American Express tech stack
American Express builds mostly with Python, SQL, JavaScript, Java. Its stack also includes GCP, AWS, React.js, PostgreSQL. Python is named in 265 of the 438 job postings American Express published in the last 12 months (61%). Counted by Alion from the job postings of American Express, updated Sep 27, 2026.
What programming languages does American Express use?
Python is named in 61% of job postings at American Express, followed by SQL (38%), JavaScript (20%), Java (19%).
Python
265 61%
SQL
166 38%
JavaScript
87 20%
Java
83 19%
TypeScript
67 15%
Go
66 15%
Kotlin
35 8%
C#
26 6%
Show all (24)
What frameworks and libraries does American Express use?
React.js is named in 8% of job postings at American Express, followed by LangChain (5%), PyTorch (4%), TensorFlow (4%).
React.js
37 8%
LangChain
20 5%
PyTorch
18 4%
TensorFlow
17 4%
Spring Boot
17 4%
LangGraph
15 3%
Vert.x
11 3%
LlamaIndex
10 2%
Show all (64)
And 24 more, each named in fewer postings.
What databases does American Express use?
PostgreSQL is named in 8% of job postings at American Express, followed by Google BigQuery (7%), Cassandra (6%), Couchbase (6%).
PostgreSQL
33 8%
Google BigQuery
32 7%
Cassandra
28 6%
Couchbase
25 6%
Redis
21 5%
BigQuery
18 4%
Oracle
13 3%
Db2
12 3%
Show all (28)
What cloud and platforms does American Express use?
GCP is named in 22% of job postings at American Express, followed by AWS (19%), Kubernetes (18%), Apache Kafka (16%).
GCP
96 22%
AWS
83 19%
Kubernetes
80 18%
Apache Kafka
70 16%
Power BI
61 14%
Tableau
54 12%
Spark
35 8%
Azure
31 7%
Show all (67)
And 27 more, each named in fewer postings.
What developer tools does American Express use?
Rest API is named in 13% of job postings at American Express, followed by Git (9%), gRPC (9%), Docker (8%).
Rest API
58 13%
Git
39 9%
gRPC
39 9%
Docker
33 8%
Jenkins
27 6%
Copilot
25 6%
pySpark
13 3%
Show all (65)
And 25 more, each named in fewer postings.
What AI and ML technologies does American Express use?
LLM is named in 23% of job postings at American Express, followed by BERT (5%), ChatGPT (4%), Claude (2%).
Which engineering practices does American Express ask for?
AI Agents is named in 40% of job postings at American Express, followed by Machine Learning (29%), CI/CD (26%), RAG (20%).
AI Agents
175 40%
CI/CD
112 26%
RAG
88 20%
Prompt Engineering
68 16%
Embeddings
53 12%
Function Calling
40 9%
Show all (57)
And 17 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.
Backend
88 postingsAnalytics
85 postingsAI/ML
66 postingsFinance
33 postingsProduct
32 postingsEarly Careers
29 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 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: 5; legacy ones: 1.
How common is the American Express stack in its industry?
Share of the 574 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 (61%), SQL (38%), JavaScript (20%), Java (19%), TypeScript (15%), as a share of the 438 postings of the last 12 months.
Does American Express use React.js?
Yes. React.js is named in 37 of 438 job postings (8%) and required in 24 of them.
What cloud and platforms does American Express use?
The cloud and platforms named in American Express job postings are GCP (96), AWS (83), Kubernetes (80) (postings in brackets).
What skills do you need for a Backend job at American Express?
Backend postings at American Express most often require Python (50), JavaScript (40), Java (32), Go (29), out of 88 postings in the last 12 months.
Is the American Express tech stack changing?
Yes. LLM Evaluation, Vercel AI SDK, Apex, Rest-Assured first appeared in American Express job postings in the last six months.
How modern is the American Express tech stack?
American Express 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: 5; 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 438 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, "American Express tech stack: 311 technologies from 438 job postings", as of Sep 27, 2026. https://alion.io/company/american-express/technologies