FinTech company with 65M users, offering payment services in Japan with a diverse team from over 50 countries.

PayPay, a leading FinTech company in Japan with over 65M users, is seeking an Android Engineer to enhance their payment product. The role focuses on delivering exceptional payment experiences for Japanese customers through innovative mobile development.

As an Android Engineer, you'll be part of a diverse team spanning 50+ countries, working on PayPay's core payment platform. The position involves close collaboration with the product team to customize payment experiences, prototype new features, and maintain high-quality code standards.

Key technical aspects include working with Kotlin, Simple Stack, RxJava, and various modern Android development tools. The role requires strong expertise in Object-Oriented design, REST API integration, and a minimum of 6 years of professional experience.

The company offers an attractive work environment with their "Work From Anywhere at Anytime" policy, super flexible working hours, and comprehensive benefits. PayPay provides competitive compensation, including annual salary reviews, special incentives, and various allowances.

Benefits include social insurance, 401K, language learning support, and visa sponsorship with relocation assistance. The company culture emphasizes innovation, risk-taking, and professional growth, making it an ideal place for developers who want to push boundaries in the FinTech space.

This role is perfect for candidates who are passionate about mobile development, have strong technical skills, and want to be part of a rapidly growing FinTech platform that's shaping the future of payments in Japan.

Senior Android Engineer position at PayPay, developing payment solutions with Kotlin and modern Android technologies in a flexible work environment.

Android Engineer

PayPay is a FinTech company that has grown to over 65M users since its launch in 2018, with a diverse team from over 50 countries.

PayPay, a rapidly growing FinTech company with over 65M users, is seeking a Backend engineer to work on their payment system. The ideal candidate will design large-scale systems, leverage infrastructure for high-throughput applications, and contribute to open-source projects. With a diverse team from over 50 countries, PayPay offers a dynamic work environment where you'll face new challenges daily.

Key responsibilities include:
- Designing complex, large-scale systems
- Understanding and leveraging infrastructure for high-throughput applications
- Developing tools and contributing to open-source projects
- Adopting a problem-solving mindset and supporting code in production

The tech stack includes Java, Kotlin, Scala, Spring Boot, MySQL, DynamoDB, Kafka, Docker, Kubernetes, AWS, and more. 

Qualifications:
- 3+ years of Java experience or excellent skills in languages like Scala, Python, or Go
- Experience with NoSQL databases and distributed cache
- Strong fundamentals in data structures, algorithms, and OOP
- In-depth understanding of concurrency and distributed computing
- Degree in Computer Engineering/Science or equivalent experience
- Business-level English or Japanese

PayPay offers a flexible work environment with their WFA (Work From Anywhere at Anytime) policy, competitive salary, and comprehensive benefits including social insurance, 401K, and visa sponsorship.

Join PayPay to be part of a company that dares to create a future beyond imagination, constantly taking risks and challenging themselves in the exciting world of FinTech.

PayPay seeks a Backend engineer to design and develop large-scale payment systems, offering a dynamic work environment and comprehensive benefits.

Backend Engineer

PayPay, a rapidly growing FinTech company, is seeking an Android Engineer to enhance their payment product for Japanese customers. With over 65 million users since 2018, PayPay boasts a diverse team from 50+ countries. The role involves working on the mobile finance service, following new technologies, and building features using various technical approaches. Key responsibilities include collaborating with the product team, prototyping new features, focusing on UI/UX principles, and working with an elite app development team. The tech stack includes Kotlin, various Android libraries, and tools like GitHub and Firebase. Qualifications include deep understanding of mobile development, strong Kotlin and Android skills, passion for code quality, API integration experience, and at least 6 years of professional experience. The company offers a flexible work environment with a "Work From Anywhere at Anytime" policy, competitive salary, and comprehensive benefits. PayPay values innovation, risk-taking, and constant challenges, aiming to create a future beyond imagination. Join PayPay to grow, reach new dimensions, and contribute to a revolutionary payment experience in Japan.

Senior Android Engineer needed for PayPay, a leading FinTech company in Japan, to develop innovative payment solutions.

PayPay, a rapidly growing FinTech company, is seeking iOS Engineers to enhance their payment product. Launched in 2018, PayPay has amassed over 65M users and boasts a diverse team from more than 50 countries. The company's vision is to create a future beyond imagination by constantly taking risks and challenging themselves.

