Expel tech stack
Expel builds mostly with Python, SQL, Go, JavaScript. Its stack also includes SIEM, AWS, Scikit-learn, LangChain. SIEM is named in 9 of the 15 job postings Expel published in the last 12 months (60%). Counted by Alion from the job postings of Expel, updated Sep 29, 2026.
What programming languages does Expel use?
Python is named in 40% of job postings at Expel, followed by SQL (13%), Go (7%), JavaScript (7%).
What frameworks and libraries does Expel use?
Scikit-learn is named in 20% of job postings at Expel, followed by LangChain (13%), LlamaIndex (13%), Matplotlib (13%).
Scikit-learn
3 20%
LangChain
2 13%
LlamaIndex
2 13%
Matplotlib
2 13%
NumPy
2 13%
Seaborn
2 13%
Statsmodels
2 13%
Show all (10)
What cloud and platforms does Expel use?
SIEM is named in 60% of job postings at Expel, followed by AWS (47%), Linux (40%), GCP (40%).
AWS
7 47%
GCP
6 40%
Azure
4 27%
Amazon EKS
2 13%
Crowdstrike
2 13%
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What developer tools does Expel use?
Claude Code is named in 7% of job postings at Expel, followed by Git (7%), Microsoft Excel (7%), Model Context Protocol (7%).
What AI and ML technologies does Expel use?
LLM is named in 13% of job postings at Expel, followed by Claude (7%).
Which engineering practices does Expel ask for?
AI Agents is named in 20% of job postings at Expel, followed by Machine Learning (20%), TCP/IP (20%), Function Calling (20%).
AI Agents
3 20%
Function Calling
3 20%
Anomaly Detection
2 13%
Embeddings
2 13%
Prompt Engineering
2 13%
Show all (12)
What does each Expel team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Security
5 postingsHow does your stack fit Expel?
How much does Expel pay by technology?
Median stated pay of the postings that name each technology, against the median of all Expel postings with stated pay: $183k across 12 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| SIEM | 8 | $166k | −10% |
| Python | 6 | $207k | +13% |
| AWS | 6 | $192k | +5% |
| GCP | 5 | $207k | +13% |
| Linux | 5 | $178k | −3% |
How modern is the Expel stack?
Expel 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: 2; legacy ones: 0.
How common is the Expel stack in its industry?
Share of the 1,056 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Expel
Questions about the Expel tech stack
What programming languages does Expel use?
The languages named in Expel job postings are Python (40%), SQL (13%), Go (7%), JavaScript (7%), as a share of the 15 postings of the last 12 months.
Does Expel use Scikit-learn?
Yes. Scikit-learn is named in 3 of 15 job postings (20%) and required in 2 of them.
What cloud and platforms does Expel use?
The cloud and platforms named in Expel job postings are SIEM (9), AWS (7), Linux (6) (postings in brackets).
What skills do you need for a Security job at Expel?
Security postings at Expel most often require Linux (5), Windows (5), AWS (4), SIEM (4), out of 5 postings in the last 12 months.
Is the Expel tech stack changing?
No new technology has appeared in Expel job postings in the last six months.
How modern is the Expel tech stack?
Expel 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: 2; legacy ones: 0.
How does Alion know the Expel tech stack?
Alion reads every job posting Expel publishes and tags the technologies each one names. The figures on this page count the 15 postings of the last 12 months and were updated on Sep 29, 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, "Expel tech stack: 57 technologies from 15 job postings", as of Sep 29, 2026. https://alion.io/company/expel/technologies