Citco tech stack
Citco builds mostly with Python, SQL, JavaScript, Node JS. Its stack also includes AWS, Amazon S3, React.js, PostgreSQL. Python is named in 53 of the 263 job postings Citco published in the last 12 months (20%). Counted by Alion from the job postings of Citco, updated Nov 10, 2026.
What programming languages does Citco use?
Python is named in 20% of job postings at Citco, followed by SQL (17%), JavaScript (8%), Node JS (5%).
Python
53 20%
SQL
46 17%
JavaScript
20 8%
Node JS
12 5%
TypeScript
11 4%
PowerShell
5 2%
Bash
4 2%
Visual Basic
4 2%
Show all (15)
What frameworks and libraries does Citco use?
React.js is named in 6% of job postings at Citco, followed by LangChain (2%), Nest.JS (2%), FastAPI (1%).
React.js
16 6%
LangChain
4 2%
Nest.JS
4 2%
FastAPI
3 1%
Scikit-learn
3 1%
TensorFlow
3 1%
LlamaIndex
3 1%
Pandas
3 1%
Show all (25)
What databases does Citco use?
PostgreSQL is named in 4% of job postings at Citco, followed by Oracle (3%), MS SQL (2%), Delta Lake (2%).
PostgreSQL
10 4%
Oracle
7 3%
MS SQL
6 2%
Delta Lake
4 2%
Snowflake
4 2%
DynamoDB
3 1%
MySQL
1 <1%
Show all (9)
What cloud and platforms does Citco use?
AWS is named in 20% of job postings at Citco, followed by Amazon S3 (8%), AWS Lambda (8%), Power BI (7%).
AWS
52 20%
AWS Lambda
20 8%
Power BI
19 7%
Azure
17 6%
Databricks
14 5%
Spark
10 4%
Amazon EC2
9 3%
Show all (42)
And 2 more, each named in fewer postings.
What developer tools does Citco use?
Microsoft Excel is named in 63% of job postings at Citco, followed by Rest API (5%), Git (5%), Docker (3%).
Rest API
14 5%
Git
12 5%
Docker
9 3%
Terraform
8 3%
Copilot
8 3%
Jenkins
7 3%
pySpark
7 3%
Show all (37)
What AI and ML technologies does Citco use?
LLM is named in 3% of job postings at Citco, followed by Claude (1%), ChatGPT (<1%).
Which engineering practices does Citco ask for?
CI/CD is named in 11% of job postings at Citco, followed by ETL/ELT (6%), Machine Learning (5%), IAM (5%).
CI/CD
28 11%
AI Agents
13 5%
RAG
7 3%
Show all (35)
What does each Citco team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Leadership
88 postingsBackend
19 postingsAnalytics
19 postingsEnterprise Apps
9 postingsHow does your stack fit Citco?
How is the Citco 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 Citco stack?
Citco scores 83 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: 3; legacy ones: 1.
How common is the Citco stack in its industry?
Share of the 118 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Citco apart
Companies with a stack like Citco
BlackRock
117 shared technologies
Storm Group
118 shared technologies
Unisys
129 shared technologies
Hexaware Technologies
115 shared technologies
LexisNexis
117 shared technologies
Zurich Australia
119 shared technologies
Zurich Insurance Group
115 shared technologies
Intercontinental Exchange
130 shared technologies
Questions about the Citco tech stack
What programming languages does Citco use?
The languages named in Citco job postings are Python (20%), SQL (17%), JavaScript (8%), Node JS (5%), TypeScript (4%), as a share of the 263 postings of the last 12 months.
Does Citco use React.js?
Yes. React.js is named in 16 of 263 job postings (6%) and required in 15 of them.
What cloud and platforms does Citco use?
The cloud and platforms named in Citco job postings are AWS (52), Amazon S3 (21), AWS Lambda (20) (postings in brackets).
What skills do you need for a Leadership job at Citco?
Leadership postings at Citco most often require Microsoft Excel (73), AWS (12), Python (9), SQL (7), out of 88 postings in the last 12 months.
Is the Citco tech stack changing?
Yes. Active Directory, Ping Identity, VPN, GraphQL first appeared in Citco job postings in the last six months.
How modern is the Citco tech stack?
Citco scores 83 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: 3; legacy ones: 1.
How does Alion know the Citco tech stack?
Alion reads every job posting Citco publishes and tags the technologies each one names. The figures on this page count the 263 postings of the last 12 months and were updated on Nov 10, 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, "Citco tech stack: 166 technologies from 263 job postings", as of Nov 10, 2026. https://alion.io/company/citco/technologies