GCI tech stack
GCI builds mostly with Python, PowerShell, Bash, SQL. Its stack also includes Linux, AWS, MySQL, ElasticSearch. Python is named in 17 of the 29 job postings GCI published in the last 12 months (59%). Counted by Alion from the job postings of GCI, updated Nov 3, 2026.
What programming languages does GCI use?
Python is named in 59% of job postings at GCI, followed by PowerShell (31%), Bash (28%), SQL (28%).
Python
17 59%
PowerShell
9 31%
Bash
8 28%
SQL
8 28%
JavaScript
6 21%
Java
6 21%
TypeScript
4 14%
C++
2 7%
Show all (12)
What frameworks and libraries does GCI use?
PyTorch is named in 14% of job postings at GCI, followed by TensorFlow (14%), Spring Boot (10%), Angular (10%).
PyTorch
4 14%
TensorFlow
4 14%
Spring Boot
3 10%
Angular
3 10%
JQuery
2 7%
React.js
2 7%
Electron
1 3%
Express
1 3%
Show all (20)
What databases does GCI use?
MySQL is named in 24% of job postings at GCI, followed by ElasticSearch (21%), Oracle (14%), PostgreSQL (14%).
MySQL
7 24%
ElasticSearch
6 21%
Oracle
4 14%
PostgreSQL
4 14%
DynamoDB
2 7%
Snowflake
2 7%
Azure SQL Database
1 3%
Cassandra
1 3%
Show all (16)
What cloud and platforms does GCI use?
Linux is named in 52% of job postings at GCI, followed by AWS (38%), Windows (31%), Kubernetes (24%).
AWS
11 38%
Kubernetes
7 24%
Amazon EC2
6 21%
Azure
4 14%
GitHub
4 14%
Show all (37)
What developer tools does GCI use?
Jenkins is named in 24% of job postings at GCI, followed by Rest API (21%), Terraform (21%), CloudFormation (21%).
Jenkins
7 24%
Rest API
6 21%
Terraform
6 21%
CloudFormation
6 21%
Docker
6 21%
Git
5 17%
Ansible
4 14%
Apache Tomcat
3 10%
Show all (32)
Which engineering practices does GCI ask for?
CI/CD is named in 31% of job postings at GCI, followed by Machine Learning (31%), PKI (21%), IAM (14%).
CI/CD
9 31%
Configuration Management
3 10%
Show all (17)
What does each GCI team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
6 postingsDevOps
5 postingsSecurity
5 postingsNetworking
4 postingsHow does your stack fit GCI?
How much does GCI pay by technology?
Median stated pay of the postings that name each technology, against the median of all GCI postings with stated pay: $238k across 29 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 17 | $238k | 0% |
| Linux | 15 | $238k | 0% |
| AWS | 11 | $275k | +15% |
| Windows | 9 | $238k | 0% |
| PowerShell | 9 | $77k | −68% |
| SQL | 8 | $256k | +8% |
| Bash | 8 | $238k | 0% |
| MySQL | 7 | $318k | +33% |
| Kubernetes | 7 | $275k | +15% |
| ElasticSearch | 6 | $318k | +33% |
How is the GCI 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 GCI stack?
GCI 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: 1; legacy ones: 0.
How common is the GCI stack in its industry?
Share of the 209 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like GCI
Ardent Principles
102 shared technologies
The Swift Group
104 shared technologies
J5 Consulting
96 shared technologies
Bcore
97 shared technologies
Momentum Engineering
98 shared technologies
Freedom Consulting Group
102 shared technologies
Markon Solutions
100 shared technologies
Nightwing
111 shared technologies
Questions about the GCI tech stack
What programming languages does GCI use?
The languages named in GCI job postings are Python (59%), PowerShell (31%), Bash (28%), SQL (28%), JavaScript (21%), as a share of the 29 postings of the last 12 months.
Does GCI use PyTorch?
Yes. PyTorch is named in 4 of 29 job postings (14%) and required in 4 of them.
What cloud and platforms does GCI use?
The cloud and platforms named in GCI job postings are Linux (15), AWS (11), Windows (9) (postings in brackets).
What skills do you need for a Backend job at GCI?
Backend postings at GCI most often require AWS (4), Git (4), JavaScript (4), Rest API (4), out of 6 postings in the last 12 months.
Is the GCI tech stack changing?
Yes. Node JS, Sass, VPN, Hyper-V first appeared in GCI job postings in the last six months.
How modern is the GCI tech stack?
GCI 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: 1; legacy ones: 0.
How does Alion know the GCI tech stack?
Alion reads every job posting GCI publishes and tags the technologies each one names. The figures on this page count the 29 postings of the last 12 months and were updated on Nov 3, 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, "GCI tech stack: 135 technologies from 29 job postings", as of Nov 3, 2026. https://alion.io/company/gci-7/technologies