Senior Site Reliability Engineer, Booking Services Search Group - Search Department (SED)
LocationTokyo, Japan
Typefull-time
SenioritySenior
Experience8+ yrs
DepartmentSearch Department
Company size10,000+ people
First seenOct 6, 2026 · 5d ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Must have11
More than 8 years of work experience working in IT
Excellent problem solving and troubleshooting skills
Excellent teamwork and communication skills
Strong Linux experience with understanding of system performance and reliability
Experience analyzing and tuning performance of distributed systems
Experience deploying and using configuration management tools (e.g., Chef, Ansible)
Experience with observability tools (e.g., Prometheus, Grafana, Loki)
Experience with container technologies and orchestration (Kubernetes)
Experience automating tasks using shell scripts and/or Python
Strong understanding of computer networking and common protocols
Experience managing services built with Java
Nice to have5
Experience automating processes for software testing and deployment (Jenkins)
Experience working with Spark, Solr, Cassandra, or Kafka
Experience with cloud storage solutions (Ceph, S3, MinIO)
Experience working with a Git-based workflow
Software development experience
Skills
Linux
Chef
Ansible
Prometheus
Grafana
Loki
Kubernetes
Shell scripting
Python
Java
Jenkins
Spark
Solr
Cassandra
Kafka
Ceph
S3
MinIO
Git
Job Description:
Business Overview
Rakuten is one of the biggest marketplaces of Japan and is the largest internet ecosystem with a wide range of services ranging from e-Commerce, Travel, Banking, Fintech, Food Delivery, Golf, Insurance, Instant Messaging, Mobile Network etc. Rakuten has over 140 services globally. Our mission is to empower people and society through the internet while aiming at becoming the Global Innovation Company.
Department Overview
Search Department (SED) is part of the AI Engineering Supervisory Department (AIESD) under AI & Data Division (AIDD) in Rakuten. Search Department focuses on Search, Discovery, and Navigation experience for users of Rakuten. We in Search Department help demand meet supply through our services that are engineered for scale, performance, and ease of use. We support 20 plus Rakuten Businesses across three different continents, 50 plus user functions and over a billion active users annually generating over two Billion dollars in revenue directly from us. The Booking Service Search group is responsible for delivering mission critical Rakuten Travel and Leisure businesses.
Position:
Why We Hire
We are responsible for the reliability of large-scale distributed Search platform that empower one of the biggest e-commerce of Japan and enables Rakuten ecosystem services worldwide. Rakuten Search Department is constantly striving to challenge what existing search technologies can do and going beyond. We are looking for a highly motivated site reliability engineer with commitment to customer satisfaction and a strong desire to create highest-quality Search platform for Rakuten Services.
Position Details
Responsibilities (includes but are not limited to):
•
Take part in the design and deployment of production environment for new clients, from hardware to service level
•
Actively monitor production system, including on-call
•
Quickly react to issues, report, triage, troubleshoot and assist peers
•
Handle operations like Production releases, including nighttime operations
•
Drive continuous improvement of our tooling and automation stacks through innovation and collaboration
•
Collaborate with product managers, software engineers, and quality assurance teams to identify testing requirements, design and conduct relevant plans (including performance, security, fire drills)
Mandatory Qualifications:
•
More than 8 years of work experience working in IT
•
Excellent problem solving and troubleshooting skills
•
Excellent teamwork and communication skills
•
Strong Linux experience with understanding of system performance and reliability
•
Experience analyzing and tuning performance of distributed systems
•
Experience deploying and using configuration management tools (e.g., Chef, Ansible)
•
Experience with observability tools (e.g., Prometheus, Grafana, Loki)
•
Experience with container technologies and orchestration (Kubernetes)
•
Experience automating tasks using shell scripts and/or Python
•
Strong understanding of computer networking and common protocols
•
Experience managing services built with Java
Desired Qualifications:
•
Experience automating processes for software testing and deployment (Jenkins)
•
Experience working with Spark, Solr, Cassandra, or Kafka
•
Experience with cloud storage solutions (Ceph, S3, MinIO)