About PayPay

Job Description

We are looking for a web frontend engineer to join PayPay. You will be building features that change how people in Japan use and manage their finances and business. As a fast-paced company leading the payments industry, we need our engineers to be versatile and enthusiastic to take on new challenges in order to stay at the forefront.

Responsibilities

• Work with Product Managers, Designers and various tech teams to implement features.
• Contribute to the team by sharing knowledge, participating in code reviews, and providing feedback to uphold and ensure best practices.
• Triage, debug, and resolve product issues.

Tech Stack

｜TypeScript, JavaScript, HTML/CSS
｜Vue.js, React, NestJS, Express.js, single-spa
｜Docker, Kubernetes, ArgoCD, AWS, GH Actions, Terraform, Gatling
｜GitHub, npm/yarn, Jenkins, Webpack, Jest, i18n, Storybook
｜Sentry, Kibana, Google Analytics, Firebase, NewRelic
｜Figma, PlantUML, draw.io
｜Slack, Zoom, Confluence, Jira

Required Qualifications

• At least 5 years of industry experience developing secure web frontend applications in JavaScript and/or other transpile-to-JavaScript languages.
• At least 1 year of industry experience with VueJS (preferred), or React.
• Software engineering best practices and computer science knowledge.
• Business level of English.

Additional Qualifications

• Experience with frontend performance monitoring and optimization.
• Experience with iOS or Android development, either with the native toolkits or with a framework such as React Native.
• Experience with designing server side RESTful APIs.
• Experience with web hosting infrastructure such as CDNs.

PayPay 5 senses

• Please refer PayPay 5 senses to learn what we value at work.

Working Conditions 

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)
  ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.
• LIFE in JAPAN FACTBOOK

Work Hours

• Super Flex Time (No Core Time)
• In principle, 9:00am-5:45pm (actual working hours: 7h45m + 1h break)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• 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)
  ＊PayPay's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed once a year
• Special Incentive once a year *Based on company performance and individual contribution and evaluation
• Late overtime allowance
  
  ※Payroll payment can be changed to digital salary payment “PayPay Paycheck” for an amount set by you
  
  

Benefits

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

Job Description

We are working to provide the best financial services to users in Japan. We empower PayPay product by realizing efficient, stable and optimized storage services.
PayPay is looking for Cloud Platform Engineers who specialize in databases at scale on mission critical systems.

Main Responsibilities

• Database operations, including monitoring, configuration management, upgrade, scaling, backup, and data migration.
• Iterate on database operations to improve quality and efficiency
• Troubleshoot stability and performance problems
• Contribute to documentation for communicating knowledge, experience and for effective decision-making
• Research and test new tools in database ecosystems, and adopt them in PayPay Group.

Tech Stack

| Python, Shell, Go, SQL, PL/SQL    
| Aurora, MySQL, PostgreSQL, TiDB, Redis, Valkey, DynamoDB    
| AWS    
| GitHub, Terraform, Jenkins, Ansible, Flyway    
| Victoria Metrics, Grafana, Prometheus    
| Slack, Zoom, Jira, Confluence    

Qualifications

• More than 5 years of DBA experience with a minimum of 3 years MySQL or PostgreSQL experience.
• More than 3 years of AWS experience in recent years
• Hands-on experience with Infra as Code (IaC - terraform)
• Interested in new technologies and willing to improve operational quality and efficiency
• Familiar with shell and programming language for scripting(Python, Go,...)

Preferred Qualifications

• Experience in automating operations related to Database or AWS.
• Familiarity with Jenkins, Ansible, Docker, Kubernetes
• Working experience in a full remote environment
• Experience in operating distributed systems
• Experience working with NoSQL such as Redis, Valkey and DynamoDB
• Experience working with NewSQL databases (like TiDB)
• Experience with DBs cost reduction
• Experience with DBs Disaster Recovery strategies

PayPay 5 senses

• Please refer PayPay 5 senses to learn what we value at work.

Working Conditions 

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)
  ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.
• LIFE in JAPAN FACTBOOK

Work Hours

• Super Flex Time (No Core Time)
• In principle, 9:00am-5:45pm (actual working hours: 7h45m + 1h break)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• 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）
  ＊PayPay's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed once a year
• Special Incentive once a year *Based on company performance and individual contribution and evaluation
• Late overtime allowance
  
  ※Payroll payment can be changed to digital salary payment “PayPay Paycheck” for an amount set by you

Benefits

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

About PayPay

Mission

• Drive teams to expand and optimize technical vision, architecture, system design, development process of systems
• Work with teams to answer consultations; furthermore, identify and prioritize tech debt and determine the best approach for resolving it.
• Realize the vision through measurable gains in system scalability and efficiency.
• Serve as a role model for junior engineers through mentoring and direct education.

