Capital One tech stack
Capital One builds mostly with JavaScript, Python, TypeScript, Go. Its stack also includes AWS, Azure, React.js, Spring Boot. JavaScript is named in 6 of the 8 job postings Capital One published in the last 12 months (75%). Counted by Alion from the job postings of Capital One, updated Oct 1, 2026.
What programming languages does Capital One use?
JavaScript is named in 75% of job postings at Capital One, followed by Python (75%), TypeScript (75%), Go (63%).
C# Show all (11)
What frameworks and libraries does Capital One use?
React.js is named in 75% of job postings at Capital One, followed by Spring Boot (50%), Vue.js (38%), Angular (25%).
React.js
6 75%
Spring Boot
4 50%
Vue.js
3 38%
Angular
2 25%
MLX ML
2 25%
Django
2 25%
Express
1 13%
Jest
1 13%
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What databases does Capital One use?
Cassandra is named in 25% of job postings at Capital One, followed by DynamoDB (25%), MySQL (25%), PostgreSQL (25%).
Cassandra
2 25%
DynamoDB
2 25%
MySQL
2 25%
PostgreSQL
2 25%
Redis
2 25%
Snowflake
1 13%
OpenSearch
1 13%
What cloud and platforms does Capital One use?
AWS is named in 75% of job postings at Capital One, followed by Azure (75%), GCP (75%), Kubernetes (25%).
What developer tools does Capital One use?
Docker is named in 25% of job postings at Capital One, followed by GraphQL (25%), Jenkins (25%), Babel (13%).
Docker
2 25%
GraphQL
2 25%
Jenkins
2 25%
Babel
1 13%
Rest API
1 13%
Vite
1 13%
Webpack
1 13%
npm
1 13%
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What AI and ML technologies does Capital One use?
LLM is named in 25% of job postings at Capital One.
LLM
2 25%
Which engineering practices does Capital One ask for?
Machine Learning is named in 38% of job postings at Capital One, followed by AI Agents (13%), LLM Guardrails (13%), CI/CD (13%).
What does each Capital One team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
5 postingsHow does your stack fit Capital One?
How modern is the Capital One stack?
Capital One scores 81 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: 1; legacy ones: 0.
How common is the Capital One stack in its industry?
Share of the 350 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Capital One
Questions about the Capital One tech stack
What programming languages does Capital One use?
The languages named in Capital One job postings are JavaScript (75%), Python (75%), TypeScript (75%), Go (63%), Java (63%), as a share of the 8 postings of the last 12 months.
Does Capital One use React.js?
Yes. React.js is named in 6 of 8 job postings (75%) and required in 6 of them.
What cloud and platforms does Capital One use?
The cloud and platforms named in Capital One job postings are AWS (6), Azure (6), GCP (6) (postings in brackets).
What skills do you need for a Backend job at Capital One?
Backend postings at Capital One most often require AWS (5), React.js (5), Go (4), Java (4), out of 5 postings in the last 12 months.
Is the Capital One tech stack changing?
No new technology has appeared in Capital One job postings in the last six months.
How modern is the Capital One tech stack?
Capital One scores 81 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: 1; legacy ones: 0.
How does Alion know the Capital One tech stack?
Alion reads every job posting Capital One publishes and tags the technologies each one names. The figures on this page count the 8 postings of the last 12 months and were updated on Oct 1, 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, "Capital One tech stack: 55 technologies from 8 job postings", as of Oct 1, 2026. https://alion.io/company/capital-one/technologies