Site Reliability Engineer

Cloud Site Reliability Engineer (SRE)

Why should you choose us

Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industry's pursuit of rapid innovation and growth. Based on proven modern infrastructure practices, its open interface platforms make it possible to launch and operate advanced mobile services in a fraction of the time and cost of conventional approaches, with no compromise to network quality or security. Rakuten Symphony has operations in Japan, the United States,Singapore, India, South Korea, Europe, and the Middle East Africa region. For more information, visit: https://symphony.rakuten.com

Building on the technology Rakuten used to launch Japan'snewest mobile network,we are taking our mobile

offering global.

To support our ambitions to provide an innovative cloud-native telco platform for our customers, Rakuten Symphony is lookingto recruit and develop top talent from around the globe. We are lookingfor individuals to join our team across all functional areas of our business from sales to engineering, support functions to product development.

Let's buildthe future of mobile telecommunications together!

About Rakuten Group, Inc. (TSE: 4755) is a global leader in internet services that empower individuals, communities, businesses and society. Founded in Tokyo in 1997 as an online marketplace, Rakuten has expanded to offer servicesin e-commerce, fintech,digital content and communications to approximately 1.9 billion members around the world. The Rakuten Group has over 30,000 employees, and operations in 30 countries and regions. For more information visit https://global.rakuten.com/corp/.

Job Summary :

Engineering and operations of telecom cloud platform.

We are promoting in-houseoperation, and are responsible for design, verification, deployment in commercial environments, and operational work while improving the efficiency of day-to-day operations. As a technical leader, we expect him/her to proactively promote business improvements and develop team members. The main stakeholders are vendors who provide cloud platforms as products.

Also, the departments responsible for telecommunications applications, which are users of the cloud platform we provide, and the vendors that provide them.

Required Skills & Experience:

• Deep knowledge of Kubernetes and container orchestration.
• Advanced Linux system administration and troubleshooting skills.
• Automation development expertise(e.g., Ansible, Python).
• Networking fundamentals for cloud and telecom environments.
• Strong analytical and problem-solving abilities.
• Effective leadership and communication skills.

Mandatory Qualifications:

• 3 to 8 years of experience designing, building, and operating telecom clouds (on-premises private clouds).
• Certified Kubernetes Administrator (CKA) or equivalent certification.
• Relevant Linux certifications (e.g., RHCSA, RHCE)
• Extensive experience with Kubernetes, including deploying, managing, and troubleshooting clustersin production.
• Strong Linux expertise, including experience with performance tuning, troubleshooting, and scripting.
• Proven ability to create detailed technical documentation, including requirements, HLD, and LLD documents.
• Strong troubleshooting skills across hardware (servers), OS (Linux), networks, Kubernetes, and cloud platform software.
• Proven experience in incident management and root cause analysis in production environments.
• Development expertise in operational efficiency and automation tools.
• Proven management skills to lead operations as a technical leader, including progress and risk management.

Desired Qualifications:

• Expertise in hybrid cloud environments, integrating on-premises privateclouds with publiccloud services.
• Familiarity with Continuous Integration/Continuous Deployment (CI/CD)pipelines and toolslike Jenkins, GitLab.
• Understanding of observability practices, including experience with Grafana for visualization and Prometheus for monitoring metrics.
• Strong understanding of virtualization technologies like VMware or KVM.

RAKUTEN SHUGI PRINCIPLES:

Our worldwide practices describe specificbehaviours that make Rakuten uniqueand united acrossthe world. We expect Rakuten employees to model these 5 Shugi Principles of Success.

• Always improve,always advance. Only be satisfied with complete success- Kaizen.
• Be passionately professional. Take an uncompromising approach to your work and be determined to be the best.
• Hypothesize - Practice - Validate - Shikumika. Use the Rakuten Cycle to successin unknown territory.
• Maximize CustomerSatisfaction. The greatestsatisfaction for workersin a service industry is to see their customers smile.
• Speed!! Speed!!Speed!! Always be consciousof time. Take charge, set clear goals,and engage your team.