C1 tech stack
C1 builds mostly with Python, Go, Rust, SQL. Its stack also includes Zscaler, DigitalOcean. Zscaler is named in 10 of the 14 job postings C1 published in the last 12 months (71%). Counted by Alion from the job postings of C1, updated Oct 17, 2026.
What programming languages does C1 use?
Python is named in 21% of job postings at C1, followed by Go (7%), Rust (7%), SQL (7%).
What cloud and platforms does C1 use?
Zscaler is named in 71% of job postings at C1, followed by DigitalOcean (43%), AWS (43%), GCP (29%).
Zscaler
10 71%
DigitalOcean
6 43%
AWS
6 43%
GCP
4 29%
Azure
4 29%
Okta
3 21%
Show all (11)
What developer tools does C1 use?
Terraform is named in 29% of job postings at C1, followed by Claude Code (7%), Copilot (7%), Cursor (7%).
Terraform
4 29%
Claude Code
1 7%
Copilot
1 7%
Cursor
1 7%
Docker
1 7%
Pulumi
1 7%
Cilium
1 7%
Consul
1 7%
Show all (9)
Which engineering practices does C1 ask for?
AI Agents is named in 50% of job postings at C1, followed by IAM (36%), Agentic Workflows (7%), Platform Engineering (7%).
AI Agents
7 50%
Platform Engineering
1 7%
Service Mesh
1 7%
What does each C1 team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Solutions
3 postingsSales
3 postingsHow does your stack fit C1?
How is the C1 stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the C1 stack?
C1 scores 71 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the C1 stack in its industry?
Share of the 323 companies in the same industries, whose stack Alion knows, that use each technology.
What sets C1 apart
Companies with a stack like C1
Questions about the C1 tech stack
What programming languages does C1 use?
The languages named in C1 job postings are Python (21%), Go (7%), Rust (7%), SQL (7%), as a share of the 14 postings of the last 12 months.
Does C1 use Zscaler?
Yes. Zscaler is named in 10 of 14 job postings (71%) and required in 10 of them.
What cloud and platforms does C1 use?
The cloud and platforms named in C1 job postings are Zscaler (10), DigitalOcean (6), AWS (6) (postings in brackets).
What skills do you need for a Solutions job at C1?
Solutions postings at C1 most often require AWS (3), Azure (3), GCP (3), LDAP (3), out of 3 postings in the last 12 months.
Is the C1 tech stack changing?
Yes. Kubernetes, Python, AI Agents, AWS first appeared in C1 job postings in the last six months.
How modern is the C1 tech stack?
C1 scores 71 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the C1 tech stack?
Alion reads every job posting C1 publishes and tags the technologies each one names. The figures on this page count the 14 postings of the last 12 months and were updated on Oct 17, 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 tech stack: 30 technologies from 14 job postings", as of Oct 17, 2026. https://alion.io/company/c1/technologies