Japanese e-commerce and fintech company that operates 70+ businesses spanning e-commerce, digital content, communications and fintech services.

Rakuten, a leading Japanese e-commerce and fintech company, is seeking a Senior Golang and C++ Developer to join their BSS Backend Development Section. This role offers an exciting opportunity to work on critical backend systems within a company that operates 70+ businesses spanning e-commerce, digital content, communications, and fintech services.

The position requires an experienced developer with 8-10 years of expertise to lead a team of 2-3 members technically. You'll be responsible for developing microservices using C++ and Golang, working with event-driven architectures using Kafka, and maintaining complex distributed systems. The role combines technical leadership with hands-on development, requiring both strong coding skills and the ability to mentor junior developers.

The BSS Development Department (BSDD) plays a crucial role in developing BSS software and ensuring the delivery of business team requirements. You'll be working in an environment that values continuous improvement and quality delivery, collaborating with cross-functional teams to build robust backend solutions.

Key technical aspects include working with modern technologies like Kubernetes, Docker, and various databases including MySQL and Couchbase. You'll be involved in the full development lifecycle, from sprint planning and architecture discussions to code reviews and system maintenance.

This is an excellent opportunity for a senior developer looking to make a significant impact in a global technology company. The role offers the chance to work with cutting-edge technologies while leading and mentoring others. Rakuten's culture emphasizes innovation and entrepreneurship, making it an ideal environment for those who want to contribute to transformative technical solutions.

Senior Golang and C++ Developer position at Rakuten, leading backend development team in Tokyo, focusing on microservices and distributed systems.

Golang and C++ Developer - BSS Backend Development Section, BSS Development Department (BSDD)

Rakuten is a global leader in e-commerce and digital services, operating multiple businesses including Rakuten Rewards, which offers Cash Back and deals from over 3,500 merchants.

Rakuten International, a global leader with over 4,000 employees across 7 businesses, is seeking a Senior Full Stack Engineer with a strong backend focus for their Toronto office. This role is part of the international tribe driving Rakuten's Rewards platform expansion into new markets. The position requires expertise in Java, Spring Boot, and React, focusing on building scalable solutions and mentoring junior developers.

The ideal candidate will join a dynamic team working on Rakuten Rewards, a leading e-commerce platform that has paid out nearly $2 billion in Cash Back to its 15 million members. You'll be responsible for designing and implementing innovative features that shape the future of rewards, working with cutting-edge technologies including cloud services, microservices architecture, and modern development practices.

Key technical requirements include strong experience with Java, Spring Boot, TypeScript, and React, plus knowledge of cloud native development and distributed systems. The role offers the opportunity to work on large-scale systems while mentoring others and contributing to architectural decisions. You'll be part of a company that values continuous improvement, professional excellence, and customer satisfaction as core principles.

This is an excellent opportunity for a senior engineer looking to make a significant impact in a global e-commerce platform, working with modern technologies and helping shape the future of digital rewards and shopping experiences. The position offers the chance to work with a diverse international team while building solutions that serve millions of users worldwide.

Senior Software Engineer position at Rakuten Rewards in Toronto, focusing on backend development with Java, Spring Boot, and React to build scalable e-commerce and rewards solutions.

Sr. Software Engineer

A global leader in e-commerce and digital services with over 4,000 employees, offering Cash Back and rewards through partnerships with 3,500+ merchants.

Rakuten International, a global leader in e-commerce and digital services, is seeking a Senior Software Engineer to join their Toronto team. This role focuses heavily on backend development, requiring expertise in Java, Spring Boot, and React. As part of the international tribe, you'll be instrumental in expanding Rakuten's Rewards platform into new markets.

The position offers an opportunity to work on a cutting-edge rewards platform that has already paid out nearly $2 billion in Cash Back to its 15 million members. You'll be designing and building scalable solutions, mentoring junior developers, and contributing to a dynamic team that serves over 3,500 merchants.

The ideal candidate will bring 4+ years of application development experience, with strong expertise in Java, Spring Boot, and modern frontend technologies. You'll work in a microservices architecture environment, utilizing cloud technologies and contributing to both backend and frontend development. The role requires a deep understanding of software architecture patterns and the ability to mentor others.

Working at Rakuten means embracing their Five Principles for Success, including continuous improvement (Kaizen), professional passion, and customer satisfaction. The company culture emphasizes speed, innovation, and teamwork, making it an ideal environment for engineers who want to make a significant impact in the e-commerce and rewards space.

This is an excellent opportunity for a senior engineer looking to work with a global team, tackle complex technical challenges, and contribute to a platform that directly impacts millions of users' shopping experiences. The role offers exposure to modern technologies and architectures while working for a company that values technical excellence and continuous learning.

Senior Software Engineer position at Rakuten focusing on backend development with Java, Spring Boot, and React, building scalable solutions for their rewards platform in Toronto.

