<p>Company Profile | 企業概要<br />A global e-commerce and technology leader operating one of Japan's most widely used loyalty point ecosystems, seeking a senior Site Reliability Engineer.<br /><br />The Role | 職務内容s<br />Working within a high-traffic, mission-critical platform that processes hundreds of thousands of transactions in real time, you will lead the stable operation and continuous improvement of core digital services. As a Senior SRE, you will define and drive SLOs/SLAs, lead incident response, oversee performance and capacity initiatives, and manage and mentor a team of SRE engineers - all while fostering a strong DevOps culture across product, infrastructure, and security teams.<br /><br />Your Skills | 応募資格<br />5+ years of hands-on experience in SRE, infrastructure engineering, or a related discipline.<br />Proven experience building and operating production systems on public or private cloud (AWS, GCP, Azure).<br />Deep expertise in Kubernetes - design, build, operation, and scaling.<br />Strong command of modern observability tooling such as Prometheus, Grafana, ELK Stack, or Datadog.<br />Solid knowledge of UNIX internals, TCP/IP networking, and HTTP protocols.<br />Experience with CI/CD pipelines (Jenkins, CircleCI, GitLab CI/CD) and scripting in Python or Shell.<br />Track record of leading production incident management end-to-end, including RCA and preventative measures.<br />Business-level English required; Japanese proficiency is a strong plus.<br /><br />Key Highlights of the Role | おすすめのポイント<br />Own reliability for one of Japan's highest-traffic consumer platforms, processing transactions at massive scale.<br />Drive meaningful SRE transformation - error budgets, toil reduction, and observability - with real organizational support.<br />Collaborate with global, cross-functional teams in a truly international engineering environment.<br />Join a company at the center of Japan's digital economy, with continued investment in its technology infrastructure.</p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>6 - 9 million yen</p><p><strong> </strong></p><p>Reference Number: 67040- 0013410548</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.</em></p><p> </p><img src="https://counter.adcourier.com/c2h3ZXRhLmxla2hyYWphbmkuMzA0NzYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">