Rakuten tech stack
Rakuten builds mostly with Java, JavaScript, Python, TypeScript. Its stack also includes Kubernetes, AWS, React.js, Spring Boot. Java is named in 18 of the 31 job postings Rakuten published in the last 12 months (58%). Counted by Alion from the job postings of Rakuten, updated Nov 13, 2026.
What programming languages does Rakuten use?
Java is named in 58% of job postings at Rakuten, followed by JavaScript (32%), Python (29%), TypeScript (23%).
Java
18 58%
JavaScript
10 32%
Python
9 29%
TypeScript
7 23%
SQL
7 23%
Go
5 16%
Node JS
2 6%
PHP
2 6%
Show all (10)
What frameworks and libraries does Rakuten use?
React.js is named in 29% of job postings at Rakuten, followed by Spring Boot (26%), LangChain (13%), Hibernate (10%).
React.js
9 29%
Spring Boot
8 26%
LangChain
4 13%
Hibernate
3 10%
Angular
3 10%
Next.js
3 10%
LlamaIndex
3 10%
Cypress
2 6%
Show all (43)
And 3 more, each named in fewer postings.
What databases does Rakuten use?
MySQL is named in 19% of job postings at Rakuten, followed by Redis (10%), Google BigQuery (10%), PostgreSQL (6%).
MySQL
6 19%
Redis
3 10%
Google BigQuery
3 10%
PostgreSQL
2 6%
Amazon Aurora
1 3%
Amazon Redshift
1 3%
Delta Lake
1 3%
MariaDB
1 3%
Show all (14)
What cloud and platforms does Rakuten use?
Kubernetes is named in 58% of job postings at Rakuten, followed by AWS (42%), Azure (42%), GCP (39%).
Kubernetes
18 58%
AWS
13 42%
Azure
13 42%
GCP
12 39%
Grafana
8 26%
Datadog
5 16%
GitLab CI
4 13%
New Relic
3 10%
Show all (31)
What developer tools does Rakuten use?
Docker is named in 42% of job postings at Rakuten, followed by Jenkins (32%), Prometheus (29%), Git (23%).
Docker
13 42%
Jenkins
10 32%
Prometheus
9 29%
Git
7 23%
Rest API
6 19%
Cursor
6 19%
Terraform
5 16%
Maven
3 10%
Show all (29)
What AI and ML technologies does Rakuten use?
LLM is named in 23% of job postings at Rakuten, followed by Claude (16%), Gemini (3%).
Which engineering practices does Rakuten ask for?
CI/CD is named in 71% of job postings at Rakuten, followed by Fine-tuning (13%), FinOps (10%), Platform Engineering (10%).
CI/CD
22 71%
Fine-tuning
4 13%
FinOps
3 10%
Platform Engineering
3 10%
RAG
3 10%
Prompt Engineering
3 10%
Hallucination
2 6%
Show all (31)
What does each Rakuten team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
14 postingsDevOps
5 postingsHow does your stack fit Rakuten?
How is the Rakuten 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 Rakuten stack?
Rakuten scores 82 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 Rakuten stack in its industry?
Share of the 648 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Rakuten apart
Companies with a stack like Rakuten
Deutsche Telekom Digital Labs
135 shared technologies
Intercontinental Exchange
134 shared technologies
Tesco
120 shared technologies
U.S. Bank
135 shared technologies
Tekion
112 shared technologies
RemoteStar
115 shared technologies
Infor
124 shared technologies
London Stock Exchange Group
141 shared technologies
Questions about the Rakuten tech stack
What programming languages does Rakuten use?
The languages named in Rakuten job postings are Java (58%), JavaScript (32%), Python (29%), TypeScript (23%), SQL (23%), as a share of the 31 postings of the last 12 months.
Does Rakuten use React.js?
Yes. React.js is named in 9 of 31 job postings (29%) and required in 8 of them.
What cloud and platforms does Rakuten use?
The cloud and platforms named in Rakuten job postings are Kubernetes (18), AWS (13), Azure (13) (postings in brackets).
What skills do you need for a Backend job at Rakuten?
Backend postings at Rakuten most often require Java (10), Spring Boot (8), Kubernetes (6), React.js (6), out of 14 postings in the last 12 months.
Is the Rakuten tech stack changing?
Yes. LangGraph, PostgreSQL first appeared in Rakuten job postings in the last six months.
How modern is the Rakuten tech stack?
Rakuten scores 82 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 Rakuten tech stack?
Alion reads every job posting Rakuten publishes and tags the technologies each one names. The figures on this page count the 31 postings of the last 12 months and were updated on Nov 13, 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, "Rakuten tech stack: 161 technologies from 31 job postings", as of Nov 13, 2026. https://alion.io/company/rakuten/technologies