Description
:About Organization
Rakuten Mobile launched its Mobile Virtual Network Operator (MVNO) service in 2014 and has since achieved a leading market share. The Rakuten Group has also successfully launched our Mobile Network Operator (MNO) business as the fourth mobile network carrier in Japan. Our next challenge is to expand the business and make a more significant impact on the market.
We are looking to hire professionals who are eager to seize this incredible opportunity, which promises to have a profound impact on society with our dynamic, innovative service. We invite you to join us in embracing this new challenge together.
Job Duties:
- Collaborate closely with business stakeholders to understand their needs, with the aim of defining clear product requirements and solutions.
- Develop architectural and design principles that enhance the performance, capacity, and scalability of the product.
- Oversee the product roadmap and maintain architectural standards to ensure that product development projects are in optimal alignment with business objectives.
- Conceptualize, prepare, and review High-Level Designs (HLD), as well as author comprehensive Product Specifications.
- Facilitate effective communication of conceptual ideas and design rationale, working in tandem with product management and development teams to support solution engineering efforts.
Minimum Qualifications:
- Minimum of 5 years of experience in software development, with a focus on backend systems.
- At least 3 years of experience in programming with Java, C, or C++.
- Minimum of 3 years of experience working with microservices and backend system development.
- Over 1 year of experience with storage solutions (file, object, block).
- At least 1 year of experience in developing RESTful APIs.
- Minimum of 1 year of experience with Docker.
- Proficiency in SQL & NoSQL databases.
- Capability to design solutions end-to-end independently.
- Willingness and ability to learn and adapt to new technologies.
- Experience in Reactive Programming.
- Experience with messaging queues, preferably Kafka.
- Experience in designing APIs for bulk requests.
- Familiarity with web, cloud, and open systems.
- Proficiency with REST APIs and JSON.
- Experience developing for Kubernetes is preferred.
- Knowledge of mobile network architecture is a plus.
- Understanding of services such as email, cloud storage, and mobile apps is desirable.
- Familiarity with Open ID Connect and OAuth2.0 standards is advantageous.
- Understanding of design principles for enhancing performance, capacity, and scalability of products.
- Experience with user models, workflows, user interfaces, and UX is beneficial.
- Good organizational and time management skills.
- Business-level communication skills in English.
Preferred Qualifications:
- Strong team spirit and communication skills to collaborate effectively with various stakeholders.
- Good time-management skills.
- Self-starter, capable of working independently.
- Intermediate proficiency in Japanese for both conversation and literacy.
- Knowledge of Billing Support Systems (BSS) and Operational Support Systems (OSS) is preferred.
Languages: English (Overall - 3 - Advanced), Japanese (Overall - 3 - Advanced)
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