Sr. Software Engineer

Job Description:

Rakuten International is a division of Rakuten Group, Inc., a Japanese global technology leader in services that empower individuals, communities, businesses and society. Headquartered in San Mateo, California with more than 4,000 employees worldwide, the Rakuten International business portfolio includes market leaders in e-commerce, digital marketing, advertising, communications and entertainment. We create products and services that provide exceptional value by aligning members and the businesses that want to engage them in a shared community.

Rakuten Advertising provides advertising technology and consumer insights to the world’s leading brands and retailers. Working with agencies and brands around the world, Rakuten Advertising unites technology, client strategy and consumer insights to deliver advertising experiences that drive increased brand awareness and marketing performance. With access to Rakuten’s diverse media properties and audiences, combined with an award-winning performance network and proprietary consumer research, Rakuten Advertising creates the right conditions to reach new customers and sustain long-lasting loyalty.

About Our Team

Join a dynamic and globally distributed team that forms the backbone of our transaction and merchant onboarding systems. We are a truly diverse group, with talented individuals collaborating seamlessly across multiple geographies, bringing a rich tapestry of perspectives and experiences to our work every day. This global collaboration fosters a vibrant and inclusive environment where innovation thrives.

Our core mission is to build, maintain, and evolve the critical microservices and APIs that power transaction recording and refunds for both Shopify and non-Shopify merchants. This is a high-impact role, as our systems currently manage data for over 1200+ Shopify merchants, serving an impressive volume of more than 20 million requests per month. We are the guardians of financial data integrity and the enablers of smooth, reliable transactions for our vast merchant base.

Beyond transactions, our team is also at the forefront of merchant growth. We are responsible for developing and maintaining the sophisticated Merchant Onboarding APIs and integrations that streamline the process for new businesses to join our platform. This involves crafting intuitive, robust, and scalable solutions that ensure a seamless and efficient onboarding experience.

Team culture: Our team thrives on a culture of collaborative innovation, where diverse global perspectives fuel continuous improvement and problem-solving. We prioritize impact-driven ownership, empowering individuals to build robust solutions while fostering an environment of mutual support and continuous learning. We are committed to respectful inclusivity, celebrating every voice, and ensuring a healthy growth for all.

Key Responsibilities:

• Develop and document high-quality software design and architecture using technologies like Java, Spring Boot, ReactJS, MySQL, GCP.
• Able to develop and implement software solutions for complex engineering problems.
• Automate tasks (unit testing, code coverage, integration testing, CI/CD, etc.) through appropriate tools
• Ensure best practices, standardization, clean and maintainable code in all software systems.
• Active participation during architectural conversations that balance technical and business considerations for short-term project goals and long-term platform health
• Provide information by collecting, analyzing, and summarizing development and service issues.
• Coordinate with the project management office to ensure delivery timelines are established, clearly communicated, and maintained
• Collaborate with product management to clarify requirements and provide accurate estimates
• Implement engineering solutions with messaging middleware like Kafka and RabbitMQ.
• Mentor and provide code feedback to junior software engineers to make them more technically competent.
• Ability to do agentic coding using tools like Cursor, Github Co-pilot.

Minimum Requirements:

• 8+ years of experience in software engineering
• B.S. in Computer Science, Computer Engineering, Electrical Engineering or other quantitative science fields.
• Proficiency in Java, React & Golang
• Experience in SQL databases like MySQL & PostgresSQL
• Experience with messaging middleware like Kafka and RabbitMQ
• Experience with Git for source control
• Experience with event driven distributed architecture
• Experience building microser