PayPay tech stack
PayPay builds mostly with Python, Java, JavaScript, SQL. Its stack also includes AWS, GitHub, DynamoDB, MySQL. AWS is named in 15 of the 24 job postings PayPay published in the last 12 months (63%). Counted by Alion from the job postings of PayPay, updated Sep 26, 2026.
What programming languages does PayPay use?
Python is named in 38% of job postings at PayPay, followed by Java (25%), JavaScript (25%), SQL (17%).
Python
9 38%
Java
6 25%
JavaScript
6 25%
SQL
4 17%
Kotlin
3 13%
Scala
3 13%
TypeScript
2 8%
Apex
1 4%
Show all (11)
What frameworks and libraries does PayPay use?
Dagster is named in 13% of job postings at PayPay, followed by JUnit (13%), Resilience4j (13%), Spring Boot (13%).
Dagster
3 13%
JUnit
3 13%
Resilience4j
3 13%
Spring Boot
3 13%
Hadoop
3 13%
Selenium
2 8%
Vue.js
2 8%
React.js
2 8%
Show all (18)
What databases does PayPay use?
DynamoDB is named in 21% of job postings at PayPay, followed by MySQL (17%), Redis (17%), TiDB (8%).
DynamoDB
5 21%
MySQL
4 17%
Redis
4 17%
TiDB
2 8%
Google BigQuery
2 8%
Snowflake
2 8%
Amazon Aurora
1 4%
Delta Lake
1 4%
Show all (12)
What cloud and platforms does PayPay use?
AWS is named in 63% of job postings at PayPay, followed by GitHub (46%), Kubernetes (46%), Apache Kafka (29%).
AWS
15 63%
GitHub
11 46%
Kubernetes
11 46%
Apache Kafka
7 29%
GCP
5 21%
GitHub Actions
5 21%
Grafana
5 21%
Show all (30)
What developer tools does PayPay use?
Jenkins is named in 33% of job postings at PayPay, followed by ArgoCD (33%), Docker (29%), Terraform (25%).
Jenkins
8 33%
ArgoCD
8 33%
Docker
7 29%
Terraform
6 25%
Copilot
5 21%
Prometheus
5 21%
Flyway
4 17%
npm
4 17%
Show all (22)
What AI and ML technologies does PayPay use?
LLM is named in 25% of job postings at PayPay, followed by Gemini (21%), ChatGPT (17%).
Which engineering practices does PayPay ask for?
CI/CD is named in 21% of job postings at PayPay, followed by GitOps (13%), IAM (13%), Machine Learning (13%).
CI/CD
5 21%
GitOps
3 13%
Platform Engineering
2 8%
RAG
2 8%
Show all (13)
What does each PayPay team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
5 postingsDevOps
4 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 86 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 289 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 (38%), Java (25%), JavaScript (25%), SQL (17%), Kotlin (13%), as a share of the 24 postings of the last 12 months.
Does PayPay use Dagster?
Yes. Dagster is named in 3 of 24 job postings (13%) and required in 1 of them.
What cloud and platforms does PayPay use?
The cloud and platforms named in PayPay job postings are AWS (15), GitHub (11), Kubernetes (11) (postings in brackets).
What skills do you need for a Backend job at PayPay?
Backend postings at PayPay most often require Java (5), ChatGPT (4), Copilot (4), Gemini (4), out of 5 postings in the last 12 months.
Is the PayPay tech stack changing?
Yes. GitOps, Dagster, Prefect, DNS first appeared in PayPay job postings in the last six months.
How modern is the PayPay tech stack?
PayPay scores 86 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 24 postings of the last 12 months and were updated on Sep 26, 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: 109 technologies from 24 job postings", as of Sep 26, 2026. https://alion.io/company/paypay/technologies