Job Description:

Rakuten Group, Inc. is a global leader in internet services and has a diverse ecosystem spanning across e-commerce, fintech, communications and more serving approximately 1.8 billion members worldwide. Founded in Tokyo in 1997, the Group operates in over 30 countries and regions with more than 30,000 employees.

Based in Singapore's Central Business District, Rakuten Asia Pte. Ltd. serves as the regional headquarters for Asia, driving value through areas such as advertising product development, product strategy, and data management to support Rakuten Group's global ecosystem. Learn more at: https://global.rakuten.com/corp/

Our Incentive Platform Department (INPD) drives Rakuten's core loyalty and coupon product strategy, executes product development, and ensures successful implementation. We empower Rakuten's ecosystem by creating highly scalable and resilient platforms that prioritize our customers. The Coupon Platform Section is specifically responsible for developing and operating Rakuten Coupon Platform, handling massive real-time traffic daily. We contribute directly to Rakuten's growth and user experience by delivering seamless, impactful solutions.

We are seeking a Senior Site Reliability Engineer to serve as a key technical leader within our organization. You will be the architect of our platform’s reliability, partnering with engineering leadership to bridge the gap between rapid feature delivery and bulletproof system stability.

Main Responsibilities:

• Lead the architectural design and evolution of Coupon Platform infrastructure.
• Ensure systems are highly available, resilient, and scalable to support extreme traffic spikes during peak promotional seasons.
• Act as the primary technical authority. Drive the adoption of emerging technologies (e.g., Service Mesh, GitOps, AI-driven operations) to maintain competitive advantage.
• Define and own the Service Level Objectives (SLOs) and Error Budgets for the entire platform.
• Lead advanced capacity forecasting and cost optimization strategies, ensuring cloud/infrastructure spending is aligned with business growth and ROI.

Required Qualifications:

• 10+ years of experience in SRE or Systems Engineering, with at least 5+ years in a lead or principal role managing large-scale, mission-critical distributed systems.
• Demonstrated success in architecting and migrating large-scale platforms (e.g., transition to microservices, cloud migration, or major infrastructure re-platforming).
• Deep expertise in distributed systems design, performance analysis, and troubleshooting of complex inter-service dependencies.
• Strong ability to lead cross-team initiatives, drive consensus, and manage technical debt in high-pressure environments.
• Exceptional stakeholder management skills; ability to translate complex technical challenges into business risks and opportunities for senior leadership.
• Expert-level proficiency in the following domains:Languages: Java, Kotlin, and at least one scripting language (Python/Go).Orchestration/Cloud: Advanced Kubernetes (K8s) internals, Istio/Service Mesh, and GCP/Private Cloud architecture.Data/Storage: Experience in high-throughput, low-latency data stores (Cassandra, Redis, MySQL).Observability: Ability to design comprehensive observability frameworks (Prometheus, Grafana, ELK, OpenSearch).
• IaC/Automation: Terraform, Ansible, and the implementation of GitOps workflows.
• Proven ability to leverage AI/LLM-driven operations (AIOps) to synthesize complex telemetry data, automate incident remediation, and provide predictive insights for high-traffic environments.

Rakuten is an equal opportunities employer and welcomes applications regardless of sex, marital status, ethnic origin, sexual orientation, religious belief, or age.