C5i tech stack
C5i builds mostly with Python, SQL, Java, TypeScript. Its stack also includes LangChain, AWS, Azure, CrewAI. Python is named in 6 of the 7 job postings C5i published in the last 12 months (86%). Counted by Alion from the job postings of C5i, updated Sep 28, 2026.
What programming languages does C5i use?
Python is named in 86% of job postings at C5i, followed by SQL (43%), Java (43%), TypeScript (29%).
What frameworks and libraries does C5i use?
LangChain is named in 57% of job postings at C5i, followed by CrewAI (43%), LangGraph (43%), React.js (14%).
What databases does C5i use?
Amazon Redshift is named in 14% of job postings at C5i.
Amazon Redshift
1 14%
What cloud and platforms does C5i use?
AWS is named in 43% of job postings at C5i, followed by Azure (43%), GCP (29%), Spark (29%).
AWS
3 43%
Azure
3 43%
GCP
2 29%
Spark
2 29%
AWS Lambda
1 14%
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What developer tools does C5i use?
Model Context Protocol is named in 43% of job postings at C5i, followed by pySpark (29%), Semantic Kernel (14%).
Which engineering practices does C5i ask for?
AI Agents is named in 71% of job postings at C5i, followed by CI/CD (57%), RAG (57%), Human-in-the-Loop (43%).
AI Agents
5 71%
CI/CD
4 57%
RAG
4 57%
Prompt Engineering
3 43%
Show all (17)
What does each C5i team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Solutions
5 postingsHow does your stack fit C5i?
How modern is the C5i stack?
C5i scores 79 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: 1; legacy ones: 0.
How common is the C5i stack in its industry?
Share of the 2,799 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like C5i
Questions about the C5i tech stack
What programming languages does C5i use?
The languages named in C5i job postings are Python (86%), SQL (43%), Java (43%), TypeScript (29%), Node JS (14%), as a share of the 7 postings of the last 12 months.
Does C5i use LangChain?
Yes. LangChain is named in 4 of 7 job postings (57%) and required in 2 of them.
What cloud and platforms does C5i use?
The cloud and platforms named in C5i job postings are AWS (3), Azure (3), GCP (2) (postings in brackets).
What skills do you need for a Solutions job at C5i?
Solutions postings at C5i most often require Python (4), CrewAI (2), LLM (2), LangChain (2), out of 5 postings in the last 12 months.
Is the C5i tech stack changing?
No new technology has appeared in C5i job postings in the last six months.
How modern is the C5i tech stack?
C5i scores 79 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: 1; legacy ones: 0.
How does Alion know the C5i tech stack?
Alion reads every job posting C5i publishes and tags the technologies each one names. The figures on this page count the 7 postings of the last 12 months and were updated on Sep 28, 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, "C5i tech stack: 47 technologies from 7 job postings", as of Sep 28, 2026. https://alion.io/company/c5i/technologies