102 Best React JS Sencha Ext JSON MySQL SQL Freelance Developers For Hire In April 2025

Hire Devs From

United Healthcare Ericsson Microsoft Meta Bloomberg Apple Akamai Ebay

selected:

React JS [ x ] Sencha Ext JS [ x ] JSON [ x ] MySQL [ x ] SQL [ x ] freelance [ x ]

framework:

+ Next JS (101) + Node JS (101) + Express JS (86) + jQuery (64) + Vue JS (44) + Angular JS (42) + React Native (22) + D3 JS (20)

language:

+ TypeScript (94) + JavaScript (82) + Vanilla JS (81) + Python (55) + PHP (38) + Java (31) + C# (20) + .NET (13)

utility:

+ GraphQL JS (27) + Redux JS (26) + Three JS (26) + Jest JS (24) + Jenkins (14)

ui:

+ CSS (71) + EJS (37) + Tailwind CSS (33) + bootstrap (24) + Lit JS (16) + SASS (15) + SCSS (14) + Material UI (12) + Storybook JS (6)

career:

+ Senior (51) + Junior (49) + Mid Level (45) + Manager (14) + CTO (10)

stack:

+ Full Stack (94) + Front End (90) + Back End (76)

db:

+ MongoDB (84) + Postgres (PostgreSQL) (54) + Redis (16) + Firebase (14) + SQLite (11) + Microsoft SQL (8) + NoSQL (7) + DynamoDB (6) + Firestore (5)

server:

+ AWS (54) + docker (46) + Linux (22) + Google Cloud (20) + Amazon SES (17)

program:

+ Git (85) + Jira (31) + GitHub (25) + Figma (14) + Prisma (14) + Elastic (10) + Postman (7) + Confluence (5) + VS Code (5)

concept:

+ HTML (60) + Rest API (38) + api (37) + software (37) + mobile app (30)

speaking:

+ Spanish (13) + Hindi (8) + French (6) + Portuguese (6)

worker type:

+ contractor (89) + full time (89)

us state:

+ California (8) + Florida (5) + New York (5)

country:

+ United States (45) + Canada (9) + India (6) + Brazil (5)

country region:

+ North America (56) + Asia (10) + Eastern Europe (10) + Europe (10) + South Asia (8) + South America (7) + Western Europe (6)

Filters:

selected:

React JS [ x ] Sencha Ext JS [ x ] JSON [ x ] MySQL [ x ] SQL [ x ] freelance [ x ]

framework:

+ Next JS (101) + Node JS (101) + Express JS (86) + jQuery (64) + Vue JS (44) + Angular JS (42) + React Native (22) + D3 JS (20)

language:

+ TypeScript (94) + JavaScript (82) + Vanilla JS (81) + Python (55) + PHP (38) + Java (31) + C# (20) + .NET (13)

utility:

+ GraphQL JS (27) + Redux JS (26) + Three JS (26) + Jest JS (24) + Jenkins (14)

ui:

+ CSS (71) + EJS (37) + Tailwind CSS (33) + bootstrap (24) + Lit JS (16) + SASS (15) + SCSS (14) + Material UI (12) + Storybook JS (6)

career:

+ Senior (51) + Junior (49) + Mid Level (45) + Manager (14) + CTO (10)

stack:

+ Full Stack (94) + Front End (90) + Back End (76)

db:

+ MongoDB (84) + Postgres (PostgreSQL) (54) + Redis (16) + Firebase (14) + SQLite (11) + Microsoft SQL (8) + NoSQL (7) + DynamoDB (6) + Firestore (5)

server:

+ AWS (54) + docker (46) + Linux (22) + Google Cloud (20) + Amazon SES (17)

program:

+ Git (85) + Jira (31) + GitHub (25) + Figma (14) + Prisma (14) + Elastic (10) + Postman (7) + Confluence (5) + VS Code (5)

concept:

+ HTML (60) + Rest API (38) + api (37) + software (37) + mobile app (30)

speaking:

+ Spanish (13) + Hindi (8) + French (6) + Portuguese (6)

worker type:

+ contractor (89) + full time (89)

us state:

