Site Reliability Engineer (Bilingual SRE)
Japanese fintech company operating the PayPay mobile payments service.
Maintainer signals as of 9/2/2026
About PayPay Corporation
PayPay Corporation develops and provides electronic payment services, including the PayPay mobile payment platform. It was founded on June 15, 2018, is headquartered in Tokyo, Japan, and currently operates an active financial-services platform integrating payments with card, banking, securities, and insurance offerings.
Skills
About the Role
Improve the reliability, availability, scalability, resilience, and performance of production systems by developing monitoring and notification tooling, integrating telemetry and alerting platforms, investigating bottlenecks, verifying failure scenarios, and participating in incident response and root-cause analysis.
Requirements
- Experience troubleshooting and tuning high-performance microservice architectures running on Kubernetes and AWS in highly available production environments.
- At least 5 years of software development experience with Python, Java, Go, or similar languages.
- Strong knowledge of data structures, algorithms, problem-solving, and complexity analysis.
- Experience identifying and addressing performance, scalability, and resilience bottlenecks.
- Experience with observability tools and data collection.
- Database knowledge including RDS, NoSQL, and distributed TiDB.
- Ability to communicate verbally in both English and Japanese.
Responsibilities
- Analyze current technologies and develop monitoring and notification tools to improve observability and visibility.
- Verify failure scenarios proactively and implement solutions to reduce MTTR.
- Develop solutions that improve system performance, availability, scalability, and resilience.
- Integrate telemetry and alerting platforms to track and improve system reliability.
- Implement industry best practices for system development, configuration management, and deployment.
- Document knowledge and enable information sharing between teams.
- Evaluate modern technologies and advocate for their inclusion when they add product value.
- Participate in incident management, troubleshoot production issues, drive root-cause analysis, and share lessons learned.
Benefits
- Social insurance, including health insurance, employee pension, employment insurance, and compensation insurance.
- 401K.
- Translation and interpretation support.
- Visa sponsorship and relocation support.
- Super flex time with no core hours.
- Annual leave of up to 14 days in the first year.
- Five personal leave days each year.
Hiring Process
Coding challenge during the selection process.