Hariharan K

Platform Engineer - Elastic Cloud, Cloud SQL (PostgreSQL)

Talent

ChennaiMember since 29 April 2026

Elastic Cloud (SaaS)ElasticsearchKibanaCluster Provisioning & ScalingIndex Lifecycle Management (ILM)Performance TuningGoogle Cloud Platform (GCP)Cloud SQL (PostgreSQL)Datalake Loader (DLL)Data IngestionWallix (DBeaver)DockerKubernetesInfrastructure as Code (Terraform)Linux Fundamentals (CLI)API Integration (SSO - Okta)SLA ManagementTechnical TroubleshootingKnowledge-Centered Services (KCS)Log Analysis

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Elastic Cloud (SaaS)ElasticsearchKibanaCluster Provisioning & ScalingIndex Lifecycle Management (ILM)

About

Infrastructure Platform Engineer with hands-on experience administering Elastic Stack (Elasticsearch, Kibana, Elastic Cloud SaaS) and GCP Cloud SQL for PostgreSQL in mission-critical, SLA-bound SaaS environments. Proven track record executing major Elasticsearch version upgrades (v7 → v8 → v9) and PostgreSQL major-version upgrades with zero data loss and minimal downtime. Skilled in cluster provisioning, performance tuning, ILM, query optimization, backup/recovery, SSO integration (Okta), and end-to-end production troubleshooting.

Recipient of the Client Champion Award and VP Catalyst Award for engineering excellence and customer impact.

Experience

Dedicated Elastic Cloud and Cloud SQL Infrastructure Platform Engineer at Renault Nissan Technology and Business Centre India (2023-06 – Present)

Manage end-to-end infrastructure for Elastic Cloud Hosted deployments, ensuring high availability, performance optimization, and strict adherence to contractual SLAs for distributed SaaS environments.

Manage end-to-end infrastructure for Elastic Cloud Hosted deployments, ensuring high availability, performance optimization, and strict adherence to contractual SLAs for distributed SaaS environments.
Lead critical technology upgrades, including the successful end-to-end completion of seamless version upgrades for Elastic Cloud from v7 to v8 and v9, minimizing downtime and swiftly resolving deep-level technical issues.
Deploy, configure, and manage GCP Cloud SQL Postgres instances, currently spearheading an ongoing major infrastructure upgrade to PostgreSQL 16 while maintaining data integrity and integrating advanced search software technologies.
Act as a technical escalation point, troubleshooting system anomalies using Kibana and Google Cloud Logs Explorer to drive customer issues to resolution efficiently.
Implement Okta SSO for Kibana and build customized monitoring dashboards utilizing APIs, streamlining secure access and visibility for cross-functional teams.
Champion continuous improvement by documenting complex technical workflows, architectural changes, and troubleshooting steps in alignment with KCS methodology to empower both peers and customers.