Site Reliability Engineer (Bilingual SRE)
PayPay
About PayPay/ PayPayについて
PayPay is a FinTech company that has grown to over 70M (as of July 2025) users since its launch in 2018. Our team is hugely diverse with members from over 50 different countries.
OUR VISION IS UNLIMITED_ We dare to believe that we do not need a clear vision to create a future beyond our imagination. PayPay will always stay true to our roots and realize a vision (future) that no one else can imagine by constantly taking risks and challenging ourselves. With this mindset, you will be presented with new and exciting opportunities on a daily basis and have the opportunity to grow and reach new dimensions that you could never have imagined. We are looking for people who can embrace this challenge, refresh the product at breakneck speed and promote PayPay with professionalism and passion.
※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.
2018年にサービスを開始してから約7年でユーザー数7000万人を突破したフィンテック企業であるPayPayは約50か国の国と地域から集まった多様なメンバーで構成されています。
OUR VISION IS UNLIMITED_ 我々は自分たちの想像を超える未来を創るためにあえて明確なビジョンは必要ないと考えています。常にDay1であるスタンスを忘れずに、誰もが想像できないようなビジョン(未来)を実現していくのがPayPayです。
この壮大なビジョンに前向きに取り組み、他社に真似できない圧倒的なスピードでプロダクトを磨き上げ、日本のキャッシュレス決済、またそれを使用した金融ライフプラットフォームとしての普及を一気に推進することにプロフェッショナルとして情熱を持って取り組み、自ら課題発見し、周囲と協力して新しい価値創出を共に推進する仲間を募集します。
※ PayPay株式会社へご応募いただく際にはPayPayカード株式会社、PayPay証券株式会社へ併願応募はご遠慮いただいております。ご了承ください。
Job Description/ 業務について
At PayPay, we’re constantly working on improving our systems and processes to support PayPay’s exponential growth. As an SRE at PayPay, we strive towards ensuring high availability and top-level performance so that our users can have flawless and reliable service exceeding expectations.
Considering PayPay’s growth, we are looking for experienced SREs who can deliver insights into system bottlenecks and ensure system reliability and scalability, while increasing the number of services that our company offers.
We are looking for individuals who can bring informed and unique viewpoints, enjoy collaborating with a cross-functional team and are actively pushing boundaries to develop reliable and scalable solutions and positive user experiences.
PayPayでは、急速な成長を支えるためにシステムやプロセスの改善に日々取り組んでいます。SREとしてユーザーの期待を超える安定した信頼性の高いサービスを提供できるよう、ハイアベイラビリティと最高レベルのパフォーマンスを確保することを目指しています。
PayPayの成長を踏まえ、システムのボトルネックを分析し、信頼性とスケーラビリティを確保しながらサービスの提供を拡大できる経験豊富なSREを募集しています。
確かな知見と独自の視点を持ち、部門横断的に様々なチームと協力しながら、信頼性と拡張性のあるソリューションやより良いユーザー体験を創出するために積極的に挑戦できる方を求めています。
Key Responsibilities
- Analyze current technologies used in the company and develop monitoring and notification tools to improve observability and visibility.
- Ensure system stability by pre-emptively verifying failure scenarios and implement solutions to reduce MTTR
- Develop solutions to improve system performance with a focus on high availability, scalability and resilience
- Integrate telemetry and alerting platforms to track and improve reliability of systems
- Implement industry best practices for system development, configuration management and system deployment
- Ensure seamless flow of information between teams by documenting knowledge gained
- Be up to date on modern technologies and trends to advocate for inclusion within products if they add value
- Participate in incident management including troubleshooting production issues, driving root cause analysis (RCA) and actively sharing lessons learned to improve system reliability and internal knowledge.
業務内容
- 社内で使用されている技術を分析し、可観測性と可視性を高める監視・通知ツールを開発する。
- 障害シナリオを事前に検証し、MTTRを短縮するためのソリューションを実装してシステムの安定性を確保する。
- ハイアベイラビリティ・スケーラビリティ・レジリエンスに焦点を当てたシステム性能向上のためのソリューションを開発する。
- テレメトリーやアラートプラットフォームを統合し、システムの信頼性を追跡・改善する。
- システム開発、構成管理、デプロイにおける業界のベストプラクティスを実装する。
- あらゆる知識を文書化し、チーム間で円滑に情報を共有する。
- 最新の技術やトレンドを把握し、製品に価値をもたらす場合には導入を提案する。
- インシデント管理に参加し、障害対応、根本原因分析(RCA)、学習内容の共有を通じて信頼性とナレッジを向上させる。
Qualifications
- Experience troubleshooting, tuning high performance microservice architectures running on Kubernetes and AWS in highly available production environments.
