System Engineer / Application Engineer , System Development Group - Corporate Business Operation 2 Section , Corporate Business Operation Department , Group Sales Division (GSD)
Rakuten11 hours ago
Tokyo, JapanMid Level
Responsibilities
- Lead projects from requirements definition through system design, software development, acceptance testing, and troubleshooting.
- Develop and maintain external SIM management systems for MVNE/MVNO services.
- Develop and maintain billing and payment systems for MVNE/MVNO services.
- Manage outsourced system registration and changes for customer information, billing, and dunning.
- Manage outsourced system development, maintenance, and operations.
- Develop and maintain internal systems supporting Rakuten Mobile’s corporate business.
- Manage vendors and coordinate cross-functional activities to advance projects.
Requirements
- At least 3 years of experience in web application development and maintenance.
- Experience constructing servers and networks in the cloud.
- At least 3 years of work experience at a Japanese company.
- Native-level Japanese proficiency, or JLPT N1 or higher for non-Japanese nationals.
- TOEIC score of 600 or higher, or an equivalent qualification.
- A positive, challenge-oriented mindset and ability to adapt to change.
- Preferred: Fundamental Information Technology Engineer Examination certification.
- Preferred: Business-level English proficiency.
- Preferred: Knowledge of MVNO/MVNE business.
Benefits
- Work is primarily based at the Tokyo Futako Tamagawa Rise Office.
- Work from home is available up to once per week.
- Flexible working hours are available.
- Domestic and international business trips and transfers may be required.
- The role is primarily conducted in Japanese, except for some internal meetings and communication with technology teams.
Tech Stack
Categories
About Rakuten
Rakuten Group builds e-commerce marketplaces, financial services (credit cards, payments, banking, securities), and digital/communications offerings for consumers and merchants worldwide. It monetizes through transaction fees, financial services income, advertising, and mobile subscriptions; flagship businesses include Rakuten Ichiba, Rakuten Card, and Rakuten Mobile. Founded in 1997 and headquartered in Setagaya, Tokyo, the company is publicly listed on the Tokyo Stock Exchange and operates across many countries and regions.