2,935 companies mention Backbone.js in job posts they wrote. Another 35,896 companies show up through employees' public profiles. Its share of job posts held steady in the three months to August 2026; 1,326 job posts named it from October 2025 to August 2026. It comes up most in Software Engineer job posts.
Which companies name Backbone.js in the most job posts?
IBM leads with 489 job posts naming Backbone.js, followed by Amazon and Intuit. Of the five companies in the table, Amazon has the most employees who list it on their profiles: 396.
CompanyPostsPeopleRecent job post
IBMInformation · first seen Aug 2022489211
"IBM Consulting is a team of business, strategy and technology consultants that design, build, and run foundational systems and services that is the backbone of the world's economy."(2027 Campus Hire-Kaohsiung) Application Developer | Apply by 3/28, Oct 23, 2026
AmazonRetail Trade · first seen Jul 2022197396
"(2) experience with JavaScript frameworks including React, Angular, Vue, or Backbone;"front-end engineer iii - amz9442601, Jul 29, 2025
IntuitScientific and Technical Services · first seen Aug 2022184114
"Experience in UI frameworks like React, Backbone, Angular is desirable."senior staff engineer - business intelligence, Sep 8, 2026
SplunkScientific and Technical Services · first seen Jul 202215433
"Expert of client-side scripting and JavaScript frameworks (React and/or BackboneJS)."Senior Software Engineering Technical Leader - Security Platform, Aug 7, 2025
EPAM SystemsProfessional Services · first seen Nov 2022143248
"Experience with at least one modern JS frameworks (AngularJS, React, Ember.js, Backbone.js)"Lead Front-end Software Engineer, May 13, 2026
Backbone.js' share of job posts is about the same as three months earlier: 0.65 in every 10,000 job posts from June to August 2026, against 0.62 from March to May. From October to December 2025 it was 0.78.
Show the data
Month
Job posts naming Backbone.js
All job posts
Per 10,000
Oct 2025
119
1,413,673
0.84
Nov 2025
150
1,822,119
0.82
Dec 2025
82
1,236,103
0.66
Jan 2026
152
1,828,002
0.83
Feb 2026
128
1,856,647
0.69
Mar 2026
129
1,850,711
0.70
Apr 2026
109
1,728,886
0.63
May 2026
98
1,821,509
0.54
Jun 2026
142
1,909,496
0.74
Jul 2026
103
1,815,180
0.57
Aug 2026
114
1,835,698
0.62
How many companies named Backbone.js in a job post for the first time in recent months?
54 companies named Backbone.js in a job post for the first time from June to August 2026, against 46 from March to May. From October 2025 to August 2026, 184 companies named it in a job post for the first time.
March to May 202646
June to August 202654
October 2025 to August 2026184
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 Backbone.js?
Employees' profiles account for 92% of the companies here. 2,935 companies name Backbone.js in job posts they wrote. 1,040 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Backbone.js
2,9357.6%
Employees' profiles list Backbone.js
35,89692%
38,831 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Backbone.js?
The largest group of Backbone.js users is companies with fewer than 50 employees (38%), more than on the typical tech page. The second-largest group is companies with 50 to 999 employees, at 37%. These counts cover the 2,935 companies whose job posts name it.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
38%26%
50 to 999
37%37%
1,000 to 5,000
11%15%
Over 5,000
14%22%
Where are Backbone.js companies based?
More than half of Backbone.js companies are in the United States (50.3%). The United Kingdom is less common than usual, at 3.5% against 6.3% on the typical tech page. These shares cover the 2,935 companies whose job posts name it.
ShareTypical
United States
50.3%48%
India
16%7.5%
France
3.7%5%
United Kingdom
3.5%6.3%
Canada
3.4%3.8%
Brazil
2.3%2.3%
Companies in 69 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
1,334
50.3%
48%
India
436
16%
7.5%
France
99
3.7%
5%
United Kingdom
93
3.5%
6.3%
Canada
90
3.4%
3.8%
Brazil
60
2.3%
2.3%
Which teams work with Backbone.js?
Backbone.js job posts name engineering and development teams at 38 and 26 companies. Third is product development, at 17 companies.
TeamCompanies
Engineering
38
Development
26
Product development
17
Technology
16
Product
15
Software engineering
14
What else do Backbone.js companies use?
Backbone.js companies are 54 times as likely as similar companies to use Ember.js: 20% of them, against 0.37%. Next is ExtJS: 5.6% of these companies use it, against 0.22% of similar ones.
Share of the 1,965 Backbone.js companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Backbone.js in job posts recently?
51 companies with 50 or more employees started naming Backbone.js in job posts between April and August 2026. 8 of them have more than 5,000 employees. DFM and Ennoble First Inc. lead the new commercial companies, with 7 job posts each from April to August.
Companies that named Backbone.js 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 Backbone.js most?
Backbone.js is showing up in more Data Scientist job posts: 39 from June to August 2026, up from 23 from March to May. Software Engineer posts naming it numbered 145 from March to May 2026 and 114 from June to August.
RoleSharePosts
Software Engineer
43%569
Frontend Engineer
13%174
Data Scientist
6.3%84
Mobile Developer
1.4%18
Skilled Trades
1.4%18
Cloud Engineer
1.3%17
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Software Engineer
43%
569
145
114
Frontend Engineer
13%
174
47
35
Data Scientist
6.3%
84
23
39
Mobile Developer
1.4%
18
2
2
Skilled Trades
1.4%
18
2
3
Cloud Engineer
1.3%
17
7
2
Which project themes come up in Backbone.js job posts?
Beyond general digital transformation, the most common project theme in Backbone.js job posts is Microservices Migration (166 posts). After that comes Frontend Migration, with 153.
Project themeJob posts
Digital Transformation670
Microservices Migration166
Frontend Migration153
Data Infrastructure Migration74
"driving the strategic migration of the DXA portal from our legacy Backbone framework to our modern, Alchemy-based React framework"
Medallia, Senior Software Engineer - Frontend, Oct 24, 2026
"Some of our frontend is still on Backbone.js as we continue migrating toward React"
Marigold, Senior Software Engineer, Oct 24, 2026
About this data
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.
