Job Description:
Business Overview
The Technology Platforms Division (TPD) is responsible for building and operating the infrastructure and ecosystem platforms which power the Rakuten Group. Our mission is to provide our Rakuten Cloud and Ecosystem Platforms which will deliver Core Value to accelerate the growth of Rakuten Group services.
Department Overview
The Membership Platform Department (MPD) is thinking big: we create scalable platforms that power the Rakuten Ecosystem worldwide. Are you interested in building the next generation of Internet services that reach hundreds of millions of users across the globe every day? In our department, you will join a global team of experienced technologists who build the foundation of our services.
Around the Rakuten ID system, we provide ID (buyer, seller), profile (address, credit card, mail, etc.), data management services, and a high-performance ID platform. We also provide related security services (weak password checking, password leakage checking, login alert, etc.) We developed and maintain the the mobile user ID service, merchant ID service, profile service (front-end), and similar.
Overall Position Details
The Service Enablement Group under the ID Core Platform Section is comprised of approximately 45+ members (PJM, PDM, Engineer), who will divide into several teams according to each project; a project team generally includes 1 PJM/PDM, 1 Tech Lead , and 2-10 engineers.
We seek a mid to senior level engineer with leadership capabilities to support the growing needs of the section. Your responsibilities will be as follows:
- Develop and maintain the Rakuten ID system and its applications, based on a Vert.X framework development.
- Develop and maintain the Rakuten JWT Token Lib (comprehensive Kotlin, Golang, etc).
- Participate in technical discussions and decision meetings to support the Rakuten ID product's functional design and technical route.
- As a "tech lead", lead a team of two/three engineers to complete product development to a high standard, and train team members to improve the quality of our code.
- Perform code review/design.
Work environment:
Development language: Kotlin(80%), Java(10%), Golang(5%), PHP(5%)
Framework: Vert.x(80%), Undertow(10%), Http4K(5%), YII(5%)
Servers: Rakuten cloud, GCP (Centos, CoreOS)
Infrastructure: K8S
Mandatory Qualifications:
- Experience with a modern, statically typed language, e.g. Java, C#, Kotlin, Scala, Haskell, C++17, Rust... (5 years +)
-An understanding of asynchronous programming models
- Experience developing libraries for wide use
- Experience with at least one FP language, such as Haskell or Scala
- Familiarity with the JVM, especially knowledge of inner workings
- Familiarity with authentication standards such as OAuth 2.0, OpenID Connect, WebAuthn
- An understanding of TCP Networking, HTTP and REST APIs
- An understanding of how Unix systems work
- An ability to learn fast, think critically, and evaluate technologies and solutions
- Independent, self-driven, quality-conscious, and a keen attention to detail
Desired Qualifications:
- History of opensource contributions
- Experience with Cloud Native deployment (Docker, Kubernetes, Istio)
- Experience with Microservices
- Experience with Kotlin, especially Kotlin Coroutines
Other Details
- Work Location: Tokyo
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