We found 1,769 companies that use Cilium. 942 of them name it in their own job posts, and the rest through employees' public profiles. Hiring for it is growing, with 1,094 job posts naming it from October 2025 to August 2026. It comes up most in Platform Engineer job posts.
Which companies name Cilium in the most job posts?
The five companies with the most job posts naming Cilium are Cisco, Devoteam, ByteDance, Form3 and Mirantis. Mirantis is the newest of the five companies in the table, with its first job post naming it in July 2024.
CompanyPostsPeopleRecent job post
CiscoScientific and Technical Services · first seen Jun 202413518
"Develop and review high-quality Go and eBPF code for Cilium open-source and Enterprise edition codebases"Software Engineering Technical Leader, Nov 7, 2026
DevoteamProfessional Services · first seen Oct 2023412
"Réseau & Sécurité : CNI (Cilium, Calico), Service Mesh (Istio), Vault (HashiCorp), OPA / Kyverno."platform engineer kubernetes - h/f, Oct 22, 2026
ByteDanceScientific and Technical Services · first seen Jan 2023400
"Contributions to cloud-native open-source projects (e.g., Kubernetes, Containerd, Cilium/eBPF), even at a small scale."Software Engineer Intern (Traffic Infrastructure) - 2027 Summer, Oct 23, 2026
Form3first seen Nov 2022363
"CockroachDB, NATS JetStream, Elasticsearch, Vault, Cilium"Senior Software Developer (Go) - US Payments (Contract), Nov 4, 2026
Mirantisfirst seen Jul 2024350
"Cloud & Kubernetes Networking: Familiarity with CNI plugins (Calico, Cilium)."Senior Software Engineer – BMaaS & Datacenter Networking, Nov 1, 2026
Hiring for Cilium is growing. 0.72 in every 10,000 job posts named it from June to August 2026, against 0.54 from March to May. August 2026 was its highest month since October 2025, at 0.77.
Show the data
Month
Job posts naming Cilium
All job posts
Per 10,000
Oct 2025
74
1,413,673
0.52
Nov 2025
93
1,822,119
0.51
Dec 2025
43
1,236,103
0.35
Jan 2026
89
1,828,002
0.49
Feb 2026
102
1,856,647
0.55
Mar 2026
92
1,850,711
0.50
Apr 2026
95
1,728,886
0.55
May 2026
105
1,821,509
0.58
Jun 2026
124
1,909,496
0.65
Jul 2026
136
1,815,180
0.75
Aug 2026
141
1,835,698
0.77
How many companies named Cilium in a job post for the first time in recent months?
Cilium showed up in job posts at 114 companies for the first time from June to August 2026, and 102 in the three months before. The 114 from June to August are 12% of all 942 companies whose job posts name it.
March to May 2026102
June to August 2026114
October 2025 to August 2026343
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 Cilium?
Employees' profiles add 827 companies to the 942 that name Cilium in job posts. 151 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Cilium
94253%
Employees' profiles list Cilium
82747%
1,769 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Cilium?
42% of Cilium users are companies with 50 to 999 employees, the largest size group. 303 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
17%22%
50 to 999
42%38%
1,000 to 5,000
19%17%
Over 5,000
21%23%
Where are Cilium companies based?
The Netherlands is 2.3 times as common among Cilium companies as on the typical tech page, at 4.5%. The United States leads overall with 35%. India is less common than usual, at 3.9% against 6.9% on the typical tech page.
ShareTypical
United States
35%43%
France
7.8%4.6%
Germany
7.1%4.4%
United Kingdom
5.7%6.4%
The Netherlands
4.5%2%
India
3.9%6.9%
Companies in 84 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
598
35%
43%
France
132
7.8%
4.6%
Germany
120
7.1%
4.4%
United Kingdom
97
5.7%
6.4%
The Netherlands
77
4.5%
2%
India
67
3.9%
6.9%
Which teams work with Cilium?
At 28 companies, the team named in Cilium job posts is platform engineering, at least twice the next. Infrastructure and DevOps teams come next, at 12 and 11 companies.
TeamCompanies
Platform engineering
28
Infrastructure
12
DevOps
11
SRE
8
Engineering
7
Platform
7
What else do Cilium companies use?
25% of Cilium companies also use Linkerd, against 0.59% of similar companies. Mimir is 39 times as common as usual, at 9.3%.
Share of the 580 Cilium companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Cilium in job posts recently?
Between April and August 2026, 143 companies with 50 or more employees first named Cilium in a job post, 28 of them with more than 5,000 employees. CloudFerro S.A. has the most job posts of the new commercial companies, 11 from April to August.
Companies that named Cilium 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 Cilium most?
Site Reliability Engineer job posts naming Cilium grew the fastest among its top roles: 30 from June to August 2026, up from 17 from March to May. The top four roles cover 44% of these job posts.
RoleSharePosts
Platform Engineer
15%168
DevOps Engineer
11%118
Software Engineer
11%116
Site Reliability Engineer
7.6%83
Network Engineer
6.9%76
DevSecOps Engineer
3.9%43
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Platform Engineer
15%
168
46
54
DevOps Engineer
11%
118
29
42
Software Engineer
11%
116
24
41
Site Reliability Engineer
7.6%
83
17
30
Network Engineer
6.9%
76
19
28
DevSecOps Engineer
3.9%
43
20
8
Which project themes come up in Cilium job posts?
Beyond general digital transformation, the most common project theme in Cilium job posts is Cloud Cost Optimization (199 posts). After that comes Cloud Migration, with 82.
Project themeJob posts
Digital Transformation476
Cloud Cost Optimization199
Cloud Migration82
Microservices Migration78
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.
