36,296 companies use Cassandra, based on their job posts and their employees' public profiles. Hiring for it has slowed, though 19,450 job posts still named it from October 2025 to August 2026. Software Engineer roles mention it most.
Which companies name Cassandra in the most job posts?
JPMorganChase leads with 4,119 job posts naming Cassandra, followed by Capital One and Apple. Of the five companies in the table, JPMorganChase has the most employees who list it on their profiles: 1,723.
CompanyPostsPeopleRecent job post
JPMorganChaseFinance and Insurance · first seen Jul 20224,1191,723
"Knowledgeable in EKS, Kafka, and message parsers, Proficient with Oracle and Cassandra databases."Software Engineer III - Java with Agentic AI, Nov 7, 2026
Capital OneFinance and Insurance · first seen Jul 20223,128494
"4+ years of experience working with unstructured or semistructured data using NoSQL databases (e.g., MongoDB, Cassandra, DynamoDB)"data engineer 4 (manager, ic)-edt, Nov 6, 2026
AppleScientific and Technical Services · first seen Jul 20222,7751,058
"Build reliable, scalable, and observable cloud-native services using technologies such as Kubernetes, Kafka, OpenSearch, Solr, and Cassandra."Software Engineer - AML - Ai & Data Platforms, Oct 24, 2026
EPAM SystemsProfessional Services · first seen Aug 20221,984341
"Familiarity with No-SQL/specialized databases such as Cassandra, MongoDB, Azure Cosmos DB"Solution Architect, Oct 24, 2026
WalmartRetail Trade · first seen Jul 20221,7031,042
"Working knowledge of SQL /No-SQL and database technologies (Cassandra, Big Query, Data Bricks, Cosmos, Druid, etc)"(USA) Principal, Software Engineer, Nov 1, 2026
Job posts mentioning Cassandra went from 10 to 8.2 in every 10,000 job posts, comparing March to May with June to August 2026. August 2026 was its lowest month since October 2025, at 8.1.
Show the data
Month
Job posts naming Cassandra
All job posts
Per 10,000
Oct 2025
1,615
1,413,673
11
Nov 2025
2,232
1,822,119
12
Dec 2025
1,344
1,236,103
11
Jan 2026
2,153
1,828,002
12
Feb 2026
2,108
1,856,647
11
Mar 2026
1,936
1,850,711
10
Apr 2026
1,775
1,728,886
10
May 2026
1,755
1,821,509
9.6
Jun 2026
1,558
1,909,496
8.2
Jul 2026
1,484
1,815,180
8.2
Aug 2026
1,490
1,835,698
8.1
How many companies named Cassandra in a job post for the first time in recent months?
Cassandra showed up in job posts at 244 companies for the first time from June to August 2026, and 296 in the three months before. The 244 from June to August are 1.9% of all 13,133 companies whose job posts name it.
March to May 2026296
June to August 2026244
October 2025 to August 20261,104
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 Cassandra?
Of the 36,296 companies here, 23,163 are known from what employees list on their profiles. 4,483 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Cassandra
13,13336%
Employees' profiles list Cassandra
23,16364%
36,296 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Cassandra?
Smaller companies stand out among Cassandra users: companies with fewer than 50 employees are 34% of them, against 22% on the typical tech page. 2,888 of its companies have more than 5,000 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
34%22%
50 to 999
45%38%
1,000 to 5,000
13%17%
Over 5,000
8%23%
Where are Cassandra companies based?
The United States alone has 40% of Cassandra companies; the rest are spread across 160 other countries and territories.
ShareTypical
United States
40%43%
India
9%6.9%
United Kingdom
5.5%6.4%
France
4.7%4.6%
Germany
3.9%4.4%
Canada
3.1%3.6%
Companies in 161 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
13,535
40%
43%
India
3,067
9%
6.9%
United Kingdom
1,882
5.5%
6.4%
France
1,609
4.7%
4.6%
Germany
1,321
3.9%
4.4%
Canada
1,070
3.1%
3.6%
Which teams work with Cassandra?
Cassandra job posts name engineering and data engineering teams at 256 and 166 companies. Third is technology, at 120 companies.
TeamCompanies
Engineering
256
Data engineering
166
Technology
120
DevOps
119
Data
107
IT
99
What else do Cassandra companies use?
Apache HBase, Couchbase and Spark Streaming show up far more often at Cassandra companies than at companies of the same size. HDFS is 13 times as common as usual, at 12%.
Share of the 9,846 Cassandra companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Cassandra in job posts recently?
231 companies with 50 or more employees started naming Cassandra in job posts between April and August 2026. 29 of them have more than 5,000 employees. TD SYNNEX North America has the most job posts of the new enterprise companies, 6 from April to August.
Companies that named Cassandra 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 Cassandra most?
Software Engineer roles make up 41% of the job posts that name Cassandra. Data Engineer is second, at 12%.
RoleSharePosts
Software Engineer
41%7,999
Data Engineer
12%2,288
Site Reliability Engineer
2.7%520
Database Administrator
2.6%503
DevOps Engineer
2.3%452
Software Architect
2.1%416
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Software Engineer
41%
7,999
2,171
1,758
Data Engineer
12%
2,288
632
498
Site Reliability Engineer
2.7%
520
140
123
Database Administrator
2.6%
503
138
83
DevOps Engineer
2.3%
452
115
87
Software Architect
2.1%
416
108
104
Which project themes come up in Cassandra job posts?
6,259 job posts naming Cassandra describe Microservices Migration work, the most common theme after broad digital transformation. Data Infrastructure Migration is next, in 4,917 job posts.
Project themeJob posts
Digital Transformation15,676
Microservices Migration6,259
Data Infrastructure Migration4,917
Cloud Migration1,889
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.
