Job title: Site Reliability Engineer_SR
Job type: Permanent
Emp type: Full-time
Industry: IT & Telecommunications / IT・通信
Functional Expertise: Technical (IT) / 技術職(IT)
Salary: Negotiable
Job published: 2026-04-30
Job ID: 71717

Job Description

Career Opportunity for a Site Reliability Engineer in Japan!

 

■ Site Reliability Engineer

 

■ Company Overview

A cutting-edge space technology company in Japan working on its own satellite constellation and data platforms, combining satellite technology, cloud systems, and AI to solve real-world challenges such as disaster monitoring and infrastructure analysis.

 

■ Your Role and Responsibilities 

● Design, build, and operate satellite ground system infrastructure in cloud environments using Terraform, including the design, deployment, and management of Kubernetes clusters, as well as improving development productivity through CI/CD pipeline optimization. 

● Lead the design, validation, and implementation of a Disaster Recovery (DR) site architecture, driving the project in collaboration with cross-functional stakeholders. 

● Plan and implement security enhancement measures and ensure compliance with relevant regulatory and organizational requirements. 

● Strengthen monitoring and alerting systems to support large-scale satellite fleet operations. 

● Continuously improve operational efficiency through the use of AI agents for automation, cost optimization, and performance tuning.

 

■ Experience and Qualifications

● 3+ years of experience as an Infrastructure Engineer, Cloud Engineer, SRE, or DevOps Engineer 

● Experience building cloud-native systems using Kubernetes and Docker on a major cloud provider (AWS, Google Cloud, or Azure) ● Experience with Infrastructure as Code tools such as Terraform or OpenTofu 

● Strong knowledge of computer networks 

● Software development experience (requirements gathering, design, programming, maintenance) 

● Familiarity with CI/CD tools and processes (e.g., GitHub Actions, Cloud Build, Cloud Deploy, or equivalent) 

● Experience developing and operating systems in Linux environments with an understanding of HTTP/HTTPS, DNS, load balancers, and databases 

● Over 6 months of experience using major AI coding assistants (e.g., Claude Code, Codex, Gemini, Cursor) 

● Willingness to respond flexibly to occasional weekend or nighttime incidents (about once per month) 

● Comfortable communicating in English, both written and spoken 

● Able to commute to the Tokyo headquarters at least once per week

 

■ Additional Preferred Qualifications

● Experience in defense, aviation, or space-related system development 

● Experience adopting or operating observability tools or systems 

● 3+ years of programming experience in C, C++, Go, Rust, or Python 

● Experience with on-premises system construction or operation 

● Experience in cloud cost optimization (FinOps), performance tuning, incident response, and DR site design 

● Experience in system renewal/migration projects for mission-critical systems or multi-region architectures 

● Business-level Japanese proficiency (JLPT N1 or equivalent, for non-native speakers)

 

■ Good Reasons to Join

● Opportunity to work at the intersection of satellite technology, cloud platforms, and AI

 

■ Work Location

Tokyo, Japan
 

Details will be provided during the meeting.