Job Description

We are looking for a Principal Software Engineer to work on our various systems which need high scalability, reliability and availability. These challenges require creative thinking and a deep understanding of how software and platform work.

Our ideal candidate is an ace problem solver and a learner at heart. You should have a very high degree of comfort in a programming language of your choice. We offer a flexible work schedule and you get your choice of tools (both hardware and software) and most importantly, the opportunity to work on tough problems with the brightest minds around you. So, if challenges excite you, and you're ready for a big one, let us know.

Responsibilities: 

• Design, develop, test, deploy, maintain and improve software and core platform
• Lead technical aspects for multiple projects through hands-on execution and guidance of other engineers
• Provide architectural blueprints and technical leadership. 
• Provides input and guidance during all phases of programs to solve challenging technical issues.
• Build common platforms to support different business vertical application systems
• Develop tools and contribute to open source wherever possible
• Adopt problem-solving as a way of life – always go to the root cause!

Experience:

• Solid foundation in designing, implementing, and maintaining a large-scale distributed system.
• Experience in developing distributed platform systems such as Messaging Platforms, Pub/Sub Systems, Databases, Distributed Computing Frameworks, and Schedulers.

Tech Stack:

Our technology stack may vary based on project needs. Currently, we utilize:

• Programming Languages: Java, Kotlin, Scala
• Frameworks and Tools: Spring Boot, JUnit, Resilience4j, Feign
• Databases: MySQL/AuroraDB, DynamoDB, ELK, Kafka, Redis, TiDB
• Deployment and Orchestration: Docker, Kubernetes, ArgoCD, AWS, GCP
• Development Tools: GitHub, IntelliJ, Gradle, Maven, npm/yarn, Flyway, Jenkins
• Data Analytics: BigQuery, Kibana, Spark
• Diagramming Tools: PlantUML, draw.io, miro.com
• Communication: Slack, Zoom

Qualifications: 

• Degree in Computer Engineering or Computer Science or 7+ years equivalent experience in software development
• Strong fundamentals in data structure, algorithm, operating system and object-oriented programming
• Deep understanding of concurrency, distributed computing, large-scale system, messaging and algorithm
• Software development experience in one or more general-purpose programming languages
• Interest and ability to learn new technology stacks as needed

Preferred Qualifications:

• Experience in working for system development in finance, payment, or similar industries
• Experience with AWS services
• Contribute to open-source projects
• Language ability in Japanese and English is a plus (We have a professional translator but it is nice to have language skills)

Portrait: 

• Experience: Demonstrated experience designing and implementing large scale, high performance, micro-service based architectures utilizing new concepts and technologies where appropriate. 
• Ownership: A mentoring approach to owning, managing and improving the technical aspects of a large scale system end to end. 
• Communication: The ability to clearly and logically communicate your choice of technology and architectural decision based on its implementation strengths and limitations.
• Commitment: As a professional, commit to the growth and business goals of the organization and create impactful results by your ownership.
• Curiosity: Foster a development culture that explores new ideas knowing that we learn even from the ones that fail.

PayPay 5 senses

• Please refer PayPay 5 senses to learn what we value at work.

Working Conditions 

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)
  ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.
• LIFE in JAPAN FACTBOOK

Work Hours

• Super Flex Time (No Core Time)
• In principle, 9:00am-5:45pm (actual working hours: 7h45m + 1h break)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• 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）
  ＊PayPay's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed once a year
• Special Incentive once a year *Based on company performance and individual contribution and evaluation
• Late overtime allowance
  
  ※Payroll payment can be changed to digital salary payment “PayPay Paycheck” for an amount set by you

Benefits

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

Job Description

PayPay is looking for a Backend Engineer to work on our payment system to deliver the best payment experience for our customers.

AI-First Culture at PayPay

At PayPay, we believe that the future of software development is AI-augmented. Every engineer is expected to actively leverage AI tools for code reviews, testing, documentation, debugging, and productivity. AI is not optional — it is a mandatory part of our daily engineering workflow. Candidates must demonstrate both experience and mindset in utilizing AI effectively to deliver high-quality systems faster and better.

Main Responsibilities

• 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! Support the code you write in production.
• Leverage AI/LLM-based tools for code development, reviews, testing, and documentation in daily workflows.

