HR System Specialist – Data Analyst

Description 【募集の背景 / Purpose & Scope】To support Global Massload process for required regular data changes including reorganizational structures. This role will be collaborating with the Global Team members based in EMEA. As part of data loads the validation of data and data integrity controls need to be processed thoroughly【職務の内容 / Essential Job Responsibilities】 （雇入れ直後）

• Coordinate and execute mass data uploads into the SuccessFactors system, ensuring accuracy, compliance, smooth integration and minimal disruption to operations.
• Manage and implement organizational structure changes, including department restructures, reporting line updates, and job / position mapping.
• Analyse, clean, validate, and transform data from various sources to support system updates and bulk processing.
• Develop and maintain tools, templates, and scripts to streamline mass upload and data transformation processes.
• Collaborate with different HR teams, DigitalX, and Business Operations teams to gather requirements, test system changes, and verify data integrity post-load.
• Support change initiatives by ensuring accurate reflection of structural updates in the core HR System and any integrated systems / tools.
• Maintain documentation on data processes, load procedures, and technical instructions for future reference.
• Identify opportunities for process improvements, automation, and increased efficiency in data handling.
• Ensure compliance with internal data governance and security protocols. （変更の範囲） 会社内での全ての業務 【応募要件 / Qualifications】 ＜必須 / Required＞
• Bachelor's degree in Data Science, Information Systems, Business, Computer Science, or a related field.
• 2+ years of experience in a data analyst or data operations role, preferably involving mass data handling or system updates.
• Proven experience working with large datasets and tools for data manipulation (e.g., Excel, SQL, Python, or data transformation platforms).
• Familiarity with key HRIS platforms (e.g., SAP SuccessFactors, SAP, Time & Attendance modules, Payroll knowledge).
• Strong analytical and problem-solving skills with attention to detail.
• Experience in preparing data for uploads using templates, macros, or automated tools.
• Ability to work independently and manage multiple priorities under tight deadlines.
• Language：Both business level Japanese and English＜歓迎 / Preferred＞
• Understanding of HR, payroll, or organizational management processes.
• Familiarity with change management or transformation projects involving structural reorganizations
• Experience with scripting languages (e.g., Python, VBA) for automation of repetitive tasks.
• Strong documentation and process-mapping skills.