Frontend Engineer
PayPay
No Japanese RequiredHybridBackend
Tokyo
Hybrid • Full-time
JavaScriptTypeScriptVue.jsReactAWS
Accepts Overseas Applications
Language Requirements Japanese: Business Level English: Basic Level
Tech Stack
JavaAWS
Description
About the Organization/Team
The assigned organization is primarily advancing projects related to a next-generation core banking system. Our in-house engineers take the lead in planning, designing, and even coding the core banking system and business logic from scratch. As it's a new organization, you can collectively help create the development rules and environment.
Job Responsibilities
- Development and operation of backend applications related to the new core banking system
- Designing and developing for both performance and stability to maintain high reliability as a financial platform
- Understanding and implementing how to utilize infrastructure to solve system challenges
- Designing architecture based on application requirements and selecting middleware, etc.
- Performance tuning, monitoring settings, and alert response for microservices
Attractiveness of This Position
- Gain experience from the design to the introduction of a next-generation core banking system
- Opportunity to collaboratively build a new organization and environment
- Acquire high-level planning and proposal capabilities through supporting top management's decision-making and high-level coordination with various departments and affiliated companies, including PayPay
- Gain frontline work experience in the industry at a company aiming to provide unprecedented financial services during a transformative period in the financial industry
- Ability to leverage PayPay's service and user base
Required Experience/Skills
- 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
- Japanese (Native or equivalent to JLPT N1 or N2 proficiency)
Desired Experience/Skills
- 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
- Experience with microservices
- English (Business level conversational proficiency)
Posted: 2026/01/03
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Company Information
PayPay
1001-2000 employees