Bilingual Senior Cloud Engineer in Tokyo or Osaka

We are looking for a Cloud Engineer to join a growing Cloud Engineering team responsible for the infrastructure, reliability, scalability, and operational excellence of multiple B2B SaaS and AI-powered products.

The team supports the entire product portfolio, including both newly launched services and existing systems. You will work closely with senior engineers while taking ownership of day-to-day operations, improvements, and automation.

This is a hands-on engineering position for someone who wants to strengthen their cloud infrastructure expertise through practical experience while contributing to a rapidly growing technology organization.

Key Responsibilities

• Operate and maintain cloud infrastructure according to established procedures and Infrastructure-as-Code practices

• Implement and improve monitoring, logging, and tracing

• Maintain and enhance dashboards and alerting systems

• Perform initial incident response, troubleshooting, and issue isolation

• Work with senior engineers on root-cause analysis and post-incident reviews

• Maintain and make small-scale improvements to existing Terraform/CDK code

• Operate CI/CD pipelines and automate repetitive operational tasks

• Create and maintain technical documentation

• Collaborate with application engineers and other technical teams to improve system reliability and developer experience

Required Qualifications

• 1–3 years of hands-on experience operating and maintaining cloud infrastructure such as AWS

• Basic Linux server administration skills

• Fundamental knowledge of networking

• Ability to understand and modify existing Infrastructure-as-Code such as Terraform under appropriate guidance

• Basic debugging and troubleshooting skills

• For English-dominant candidates: fluent English and business-level basic Japanese communication skills

• For Japanese-dominant candidates: fluent Japanese and business-level basic English communication skills

Candidates are expected to be comfortable communicating in both English and Japanese, with one language at a fluent level and the other at a functional conversational level.

Preferred Qualifications

• Experience with monitoring and observability tools such as New Relic, Sentry, or CloudWatch

• Understanding or practical experience with SLI/SLO-based operations

• Automation experience using Python, Bash, or similar scripting languages

• Experience operating CI/CD pipelines such as GitHub Actions

• Experience with Docker or other container technologies

• Experience with incident response or on-call operations

• Experience with cloud cost monitoring and optimization

• AWS or other cloud-related certifications