EXL tech stack
EXL builds mostly with Python, SQL, JavaScript, Java. Its stack also includes AWS, Azure, Snowflake, LangChain. Python is named in 280 of the 612 job postings EXL published in the last 12 months (46%). Counted by Alion from the job postings of EXL, updated Nov 13, 2026.
What programming languages does EXL use?
Python is named in 46% of job postings at EXL, followed by SQL (44%), JavaScript (7%), Java (4%).
Python
280 46%
SQL
267 44%
JavaScript
44 7%
Java
27 4%
TypeScript
22 4%
C#
18 3%
SAS
16 3%
Node JS
13 2%
Show all (19)
What frameworks and libraries does EXL use?
LangChain is named in 9% of job postings at EXL, followed by PyTorch (4%), TensorFlow (4%), LlamaIndex (4%).
LangChain
58 9%
PyTorch
25 4%
TensorFlow
25 4%
LlamaIndex
23 4%
LangGraph
22 4%
FastAPI
21 3%
Scikit-learn
21 3%
AutoGen
18 3%
Show all (88)
And 48 more, each named in fewer postings.
What databases does EXL use?
Snowflake is named in 17% of job postings at EXL, followed by Delta Lake (5%), Amazon Redshift (5%), PostgreSQL (4%).
Snowflake
106 17%
Delta Lake
33 5%
Amazon Redshift
28 5%
PostgreSQL
27 4%
Pinecone
22 4%
Google BigQuery
22 4%
MS SQL
15 2%
Azure SQL Database
11 2%
Show all (30)
What cloud and platforms does EXL use?
AWS is named in 34% of job postings at EXL, followed by Azure (31%), GCP (20%), Databricks (19%).
AWS
210 34%
Azure
188 31%
GCP
125 20%
Databricks
114 19%
Spark
108 18%
Power BI
99 16%
Tableau
65 11%
Show all (92)
And 52 more, each named in fewer postings.
What developer tools does EXL use?
pySpark is named in 12% of job postings at EXL, followed by Git (11%), Microsoft Excel (10%), Rest API (8%).
pySpark
75 12%
Git
67 11%
Rest API
46 8%
Jenkins
40 7%
Docker
39 6%
Terraform
35 6%
Show all (66)
And 26 more, each named in fewer postings.
What AI and ML technologies does EXL use?
LLM is named in 17% of job postings at EXL, followed by Claude (5%), Gemini (2%), GPT-4 (1%).
Show all (11)
Which engineering practices does EXL ask for?
CI/CD is named in 27% of job postings at EXL, followed by ETL/ELT (22%), Machine Learning (17%), AI Agents (14%).
CI/CD
163 27%
AI Agents
88 14%
RAG
84 14%
Prompt Engineering
53 9%
Fine-tuning
39 6%
NLP
38 6%
Show all (71)
And 31 more, each named in fewer postings.
What does each EXL team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Data Science
146 postingsAnalytics
87 postingsFinance
66 postingsAI/ML
59 postingsBackend
38 postingsDevOps
31 postingsHow does your stack fit EXL?
How much does EXL pay by technology?
Median stated pay of the postings that name each technology, against the median of all EXL postings with stated pay: $116k across 100 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| SQL | 41 | $135k | +16% |
| Python | 35 | $140k | +21% |
| Azure | 22 | $120k | +3% |
| AWS | 19 | $140k | +21% |
| Databricks | 13 | $125k | +8% |
| Spark | 13 | $99k | −15% |
| Tableau | 12 | $130k | +12% |
| Power BI | 12 | $123k | +6% |
| LLM | 11 | $135k | +16% |
| Snowflake | 10 | $138k | +19% |
How is the EXL 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 EXL stack?
EXL 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: 11; legacy ones: 1.
How common is the EXL stack in its industry?
Share of the 2,332 companies in the same industries, whose stack Alion knows, that use each technology.
What sets EXL apart
Companies with a stack like EXL
Questions about the EXL tech stack
What programming languages does EXL use?
The languages named in EXL job postings are Python (46%), SQL (44%), JavaScript (7%), Java (4%), TypeScript (4%), as a share of the 612 postings of the last 12 months.
Does EXL use LangChain?
Yes. LangChain is named in 58 of 612 job postings (9%) and required in 47 of them.
What cloud and platforms does EXL use?
The cloud and platforms named in EXL job postings are AWS (210), Azure (188), GCP (125) (postings in brackets).
What skills do you need for a Data Science job at EXL?
Data Science postings at EXL most often require SQL (96), Python (78), AWS (55), Spark (52), out of 146 postings in the last 12 months.
Is the EXL tech stack changing?
Yes. Digital Twin, Blue-Green Deployment, Perl, AppsFlyer SDK first appeared in EXL job postings in the last six months.
How modern is the EXL tech stack?
EXL 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: 11; legacy ones: 1.
How does Alion know the EXL tech stack?
Alion reads every job posting EXL publishes and tags the technologies each one names. The figures on this page count the 612 postings of the last 12 months and were updated on Nov 13, 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, "EXL tech stack: 377 technologies from 612 job postings", as of Nov 13, 2026. https://alion.io/company/exl/technologies