Arunachalam Ramanathan

Arunachalam Ramanathan

Cloud Infrastructure Engineer
Chennai , Tamil Nadu , India
Tamil, Telugu, English, Hindi
Available Now
Full-time Hybrid

About Me

Cloud & Data Platform Executive with 17+ years of experience leading large-scale cloud transformation, platform engineering, and data modernization initiatives across global enterprises. Proven ability to drive multi-clo…

Experience

Cloud Infrastructure Specialist / Senior Platform Engineer

UST Global - Chennai, India · Chennai , Tamil Nadu , India
Jul 2013 - Feb 2023 · 9 years 6 months

Directed enterprise-wide cloud transformation initiatives, migrating legacy Oracle workloads to modern cloud platforms, achieving 30% improvement in operational efficiency, Defined and executed multi-cloud architecture strategy, enabling scalability, resilience, and cost optimization across AWS, Azure, and GCP, Built and scaled platform engineering and DevOps capabilities, reducing deployment times and improving release reliability, Led cross-functional teams across cloud, database, and data engineering domains, ensuring alignment with business and technology goals, Partnered with stakeholders, delivery heads, and global teams to drive program execution and innovation adoption, Championed Agile methodologies, improving delivery velocity, predictability, and team performance, Architected and managed large-scale cloud environments, Led Oracle database modernization, including upgrades to Oracle 19c, RAC tuning, and performance optimization, Designed and implemented CI/CD pipelines, enabling automated and reliable deployments, Built scalable data pipelines using PySpark and Databricks, aligned with Medallion Architecture (Bronze/Silver/Gold), Introduced AI/LLM-based automation, significantly reducing manual operational workloads, Implemented observability platforms using Prometheus and CloudWatch for proactive monitoring and alerting

Cloud Infrastructure Specialist / Senior Platform Engineer

UST Global – Chennai, India
Jul 2013 - Feb 2023 · 9 years 7 months

Directed enterprise-wide cloud transformation initiatives, migrating legacy Oracle workloads to modern cloud platforms, achieving 30% improvement in operational efficiency
Defined and executed multi-cloud architecture strategy, enabling scalability, resilience, and cost optimization across AWS, Azure, and GCP
Built and scaled platform engineering and DevOps capabilities, reducing deployment times and improving release reliability
Led cross-functional teams across cloud, database, and data engineering domains, ensuring alignment with business and technology goals
Partnered with stakeholders, delivery heads, and global teams to drive program execution and innovation adoption
Championed Agile methodologies, improving delivery velocity, predictability, and team performance
Architected and managed large-scale cloud environments: AWS EC2, S3, RDS, EKS, DynamoDB, KMS, EFS
Architected and managed large-scale cloud environments: Azure AKS, ADF, ARM Templates, Azure Firewall
Architected and managed large-scale cloud environments: GCP GKE, Dataproc, Compute Engine
Led Oracle database modernization, including upgrades to Oracle 19c, RAC tuning, and performance optimization
Designed and implemented CI/CD pipelines, enabling automated and reliable deployments
Built scalable data pipelines using PySpark and Databricks, aligned with Medallion Architecture (Bronze/Silver/Gold)
Introduced AI/LLM-based automation, significantly reducing manual operational workloads
Implemented observability platforms using Prometheus and CloudWatch for proactive monitoring and alerting

Principal Infrastructure Engineer

Mphasis – Chennai, India
Oct 2012 - Apr 2013 · 6 months

Led database and infrastructure optimization initiatives for enterprise systems
Improved system reliability, performance, and operational efficiency

Principal Infrastructure Engineer

Mphasis - Chennai, India
Oct 2012 - Apr 2013 · 6 months

Led database and infrastructure optimization initiatives for enterprise systems, Improved system reliability, performance, and operational efficiency

Specialist – Database & Infrastructure

Wipro Technologies – Bengaluru, India
Sep 2011 - Jul 2012 · 10 months

Managed enterprise Oracle environments and identity management systems
Delivered production support, monitoring, and backup solutions

Specialist - Database & Infrastructure

Wipro Technologies - Bengaluru, India
Sep 2011 - Jul 2012 · 9 months

Managed enterprise Oracle environments and identity management systems, Delivered production support, monitoring, and backup solutions

Senior Specialist – Oracle DBA (L3)

DCM Data Systems – Gurgaon, India
Jul 2010 - Aug 2011 · 1 year 1 month

Provided L3 support for global clients, focusing on performance tuning and incident resolution
Optimized enterprise databases for high availability and performance

Senior Specialist - Oracle DBA (L3)

DCM Data Systems - Gurgaon, India
Jul 2010 - Aug 2011 · 1 year 1 month

Provided L3 support for global clients, focusing on performance tuning and incident resolution, Optimized enterprise databases for high availability and performance

Senior Systems Engineer

GAVS Information Systems – Singapore
Aug 2008 - Jul 2009 · 11 months

Designed and managed enterprise database systems
Resolved critical production and performance issues

Senior Systems Engineer

GAVS Information Systems - Singapore
Aug 2008 - Jul 2009 · 10 months

Designed and managed enterprise database systems, Resolved critical production and performance issues

Technical Support Specialist

Sutherland Global Services – Chennai, India
Oct 2004 - Jul 2008 · 3 years 9 months

Delivered technical support for US-based clients
Managed database operations and documentation

Technical Support Specialist

Sutherland Global Services - Chennai, India
Oct 2004 - Jul 2008 · 3 years 9 months

Delivered technical support for US-based clients, Managed database operations and documentation

Certifications

Data Integration with ADF

Coursera · Chennai , Tamil Nadu , India · 2024

Certified Scrum Master

Scrum Alliance · Chennai , Tamil Nadu , India · 2024

Devops Certification

University of Madras · Bengaluru , Karnataka , India · 2019

Azure Data Engineering

Coursera · Chennai , Tamil Nadu , India · 2018

Skills

Cloud Strategy & Enterprise Architecture (AWS Azure GCP) Platform Engineering & DevOps Transformation Data Engineering & Modern Data Platforms (Databricks PySpark ETL) Database Modernization (Oracle RAC Performance Engineering) AI-Driven Automation & Operational Excellence Observability & Reliability Engineering (SRE Practices) Agile Program Leadership & Global Delivery Cost Optimization & FinOps AWS: EC2 S3 RDS EKS DynamoDB KMS EFS Azure: AKS ADF ARM Templates Azure Firewall GCP: GKE Dataproc Compute Engine Oracle 19c RAC tuning CI/CD pipelines PySpark Databricks Medallion Architecture (Bronze/Silver/Gold) AI/LLM-based automation observability platforms using Prometheus and CloudWatch Cloud Strategy Enterprise Architecture AWS Azure GCP Platform Engineering DevOps Data Engineering Databricks PySpark ETL Oracle RAC Performance Engineering AI Automation Observability Reliability Engineering SRE Agile Program Leadership FinOps EC2 S3 RDS EKS DynamoDB KMS EFS AKS ADF ARM Templates Azure Firewall GKE Dataproc Compute Engine Oracle 19c CI/CD Prometheus CloudWatch Docker Git Infrastructure Automation SQL Server JIRA Scrum Kubernetes AWS ECS OCI Autonomous Database Azure Data Factory
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