Technical Customer Support Manager L1

Day Zero Diagnostics
Day Zero Diagnostics

IT, Customer Service · Full-time

Tokyo, Japan

Posted on Jul 23, 2026
Role purpose

The Support Center Manager is responsible for the day-to-day performance and management of a team of support agents, ensuring high-quality, timely and efficient handling of customer requests. The role combines people leadership, operational control & metrics continuous monitoring, and continuous improvement to deliver excellent customer experience while meeting SLOs, SLAs and productivity targets.

Key responsibilities

  • Team leadership & people management-Lead, motivate and organize a team of support agents, Support recruitment & onboarding
  • Coach & develop team members (objective definitions, feedback, development, training needs & plans
  • Operational supervision
  • Monitor real-time activity across all channels (phone, email, chat, portal) and adjust resources accordingly.
  • Ensure cases/tickets are properly triaged, routed, and prioritized according to defined rules.
  • Act as the first point of operational escalation for complex or sensitive customer issues.
  • Coordinate with Level 2 and Level 3 support and other internal teams to resolve escalated cases.
  • Ensure compliance with standard operating procedures, scripts, and knowledge base.
  • Customer experience & quality
  • Supervise the quality of customer interactions through regular call and ticket monitoring.
  • Use customer feedback (surveys, complaints) to identify improvement opportunities.
  • Drive a customer-centric mindset within the team, ensure professional, and solution-oriented communication.
  • Implement corrective actions when quality or customer satisfaction targets are not met.
  • Performance management & reporting
  • Monitor and analyze KPIs (e.g. abandoned call rate, service level, average handling time…)
  • Communicate on regular basis operational reports (daily/weekly/monthly)
  • Identify trends and root causes for deviations from targets and define action plans.
  • Follow up on action plans and report progress to management.
  • Process & continuous improvement
  • Identify process gaps, inefficiencies, and recurring issues impacting customers or agents.
  • Propose and help implement improvements to workflows, scripts, and knowledge base content.
  • Participate in projects related to new tools, processes, or organizational changes affecting the support center.
  • Contribute to UAT and pilots for new features and support tools.
  • Compliance & governance
  • Ensure compliance with internal policies and external regulations (e.g. data protection, quality, regulations).
  • Guarantee accurate documentation of cases and proper use of CRM/ticketing systems.
  • Represent the support center in cross-functional meetings when required.

Education & experience

  • Bachelor’s degree in business, IT, Customer Service Management, or equivalent experience.-3–5 years of experience in customer support / contact center / service desk environment.
  • 2-3 years in a managing position such as team lead or supervisory role

Skills

  • Strong people management and coaching skills.-Excellent communication skills (written and oral).
  • Good analytical skills and ease with KPIs, dashboards, and reports.
  • Solid knowledge of customer service processes; experience with CRM / ticketing tools (e.g. Salesforce, ServiceNow, Zendesk, etc.).
  • Ability to manage priorities and make decisions in a fast-paced environment.
  • Intermediate English