[Hiring] [Hybrid] [JP] - Senior DevOps Engineer - Mobile Media & Data Platform
Our client is a global technology company operating in a large-scale, high-traffic online services environment, focused on delivering reliable and innovative customer-facing platforms.
We are seeking an experienced Senior DevOps Engineer to support and scale a large-scale mobile media platform that delivers personalized advertising and user engagement experiences integrated with a point/reward ecosystem.
In this role, you will lead infrastructure architecture initiatives, improve platform reliability and observability, optimize operational costs, and support high-traffic distributed systems running in cloud-native environments. You will collaborate with cross-functional and international teams to build scalable and resilient platform solutions.
Responsibilities
- Design, build, and operate scalable cloud infrastructure using GCP and Kubernetes (GKE/EKS)
- Improve platform reliability, availability, observability, and operational efficiency
- Develop and maintain CI/CD pipelines and reusable DevOps tooling
- Support distributed architectures including microservices, event-driven systems, caching, and messaging platforms
- Lead infrastructure modernization, lifecycle management, and upgrade planning with minimal service impact
- Drive incident response, root cause analysis, and production stability improvements
- Monitor infrastructure utilization and implement cost optimization strategies
- Collaborate closely with software engineers, product teams, and overseas stakeholders
- Strengthen infrastructure security posture and vulnerability remediation processes
- Support data pipeline operations using Airflow and BigQuery environments where applicable
Requirements:
- 7+ years in DevOps/SRE/Platform Engineering.
- 3+ years of deep expertise operating cloud platform (GCP) and Kubernetes (GKE/EKS) at scale.
- Deep knowledge in supporting server-side architectures (monoliths, microservices, event-driven and other distributed systems).
- Mastery of scaling patterns for large-scale, high-traffic services, including scaling across layers (web, database, logging).
- Deep middleware knowledge: distributed caching, message queues, RPC frameworks; plus networking/IAM fundamentals.
- Commitment to production service support: ensure service availability and drive recovery from system troubles as the highest priority.
- Plan and monitor infrastructure resource usage to ensure cost-effectiveness; collaborate with the team to reduce unnecessary costs where possible.
- Passionate technologist with ownership mindset; cost optimization and observability experience preferred.
Preferred Qualifications:
- Design and develop reusable DevOps libraries and CI/CD pipelines that can be easily applied across projects.
- Sharp problem-solving and business-to-tech translation; strong cross-functional leadership.
- Monitoring and alert design that considers business KPIs considered to the characteristics of the service.
- Knowledge of Airflow and DAG in a GCP BigQuery environment, and experience building data pipelines.
Languages
- English: Fluent
- Japanese: Optional / a plus
Work Environment
- Fast-paced, dynamic global environment with collaborative teams across multiple locations
Salary: ¥9M – ¥12M JPY per year
Location: Hybrid (4 days in the office, 1 day remote)
Office Location: Tokyo, Japan
Working Hours: Flexible schedule with core hours from 11:00 AM to 3:00 PM
Visa Sponsorship: Available
※Japanese language certification (such as JLPT N2) is not required for this role, as the company is a large global organization with an international working environment.
Language Requirement: English only
Apply now or contact us for further information:
Aleksey.kim@tg-hr.com