Critical Start tech stack
Critical Start builds mostly with PowerShell, Python. Its stack also includes Cortex XDR, Microsoft Sentinel. Cortex XDR is named in 3 of the 4 job postings Critical Start published in the last 12 months (75%). Counted by Alion from the job postings of Critical Start, updated Oct 20, 2026.
What programming languages does Critical Start use?
PowerShell is named in 25% of job postings at Critical Start, followed by Python (25%).
PowerShell
1 25%
Python
1 25%
What cloud and platforms does Critical Start use?
Cortex XDR is named in 75% of job postings at Critical Start, followed by Microsoft Sentinel (75%), SIEM (75%), Splunk (75%).
Cortex XDR
3 75%
Microsoft Sentinel
3 75%
Splunk
3 75%
Crowdstrike
2 50%
Microsoft Defender
2 50%
AWS
1 25%
Azure
1 25%
Show all (13)
What developer tools does Critical Start use?
Ansible is named in 25% of job postings at Critical Start, followed by Puppet (25%), SaltStack (25%), Terraform (25%).
Which engineering practices does Critical Start ask for?
SLI/SLO/SLA is named in 100% of job postings at Critical Start.
SLI/SLO/SLA
4 100%
What does each Critical Start team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Security
4 postingsHow does your stack fit Critical Start?
How modern is the Critical Start stack?
Critical Start scores 65 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 Critical Start stack in its industry?
Share of the 198 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Critical Start apart
Companies with a stack like Critical Start
Hub One
14 shared technologies
The Missing Link
14 shared technologies
Armor
15 shared technologies
Deloitte Switzerland
14 shared technologies
Bouygues Telecom
14 shared technologies
Skyllit
14 shared technologies
Farmers & Merchants Bank of Long Beach
14 shared technologies
Optiv
16 shared technologies
Questions about the Critical Start tech stack
What programming languages does Critical Start use?
The languages named in Critical Start job postings are PowerShell (25%), Python (25%), as a share of the 4 postings of the last 12 months.
Does Critical Start use Cortex XDR?
Yes. Cortex XDR is named in 3 of 4 job postings (75%) and required in 3 of them.
What cloud and platforms does Critical Start use?
The cloud and platforms named in Critical Start job postings are Cortex XDR (3), Microsoft Sentinel (3), SIEM (3) (postings in brackets).
What skills do you need for a Security job at Critical Start?
Security postings at Critical Start most often require Cortex XDR (3), Microsoft Sentinel (3), SIEM (3), Splunk (3), out of 4 postings in the last 12 months.
Is the Critical Start tech stack changing?
No new technology has appeared in Critical Start job postings in the last six months.
How modern is the Critical Start tech stack?
Critical Start scores 65 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 Critical Start tech stack?
Alion reads every job posting Critical Start publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 20, 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, "Critical Start tech stack: 20 technologies from 4 job postings", as of Oct 20, 2026. https://alion.io/company/critical-start/technologies