<p><strong>Company Profile</strong></p><p>Growing B2B SaaS provider delivering cloud-based solutions to enterprise customers is seeking an SRE / Ops Engineer to lead their infrastructure and operations domain.</p><p><strong> </strong></p><p><strong>The Role</strong></p><ul><li>Lead the entire AWS-based infrastructure from design to operations (VPC, EKS/ECS, RDS, CloudFront, IAM, WAF, etc.) for a production SaaS platform.</li><li>Drive Infrastructure as Code implementation using Terraform/AWS CDK and build CI/CD pipelines (GitHub Actions, Bitbucket Pipelines, CodePipeline).</li><li>Establish SRE practices including log aggregation, monitoring, alerting systems, and incident response frameworks.</li><li>Conduct operations testing of offshore Dev team deliverables to ensure quality from a customer perspective.</li><li>Implement security measures including vulnerability management, IAM/WAF design, and change management processes.</li><li>Collaborate with Customer Success teams on first-line response, issue triage, and log analysis infrastructure.</li><li>Build product metrics infrastructure to automatically collect usage and performance data.</li><li>Reporting directly to leadership with a clear career path to grow into Head of SRE as the team scales.</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><ul><li>Production operations experience with AWS (VPC, EKS/ECS, RDS, CloudFront, IAM, WAF, etc.).</li><li>IaC design and operations experience using Terraform/AWS CDK.</li><li>CI/CD pipeline construction experience using GitHub Actions/Bitbucket Pipelines/CodePipeline.</li><li>Container orchestration operations experience with Kubernetes.</li><li>Monitoring, alerting, and log aggregation operations experience (CloudWatch, CloudTrail, OpenSearch, etc.).</li><li>Understanding of security best practices (vulnerability management, patch application, change management).</li><li>Practical Scrum development experience (as Scrum Master or Developer).</li><li>Preferred: Multi-tenant/SOC2/ISO27001 compliance experience, offshore team collaboration in English, Python/shell scripting.</li></ul><p> </p><p><strong>Key Highlights of the Role </strong></p><ul><li>Own end-to-end infrastructure with full authority from design to operations-rare opportunity to build 0→1 in a growing SaaS environment.</li><li>Direct impact on customer value through operations testing and SRE improvements that balance quality with delivery speed.</li><li>Clear growth path from individual contributor to Head of SRE, with opportunity to launch and scale your own team.</li><li>Work with cutting-edge DevOps practices: Terraform, Kubernetes, SLI/SLO design, modern incident management.</li><li>Full remote work with flexible hours (9:00-18:00 flextime)-results-oriented culture without location or time constraints.</li><li>Global collaboration experience working with offshore development teams.</li></ul><p> <strong> </strong></p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>9 - 12 million yen</p><p><strong> </strong></p><p>Reference Number: 06940-0013360778</p><p> </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><img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjYxNjc2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">