As an iOS Engineer at PayPay, you'll work on delivering the best payment experience for customers. Your responsibilities will include collaborating with the product team, prototyping new features, focusing on UI/UX design principles, and working with an elite team of app developers.

Key qualifications include:
- Deep understanding of modern mobile/iOS development
- Strong skills in Object Oriented design and Swift
- Experience with iOS development
- Passion for code quality and writing test cases
- Familiarity with Rest API integration
- Strong sense of ownership
- At least one showcasable mobile app
- Minimum 6 years of professional experience

The role offers exciting opportunities for growth and innovation in a fast-paced environment. PayPay values their "5 senses" approach to work and offers a flexible working arrangement with their Work From Anywhere at Anytime (WFA) policy.

Benefits include competitive salary, annual reviews, special incentives, various allowances, social insurance, 401K, language learning support, and visa sponsorship with relocation support. Join PayPay to be part of a team that's shaping the future of mobile finance in Japan and beyond.

Senior iOS Engineer needed for PayPay, a leading FinTech company in Japan, to develop innovative mobile payment solutions.

iOS Engineer

PayPay is a FinTech company with over 65M users, launched in 2018, with a diverse team from 50+ countries.

PayPay, a rapidly growing FinTech company with over 65M users since its 2018 launch, is seeking a Principal Software Engineer to work on high-scalability, reliability, and availability systems. The ideal candidate is an ace problem solver with a deep understanding of software and platforms. 

Responsibilities include:
- Designing, developing, and improving software and core platforms
- Leading technical aspects of multiple projects
- Providing architectural blueprints and technical leadership
- Building common platforms for different business vertical application systems
- Developing tools and contributing to open source

The role requires:
- Solid foundation in large-scale distributed systems
- Experience in distributed platform systems
- Strong fundamentals in data structures, algorithms, and OOP
- 7+ years of software development experience

Tech stack includes Java, Kotlin, Scala, Spring Boot, MySQL, Kafka, Docker, Kubernetes, AWS, and GCP.

PayPay offers a flexible work schedule, choice of tools, and the opportunity to work on challenging problems. The company values ownership, communication, commitment, and curiosity. They provide a "Work From Anywhere at Anytime" policy, super flex time, comprehensive benefits, and a competitive salary package.

Join PayPay to be part of a diverse, innovative team shaping the future of FinTech in Japan.

Principal Software Engineer for high-scalability systems at PayPay, a leading FinTech company in Japan.

Principal Software Engineer

PayPay, a rapidly growing FinTech company with over 65M users, is seeking an experienced Machine Learning Engineer to lead the development of cutting-edge ML systems for credit modeling and default risk prediction. This role involves working with petabyte-scale datasets, developing high-throughput, low-latency systems, and collaborating with innovative engineering teams to integrate ML functionalities into production systems.

The ideal candidate will have 3+ years of professional experience in developing and implementing credit ML models within the banking or FinTech industry. They should have a strong background in end-to-end ML systems, cloud platforms (AWS preferred), data pipelines, and model monitoring. Proficiency in Python, PostgreSQL, Java/Scala, and various ML frameworks is required.

Key responsibilities include designing and implementing credit ML models and systems, developing end-to-end ML pipelines, collaborating with data scientists and software engineers, and utilizing cloud platforms to scale ML solutions.

PayPay offers a flexible work environment with a WFA (Work From Anywhere at Anytime) policy, super flex time, and comprehensive benefits including social insurance, 401K, and VISA sponsorship. The company values unparalleled speed, commitment, logical thinking, curiosity, and problem-solving skills in its employees.

Join PayPay to work on impactful projects that touch the lives of over 65 million customers daily and be part of a diverse, innovative team that's shaping the future of FinTech in Japan.

Experienced Machine Learning Engineer needed for credit modeling and risk prediction at PayPay, a leading FinTech company in Japan.

Machine Learning Engineer

PayPay, a rapidly growing FinTech company, is seeking a web frontend engineer to join their team. Founded in 2018, PayPay has expanded to over 65M users and boasts a diverse workforce from more than 50 countries. The company's vision is to create a future beyond imagination by constantly taking risks and challenging themselves.

As a web frontend engineer at PayPay, you'll be at the forefront of changing how people in Japan use and manage their finances and business. You'll work in a fast-paced environment, building features that directly impact the payments industry. The role requires versatility and enthusiasm to tackle new challenges.