- 5+ years experience in software development in Python, Java, Go, etc with strong fundamentals in data structures, algorithms, problem solving and complexity analysis.
- Curious and proactive in finding performance bottlenecks, scalability and resilience problem areas and addressing them.
- Experience with observability tools and gathering data.
- Database knowledge such as RDS, NoSQL, distributed TiDB, etc.
- Excellent communication skills, collaborative and getting things done attitude.
- Enjoy taking up a challenge and driving it to conclusion.
- Ability to verbally communicate in both English and Japanese.
必要な経験/スキル
- KubernetesとAWS上で稼働するマイクロサービスアーキテクチャのトラブルシューティングやチューニングの経験。
- Python, Java, Goなどを用いた5年以上のソフトウェア開発経験があり、データ構造、アルゴリズム、問題解決、複雑性分析の強力な基礎知識を持っていること。
- 選考過程でコーディングチャレンジがあります。
- パフォーマンスボトルネックやスケーラビリティ、レジリエンスの課題を発見し解決する積極性。
- 監視ツールやデータ収集の経験。
- RDS、NoSQL、分散型TiDBなどのデータベース知識。
- 優れたコミュニケーションスキルと協調性、実行力。
- 挑戦を楽しみ最後までやり遂げる姿勢。
- 英語および日本語での口頭によるコミュニケーション能力。
Preferred Qualifications
- Container image management and optimization.
- Experience in large distributed system architecture and capacity planning.
- Understanding of IaC, automation tools, terraform, cloud formation, etc.
- Background in SRE/DevOps concepts and implementation.
- Experience in managing monitoring tools like CloudWatch, VictoriaMetrics, Prometheus and reporting with Snowflake and Sigma.
- In depth knowledge of web technologies such as CloudFront, Nginx, etc.
- Experience in designing, implementing or maintaining disaster recovery strategies and multi-region architecture to ensure high availability, resilience, and business continuity across critical systems.
- Business proficiency level in both English and Japanese.
あると望ましい経験/スキル
- コンテナイメージ管理と最適化の経験。
- 大規模分散システムのアーキテクチャ設計やキャパシティプランニングの経験。
- IaC、Terraform、CloudFormationなどの自動化ツールの理解。
- SRE/DevOpsの概念や実装経験。
- CloudWatch、VictoriaMetrics、Prometheusなどの監視ツール運用経験、SnowflakeやSigmaでのレポーティング経験。
- CloudFront、NginxなどのWeb技術の深い知識。
- 重要なシステム全体でハイアベイラビリティ、レジリエンス、ビジネス継続性を確保するための災害復旧戦略およびマルチリージョンアーキテクチャの設計、実装、または運用経験。
- ビジネスレベルの日本語力と英語力。
PayPay 5 senses
- Please refer [PayPay 5 senses]( to learn what we value at work.
Working Conditions
#### Employment Status
- Full Time
- Hybrid Workstyle
- [LIFE in JAPAN FACTBOOK](
#### Work Hours
- Super Flex Time (No Core Time)
- In principle, 9:00am-5:45pm + 1h break (actual working hours: 7h45m + 1h break)
- Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days
- Annual leave (up to 14 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
- Personal leave (5 days each year, granted proportionally according to the month of employment)
#### Salary
- Annual salary paid in 12 installments (monthly)
- Based on skills, experience, and abilities
- Reviewed once a year
- Late overtime allowance
#### Benefits
- Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
- 401K
- Translation/Interpretation support
- VISA sponsor + Relocation support
待遇・条件
#### 雇用形態
- 正社員
- Hybrid Workstyle
#### 勤務時間
- スーパーフレックス制(コアタイム無し)
- 原則:午前9時~午後5時45分(実働7時間45分+休憩時間 1時間)
- 土日祝日、年末年始および会社指定日
- 年次有給休暇(初年度14日間、入社月に応じて按分付与。入社日から使用可)
- パーソナル休暇(毎年度5日間付与/初年度入社月により3日間もしくは5日間付与)
#### 給与
- 年俸制(一部固定残業代含む)
- 経験、スキル、業績、貢献度に応じ当社規定により決定
- 毎年1回見直し
- 時間外勤務手当、深夜勤務手当有
#### ベネフィット
- 社会保険(健康保険、厚生年金、雇用保険、労災保険)
- 企業型確定拠出年金制度
- 語学学習のサポート
- [PayPay Inside-Out (Corporate Blog) /JP](
- [PayPay Inside-out (Corporate Blog) /ENG](
- [PayPay Product Blog /JP](
- [PayPay Product Blog /ENG](
- [PIVOT動画:【PayPayが仕掛ける金融革命】](
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