# Companies using Cassandra

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.

Data as of November 9, 2026. Source: Sumble.

## 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.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [JPMorganChase](https://sumble.com/orgs/jpmorgan-chase) | 4,119 | 1,723 | "Knowledgeable in EKS, Kafka, and message parsers, Proficient with Oracle and Cassandra databases." (Software Engineer III - Java with Agentic AI, Nov 7, 2026) |
| [Capital One](https://sumble.com/orgs/capital-one) | 3,128 | 494 | "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) |
| [Apple](https://sumble.com/orgs/apple) | 2,775 | 1,058 | "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 Systems](https://sumble.com/orgs/epam-systems) | 1,984 | 341 | "Familiarity with No-SQL/specialized databases such as Cassandra, MongoDB, Azure Cosmos DB" (Solution Architect, Oct 24, 2026) |
| [Walmart](https://sumble.com/orgs/walmart) | 1,703 | 1,042 | "Working knowledge of SQL /No-SQL and database technologies (Cassandra, Big Query, Data Bricks, Cosmos, Druid, etc)" ((USA) Principal, Software Engineer, Nov 1, 2026) |

## Is hiring for Cassandra growing?

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.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| 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.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 296 |
| June to August 2026 | 244 |
| October 2025 to August 2026 | 1,104 |

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 know | Companies | Share |
|---|---:|---:|
| Job posts name Cassandra | 13,133 | 36% |
| Employees' profiles list Cassandra | 23,163 | 64% |

## 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.

| Size | Share | Typical tech page |
|---|---:|---:|
| 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.

| 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.

| Team | Companies |
|---|---:|
| Engineering | 256 |
| Data engineering | 166 |
| Technology | 120 |
| DevOps | 119 |
| Data | 107 |
| IT | 99 |

## Which roles mention Cassandra most?

Software Engineer roles make up 41% of the job posts that name Cassandra. Data Engineer is second, at 12%.

| 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 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.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [SpaceXAI](https://sumble.com/orgs/xai) | 1 |
| AI native | [Perplexity](https://sumble.com/orgs/perplexity-ai) | 1 |
| AI native | [AiFA Labs](https://sumble.com/orgs/aifa-labs-official) | 1 |
| AI native | [Vispera](https://sumble.com/orgs/vispera-information-technologies) | 1 |
| AI native | [Neo](https://sumble.com/orgs/momentumforwork1) | 1 |
| Commercial | [Styli](https://sumble.com/orgs/styli) | 4 |
| Commercial | [Salesloft](https://sumble.com/orgs/salesloft) | 3 |
| Commercial | [Accommodations Plus International](https://sumble.com/orgs/accommodations-plus-international) | 3 |
| Commercial | [KRONE GROUP](https://sumble.com/orgs/bernard-krone-holding-se-&-co-kg) | 3 |
| Commercial | [TQI](https://sumble.com/orgs/tqi-it) | 3 |
| Mid-market | [Alkami Technology](https://sumble.com/orgs/alkami-technology) | 6 |
| Mid-market | [MBC GROUP](https://sumble.com/orgs/mbc-group-1) | 3 |
| Mid-market | [Crisis24](https://sumble.com/orgs/crisis24) | 3 |
| Mid-market | [ING Italia](https://sumble.com/orgs/ing-italia) | 3 |
| Mid-market | [Rocket](https://sumble.com/orgs/linktree-rocket-official) | 2 |
| Enterprise | [TD SYNNEX North America](https://sumble.com/orgs/tdsynnexnorthamerica) | 6 |
| Enterprise | [Banque Misr](https://sumble.com/orgs/banque-misr-transformation-office) | 4 |
| Enterprise | [CarMax](https://sumble.com/orgs/carmax) | 3 |
| Enterprise | [Banco Bci](https://sumble.com/orgs/bci-banco) | 3 |
| Enterprise | [TD SYNNEX](https://sumble.com/orgs/td-synnex) | 2 |

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.

## 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%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Apache HBase | 1,417 | 14% | 0.91% | 16 times |
| Couchbase | 682 | 6.9% | 0.46% | 15 times |
| Spark Streaming | 1,061 | 11% | 0.84% | 13 times |
| HDFS | 1,175 | 12% | 0.94% | 13 times |
| Enzyme | 592 | 6% | 0.5% | 12 times |
| MapReduce | 617 | 6.3% | 0.52% | 12 times |
| Apache Storm | 649 | 6.6% | 0.55% | 12 times |
| GCP Dataproc | 643 | 6.5% | 0.55% | 12 times |

Shares are out of the 9,846 companies whose job posts name Cassandra, not counting firms whose job posts name almost every technology.

## 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 theme | Job posts |
|---|---:|
| Digital Transformation | 15,676 |
| Microservices Migration | 6,259 |
| Data Infrastructure Migration | 4,917 |
| Cloud Migration | 1,889 |

## 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.