Key responsibilities include:
- Collaborating with Product Managers, Designers, and various tech teams to implement features
- Contributing to the team by sharing knowledge, participating in code reviews, and providing feedback
- Triaging, debugging, and resolving product issues

The tech stack includes TypeScript, JavaScript, HTML/CSS, Vue.js, React, NestJS, Express.js, Docker, Kubernetes, AWS, and many more cutting-edge technologies.

Qualifications:
- At least 3 years of industry experience developing secure web frontend applications
- At least 1 year of industry experience with VueJS (preferred) or React
- Strong knowledge of software engineering best practices
- Business level English proficiency

Additional skills that would be beneficial include experience with frontend performance optimization, iOS or Android development, designing RESTful APIs, and web hosting infrastructure.

PayPay offers a flexible work environment with their Work From Anywhere at Anytime (WFA) policy, allowing you to work remotely from anywhere in Japan. The company provides competitive compensation, including an annual salary paid monthly, performance-based incentives, and various allowances.

Benefits include social insurance, 401K, language learning support, translation/interpretation support, and visa sponsorship with relocation support for international candidates.

Join PayPay and be part of a team that's reshaping the financial landscape in Japan while enjoying a diverse, challenging, and rewarding work environment.

PayPay seeks a web frontend engineer to build features changing how people in Japan manage finances and business.

Web Frontend Engineer

A fintech company that surpassed 65 million users in about 6 years since its service launch in 2018, with members from about 50 countries and regions.

PayPay, a fintech company that has grown to over 65 million users in about 6 years since its launch in 2018, is composed of diverse members from about 50 countries and regions. With the vision "OUR VISION IS UNLIMITED_", PayPay aims to create a future beyond imagination, maintaining a Day 1 mindset. The company is seeking professionals passionate about promoting cashless payments and financial life platforms in Japan at an unparalleled speed.

The Corporate Engineering department at PayPay is responsible for in-house development of business systems supporting all areas of PayPay, including merchant, customer, and authority domains. With the mission "Contributing to the company's growth through technology", they drive development and operational efficiency at an overwhelming pace. The department includes various roles from IT strategy formulation to full-scratch app development and infrastructure engineering.

The role involves developing and operating APIs that assess risks within the PayPay app using SaaS services. Key responsibilities include:
- Developing APIs that block transactions when risks are detected based on request content and transaction aggregation results.
- Simple coding using Scala, CQL, and Python.
- Comprehensive involvement from negotiating with other teams, determining specifications, to development, testing, monitoring, and operation.

Past projects include creating anti-social force determination API for eKYC, building systems to block transactions from suspicious users likely to be ATO (Account Takeover), and constructing judgment systems for blocking high-value payments and charges under specific conditions.

The development environment includes AWS, GCP, Scala, Python, Azkaban, Zeppelin, and Maquette (a proprietary SaaS product utilizing Kafka, Spark, and Cassandra).

The ideal candidate should align with PayPay's 5 senses, actively pursue learning and knowledge acquisition, and have the motivation to improve overall system development efficiency and productivity, not just technical skills.

Develop and operate risk assessment APIs for PayPay app using SaaS services, involving coding in Scala, CQL, and Python.

Corporate Engineer (Risk Management)

PayPay, a rapidly growing FinTech company with over 65M users, is seeking a Data Engineer for their DaaS team. The role involves designing, implementing, and operating a robust Data Engineering Platform using cutting-edge technologies like Spark, Hudi, Delta Lake, Scala, and AWS suite of data tools. The ideal candidate will have 5+ years of experience as a Data Engineer, with expertise in Apache Hudi, Delta Lake, Spark, and Scala. They should be proficient in AWS services, data orchestration tools, and infrastructure as code (Terraform). The position offers a dynamic work environment with a diverse team from over 50 countries, flexible work arrangements (Work From Anywhere at Anytime), and comprehensive benefits. PayPay values innovation, risk-taking, and constant challenges, aiming to create a future beyond imagination. Join PayPay to grow, reach new dimensions, and contribute to a vision that no one else can imagine.

Senior Data Engineer needed for PayPay's DaaS team to design and implement scalable data platforms using cutting-edge technologies.