Rakuten International oversees 7 businesses with over 4,000 employees globally, recognized for leadership in e-commerce, digital content, advertising, and communications.

Rakuten Rewards, a leading e-commerce company with over 15 million members, is seeking an Android Software Engineer to join their team. This role offers an exciting opportunity to work on their flagship Android app that serves thousands of daily users. The position combines technical expertise in Android development with collaborative teamwork, offering a competitive salary range of $96,443 - $163,680.

As an Android Software Engineer, you'll be responsible for building and maintaining features that enhance the shopping experience for millions of users. The role requires proficiency in Kotlin/Java and experience with Android architecture components. You'll work closely with Product Managers, UX Designers, and backend teams to deliver high-quality features.

Rakuten International, the parent company, oversees 7 businesses globally and is known for innovation in e-commerce, digital content, and advertising. The company has paid out nearly $2 billion in Cash Back to its members and operates additional services like ShopStyle and Cartera Commerce.

The position offers comprehensive benefits including health, dental, and vision insurance, 401k matching, PTO, and bonus opportunities. The company culture is built on five principles: continuous improvement, professional passion, systematic approach to innovation, customer satisfaction, and speed in execution.

This is an excellent opportunity for a mid-level Android developer looking to make an impact at a global scale while working with modern technologies and practices in a collaborative environment.

Android Software Engineer position at Rakuten Rewards, building and maintaining the flagship shopping app, offering $96k-$164k salary with comprehensive benefits.

Software Engineer (Android)

Leading e-commerce company offering Cash Back, deals and rewards from over 3,500 merchants, recognized for innovation in e-commerce and digital content.

Rakuten International, a global leader in e-commerce with over 4,000 employees worldwide, is seeking an Android Software Engineer to join their Rakuten Rewards team. This role offers an opportunity to work on their flagship Android app that serves thousands of daily users. As part of a company that has paid out nearly $2 billion in Cash Back to its 15 million members, you'll be at the forefront of e-commerce innovation.

The position requires expertise in Android development using Kotlin/Java, with a focus on building and maintaining features that enhance user experience. You'll collaborate closely with Product Managers, UX Designers, and backend teams to deliver high-quality, scalable solutions. The role demands strong technical skills in Android architecture, RESTful APIs, and modern development practices.

This is an excellent opportunity for a mid-level engineer with 2+ years of experience to join a company known for its leadership in digital commerce and rewards programs. The compensation package is competitive, ranging from $96,443 to $163,680 annually, plus comprehensive benefits including health insurance, 401k matching, and various time-off benefits.

The company culture emphasizes continuous improvement, professional excellence, and customer satisfaction through their Five Principles for Success. Located in prime tech hubs (San Mateo, San Francisco, or New York), you'll be part of a global team that values innovation, optimism, and teamwork while working on products that impact millions of users daily.

Mid-level Android Software Engineer position at Rakuten Rewards, building and maintaining the flagship shopping rewards app with competitive salary and benefits.

Japanese e-commerce and fintech company providing global services in over 30 countries with 70+ businesses spanning e-commerce, digital content, communications and fintech.

Rakuten Group, a global company with over 30,000 employees across 30+ countries, is seeking an Identity and Access Management (IAM) Engineer for their Corporate IT Infrastructure Department. This role, based in Tokyo HQ, will be part of the Global IT Strategy Office team focused on maximizing corporate IT value globally.

The position involves managing identity and access-related services, working with technologies like Active Directory, SSO/MFA, Okta/ADFS, and handling integrations and automation. The current team of 5 members located in Japan and India is expanding to handle increasing workload.

As an IAM Engineer, you'll be responsible for administering and maintaining Windows Active Directory, Okta, ADFS, and Microsoft Entra ID environments. Key responsibilities include implementing user provisioning processes, troubleshooting IAM issues, developing PowerShell automation scripts, and ensuring system security compliance.

The role requires a Bachelor's degree in Computer Science or related field, with 3+ years of IT experience (2+ years in IAM). Strong technical skills in Active Directory, SSO solutions, and PowerShell scripting are essential. The position offers the opportunity to work with global teams while being based in Tokyo, with a hybrid work arrangement requiring 4 days per week in office.

This is an excellent opportunity for a security-minded professional to join a dynamic global team at a leading e-commerce and fintech company, contributing to critical identity and access management infrastructure that supports Rakuten's worldwide operations.

IAM Engineer role at Rakuten focusing on identity and access management services, requiring expertise in Active Directory, SSO/MFA, and PowerShell automation.

Identity and Access Management (IAM) Engineer - Corporate IT Infrastructure Department (CITID)

Rakuten's AI & Data Division (AIDD) is seeking a Senior System Engineer to join their GPU Optimization Department. This role is crucial in managing and optimizing Rakuten's company-wide AI infrastructure, focusing on high-performance computing and GPU resource management. The position involves working with cutting-edge technologies including the latest Hopper and upcoming Blackwell architectures, spanning thousands of accelerators across hybrid infrastructure.

