Glean tech stack
Glean builds mostly with Python, Java, SQL, C++. Its stack also includes GitHub, AWS, Google BigQuery, PyTorch. GitHub is named in 156 of the 159 job postings Glean published in the last 12 months (98%). Counted by Alion from the job postings of Glean, updated Nov 11, 2026.
What programming languages does Glean use?
Python is named in 25% of job postings at Glean, followed by Java (14%), SQL (13%), C++ (11%).
Python
39 25%
Java
23 14%
SQL
21 13%
C++
18 11%
Go
16 10%
TypeScript
13 8%
JavaScript
12 8%
Apex
2 1%
Show all (14)
What frameworks and libraries does Glean use?
PyTorch is named in 2% of job postings at Glean, followed by TensorFlow (2%), Bootstrap (1%), Lightning Web Components (1%).
PyTorch
3 2%
TensorFlow
3 2%
Bootstrap
2 1%
React.js
2 1%
TensorFlow C++
2 1%
OpenTelemetry
2 1%
Django
1 1%
Show all (16)
What databases does Glean use?
Google BigQuery is named in 2% of job postings at Glean, followed by Redis (1%).
Google BigQuery
3 2%
Redis
1 1%
What cloud and platforms does Glean use?
GitHub is named in 98% of job postings at Glean, followed by AWS (19%), GCP (19%), Azure (16%).
Show all (20)
What developer tools does Glean use?
Rest API is named in 8% of job postings at Glean, followed by Model Context Protocol (6%), Terraform (3%), Copilot (3%).
Rest API
13 8%
Model Context Protocol
10 6%
Terraform
4 3%
Copilot
4 3%
Docker
3 2%
Git
3 2%
dbt
3 2%
Cursor
3 2%
Show all (22)
What AI and ML technologies does Glean use?
LLM is named in 98% of job postings at Glean, followed by Gemini (2%), ChatGPT (2%), Claude (1%).
Which engineering practices does Glean ask for?
AI Agents is named in 98% of job postings at Glean, followed by Machine Learning (9%), RAG (9%), SLI/SLO/SLA (5%).
AI Agents
156 98%
RAG
15 9%
SLI/SLO/SLA
8 5%
CI/CD
8 5%
Function Calling
6 4%
NLP
6 4%
Show all (41)
And 1 more, each named in fewer postings.
What does each Glean team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Sales
40 postingsProduct
20 postingsBackend
19 postingsSolutions
15 postingsMarketing
14 postingsAI/ML
11 postingsHow does your stack fit Glean?
How much does Glean pay by technology?
Median stated pay of the postings that name each technology, against the median of all Glean postings with stated pay: $265k across 122 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| LLM | 121 | $265k | 0% |
| GitHub | 120 | $265k | 0% |
| Python | 31 | $270k | +2% |
| AWS | 24 | $250k | −6% |
| GCP | 23 | $250k | −6% |
| Java | 19 | $265k | 0% |
| Azure | 19 | $236k | −11% |
| C++ | 16 | $268k | +1% |
| SQL | 15 | $210k | −21% |
| Go | 12 | $300k | +13% |
How is the Glean 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 Glean stack?
Glean scores 85 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: 4; legacy ones: 0.
How common is the Glean stack in its industry?
Share of the 1,750 companies in the same industries, whose stack Alion knows, that use each technology.
Glean products in its job postings
Postings at Glean name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Glean
Questions about the Glean tech stack
What programming languages does Glean use?
The languages named in Glean job postings are Python (25%), Java (14%), SQL (13%), C++ (11%), Go (10%), as a share of the 159 postings of the last 12 months.
Does Glean use PyTorch?
Yes. PyTorch is named in 3 of 159 job postings (2%) and required in 3 of them.
What cloud and platforms does Glean use?
The cloud and platforms named in Glean job postings are GitHub (156), AWS (31), GCP (30) (postings in brackets).
What skills do you need for a Sales job at Glean?
Sales postings at Glean most often require GitHub (40), LLM (40), out of 40 postings in the last 12 months.
Is the Glean tech stack changing?
Yes. OpenTelemetry, Git, Apex, Lightning Web Components first appeared in Glean job postings in the last six months.
How modern is the Glean tech stack?
Glean scores 85 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: 4; legacy ones: 0.
How does Alion know the Glean tech stack?
Alion reads every job posting Glean publishes and tags the technologies each one names. The figures on this page count the 159 postings of the last 12 months and were updated on Nov 11, 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, "Glean tech stack: 119 technologies from 159 job postings", as of Nov 11, 2026. https://alion.io/company/glean/technologies