Backend Engineer

※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.

As a Backend Engineer, you will be collaborating with engineers, designers and QAs, and working in an environment where you can be one of the founding members to build up a new organization within PayPay Securities.

Highlights of the opportunity:
- Be part of the team to build up a new organization and environment
- Develop skills in making business plans from a high perspective, through the high-level coordination with departments and affiliated companies within PayPay Group to support the top management’s decision
- Gain experience in a company that aiming to be the pioneer in the market to provide a brand new Mobile Securities services, which never had before during the era of Financial reformation
- Able to utilize PayPay’s services and user base

Responsibilities

- Develop and operate the Backend Application system for PayPay Securities product (PHP, Java, SpringBoot, Kotlin, MySQL/AuroraDB)

- Design large scale systems with high complexity to support our high throughput applications

- Understand how to leverage infrastructure for solving such large scale problems

- Develop tools and contribute to open source wherever possible

- Adopt problem solving as a way of life – always go to root cause!

Requirements

- 5+ years experience in developing Backend Application for company products

- Experience in using Java/PHP under professional environment, or if you are non-Java user, excellent skills in generalized programming languages, such as Scala, Python and Go.

- Interest and ability to learn other coding languages as needed.

- Experience with NoSQL databases and distributed cache.

- Strong fundamentals in data structures, algorithms and object oriented programming

- In-depth understanding of concurrency and distributed computing

- Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development

Nice to haves

While not specifically required, tell us if you have any of the following.

- Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients

- Experience with AWS services

- Experience in system design, development of web system which handles massive amount of transactions or requires scalability

- Experience with Microservices

- Experience in working for system development in securities, finance, or similar industries

- Experience in developing inhouse Product/Service