# Companies using Pulsar

3,305 companies use Pulsar, based on their job posts and their employees' public profiles. Hiring for it is steady, with 2,238 job posts naming it from October 2025 to August 2026. It comes up most in Software Engineer job posts.

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

## Which companies name Pulsar in the most job posts?

Toast, Klaviyo and Accenture in India mention Pulsar in the most job posts. Of the five companies in the table, Toast has the most employees who list it on their profiles: 28.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Toast](https://sumble.com/orgs/toast,-inc) | 328 | 28 | "In this role, you'll gain hands-on experience with event-driven systems built on Kotlin, gRPC, Apache Pulsar, and DynamoDB." (Software Engineer II, Earnings, Nov 8, 2026) |
| [Klaviyo](https://sumble.com/orgs/klaviyo) | 214 | 5 | "Leverage technology such as Python, Golang, AWS, and Kubernetes to advance Klaviyo's platform, with a deep focus on Apache Pulsar, SQS, and Kafka." (Senior Software Engineer, Asynchronous Processing, Aug 25, 2026) |
| [Accenture in India](https://sumble.com/orgs/accentureindia) | 185 | 1 | "Java & Spring Boot Microservices : Proficient in Java with hands-on experience in Spring Boot, Microservices architecture, Spring Security, and Apache Pulsar for building scalable backend systems." (Custom Software Engineer, Oct 21, 2026) |
| [Publicis Sapient](https://sumble.com/orgs/publicis-sapient) | 149 | 0 | "…tools (Sqoop, Flume, NiFI etc), distributed messaging and ingestion frameworks (Kafka,Pulsar, Pub/Sub etc) and good to know traditional tools like Informatica, Talend etc." (data engineering manager, Oct 22, 2026) |
| [Jems Group](https://sumble.com/orgs/jems-s.a) | 117 | 0 | "…Spark, Glue…, Streaming et IoT (Kafka/Confluent, Pub/Sub, RabbitMQ, Pulsar, HiveMQ, NomoSense, Event/IoT Hub, ThingBoard…)" (experienced architect (IAOPS) (m/f), Nov 7, 2026) |

## Is hiring for Pulsar growing?

Since late 2025, job posts mentioning Pulsar went from 1.2 to 1.1 in every 10,000 job posts, and the last three months were flat.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 176 | 1,413,673 | 1.2 |
| Nov 2025 | 248 | 1,822,119 | 1.4 |
| Dec 2025 | 131 | 1,236,103 | 1.1 |
| Jan 2026 | 223 | 1,828,002 | 1.2 |
| Feb 2026 | 241 | 1,856,647 | 1.3 |
| Mar 2026 | 210 | 1,850,711 | 1.1 |
| Apr 2026 | 188 | 1,728,886 | 1.1 |
| May 2026 | 192 | 1,821,509 | 1.1 |
| Jun 2026 | 194 | 1,909,496 | 1.0 |
| Jul 2026 | 178 | 1,815,180 | 0.98 |
| Aug 2026 | 257 | 1,835,698 | 1.4 |

## How many companies named Pulsar in a job post for the first time in recent months?

Pulsar showed up in job posts at 102 companies for the first time from June to August 2026, and 95 in the three months before. That brings the companies naming it for the first time since October 2025 to 402, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 95 |
| June to August 2026 | 102 |
| October 2025 to August 2026 | 402 |

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 Pulsar?

The evidence for Pulsar is close to even: 51% of these companies name it in job posts, and 49% come from employees' profiles. 300 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Pulsar | 1,676 | 51% |
| Employees' profiles list Pulsar | 1,629 | 49% |

## What size are the companies that use Pulsar?

Pulsar's users look like the average tech page by size. The largest group is companies with 50 to 999 employees, at 41%. 648 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 23% | 22% |
| 50 to 999 | 41% | 38% |
| 1,000 to 5,000 | 16% | 17% |
| Over 5,000 | 20% | 23% |

## Where are Pulsar companies based?

Pulsar has an unusually large following in Brazil: 4.2% of its companies, against 2.8% on the typical tech page. Its companies are based in 89 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,332 | 43% | 43% |
| United Kingdom | 245 | 7.8% | 6.4% |
| India | 228 | 7.3% | 6.9% |
| France | 153 | 4.9% | 4.6% |
| Brazil | 130 | 4.2% | 2.8% |
| Germany | 99 | 3.2% | 4.4% |

