Internal Systems Engineer

This full-time internal systems engineering role supports a seven-year, company-wide DX project to rebuild and integrate the systems underlying a business foundation with sales at the scale of hundreds of billions of yen. The program covers core business systems, CRM/SFA, customer management, and data-utilization platforms, with development performed from scratch. The project is in its middle phase, with releases progressing and requirements definition through design and development accelerating toward the largest planned release in 2027.

The role organizes and defines business requirements by structuring operational issues and needs through discussions with planning teams and business users. Responsibilities include analyzing current As-Is operations, designing data-driven To-Be processes through business process redesign, defining system requirements, preparing basic designs, coordinating the development and infrastructure teams, and directing the rollout of designs toward implementation. The position also covers milestone setting, scope and progress management, overall project advancement, and architecture planning to maintain consistency between systems and support future expansion.

Required qualifications are at least three years of practical system development experience, experience developing or maintaining and operating business systems such as core systems or CRM, involvement in upstream processes including requirements definition or basic design, and experience coordinating or negotiating with stakeholders. Experience as a leader or sub-leader, direct interaction with business departments as an internal systems engineer, customer-management system experience such as CRM/SFA, and development or construction experience in a cloud environment such as AWS are welcomed.

The development environment includes React for the frontend, Java and Spring Boot for the backend, AWS for infrastructure, Docker, Git, and VSCode for development and operations, and Confluence, Figma, and Backlog for project management and collaboration.

The position is assigned to USEN's Digital Strategy Division, Business Systems Development Department. The team has 59 members, including 11 employees and 48 outsourced members. The work involves coordinating with a diverse team, discussing issues constructively, building agreement among stakeholders, and progressing the project collaboratively. After joining, an approximately 2.3-month onboarding period provides staged familiarization: initial understanding of the overall project and assigned area under a section manager, practical work alongside experienced members from the second month, and ownership of a specific area from the third month.

The work location is Meguro Central Square, 3-1-1 Kamiosaki, Shinagawa-ku, Tokyo. The company uses a flextime system without core hours; standard working time is 7 hours 30 minutes per day with a 60-minute break, and 9:30–18:00 is a common schedule. Remote work is used by more than half of employees, and hybrid attendance is common. There is currently no specific limit on remote frequency when office attendance can be adjusted for in-person coordination, subject to proficiency and project circumstances.

Annual compensation is JPY 5,000,000–8,000,000. One fourteenth of the annual salary is paid monthly, with an additional one fourteenth paid in June and December. The annual salary is revised once a year in November, and monthly compensation includes an allowance corresponding to 25 hours of deemed work. Annual holidays exceed 125 days, with Saturdays, Sundays, and public holidays off, plus paid leave, summer leave, year-end and New Year leave, refresh leave, condolence leave, childcare and nursing leave, and related reduced-hours arrangements. Benefits include social insurance, an employee stock ownership plan, savings and defined-contribution pension plans, qualification incentives, transportation expenses, a remote worker allowance, group insurance, health checkups, selected leave and support programs, and service discounts.