The role combines DevOps expertise with specialized knowledge in GPU infrastructure, requiring deep understanding of Kubernetes, distributed systems, and ML/AI workloads. You'll be responsible for building and scaling GPU infrastructure that supports both training (ranking models, LLMs) and inference workloads, ensuring efficient utilization and stability of Rakuten's AI computing resources.

This is an excellent opportunity for an experienced engineer who wants to work at the intersection of infrastructure and AI, managing large-scale GPU clusters and optimizing performance for critical AI workloads. You'll be part of a team that enables AI innovation across Rakuten's global operations, working with state-of-the-art hardware and software solutions.

The position offers exposure to cutting-edge AI infrastructure challenges, including work with large language models, real-time AI, and distributed training systems. You'll collaborate with global AI/ML teams and have the opportunity to shape the future of Rakuten's GPU platform architecture.

Senior System Engineer role at Rakuten focusing on GPU infrastructure optimization and platform engineering for AI workloads.

System Engineer, GPU Infrastructure & Platform Engineering - GPU Optimization Department (GPUOD)

Rakuten International, a global leader in e-commerce and digital services with over 4,000 employees worldwide, is seeking a Principal Android Engineer to join their innovative team. This role presents an exceptional opportunity to shape the future of mobile commerce at a company that has paid out nearly $2 billion in Cash Back to its 15 million members.

The position combines strategic leadership with hands-on technical expertise, requiring a seasoned professional with 12+ years of Android development experience. As a Principal Engineer, you'll be responsible for defining engineering strategies, evaluating emerging technologies, and driving technical excellence across multiple teams. You'll work closely with iOS, backend, and web teams to create cohesive multi-platform solutions while mentoring other engineers and leading architecture reviews.

The ideal candidate will bring deep expertise in Android SDK, Kotlin, Java, and modern Android development practices including MVVM/MVP patterns, dependency injection, and reactive programming. You'll need to demonstrate strong leadership abilities, excellent communication skills, and a track record of delivering high-quality mobile applications at scale.

This role offers competitive compensation ranging from $156,008 to $291,500 annually, along with comprehensive benefits including health insurance, 401k matching, PTO, and discretionary bonuses. Based in San Mateo, California, you'll be part of a dynamic team that values innovation, continuous improvement, and customer satisfaction.

Rakuten's culture is built on their Five Principles for Success, emphasizing continuous improvement, professional passion, customer satisfaction, and speed of execution. This is an excellent opportunity for a technical leader who wants to make a significant impact in the e-commerce space while working with cutting-edge mobile technologies.

The role combines strategic thinking with hands-on technical leadership, offering the chance to shape the future of mobile commerce while working with a global team that serves millions of users. If you're passionate about mobile development, technical excellence, and building products that delight customers, this position offers the perfect blend of challenge and opportunity.

Principal Android Engineer position at Rakuten focusing on mobile commerce development, technical leadership, and strategic engineering initiatives.

Principal Engineer - Android

A global tech company operating 70+ businesses across e-commerce, digital content, communications and fintech, serving almost 1.3 billion members worldwide.

Join Rakuten's Global Ad Technology Department (GATD), a cross-functional and data-driven organization working across Japan, Singapore, India, and China. As a Software Engineer in the Data Management Platform team, you'll be at the forefront of developing and maintaining the technology that powers Rakuten's advertising systems. The role offers the opportunity to work with cutting-edge technologies in high-performance, large-scale ad applications and platforms, including big data processing systems.

The position requires strong direct marketing insight across multiple channels, combined with robust technical expertise to implement user stories and support marketing activities efficiently. You'll be involved in the complete development lifecycle, from architecture design to system operation, working with technologies like Java, Scala, Spring Boot, and various cloud platforms.

GATD manages the entirety of advertising systems that power Rakuten, focusing on providing data-driven marketing solutions through AD delivery, Tracking, Reporting, and Data Sync Platforms. The team is actively expanding and seeking talented individuals to accelerate the development of their Data Management Platform and related services.

Working at Rakuten means joining a global tech leader that operates over 70 businesses across e-commerce, digital content, communications, and fintech. The company serves nearly 1.3 billion members worldwide and maintains a culture of innovation and entrepreneurship. Rakuten values diversity as a core strategy and driving force for innovation, providing equal opportunities to those who share their founding philosophy of transforming society through innovation.

Software Engineer position at Rakuten's Global Ad Technology Department, focusing on Data Management Platform development with Java, Scala, and modern web technologies.

Rakuten Engineering Jobs

Japanese e-commerce and fintech company that operates 70+ businesses spanning e-commerce, digital content, communications and fintech services.