Backend Engineer / バックエンドエンジニア (Core Banking System)

PayPay · Hybrid

Posted about 3 months ago

or apply directly on PayPay's site. We never take the application ourselves.

Is this posting real?

This role has been open: 82 days
Reposted: No
Salary listed: No
Ghost-job risk at PayPay: high
Hiring momentum: 91 roles opened in the last 90 days
Last confirmed on the employer's board: 2026-10-25

Measured from postings appearing on and disappearing from PayPay's own greenhouse board since 2026-08-03. Full hiring picture for PayPay.

About this role

As a Backend Engineer at PayPay, you will be responsible for designing and developing a highly reliable financial infrastructure that supports the PayPay Group's services. Your role will involve backend development, system architecture design, and continuous improvement of microservices, all while ensuring high performance and stability. You will also have the opportunity to participate in technology selection and contribute to the development culture in a new organization.

Our read on this posting2.4out of 5

benefits: 2/5
freshness: 1/5
career value: 4/5
role clarity: 5/5
pay transparency: 0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of PayPay as an employer.

What you need

3-5 years of backend development experience
Practical experience in C or Java
Excellent skills in other common programming languages
Understanding of data structures, algorithms, and the basics of object-oriented programming
Schema design in DB (RDB, NoSQL, etc.) and efficient query creation
Experience in web application development and tuning, and development with security considerations

Nice to have

Development experience in the financial industry
Experience implementing platform components such as RESTful API, Pub/Sub systems, database clients
Development experience using AWS services
Experience in system design, developing applications/web products handling large transactions, and applications/web products requiring scalability
Development experience in both C and Java

What you get

Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
401K
Translation/Interpretation support
VISA sponsor + Relocation support

Worth weighing

No salary listed
The role involves working with legacy systems and modernization efforts
Expectations to work in the office as per organizational guidelines despite hybrid workstyle

Summarised from PayPay's posting. Read the full original.

Listed by PayPay on their greenhouse job board, last confirmed open on 2026-10-25. PitchMeAI is not the employer.

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