## Which teams work with Pulsar?

Pulsar turns up most in job posts for engineering, data engineering and data teams. Next are data platform and platform teams, at 18 and 12 companies.

| Team | Companies |
|---|---:|
| Engineering | 37 |
| Data engineering | 33 |
| Data | 20 |
| Data platform | 18 |
| Platform | 12 |
| Platform engineering | 10 |

## Which roles mention Pulsar most?

Software Engineer is the most common role, in 40% of job posts naming Pulsar. The top four roles cover 57% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 40% | 903 | 233 | 237 |
| Data Engineer | 8.2% | 183 | 32 | 66 |
| Platform Engineer | 4.5% | 101 | 24 | 24 |
| AI Engineer | 4% | 89 | 24 | 23 |
| Software Architect | 2.6% | 59 | 13 | 13 |
| Engineer | 2.4% | 53 | 12 | 23 |

## Which companies started naming Pulsar in job posts recently?

Between April and August 2026, 117 companies with 50 or more employees first named Pulsar in a job post, 28 of them with more than 5,000 employees. XPENG leads the new mid-market companies, with 6 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [Ema](https://sumble.com/orgs/ema-unlimited) | 5 |
| AI native | [Otera](https://sumble.com/orgs/deepopinion) | 3 |
| AI native | [Leo AI](https://sumble.com/orgs/leoai) | 3 |
| AI native | [Suki](https://sumble.com/orgs/suki-ai) | 2 |
| AI native | [Krea](https://sumble.com/orgs/krea-ai) | 1 |
| Commercial | [K2 Space Corporation](https://sumble.com/orgs/k2-space) | 5 |
| Commercial | [Influential](https://sumble.com/orgs/influential) | 4 |
| Commercial | [TECEZE](https://sumble.com/orgs/teceze) | 4 |
| Commercial | [Publicis Media Colombia](https://sumble.com/orgs/publicis-media-colombia) | 3 |
| Commercial | [Telna](https://sumble.com/orgs/telna) | 3 |
| Mid-market | [XPENG](https://sumble.com/orgs/xpeng-motors) | 6 |
| Mid-market | [DFI Retail Group](https://sumble.com/orgs/dfi-retail-group) | 4 |
| Mid-market | [Datasite](https://sumble.com/orgs/datasite-3) | 4 |
| Mid-market | [Anglian Water Services](https://sumble.com/orgs/anglian-water) | 3 |
| Mid-market | [Early Warning](https://sumble.com/orgs/early-warning-services) | 3 |
| Enterprise | [The University of Texas at Austin](https://sumble.com/orgs/university-of-texas-at-austin) | 3 |
| Enterprise | [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 2 |
| Enterprise | [Omnicom Media](https://sumble.com/orgs/omnicom-media-group) | 2 |
| Enterprise | [Huntington National Bank](https://sumble.com/orgs/huntington-bank) | 2 |
| Enterprise | [Engineering Group](https://sumble.com/orgs/eng-it) | 2 |

Companies that named Pulsar 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 Pulsar companies use?

Pulsar companies are 26 times as likely as similar companies to use GWI: 5.3% of them, against 0.2%. Apache Druid is 25 times as common as usual, at 7.6%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| GWI | 58 | 5.3% | 0.2% | 26 times |
| Apache Druid | 84 | 7.6% | 0.31% | 25 times |
| Apache Hudi | 75 | 6.8% | 0.33% | 21 times |
| Flink | 444 | 40% | 2% | 21 times |
| Kafka Streams | 117 | 11% | 0.53% | 20 times |
| Protobuf | 164 | 15% | 0.79% | 19 times |
| Apache Avro | 134 | 12% | 0.65% | 19 times |
| ClickHouse | 186 | 17% | 0.91% | 19 times |

Shares are out of the 1,100 companies whose job posts name Pulsar, not counting firms whose job posts name almost every technology.

## Which project themes come up in Pulsar job posts?

960 job posts naming Pulsar describe broad digital transformation, and 482 describe Microservices Migration work. After that comes Data Infrastructure Migration, with 361.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 960 |
| Microservices Migration | 482 |
| Data Infrastructure Migration | 361 |
| Cloud Cost Optimization | 238 |

- "建设和演进基于 Kafka / Pulsar、Flink、CDC 等技术的流式数据基础设施" (Caterpillar Inc., Senior Data Platform & Streaming Architect, Nov 5, 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.