Data Engineer

PayPay, a rapidly growing FinTech company with over 65M users, is seeking a Senior Backend Engineer to work on their payment system. The ideal candidate will design large-scale systems, leverage infrastructure for high-throughput applications, and contribute to open-source projects. Key responsibilities include developing tools, participating in code reviews, providing technical guidance, and optimizing applications for speed and scalability. The company values constant innovation and challenges, offering opportunities for personal and professional growth in a diverse, international environment. 

The tech stack includes Java, Kotlin, Scala, Spring Boot, MySQL, DynamoDB, Kafka, Docker, Kubernetes, AWS, and GCP. Qualifications include excellent skills in Java or similar languages, experience with SQL and NoSQL databases, strong fundamentals in data structures and algorithms, and understanding of concurrency and distributed computing. 

PayPay offers a flexible work environment with their WFA (Work From Anywhere at Anytime) policy, super flex time, and comprehensive benefits including social insurance, 401K, and VISA sponsorship. The company culture emphasizes constant innovation, professionalism, and passion, making it an ideal place for those who thrive on challenges and want to contribute to shaping the future of digital payments in Japan.

Senior Backend Engineer for PayPay's payment system, designing large-scale systems and optimizing high-throughput applications.

Senior Backend Engineer

A fintech company that has surpassed 65 million users in about 6 years since starting its service in 2018, with diverse members from about 50 countries and regions.

PayPay, a fintech company that has grown to over 65 million users in just 6 years since its 2018 launch, is seeking a Software Engineer (Data Engineer) to join their diverse team from 50 countries. The role is part of PayPay's Corporate Engineering division, which is crucial for the rapid service growth and organizational expansion.

As a Data Engineer, you'll be responsible for:
1. Designing data architecture and developing/operating components of the data analysis infrastructure
2. Preparing and operating a data analysis platform for effective use of various data circulating within PayPay
3. Supporting business decision-making and improving operational efficiency
4. Defining KPIs and other indicators, and data handling (coordinating with internal departments)
5. Developing guidelines for company-wide data governance promotion, security measures, and improving operational tasks

Key projects include:
- Creating Data Warehouses (company-wide marts, department-specific marts, master management)
- Improving GCP operations (BigQuery monitoring, IAM design, project division)
- BI construction (supporting from data acquisition to BI implementation)
- Stable delivery of KPI reports necessary for management
- Comparative re-examination of Redshift and BigQuery

The ideal candidate will have:
- 3+ years of experience in application development or developing/operating components of data analysis infrastructure
- Experience in system development using cloud environments like AWS or GCP
- Basic knowledge of system development (database, network, security, etc.)
- Business-level or higher Japanese language skills

PayPay offers a flexible work environment with their WFA (Work From Anywhere at Anytime) policy, super-flex time system, and various benefits including annual paid leave, personal leave, and performance-based bonuses.

Join PayPay to contribute to the rapid promotion of cashless payments in Japan and the development of a financial life platform, working with a team of professionals passionate about creating new value and solving challenges.

Join PayPay as a Software Engineer (Data Engineer) to design and develop data analysis infrastructure, supporting the growth of Japan's leading fintech company.

Software Engineer (Data Engineer)

PayPay, a fintech company that has grown to over 65 million users in about 6 years since its launch in 2018, is seeking a Software Engineer (Data Engineer) to join their team. The company is composed of diverse members from about 50 countries and regions.

As a Data Engineer at PayPay, you will be responsible for preparing and maintaining a data analysis infrastructure that allows PayPay employees to effectively utilize various internal data. Your mission will be to support business decision-making and improve operational efficiency through the development and operation of this data platform.

Key Responsibilities:
- Design data architecture and develop/operate various components of the data analysis infrastructure
- Define KPIs and other metrics, and coordinate with internal departments
- Develop and improve guidelines for company-wide data governance promotion
- Implement security measures and improve operational tasks

Recent Projects:
- Creation of data warehouses (company-wide marts, department-specific marts, master data management)
- Improvement of GCP operations (BigQuery monitoring, IAM design, project segmentation)
- BI construction (supporting a wide range of tasks from data acquisition to BI implementation)
- Stable delivery of KPI reports necessary for management
- Comparative re-examination of Redshift and BigQuery

Tech Stack:
- Python
- GCP (BigQuery, Composer)
- Docker, Terraform
- Fivetran
- Looker (Data Portal)

The ideal candidate will have strong logical thinking skills, the ability to communicate effectively with stakeholders, and a proactive attitude towards identifying and solving challenges. Experience with job schedulers like AirFlow, Luigi, or JP1, and familiarity with large-scale data analysis platforms using Redshift or BigQuery would be advantageous.