Tech Stack

We select the best combination of tech at times.
| Java, Kotlin, Scala
| Spring Boot, JUnit, Resilience4j, Feign
| MySQL/AuoraDB, DynamoDB, ELK, Kafka, Redis, TiDB
| Docker, Kubernetes, ArgoCD, AWS, GCP
| GitHub, IntelliJ, Gradle, Maven, npm/yarn, Flyway, Jenkins, snyk,
| Bigquery, Kibana, Spark
| PlantUML, draw.io, miro.com
| Slack, Zoom

Qualifications

• 4+ years of experience in using Java 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.
• Business level of English or Japanese.
• Hands-on experience with AI/LLM tools (e.g., ChatGPT, GitHub Copilot, Gemini, CodeWhisperer, or similar) in professional software development.

Preferred Qualifications

• Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database clients.
• Experience with AWS services.
• Experience in working for system development in finance, payment, or similar industries.
• Experience in system design, development of web systems which handle massive amount of transactions or require scalability.
• Language ability in Japanese and English is a plus (we have a professional translator but it is nice to have language skills).
• Experience in microservices.
• Proven track record of integrating AI-assisted development into system design and delivery.
• Contributions to AI-related open-source projects or automation of workflows with AI is a plus.

PayPay 5 senses

• Please refer PayPay 5 senses to learn what we value at work.

Related position in PayPay Group

• PayPay Card: Backend Engineer 

　　What is differences with PayPay  (Please choose the position that best aligns with your career goals, as we do not allow simultaneous applications for two positions）

Working Conditions 

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)
  ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.
• 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)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• 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）
  ＊PayPay's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed once a year
• Special Incentive once a year *Based on company performance and individual contribution and evaluation
• Late overtime allowance
  
  ※Payroll payment can be changed to digital salary payment “PayPay Paycheck” for an amount set by you

Benefits

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

Job Description

PayPay is looking for a Cloud Platform Engineer for PayPay's Cloud Based payment system. This role will be responsible for the engineering of Cloud Infrastructure Platforms to provide robust, reliable and cost-efficient Platform so that we can deliver the best experience for our growing customers base.

Primary Responsibilities

• Architect and build a robust, scalable and stable infrastructure
• Architect and build Infrastructure that is easily maintainable during patching and upgrades without downtime
• Architect and build Infrastructure with AWS regional level failure tolerance
• Work together with our Security Engineers to provision a secure Infrastructure
• Automations for AWS Deployments to ensure fast delivery of Cloud Services to our developers
• Provide through Automations means for developers to easily deploy resources on AWS

Tech Stack

• AWS:
  • VPC, EC2, ECS, EKS, Lambda, Cloudfront, MWAA, RDS, ElastiCache, DynamoDB, Opensearch, S3, CloudWatch, Cognito, SQS, KMS, Secret Manager, KMS, MSK, SES, Transfer Family, ClientVPN, Shield, WAF, GuardDuty, IAM Identity Center, Organization, WorkSpaces, CodeCommit, CodeBuild, CodeDeploy, CodePipeline, CloudFormation and other services
• Terraform, Github Actions, Prometheus, Grafana, Atlantis, ArgoCD, OpenTelemetry, Wiz, Backstage

Qualifications

• More than 5 years of technical and architectural experience in AWS-based infrastructure platforms
• Extensive technical hands-on experience with computing, networking, storage, and analytical services on Latest AWS Services
• Experience with Terraform based infrastructure as code (IAC) on AWS
• Experience in production level infrastructure change management and releases for high traffic & business-critical systems
• Experience in Cloud infrastructure and platform systems availability, performance and cost management
• Experience as an AWS administrator, including Multi AWS organization management, managing 50+ AWS accounts and 100+ users
• Strong understanding of cloud security best practices in Fintech Industry
• Demonstrated skill in programming and scripting languages, including Python, Shell Scripting, Go, and Rust
• Excellent oral, written, and interpersonal communication skills
• Proficiency in either English or Japanese

Preferred Qualifications

• Certified at the AWS Professional or Specialty level
• Experience in payment industry compliance standards such as PCI DSS 
• Bachelor’s degree and above in a Computer Science related field
• Experience with other cloud service providers (e.g GCP, Azure)
• Experience with Kubernetes (CKA, CKAD or CKS)
• Experience in AI/ML infrastructure design and operations
• ​​Experience using and contributing to Open Source tools
• Published papers / blogs / articles
• Bilingual in English and Japanese is nice to have, but not required
• JLPT Level 3 or above

PayPay 5 senses

• Please refer PayPay 5 senses to learn what we value at work.

Working Conditions 

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)
  ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.
• 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)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• 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）
  ＊PayPay's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed once a year
• Special Incentive once a year *Based on company performance and individual contribution and evaluation
• Late overtime allowance
  ※Payroll payment can be changed to digital salary payment “PayPay Paycheck” for an amount set by you

Benefits

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