CGI tech stack
CGI builds mostly with Java, Python, JavaScript, TypeScript. Its stack also includes Kubernetes, AWS, Angular, React.js. Java is named in 80 of the 356 job postings CGI published in the last 12 months (22%). Counted by Alion from the job postings of CGI, updated Nov 12, 2026.
What programming languages does CGI use?
Java is named in 22% of job postings at CGI, followed by Python (22%), JavaScript (19%), TypeScript (15%).
Java
80 22%
Python
78 22%
JavaScript
66 19%
TypeScript
52 15%
C#
34 10%
SQL
29 8%
PowerShell
15 4%
Bash
13 4%
Show all (27)
What frameworks and libraries does CGI use?
Angular is named in 11% of job postings at CGI, followed by React.js (4%), Spring Boot (4%), Playwright (3%).
Angular
39 11%
React.js
15 4%
Spring Boot
13 4%
Playwright
9 3%
Vue.js
7 2%
Selenium
6 2%
OpenTelemetry
4 1%
Pytest
4 1%
Show all (56)
And 16 more, each named in fewer postings.
What databases does CGI use?
PostgreSQL is named in 3% of job postings at CGI, followed by Snowflake (2%), ElasticSearch (2%), Redis (2%).
PostgreSQL
11 3%
Snowflake
7 2%
ElasticSearch
6 2%
Redis
6 2%
MS SQL
4 1%
Oracle
4 1%
DynamoDB
3 1%
Cassandra
3 1%
Show all (19)
What cloud and platforms does CGI use?
Kubernetes is named in 22% of job postings at CGI, followed by AWS (21%), Azure (20%), Linux (11%).
Kubernetes
78 22%
AWS
75 21%
Azure
70 20%
GCP
30 8%
.NET
24 7%
Apache Kafka
17 5%
Azure DevOps
17 5%
Show all (74)
And 34 more, each named in fewer postings.
What developer tools does CGI use?
Docker is named in 15% of job postings at CGI, followed by Terraform (12%), Git (11%), Rest API (9%).
Docker
52 15%
Terraform
41 12%
Git
39 11%
Rest API
33 9%
Ansible
32 9%
Jenkins
26 7%
Prometheus
13 4%
Copilot
11 3%
Show all (58)
And 18 more, each named in fewer postings.
What AI and ML technologies does CGI use?
LLM is named in 2% of job postings at CGI, followed by Claude (1%).
Which engineering practices does CGI ask for?
CI/CD is named in 31% of job postings at CGI, followed by Machine Learning (6%), Platform Engineering (4%), IAM (3%).
CI/CD
111 31%
Platform Engineering
16 4%
Incident Management
11 3%
AI Agents
10 3%
Show all (40)
What does each CGI team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
108 postingsDevOps
71 postingsData Science
32 postingsEnterprise Apps
27 postingsSecurity
21 postingsAI/ML
17 postingsHow does your stack fit CGI?
How is the CGI 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 CGI stack?
CGI scores 76 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: 2; legacy ones: 0.
How common is the CGI stack in its industry?
Share of the 8,895 companies in the same industries, whose stack Alion knows, that use each technology.
What sets CGI apart
Companies with a stack like CGI
Questions about the CGI tech stack
What programming languages does CGI use?
The languages named in CGI job postings are Java (22%), Python (22%), JavaScript (19%), TypeScript (15%), C# (10%), as a share of the 356 postings of the last 12 months.
Does CGI use Angular?
Yes. Angular is named in 39 of 356 job postings (11%) and required in 37 of them.
What cloud and platforms does CGI use?
The cloud and platforms named in CGI job postings are Kubernetes (78), AWS (75), Azure (70) (postings in brackets).
What skills do you need for a Backend job at CGI?
Backend postings at CGI most often require Java (59), Angular (30), Python (26), AWS (19), out of 108 postings in the last 12 months.
Is the CGI tech stack changing?
Yes. Next.js, Loki, Red Teaming, Microsoft Sentinel first appeared in CGI job postings in the last six months.
How modern is the CGI tech stack?
CGI scores 76 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: 2; legacy ones: 0.
How does Alion know the CGI tech stack?
Alion reads every job posting CGI publishes and tags the technologies each one names. The figures on this page count the 356 postings of the last 12 months and were updated on Nov 12, 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, "CGI tech stack: 276 technologies from 356 job postings", as of Nov 12, 2026. https://alion.io/company/cgi/technologies