Tech Stacks
JS Utilities
JS UI/UX
JS Databases & Servers
Career Level