Job Description:

Job Title: Staff Engineer, SOC Platform & Tools Group
Department: Cyber Defense Operations Section
Location: Bangalore, India

About the Team/Department:

Position Summary:

We are seeking a hands-on Senior SOC Platform Engineer to build, operate, and scale the platforms powering our detection and response capabilities. This is an engineering-focused role—not an analyst or shift-monitoring role. You will own the end-to-end telemetry lifecycle, from log ingestion and pipeline routing to SIEM/SOAR infrastructure management. You will bridge the gap between network operations, security analysts, and platform engineering to ensure high-fidelity data availability at scale.


Key Responsibilities:

• SIEM & SOAR Engineering: Architect and manage clustered, multi-site deployments of Splunk/Elastic and SOAR platforms. Own the lifecycle, performance tuning, and automation playbook development to drive down MTTR.

• Telemetry Pipeline (Cribl): Operate Cribl Stream/Edge to parse, filter, mask, and enrich data streams. Implement intelligent routing to optimize ingest costs and enable data replay for investigations.
• Log Collection & Onboarding: Architect high-volume syslog tiers (rsyslog/syslog-ng). Own the end-to-end onboarding of diverse telecom, network, cloud, and enterprise sources, ensuring alignment with CIM/ECS and MITRE ATT&CK.
• Platform & Infrastructure Ops: Manage the full stack across on-premises and GCP environments. Use IaC (Terraform) and configuration management (Ansible) to automate platform health, capacity planning, and disaster recovery.
• Systems Engineering: Administer enterprise Linux (RHEL/Ubuntu) at scale. Develop custom operational tooling and health-check scripts using Python and Bash. Install, configure, and maintain Linux servers and operating systems across on-premises and cloud environments. Monitor system performance, disk space, memory usage, and network connectivity; troubleshoot and resolve issues. Perform regular backups, disaster recovery planning, and ensure business continuity.
• Kubernetes: Deploy and manage containerized applications using Docker and Kubernetes, ensuring high availability and fault tolerance. Implement CI/CD pipelines with Kubernetes integration for automated testing, building, and deployment workflows. Configure service discovery, load balancing, ingress controllers, and persistent storage solutions.

Required Qualifications

• Experience: 10+ years in security/SOC engineering, log management, or infrastructure engineering.
• SIEM/SOAR Expertise: Hands-on production experience administering Splunk/Elastic/SOAR (clustering, upgrades) and SOAR platforms (playbook development/connectors).
• Pipeline Proficiency: Expert-level experience with log pipeline tooling (Cribl Stream/Edge preferred; Logstash/Vector/Kafka considered).
• Infrastructure Skills: Strong Linux administration, scripting (Python/Bash), and syslog fundamentals (TLS, load balancing, high-volume tuning).
• Data Onboarding: Proven ability to write complex regex-based parsers, field extractions, and normalization logic.
• Cloud & Networking: Working knowledge of GCP services (Logging, IAM, GKE, Networking) and solid grasp of networking fundamentals (TCP/UDP, DNS, routing, packet capture).
• Communication: Excellent written communication and disciplined documentation habits.

Preferred Qualifications:

• Domain Expertise: Experience in a telecom or service provider environment (Mobile Core, 5G, IMS/VoLTE, SS7/Diameter, OSS/BSS).
• DevOps/Automation: Experience with Kubernetes/Helm, Terraform, and Ansible in hybrid environments.
• Detection Engineering: Exposure to SPL, ES|QL, KQL, Sigma rules, and data lake/object storage tiering architectures.
• Certifications: Splunk Architect, Elastic Certified Engineer, Cribl Certified Admin, RHCE/RHCSA, Google Professional Cloud Security Engineer, AWS Professional certificate.

RAKUTEN SHUGI PRINCIPLES:

Our worldwide practices describe specific behaviours that make Rakuten unique and united across the 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 success in unknown territory.

• Maximize Customer Satisfaction. The greatest satisfaction for workers in a service industry is to see their customers smile.

• Speed!! Speed!! Speed!! Always be conscious of time. Take charge, set clear goals, and engage your team.

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