PayPay offers a flexible work environment with their WFA (Work From Anywhere at Anytime) policy, super-flex time system, and various benefits including annual leave, personal leave, and performance-based bonuses. Join PayPay to contribute to the rapid growth of cashless payments and financial life platforms in Japan.

Join PayPay as a Data Engineer to build and maintain data analysis infrastructure, supporting business decisions and operational efficiency.

PayPay is a FinTech company that has grown to over 65M users since its launch in 2018, with a hugely diverse team from over 50 different countries.

PayPay, a rapidly growing FinTech company with over 65M users, is seeking a Data Engineer for their Credit Modeling team. This role involves designing and implementing improvements to ETL processes and data through independent communication with data-savvy stakeholders. The ideal candidate will build and maintain distributed batch and real-time data pipelines, facilitate actionable use cases with a user- and product-oriented mindset, and work across various engineering specialties. The role requires enforcing privacy and security standards by design and supporting teams with building decentralized data solutions. 

PayPay offers a diverse work environment with team members from over 50 countries and embraces a vision of creating a future beyond imagination. The company values risk-taking, constant challenges, and professional growth. They offer a flexible work environment with their WFA (Work From Anywhere at Anytime) policy, allowing employees to live anywhere in Japan.

Key responsibilities include:
- Designing, building, and maintaining data pipelines and models
- Facilitating real-life actionable use cases
- Working across various engineering specialties
- Supporting teams with decentralized data solutions
- Enforcing privacy and security standards

Qualifications:
- 3+ years experience in building complex data pipelines
- Proficiency in at least one primary language (e.g., Java, Scala, Python) and SQL
- Experience with technologies like BigQuery, Spark, AWS Redshift, Kafka, or Kinesis streaming
- Strong fundamentals in big data and machine learning

Benefits include social insurance, 401K, translation/interpretation support, VISA sponsorship, relocation support, and various types of paid leave. The company offers a competitive salary with annual reviews and special incentives based on performance.

Join PayPay to be part of an innovative team that's shaping the future of FinTech in Japan and beyond!

PayPay seeks a Data Engineer for Credit Modeling to design and implement ETL processes, build data pipelines, and support data-driven solutions in a diverse, fast-paced FinTech environment.

Data Engineer, Credit Modeling

A fintech company that has surpassed 65 million users in about 6 years since starting its service in 2018, composed of diverse members from about 50 countries and regions.

PayPay, a fintech company that has grown to over 65 million users in about 6 years since its launch in 2018, is seeking a Software Engineer specializing in Fraud Prevention. The role involves developing and operating APIs that assess risks within the PayPay app, using SaaS services for development.

Key Responsibilities:
- Develop APIs that block transactions when risks are detected based on request content and transaction aggregation results.
- Perform simple coding using Scala, CQL, and Python.
- Handle end-to-end processes including negotiation with other teams, specification determination, development, testing, monitoring, and operation.

Past Projects:
- Creation of anti-social determination API for eKYC
- Building a judgment system for blocking transactions of suspicious users with high possibility of ATO (Account Takeover)
- Constructing judgment systems for blocking high-value payments and charges under specific conditions
- Developing judgment systems for blocking other suspicious transactions

Tech Stack:
- AWS, GCP
- Scala
- Python
- Azkaban, Zeppelin
- Maquette (proprietary SaaS product utilizing Kafka, Spark, Cassandra, etc.)

The ideal candidate will have:
- Experience in promoting business process improvement/efficiency projects (PM/PL/PMO)
- Custom application development experience (2+ years)
- Business-level or higher Japanese language skills
- Ability to communicate effectively with diverse stakeholders

Additional desired skills:
- Practical experience in fraud prevention for internet services or financial services
- English proficiency (Listening & Speaking)

PayPay offers a flexible work environment with super flex time (no core time), primarily remote work, and various benefits including annual paid leave, personal leave, and performance-based bonuses. The company values continuous learning and efficiency improvement in system development.

Join PayPay to contribute to the rapid growth of cashless payments and financial life platforms in Japan, working with a diverse team to create innovative solutions in fraud prevention and risk management.

PayPay Engineering Jobs

FinTech company with 65M users, offering payment services in Japan with a diverse team from over 50 countries.