795,742open jobs
50,860companies
125,050added this week
Browse all
Salary
≈ $37k – $79k per year (Estimated)
Location
In office (Tokyo)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 26, 2026. First seen by Alion on Jul 29, 2026.

Overview
Company
Impact
Profile match
Headquartered in Tokyo, Japan, Rakuten is a major global technology conglomerate that operates a diverse ecosystem of internet and digital services. The company is widely known for its massive e-commerce platforms, alongside a robust portfolio spanning financial technology and digital content. Furthermore, it has established itself as an innovative force in the telecommunications industry through the development of cloud-native mobile network infrastructure.

Job Description:

Business Overview

As part of Rakuten Group, Inc., we are entrusted with Rakuten Mobile business operations. Our division has entered the carrier business with innovative technology and advanced capabilities, and we continue to take on challenges to provide attractive services.

To create world-class, innovative services, we promote systems and environments where each individual can challenge their own potential to the fullest and expand their field of activity.

Department Overview

This department provides solutions centered on mobile services for corporate clients. You will join us as a core member to drive business expansion.

- Mobile services

- Fixed-line network services

- Contact center services

- IP phone services

- Rakuten Mobile MVNO business

- In-house developed services within the Rakuten Group

Technical Areas of Responsibility and Position Details

You will be responsible for driving and supporting the technical aspects of service development. You will promote the commercialization of solutions in collaboration with development departments within Rakuten Mobile. As a member of the business division, you will be in charge of service development while serving as a bridge engineer between business and development teams.

Position:

Position Details

- Consideration of service specifications and requirements definition

- Network technology research

- Communication with mobile technology teams

- Technical verification (PoC) support

Why This Position is Attractive

- We develop corporate business targeting all companies and industries across Japan, without limitations. You will have the opportunity to take on the challenge of building win-win relationships by combining Rakuten Mobile’s assets with your own strategic planning capabilities. Furthermore, creating synergies with various Rakuten Group services is a key mission, providing an environment where you can gain diverse insights through cross-group projects.

- Develop "Entrepreneurial" skills by driving the entire process from business planning to operation

Beyond mere project management, you will be involved in the entire lifecycle of business creation-from service development and operational structuring to sales planning. This is an environment where you can acquire practical skills to advance business, ranging from defining core issues to producing structured documentation.

- Take ownership as a "Core" player by leading diverse stakeholders

You will lead DX strategies and problem-solving by building consensus among a diverse range of stakeholders, including management, development, sales, and promotion teams. With opportunities such as weekly presentations to executive leadership, you will be deeply involved at the heart of the business. This is a highly rewarding role where you can drive the "entire service" with a strong sense of ownership, rather than just handling an isolated segment of the work.

Mandatory Qualifications:

- 3+ years of practical experience in the IT industry

- Basic knowledge of networks

- Work experience in IT infrastructure and a background as a technical engineer

- Ability to conduct business within Japan

- Experience working in Japan and holding a valid status of residence that allows for employment

- Business-level or higher Japanese proficiency (reading, writing, and fluent conversation)

- Ability to work from the office at least 4 days a week

Desired Qualifications:

- Work experience in communication infrastructure such as mobile, networks, or IP telephony

- Knowledge of security

- Experience in requirements definition

- Experience in project management

Ideal Candidate Profile

- Individuals who are eager to grow alongside our services.

- Individuals capable of building smooth and effective communication with diverse stakeholders.

#business

#strategyplanning

Languages:

English (Overall - 3 - Advanced)、 Japanese (Overall - 4 - Fluent)
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
795,742 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
Tokyo
$51k – $95k per year • In office • Tokyo
AI/ML
AI Agents
DevOps
DNS
Cybersecurity
PKI
Chips/EDA
PoC Library
Management
Slack
Google Workspace
Apply
Cryo Engineer (f/m/d) 2 months ago
Hybrid • Full-Time • 3+ years exp • Master's Degree
Apply
$44k – $50k per year • In office • Internship • Bachelor's Degree • Perrysburg
DevOps
Windows
Management
Microsoft Office
Apply
ModelOps Engineer 27 min ago
$98k – $163k per year • Hybrid • Top Secret • 7+ years exp • High School Diploma • Ashburn
Python
Java
Scala
Databases
PostgreSQL
Databricks
ElasticSearch
Apache Solr
AI/ML
Hadoop
Spark
Airflow
OpenCV
MLFlow
Computer Vision
Kubeflow
TensorFlow
Keras
PyTorch
Amazon SageMaker
Feature Store
Machine Learning
Frontend
GraphQL
DevOps
GCP
Prometheus
Azure
CI/CD
AWS
Docker
Kubernetes
Grafana
AWS Lambda
Analytics
ETL/ELT
Apply
In office • Top Secret • 5+ years exp • Bachelor's Degree
Management
Confluence
Jira
Google Workspace
SharePoint
Agile
Microsoft Office
Apply
$682k – $1.1M per year • In office • 2+ years exp
AI/ML
AI Agents
Red Teaming
DevOps
Terraform
GCP
Datadog
Azure
AWS
Kubernetes
Shift-Left
Amazon ECS
Cybersecurity
Burp Suite
SonarQube
Wiz
Zero Trust
Shift-Left Security
Threat Modeling
SIEM
Chips/EDA
PoC Library
Apply
$455k – $682k per year • In office • South Korea
AI/ML
LLM
DevOps
GCP
Azure
AWS
Chips/EDA
PoC Library
Apply
$409k – $610k per year • In office • Tokyo
AI/ML
Claude
Exa
Chips/EDA
PoC Library
Apply
$682k – $1M per year • In office • Tokyo
DevOps
GCP
AWS
Chips/EDA
PoC Library
Apply
$546k – $910k per year • In office • Tokyo
Python
JavaScript
Node JS
AI/ML
Claude
Frontend
Next.js
React.js
DevOps
GitHub Actions
AWS
Docker
GitHub
Chips/EDA
PoC Library
Apply
≈ $48k – $109k per year (Estimated) • In office • Full-Time • Tokyo
Java
Java
Spring Framework
Apply
≈ $41k – $88k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Tokyo
Python
Java
AI/ML
Semantic Search
DevOps
CI/CD
Jenkins
QA
Gatling
k6
Locust
Apply
≈ $41k – $88k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Tokyo
Apply
≈ $32k – $69k per year (Estimated) • In office • Full-Time • 3+ years exp • Tokyo
Java
Databases
Oracle
Apply
≈ $28k – $61k per year (Estimated) • In office • Full-Time • 1+ year exp • Master's Degree • Tokyo
Python
Go
Java
Go
Chi
Databases
Amazon Redshift
Analytics
Tableau
Power BI
MicroStrategy
Apply
In office • Internship • Tokyo
Apply
In office • Internship • Tokyo
Apply
In office • Internship • Tokyo
Apply
≈ $35k – $94k per year (Estimated) • In office • Full-Time • Tokyo
JavaScript
TypeScript
Dart
Node JS
Node JS
Prisma
Databases
MySQL
TiDB
AI/ML
Claude
Claude Code
Devin
Frontend
GraphQL
Next.js
React.js
tRPC
Mobile
Flutter
Firebase
DevOps
Rest API
GCP
GitHub Actions
CI/CD
AWS
Google Cloud Run
Management
Linear
Slack
Apply
See all jobs
This is one of many
795,742 more open roles from verified company boards, updated every day.