American Express tech stack
American Express builds mostly with Python, SQL, Java, JavaScript. Its stack also includes GCP, Kubernetes, PostgreSQL, React.js. Python is named in 430 of the 769 job postings American Express published in the last 12 months (56%). Counted by Alion from the job postings of American Express, updated Nov 11, 2026.
What programming languages does American Express use?
Python is named in 56% of job postings at American Express, followed by SQL (38%), Java (20%), JavaScript (17%).
Python
430 56%
SQL
295 38%
Java
153 20%
JavaScript
131 17%
TypeScript
101 13%
Go
79 10%
PowerShell
44 6%
Kotlin
42 5%
Show all (25)
What frameworks and libraries does American Express use?
React.js is named in 9% of job postings at American Express, followed by Spring Boot (5%), LangChain (5%), LangGraph (4%).
React.js
66 9%
Spring Boot
41 5%
LangChain
38 5%
LangGraph
29 4%
PyTorch
25 3%
TensorFlow
25 3%
Vert.x
21 3%
LlamaIndex
18 2%
Show all (84)
And 44 more, each named in fewer postings.
What databases does American Express use?
PostgreSQL is named in 9% of job postings at American Express, followed by Cassandra (7%), Google BigQuery (7%), Couchbase (5%).
PostgreSQL
71 9%
Cassandra
52 7%
Google BigQuery
51 7%
Couchbase
42 5%
Redis
35 5%
MySQL
29 4%
Db2
22 3%
Oracle
22 3%
Show all (33)
What cloud and platforms does American Express use?
GCP is named in 23% of job postings at American Express, followed by Kubernetes (18%), AWS (18%), Apache Kafka (14%).
GCP
174 23%
Kubernetes
138 18%
AWS
135 18%
Apache Kafka
106 14%
Power BI
104 14%
Tableau
97 13%
Azure
70 9%
Spark
60 8%
Show all (84)
And 44 more, each named in fewer postings.
What developer tools does American Express use?
Rest API is named in 15% of job postings at American Express, followed by Docker (11%), Microsoft Excel (10%), Git (9%).
Rest API
115 15%
Docker
82 11%
Git
66 9%
Jenkins
64 8%
gRPC
53 7%
Copilot
46 6%
Prometheus
34 4%
Show all (86)
And 46 more, each named in fewer postings.
What AI and ML technologies does American Express use?
LLM is named in 19% of job postings at American Express, followed by ChatGPT (4%), BERT (4%), Claude (2%).
LCM 
Which engineering practices does American Express ask for?
AI Agents is named in 32% of job postings at American Express, followed by CI/CD (27%), Machine Learning (24%), RAG (18%).
AI Agents
244 32%
CI/CD
206 27%
RAG
136 18%
Prompt Engineering
112 15%
Embeddings
73 9%
Function Calling
66 9%
Show all (73)
And 33 more, each named in fewer postings.
What other technologies does American Express use?
VSAM is named in <1% of job postings at American Express.
What does each American Express team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Analytics
176 postingsBackend
134 postingsAI/ML
85 postingsProduct
63 postingsFinance
55 postingsSecurity
38 postingsHow does your stack fit American Express?
How is the American Express 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 American Express stack?
American Express scores 77 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: 6; legacy ones: 1.
How common is the American Express stack in its industry?
Share of the 2,248 companies in the same industries, whose stack Alion knows, that use each technology.
What sets American Express apart
Companies with a stack like American Express
Questions about the American Express tech stack
What programming languages does American Express use?
The languages named in American Express job postings are Python (56%), SQL (38%), Java (20%), JavaScript (17%), TypeScript (13%), as a share of the 769 postings of the last 12 months.
Does American Express use React.js?
Yes. React.js is named in 66 of 769 job postings (9%) and required in 48 of them.
What cloud and platforms does American Express use?
The cloud and platforms named in American Express job postings are GCP (174), Kubernetes (138), AWS (135) (postings in brackets).
What skills do you need for a Analytics job at American Express?
Analytics postings at American Express most often require SQL (104), Python (96), Tableau (44), Microsoft Excel (35), out of 176 postings in the last 12 months.
Is the American Express tech stack changing?
Yes. Apache Tomcat, Red Teaming, FastAPI, Flask first appeared in American Express job postings in the last six months.
How modern is the American Express tech stack?
American Express scores 77 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: 6; legacy ones: 1.
How does Alion know the American Express tech stack?
Alion reads every job posting American Express publishes and tags the technologies each one names. The figures on this page count the 769 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, "American Express tech stack: 392 technologies from 769 job postings", as of Nov 11, 2026. https://alion.io/company/american-express/technologies