Sr. DevOps Engineer

Senior Infrastructure Engineer – DevOps

📍 Japan | Remote/Hybrid

Our client is searching for an experienced Senior Infrastructure Engineer to join a high-growth SaaS company expanding rapidly in the Japanese market. This is a critical engineering role focused on building, scaling, and automating the cloud infrastructure that powers a globally distributed platform — giving you the opportunity to work on systems that operate across multiple regions and serve customers worldwide.

SUMMARY:

• Senior DevOps/Infrastructure role responsible for managing and evolving multi-cloud, multi-region SaaS environments across the Americas, Europe, and Asia, with a strong focus on automation and zero-touch delivery
• Hands-on technical role working with modern cloud-native tooling to ensure platform stability, availability, and performance at global scale for customers undergoing digital transformation
• Remote position based in Japan; business-level Japanese and English required, with on-call rotation responsibilities

RESPONSIBILITIES:

• Manage and evolve multi-cloud, multi-region SaaS environments including Kubernetes clusters across multiple geographies, architecting solutions that prioritize customer availability, stability, and performance at scale
• Drive continuous improvement of CI/CD infrastructure toward fully automated, zero-touch software delivery, developing internal tooling and automation that eliminates toil and accelerates development velocity
• Establish and maintain observability standards including metrics, alerting, logging, and distributed tracing across all cloud environments, proactively identifying and addressing performance bottlenecks before customer impact occurs
• Lead incident response efforts and conduct thorough root cause analysis, contributing to a culture of engineering excellence through strong documentation and process refinement
• Partner closely with application engineering teams to provide infrastructure guidance throughout the development lifecycle and contribute to on-call rotation

REQUIREMENTS:

• 5–7+ years of hands-on DevOps or Infrastructure Engineering experience with a proven track record managing production cloud environments at scale
• Strong proficiency with modern cloud infrastructure technologies including Kubernetes, Helm, Terraform, Ansible, and major cloud platforms (AWS and/or Azure)
• Demonstrated experience managing enterprise-grade data systems including NoSQL/SQL databases, key/value stores, and messaging platforms (AMQP, MQTT, etc.)
• Solid understanding of observability tooling (Prometheus, Mimir, Thanos, Grafana) and SRE best practices in high-growth SaaS environments
• Working knowledge of infrastructure-focused programming or scripting languages such as Go, TypeScript, Python, or Bash
• Fluent-level Japanese and Business-level English required

Nice to Have:

• Background in manufacturing technology or industrial operations platforms
• Experience in collaborative, fast-paced startup or scale-up environments
• Bachelor's degree in Computer Science, Engineering, or equivalent hands-on experience