Test Engineer - Company CIO Office (CIOO)

Job DescriptionDepartment OverviewThe Company CIO Office is a newly established organization, launched in June 2025 under the direct lead of Rakuten Mobile's CIO. Its core mission is to address various issues related to IT systems and information assets by developing IT strategies and governance frameworks and subsequently implementing the necessary system developments.From the perspective of Rakuten Group's Communications & Energy Company, this department is undertaking a highly significant initiative to establish corporate governance across Rakuten Mobile.Furthermore, we foster a culture that values each employee's ideas and encourages proactive challenges.The IT Development Section is responsible for the planning, system development, and operation necessary to realize our company-wide IT strategy.Team members will be involved from the initial planning stages, participating in all phases of system development, from upstream conceptualization to downstream implementation.Furthermore, we actively incorporate the latest technologies into our development efforts, including planning and development aimed at promoting the internal use of AI.PositionWhy We HireWe are significantly strengthening our organizational structure to realize Rakuten Mobile's IT strategy. This includes addressing various challenges that arise in business promotion and developing systems to improve operational efficiency using AI.Position DetailsYou will be responsible for conceptualizing system solutions by carefully considering appropriate responses to challenges raised by various departments within Rakuten Mobile.Based on these conceptualized plans, you will develop and execute test plans to improve the quality of the developed systems.Additionally, you will handle internal and external coordination and administrative tasks that arise during system development.Work EnvironmentCurrently, the entire department consists of 16 members, with 2 in this section. However, we plan a significant expansion of the entire organization, including other sections, in the near future.Our existing team is primarily composed of mid-career hires, many with backgrounds in telecommunications carriers.While development is currently conducted on a SaaS platform, we plan to establish development environments tailored to future development needs.Mandatory Qualifications 5+ years of experience in IT-related work Experience in testing web and mobile applications Ability to proactively identify issues and take action to resolve them Business level JapaneseDesired Qualifications Experience in QA (Quality Assurance) and QC (Quality Control) Experience in Web and mobile application development Experience in Web system construction Acquisition of IPA Information Technology Engineer Examination certificationOther InformationAdditional information on LocationRakuten Crimson House (Head office)Additional Information On SecondmentAlthough your official affiliation will be with Rakuten Group's IT Governance Department, you will operate as a member of Rakuten Mobile's CIO Office, focusing on initiatives and support for Rakuten Mobile.Additional Information On English QualificationProficiency in English sufficient to read and understand documents, and to communicate via email and chat is desirable.TOEIC Score 800 above or possess equivalent#engineer #applicationsengineer #communicationsandenergy