AI Concierge Infrastructure Engineer

The infrastructure engineer will support AI Concierge, an automated telephone response service. Responsibilities include planning, designing, building, operating, and improving infrastructure and networks; improving existing infrastructure systems, mainly networks; evaluating and proposing whether new technologies can be adopted for the service; managing projects; and resolving operational issues through technical solutions.

Required experience includes practical knowledge of server and cloud development, experience designing, building, and operating infrastructure and networks, and experience as a team leader. The posting requires at least three years of AWS development and operations experience and at least three years of experience building and operating Linux and Windows servers and networks. Team leadership experience is required regardless of team size.

Preferred experience includes designing and building platforms using Linux or Windows servers, storage, networks, and virtualization technologies; operational design related to security; requirements definition and detailed design in system development; engineering leadership; project-member task management; and experience introducing chatbots or automated response systems. Project management experience or certification, knowledge of ASPICE and functional safety software development processes, assessor certification, and knowledge of regulations concerning cybersecurity or functional safety are also listed as preferred. The posting also welcomes people skilled at creating clear documents and training materials.

The service is part of TACT’s AI Concierge business and operates in the AI SaaS domain. The professional team is planned to have approximately four members, with open communication across the business and the ability to consult directly with management.

This is a full-time permanent position at TACT. The work location is in Jingumae, Shibuya, Tokyo, and employees are generally expected to work from the office. Working hours use a flextime system with core hours, standard working time of eight hours per day, and a 60-minute break; the stated guideline is 10:00–19:00. Annual holidays total at least 125 days, with Saturdays, Sundays, and public holidays off, plus paid leave, summer leave, year-end and New Year holidays, bereavement leave, childcare and nursing-care leave, and related short-time work arrangements. Benefits include social insurance, an employee stock ownership plan, savings and defined-contribution pension programs, qualification incentives, transportation reimbursement, a remote-worker allowance, group insurance, health checkups, and other listed benefits. Annual salary is ¥6,000,000–¥8,000,000, paid with the annual amount divided into 14 installments; the monthly amount includes deemed pay equivalent to 25 hours of work.