Cheiron tech stack
Cheiron builds mostly with Python, TypeScript, JavaScript. Its stack also includes PostgreSQL, FastAPI, LangGraph, OpenAI. LLM is named in 8 of the 13 job postings Cheiron published in the last 12 months (62%). Counted by Alion from the job postings of Cheiron, updated Sep 27, 2026.
What programming languages does Cheiron use?
Python is named in 38% of job postings at Cheiron, followed by TypeScript (31%), JavaScript (23%).
What frameworks and libraries does Cheiron use?
FastAPI is named in 38% of job postings at Cheiron, followed by LangGraph (31%), LangChain (31%), React.js (23%).
FastAPI
5 38%
LangGraph
4 31%
LangChain
4 31%
React.js
3 23%
Tailwind CSS
2 15%
Next.js
2 15%
Playwright
2 15%
React Query
2 15%
Show all (11)
What databases does Cheiron use?
PostgreSQL is named in 38% of job postings at Cheiron.
PostgreSQL
5 38%
What cloud and platforms does Cheiron use?
OpenAI is named in 15% of job postings at Cheiron, followed by AWS (15%), Kubernetes (15%), Figma (8%).
What developer tools does Cheiron use?
Claude Code is named in 62% of job postings at Cheiron, followed by Cursor (62%), Storybook (15%), Terraform (15%).
What AI and ML technologies does Cheiron use?
LLM is named in 62% of job postings at Cheiron.
LLM
8 62%
Which engineering practices does Cheiron ask for?
Knowledge Graph is named in 62% of job postings at Cheiron, followed by RAG (31%), Function Calling (23%), LLM Evaluation (23%).
RAG
4 31%
Function Calling
3 23%
AI Agents
3 23%
Semantic Search
2 15%
Show all (12)
What does each Cheiron team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
4 postingsHow does your stack fit Cheiron?
How is the Cheiron 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 Cheiron stack?
Cheiron scores 81 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 Cheiron stack in its industry?
Share of the 544 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Cheiron
Questions about the Cheiron tech stack
What programming languages does Cheiron use?
The languages named in Cheiron job postings are Python (38%), TypeScript (31%), JavaScript (23%), as a share of the 13 postings of the last 12 months.
Does Cheiron use FastAPI?
Yes. FastAPI is named in 5 of 13 job postings (38%) and required in 4 of them.
What cloud and platforms does Cheiron use?
The cloud and platforms named in Cheiron job postings are OpenAI (2), AWS (2), Kubernetes (2) (postings in brackets).
What skills do you need for a Backend job at Cheiron?
Backend postings at Cheiron most often require Claude Code (4), Cursor (4), FastAPI (4), LLM (4), out of 4 postings in the last 12 months.
Is the Cheiron tech stack changing?
Yes. Agentic Workflows, LLM Evaluation first appeared in Cheiron job postings in the last six months.
How modern is the Cheiron tech stack?
Cheiron scores 81 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 Cheiron tech stack?
Alion reads every job posting Cheiron publishes and tags the technologies each one names. The figures on this page count the 13 postings of the last 12 months and were updated on Sep 27, 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, "Cheiron tech stack: 37 technologies from 13 job postings", as of Sep 27, 2026. https://alion.io/company/cheiron/technologies