Job Description: About Rakuten Rakuten Group, Inc. is the largest e-Commerce company in Japan, and provides a variety of services in e-commerce, fintech, digital content and communications to many users all over the world. Department overview Search Department focuses on Search, Discovery, and Navigation experience for users of Rakuten. We design, develop, and deploy high performance, fault-tolerant distributed systems used by millions of Rakuten customers every day. We strive to deliver the most innovative solutions that are helpful to people and societies around the world. Position: Why We Hire We are looking for a senior backend software engineer to work on core search system development. The role will build the state-of-the-art search systems, propelling the fast iteration of search development. Position Details - Support fast iterations of Rakuten search business and further enable the product growth. - Build a fast and robust Search product by keeping optimizing system performance and improving service stability. - Construct a high freshness index and provide a reliable offline data support for Search Engine. - Guarantee reasonable Search architecture governance to ensure that the overall system operates smoothly. Mandatory Qualifications: - BS degree in Computer Science, Computer Engineering, or other relevant majors with minimum 3-5 years of experience in either backend service development or data engineering domain. - Strong programming skills and solid knowledge in data structure and algorithm. - Good understanding of operating system and networking concepts. - Hands-on experience with at least one data processing framework (e.g., Hadoop, Spark, Flink, etc) - Knowledge in database (be it relational or KV-like) is a plus. - A strong problem-solving mindset and good communication skills. - Self-motivated and a team player. Desired Qualifications: - Good understanding on how modern Search system is built or/and how modern Search product should be evolved. - Industry experience in building a consumer-facing Search product. - Japanese speaking and reading capability is good to have. #technologyservicediv #engineer #applicationsengineer In Japanese, Rakuten stands for ‘optimism.’ It means we believe in the future. It’s an understanding that, with the right mind-set, we can make the future better by what we do today. So we challenge ourselves to evolve, innovate and experiment, to create a better, brighter future for everyone. Today, our 70+ businesses span e-commerce, digital content, communications and fintech, bringing the joy of discovery to almost 1.3 billion members across the world. If you have any trouble logging in, please contact us here Rakuten Group, Inc.: rakuten-recruiting-info@mail.rakuten.com Please read the Application Requirements(EN) / 募集要項(JP) before applying. Our Diversity & Inclusion Policy and Application Documents Rakuten’s corporate mission is to “contribute to society by creating value through innovation and entrepreneurship.” We foster a culture that provides equal opportunities to those who share this founding philosophy and take on the challenge to transform society, regardless of age, gender, nationality, or any other status. Diversity is one of Rakuten's core strategies and a driving force for innovation. Because of this, you are not required to submit any of the following information in order to apply for our job positions. - Gender - Age - Photo - Nationality - Information not related to business, such as ideological beliefs, family structure, etc. * For legal compliance, we may ask you about your work eligibility. See the details