Site Reliability Engineer

Date PostedJune 17, 2026LocationTokyo, JapanCompanybloomtech.incSalaryJPY 8500K - JPY 10000KTypeit (pc, web, unix) - back-end engineer it (hardware/network) - sre engineer it (hardware/network) - cloud engineer

Job Summary

We are seeking an SRE specialist to ensure infrastructure stability, optimize costs, and enhance system security. The role involves working closely with our backend team to manage AWS environments and promote DevOps practices. This is an opportunity to build and improve infrastructure foundations in a fast-growing, dynamic environment.

Responsibilities

  • AWS infrastructure design and maintenance
  • Cost optimization and performance tuning
  • Infrastructure security and alert monitoring
  • Promoting DevOps and observability practices

Required Skills

  • 3+ years AWS infrastructure experience
  • Terraform proficiency
  • 1+ year application engineering experience
  • CI/CD pipeline implementation
  • Japanese N1 proficiency

Job Details

■ Mission As an SRE, you will be responsible for tasks such as infrastructure stability, cost optimization, security, and promoting DevOps and observability. ■ Job Description - AWS infrastructure design, construction, operation, and maintenance - Infrastructure cost optimization - Performance tuning - Alert monitoring optimization - Strengthening infrastructure security (Guardduty, etc.) ■ Working Hours - 9:00 AM - 6:00 PM (8 hours/day, 1-hour break) - Flexible work system with a core time of 12:00 PM - 3:00 PM - Office presence required two days a week (Tuesday and Friday); flexible arrangements available for specific circumstances. ■ Job Requirements - 3+ years of experience as an AWS infrastructure engineer - Experience building infrastructure using Terraform - 1+ year of experience as an application engineer - Experience building CI/CD pipelines - Japanese language proficiency at N1 level (for foreign nationals) - Team leader experience (team of 3-5 people) - Empathy with the mission 'To increase the number of people who can thrive freely in the world' and the value 'FIVE GRIT' - A willingness to boldly tackle unresolved problems - Open communication that values teamwork - Flexibility to change and a willingness to embrace new technologies ■ Benefits - Comprehensive social insurance coverage - Five-Day Workweek - Congratulatory or Condolence Leave - Child-care Leave - Full-time employee status