C1 Holding tech stack
C1 Holding builds mostly with Python, Bash, PowerShell, 1C. Its stack also includes Linux, SIEM, OpenSearch, MS SQL. Linux is named in 9 of the 16 job postings C1 Holding published in the last 12 months (56%). Counted by Alion from the job postings of C1 Holding, updated Nov 13, 2026.
What programming languages does C1 Holding use?
Python is named in 44% of job postings at C1 Holding, followed by Bash (31%), PowerShell (25%), 1C (19%).
1C 
What frameworks and libraries does C1 Holding use?
Metasploit is named in 6% of job postings at C1 Holding, followed by NumPy (6%), Pandas (6%), Scikit-learn (6%).
What databases does C1 Holding use?
OpenSearch is named in 13% of job postings at C1 Holding, followed by MS SQL (6%), PostgreSQL (6%), ClickHouse (6%).
What cloud and platforms does C1 Holding use?
Linux is named in 56% of job postings at C1 Holding, followed by SIEM (50%), Windows (38%), Active Directory (25%).
Kubernetes
2 13%
Burp Suite
1 6%
GitHub Actions
1 6%
Show all (16)
What developer tools does C1 Holding use?
Git is named in 19% of job postings at C1 Holding, followed by Tcpdump (13%), Wireshark (13%), Docker (13%).
Git
3 19%
Tcpdump
2 13%
Wireshark
2 13%
Docker
2 13%
Rest API
2 13%
Ansible
1 6%
Jenkins
1 6%
Show all (16)
What AI and ML technologies does C1 Holding use?
LLM is named in 6% of job postings at C1 Holding.
LLM
1 6%
Which engineering practices does C1 Holding ask for?
VPN is named in 38% of job postings at C1 Holding, followed by TCP/IP (31%), DNS (19%), Anomaly Detection (6%).
Anomaly Detection
1 6%
CI/CD
1 6%
Embeddings
1 6%
RAG
1 6%
Show all (12)
What does each C1 Holding team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Security
8 postingsHow does your stack fit C1 Holding?
How modern is the C1 Holding stack?
C1 Holding scores 77 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How common is the C1 Holding stack in its industry?
Share of the 948 companies in the same industries, whose stack Alion knows, that use each technology.
What sets C1 Holding apart
Companies with a stack like C1 Holding
PSB
44 shared technologies
Cloud.ru
43 shared technologies
Gazprom Neft
49 shared technologies
Momentum Engineering
44 shared technologies
Telefónica
47 shared technologies
Extreme Networks
45 shared technologies
Check Point Software Technologies
48 shared technologies
Digital League
50 shared technologies
Questions about the C1 Holding tech stack
What programming languages does C1 Holding use?
The languages named in C1 Holding job postings are Python (44%), Bash (31%), PowerShell (25%), 1C (19%), SQL (13%), as a share of the 16 postings of the last 12 months.
Does C1 Holding use Linux?
Yes. Linux is named in 9 of 16 job postings (56%) and required in 7 of them.
What cloud and platforms does C1 Holding use?
The cloud and platforms named in C1 Holding job postings are Linux (9), SIEM (8), Windows (6) (postings in brackets).
What skills do you need for a Security job at C1 Holding?
Security postings at C1 Holding most often require SIEM (4), Active Directory (3), Linux (3), Bash (2), out of 8 postings in the last 12 months.
Is the C1 Holding tech stack changing?
No new technology has appeared in C1 Holding job postings in the last six months.
How modern is the C1 Holding tech stack?
C1 Holding scores 77 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How does Alion know the C1 Holding tech stack?
Alion reads every job posting C1 Holding publishes and tags the technologies each one names. The figures on this page count the 16 postings of the last 12 months and were updated on Nov 13, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "C1 Holding tech stack: 62 technologies from 16 job postings", as of Nov 13, 2026. https://alion.io/company/c1-holding/technologies