PayPay tech stack
PayPay builds mostly with Python, Java, JavaScript, SQL. Its stack also includes AWS, Kubernetes, MySQL, DynamoDB. AWS is named in 16 of the 28 job postings PayPay published in the last 12 months (57%). Counted by Alion from the job postings of PayPay, updated Nov 11, 2026.
What programming languages does PayPay use?
Python is named in 43% of job postings at PayPay, followed by Java (29%), JavaScript (25%), SQL (21%).
Python
12 43%
Java
8 29%
JavaScript
7 25%
SQL
6 21%
Kotlin
3 11%
Scala
3 11%
TypeScript
3 11%
C#
2 7%
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What frameworks and libraries does PayPay use?
Selenium is named in 14% of job postings at PayPay, followed by Dagster (14%), Appium (11%), Rest-Assured (11%).
Selenium
4 14%
Dagster
4 14%
Appium
3 11%
Rest-Assured
3 11%
Vue.js
3 11%
Spring Boot
3 11%
JUnit
3 11%
React.js
3 11%
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What databases does PayPay use?
MySQL is named in 18% of job postings at PayPay, followed by DynamoDB (18%), Redis (14%), Snowflake (11%).
MySQL
5 18%
DynamoDB
5 18%
Redis
4 14%
Snowflake
3 11%
Delta Lake
2 7%
TiDB
2 7%
Google BigQuery
2 7%
Amazon Aurora
1 4%
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What cloud and platforms does PayPay use?
AWS is named in 57% of job postings at PayPay, followed by Kubernetes (46%), GitHub (43%), Apache Kafka (29%).
AWS
16 57%
Kubernetes
13 46%
GitHub
12 43%
Apache Kafka
8 29%
GCP
6 21%
GitHub Actions
6 21%
Spark
6 21%
Databricks
5 18%
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What developer tools does PayPay use?
Jenkins is named in 36% of job postings at PayPay, followed by Docker (36%), Terraform (29%), ArgoCD (29%).
Jenkins
10 36%
Docker
10 36%
Terraform
8 29%
ArgoCD
8 29%
Prometheus
5 18%
npm
5 18%
Copilot
4 14%
Flyway
4 14%
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What AI and ML technologies does PayPay use?
LLM is named in 36% of job postings at PayPay, followed by Gemini (14%), ChatGPT (11%).
Which engineering practices does PayPay ask for?
CI/CD is named in 29% of job postings at PayPay, followed by RAG (11%), GitOps (11%), IAM (11%).
CI/CD
8 29%
RAG
3 11%
GitOps
3 11%
Platform Engineering
2 7%
AI Agents
1 4%
Show all (14)
What does each PayPay team work with?
The technologies each team's postings require most often, with the number of postings that require them.
QA
4 postingsBackend
4 postingsDevOps
3 postingsData Science
3 postingsFrontend
3 postingsHow does your stack fit PayPay?
How is the PayPay 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 PayPay stack?
PayPay scores 87 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: 3; legacy ones: 0.
How common is the PayPay stack in its industry?
Share of the 761 companies in the same industries, whose stack Alion knows, that use each technology.
What sets PayPay apart
Companies with a stack like PayPay
Questions about the PayPay tech stack
What programming languages does PayPay use?
The languages named in PayPay job postings are Python (43%), Java (29%), JavaScript (25%), SQL (21%), Kotlin (11%), as a share of the 28 postings of the last 12 months.
Does PayPay use Selenium?
Yes. Selenium is named in 4 of 28 job postings (14%) and required in 4 of them.
What cloud and platforms does PayPay use?
The cloud and platforms named in PayPay job postings are AWS (16), Kubernetes (13), GitHub (12) (postings in brackets).
What skills do you need for a QA job at PayPay?
QA postings at PayPay most often require Jenkins (4), Selenium (4), Appium (3), Bitrise (3), out of 4 postings in the last 12 months.
Is the PayPay tech stack changing?
Yes. TestRail, Airflow, Delta Lake, pySpark first appeared in PayPay job postings in the last six months.
How modern is the PayPay tech stack?
PayPay scores 87 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: 3; legacy ones: 0.
How does Alion know the PayPay tech stack?
Alion reads every job posting PayPay publishes and tags the technologies each one names. The figures on this page count the 28 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, "PayPay tech stack: 114 technologies from 28 job postings", as of Nov 11, 2026. https://alion.io/company/paypay/technologies