We found 28,386 companies that use JSF. 4,052 of them name it in their own job posts, and the rest through employees' public profiles. Its share of job posts is shrinking, though 2,140 job posts still named it from October 2025 to August 2026. Software Engineer roles mention it most.
Leidos, Capgemini and Tata Consultancy Services mention JSF in the most job posts. Of the five companies in the table, Tata Consultancy Services has the most employees who list it on their profiles: 716.
CompanyPostsPeopleRecent job post
LeidosProfessional Services · first seen Aug 202221020
"2+ years of experience in one of the following: JAVA, JSF, JavaScript, Spring, Automated test tools such as Selenium."Full Stack Developer, Nov 1, 2026
CapgeminiProfessional Services · first seen Aug 2022209643
"Experience with Salesforce.com’s Sales Cloud and CRM/Sales business processes Skilled with web programming including JSF, JSP, HTML, CSS, and Javascript"Application Developer - Salesforce, Nov 7, 2026
Tata Consultancy ServicesProfessional Services · first seen Jul 2023191716
"Proficiency with Java, JSF, Angular and JavaScript."Java Technical Architect Unemployment Insurance Experience, Sep 7, 2026
GlobantProfessional Services · first seen Dec 2022172240
"Experience with other things not listed above would be valuable, like: Data modeling, Docker, Kubernetes, JSF, Messaging [Kafka, RabbitMQ, PubSub."java developer - senior-level - brazil, Nov 1, 2026
LuxoftProfessional Services · first seen Jun 202315462
"Experience with JSF / JSP applications and legacy UI technologies."Full Stack Java Web Developer, Sep 12, 2026
Job posts mentioning JSF went from 1.0 to 0.93 in every 10,000 job posts, comparing March to May with June to August 2026. From October to December 2025 it was 1.2.
Show the data
Month
Job posts naming JSF
All job posts
Per 10,000
Oct 2025
158
1,413,673
1.1
Nov 2025
242
1,822,119
1.3
Dec 2025
143
1,236,103
1.2
Jan 2026
249
1,828,002
1.4
Feb 2026
269
1,856,647
1.4
Mar 2026
234
1,850,711
1.3
Apr 2026
184
1,728,886
1.1
May 2026
143
1,821,509
0.79
Jun 2026
181
1,909,496
0.95
Jul 2026
158
1,815,180
0.87
Aug 2026
179
1,835,698
0.98
How many companies named JSF in a job post for the first time in recent months?
In the three months to August 2026, 67 companies posted about JSF for the first time. From March to May, 56 did. Over the 11 months from October 2025, 264 companies posted their first job naming it.
March to May 202656
June to August 202667
October 2025 to August 2026264
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 JSF?
86% of the companies here are known from employees' profiles alone, and 14% name JSF in their own job posts. 1,442 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name JSF
4,05214%
Employees' profiles list JSF
24,33486%
28,386 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use JSF?
Smaller companies stand out among JSF users: companies with fewer than 50 employees are 29% of them, against 22% on the typical tech page. 2,592 of its companies have more than 5,000 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
29%22%
50 to 999
46%38%
1,000 to 5,000
15%17%
Over 5,000
9.1%23%
Where are JSF companies based?
The United States has the most JSF companies (25%), but Brazil stands out: 12% of them, against 2.8% on the typical tech page. Its companies are based in 169 countries and territories.
ShareTypical
United States
25%43%
Brazil
12%2.8%
France
5.1%4.6%
Germany
5%4.4%
United Kingdom
4.4%6.4%
India
4.1%6.9%
Companies in 169 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
6,680
25%
43%
Brazil
3,284
12%
2.8%
France
1,374
5.1%
4.6%
Germany
1,349
5%
4.4%
United Kingdom
1,191
4.4%
6.4%
India
1,116
4.1%
6.9%
Which teams work with JSF?
At 37 companies, the team named in JSF job posts is IT, at least twice the next. Technology and development teams come next, at 15 and 14 companies.
TeamCompanies
IT
37
Technology
15
Development
14
Software development
12
Software engineering
12
Engineering
11
What else do JSF companies use?
12% of JSF companies also use Apache Wicket, against 0.1% of similar companies. Next is JPA2: 10% of these companies use it, against 0.1% of similar ones.
Share of the 2,593 JSF companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming JSF in job posts recently?
Between April and August 2026, 63 companies with 50 or more employees first named JSF in a job post, 11 of them with more than 5,000 employees. Stantec leads the new enterprise companies, with 10 job posts from April to August.
Companies that named JSF 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 JSF most?
Software Engineer roles make up 71% of the job posts that name JSF. Software Engineer posts naming it numbered 382 from March to May 2026 and 310 from June to August.
RoleSharePosts
Software Engineer
71%1,515
Software Architect
4.9%105
Business Systems
2.5%53
Frontend Engineer
1.2%25
IT Support
1.2%25
Analyst
1.1%24
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Software Engineer
71%
1,515
382
310
Software Architect
4.9%
105
36
28
Business Systems
2.5%
53
13
7
Frontend Engineer
1.2%
25
5
6
IT Support
1.2%
25
6
8
Analyst
1.1%
24
5
10
Which project themes come up in JSF job posts?
Setting aside broad digital transformation, Microservices Migration is the theme teams hiring for JSF mention most, in 313 job posts. Broad digital transformation work shows up in 1,236 of its job posts.
Project themeJob posts
Digital Transformation1,236
Microservices Migration313
Data Infrastructure Migration166
Frontend Migration117
"Replace legacy Oracle ADF/JSF screens with React and TypeScript screens built on Holocron, Tangos shared design system"
Ciklum India, Senior Full Stack Engineer, Nov 7, 2026
"Establish incremental migration patterns from Java EE, Wildfly, and JSF to Spring Boot and Angular"
Visionet Systems Inc., Principal Architect - Solution, Oct 27, 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.
