1,949 companies name ExtJS in their own job posts. Its share of job posts is shrinking, though 900 job posts still named it from October 2025 to August 2026. Software Engineer is the role that names it most often.
The companies with the most job posts naming ExtJS are Genpact (166), American Airlines (164) and JPMorganChase (136). Blue Yonder is the newest of the five companies in the table, with its first job post naming it in June 2023.
CompanyPostsPeopleRecent job post
GenpactProfessional Services · first seen Aug 202216615
"SRE Certified, Java, JavaScript (with ExtJS)."Lead Consultant - Site Reliability Engineers/L2, Sep 9, 2025
American AirlinesTransportation and Warehousing · first seen Aug 202216412
"Front-end: Angular, JS, Ext JS, CSS, jQuery, AJAX"Developer/Sr Developer, IT Applications, Oct 21, 2026
JPMorganChaseFinance and Insurance · first seen Aug 2022136361
"Proficiency in any of the front end technology like React/ReactJS, Redux, Angular/AngularJS, ExtJS, JQuery, NodeJS"Lead Software Engineer - Full Stack Engineer, Aug 26, 2026
Blue YonderScientific and Technical Services · first seen Jun 202311866
"Software: Core Java, PLSQL and Extjs What you’ll do"IN-Sr Technical Consultant - Consulting, Nov 7, 2026
Wells FargoFinance and Insurance · first seen Aug 2022117135
"JavaScript Frameworks experience (jQuery, Ext JS, Kendo UI, Knockout JS or Angular JS);"Lead Software Engineer (#001691), Aug 7, 2026
A smaller share of job posts mentioned ExtJS from June to August 2026 than from March to May: 0.40 in every 10,000 job posts, down from 0.51. August 2026 was its lowest month since October 2025, at 0.28.
Show the data
Month
Job posts naming ExtJS
All job posts
Per 10,000
Oct 2025
63
1,413,673
0.45
Nov 2025
95
1,822,119
0.52
Dec 2025
55
1,236,103
0.44
Jan 2026
109
1,828,002
0.60
Feb 2026
82
1,856,647
0.44
Mar 2026
103
1,850,711
0.56
Apr 2026
94
1,728,886
0.54
May 2026
78
1,821,509
0.43
Jun 2026
101
1,909,496
0.53
Jul 2026
68
1,815,180
0.37
Aug 2026
52
1,835,698
0.28
How many companies named ExtJS in a job post for the first time in recent months?
ExtJS showed up in job posts at 24 companies for the first time from June to August 2026, and 21 in the three months before. The 24 from June to August are 1.2% of all 1,949 companies whose job posts name it.
March to May 202621
June to August 202624
October 2025 to August 2026118
Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.
How do we know which companies use ExtJS?
Of the 20,764 companies here, 18,815 are known from what employees list on their profiles. 704 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name ExtJS
1,9499.4%
Employees' profiles list ExtJS
18,81591%
20,764 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use ExtJS?
Smaller companies stand out among ExtJS users: companies with fewer than 50 employees are 37% of them, against 26% on the typical tech page. 301 of its companies have more than 5,000 employees. These counts cover the 1,949 companies whose job posts name it.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
37%26%
50 to 999
37%37%
1,000 to 5,000
11%15%
Over 5,000
15%22%
Where are ExtJS companies based?
ExtJS is concentrated in the United States, home to 50.1% of the companies that use it. The United Kingdom is less common than usual, at 3.2% against 6.3% on the typical tech page. These shares cover the 1,949 companies whose job posts name it.
ShareTypical
United States
50.1%48%
India
10%7.5%
Germany
5.9%4.4%
France
4.7%5%
United Kingdom
3.2%6.3%
Canada
2.5%3.8%
Companies in 65 countries and territories. Shares are of companies with a known headquarters country. Counts companies whose job posts name it.
Show the data
Country
Companies
Share
Typical tech page
United States
878
50.1%
48%
India
184
10%
7.5%
Germany
104
5.9%
4.4%
France
82
4.7%
5%
United Kingdom
56
3.2%
6.3%
Canada
44
2.5%
3.8%
Which teams work with ExtJS?
ExtJS turns up most in job posts for IT, engineering and development teams. Software engineering and software development teams follow.
TeamCompanies
IT
22
Engineering
21
Development
20
Software engineering
10
Software development
8
Product development
7
What else do ExtJS companies use?
9.7% of ExtJS companies also use Backbone.js, against 0.38% of similar companies. Apache Struts comes second, 24 times as common as usual, at 14%.
Share of the 1,140 ExtJS companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming ExtJS in job posts recently?
22 companies with 50 or more employees picked up ExtJS in their job posts from April to August 2026. FE fundinfo has the most job posts of the new mid-market companies, 3 from April to August.
Companies that named ExtJS in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.
Which roles mention ExtJS most?
Most job posts naming ExtJS are for one kind of role. Software Engineer accounts for 69%. Software Engineer posts naming it numbered 168 from March to May 2026 and 144 from June to August.
RoleSharePosts
Software Engineer
69%619
Frontend Engineer
3.9%35
Consultant
2.4%22
Software Architect
2.3%21
Software Development Engineer in Test
2%18
Automation Engineer
1.8%16
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Software Engineer
69%
619
168
144
Frontend Engineer
3.9%
35
6
14
Consultant
2.4%
22
13
3
Software Architect
2.3%
21
8
4
Software Development Engineer in Test
2%
18
8
5
Automation Engineer
1.8%
16
8
7
Which project themes come up in ExtJS job posts?
Digital transformation is the broadest theme in ExtJS job posts (581); the most common specific one is Frontend Migration, at 135. Microservices Migration is next, in 135 job posts.
Project themeJob posts
Digital Transformation581
Frontend Migration135
Microservices Migration135
Data Infrastructure Migration75
"updating applications from a mix of HTML, MVC Web, ExtJs, and ExtReact to Telerik's KendoReact framework"
CACI International Inc, Software Developer, Oct 23, 2026
"Convert initial legacy ExtJS views into clean AngularJS components"
SailPoint, Senior UI Engineer, Oct 15, 2026
"Du migrierst eine produktive Plattform, ohne dass der Betrieb stillsteht – Daten (Oracle → PostgreSQL), Backend (ColdFusion → NestJS), Frontend (ExtJS → React)"
Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.
Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.
Sumble has a free plan, and the same data is available through its API and MCP server.
A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.
Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.