+ California (8) + Florida (5) + New York (5)

country:

+ United States (45) + Canada (9) + India (6) + Brazil (5)

country region:

+ North America (56) + Asia (10) + Eastern Europe (10) + Europe (10) + South Asia (8) + South America (7) + Western Europe (6)

Timezone:

(includes +1/-1 hour)

Featured React JS Sencha Ext JSON MySQL SQL Freelance Developers

21 to 40 of 102 devs ( view all 1625 devs )

Full-Stack & Blockchain developer

Toronto, Ontario, Canada or remote

Full-Stack & Blockchain Developer Frontier Communications 2020 - Present Dallas, Texas Company Description Developed Frontend Application using...

React JS Sencha Ext JS JSON MySQL SQL freelance react node nextjs json

Full-Stack Developer

Montevideo, Montevideo, Uruguay or remote

Uruguay-based Full-stack Web Developer and old-school JavaScript coder with 10+ years of experience. Able to work in multiple programming languages...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript vue

Senior Full-Stack & Blockchain developer

Singapore, 50 Nanyang Ave, Singapore or remote

Hello every one! I am a senior Full Stack && Blockchain Developer. I enjoy working with clients to help discover what they need and create the best...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular

Freelance Frontend Dev

Vienna, Vienna, Austria or remote

Jack of all trades, master of some 🧠 +15 years experience at DESTROYING problems I aim to cut the bullshit and solve issues effectively...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript vue

Web Developer

Nipomo, California, US or remote

Projects: - New5hark: A fullstack app backed by MongoDB and a frontend powered by React. In this app a user can create an account, and create a day...

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Senior Full Stack Developer

San Clemente, California, US or remote

Software Engineer at Camping World September 13th 2021 Remote Duties: • Developed a new API service endpoint responsible for the secure...

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Full Stack Developer

Chicago, Illinois, US or remote

Technical Advisor Tempo Storm ▪ Collaborated with the web development team to create and launch The Bazaar website. ▪ Assessed existing...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular

Software Engineer

Washington, District of Columbia, US or remote

WORK EXPERIENCE Applied Materials | Lead Software Engineer ▪ Independently developed a D3-Charts library using TypeScript and React functional...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular

Full Stack Developer

Bartlett, Illinois, US or remote

William Rainey Harper College November 2021 - July 2023 Student Systems Analyst Palatine, IL ● Leveraged programming, scripting, query, and...

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Full Stack Developer

Syracuse, New York, US or remote

Hi , I'm Harvinder , a full stack developer who loves to make apps for the web and mobile platforms with popular javascript frameworks , i have a...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript vanilla js

Full Stack Developer

Maringá, Paraná, Brazil or remote

I’ve been working with WEB development since 1999, and through this period I’ve delivered a multitude of jobs using the most diverse...

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Senior Frontend Engineer - ReactJS/VueJS

Zamboanga, Zamboanga del Sur, Philippines or remote

Senior Frontend Engineer, TitanFX (via X-Team) Tech Stack: React 19, NextJS 15, TailwindCSS, Radix UI, Tanstack Table, React Hook Form, zustand,...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript vue

frontend developer

Chicago, Illinois, US or remote

Self-employed / Frontend developer 12/2020 - PRESENT, Boston, MA (Remote) ● Successfully created dynamic component structures for implementing...

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Senior Software Engineer

Susteren, Limberg, The Netherlands or remote

Solutions-oriented full-stack software engineer with 8+ years of experience and highly proficient in multiple programming languages. Primary focus on...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular

Software Developer

Durham, North Carolina, US or remote

In my role as a software developer, I've developed and architected scalable systems from scratch, including creating robust development environments...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript vue

Software Developer

New York, New York, US or remote

Software engineer with over a decade of full-stack experience at a number of companies of diverse size, tech stack, culture, and team structure, with...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular

Senior Team Lead

Sofia, Sofia, Bulgaria or remote

- Currently serving as Engineering Team Lead at Deel, overseeing engineering tasks in a fully remote setting. - Worked as a Senior Software Engineer...

React JS Sencha Ext JS JSON MySQL SQL freelance react node typescript angular