Site Reliability Engineer

Zeals Co., Ltd.

Site Reliability Engineer at Zeals developing infrastructure for conversational AI products while maintaining reliability and performance of systems.

Posted 7/21/2026full-timeTokyo • 🇯🇵 JapanMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in software engineering and platform reliability, with a strong focus on monitoring, observability, and infrastructure design. Proficient in automation and tooling development, ensuring high availability and cost-effective solutions in cloud environments.

Highest-signal resume keywords

Software Engineering ExperienceKubernetes ExpertiseMonitoring and ObservabilityCI/CD and GitOpsCloud Platform Experience (GCP or AWS)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software EngineeringKubernetesMonitoringObservabilityCI/CDGitOpsGoBashPythonDatabase Troubleshooting

Tools & Technologies

GrafanaLokiPrometheusThanosMongoDBElasticsearchPostgresGitHub ActionsHelmArgo CD

Industry Keywords

Infrastructure EngineeringPlatform EngineeringWell-Architected PrinciplesSelf-Service ToolsHigh-Volume Traffic

Tech Stack

Tools & technologies

AWSElasticSearchGoGoogle Cloud PlatformGrafanaKubernetesMongoDBPostgresPrometheusPython

About the role

Key responsibilities & impact

Keep critical customer journeys reliable and available, and respond first when they aren't.
Join the on-call rotation for business critical services.
Own alerting and observability.
Build and operate in-house platform tooling.
Eliminate toil by turning recurring developer requests into self-service.
Drive down platform cost without trading away reliability.
Design infrastructure that scales with bursty, high-volume traffic.
Measure the platform against Well-Architected principles and act on what's weak.

Requirements

What you’ll need

3+ years in software engineering, SRE, infrastructure, or platform engineering on GCP or AWS.
Hands-on Kubernetes experience
Monitoring and observability experience (we use Grafana, Loki, Prometheus, and Thanos).
Comfortable troubleshooting databases (we run MongoDB, Elasticsearch, and Postgres).
CI/CD and GitOps experience (we use GitHub Actions, Helm, and Argo CD).
Able to write and read code for tooling and automation (we use Go, Bash, and Python).
Eligible to work in Japan, and business-level English.

Benefits

Comp & perks

Flexible working environment
Inclusive work culture