Praveen Kulandai Arasu
Pune
Summary
Platform Support Lead and Data Operations Engineer with over 11 years of experience managing large-scale IT support, Data lake architectures, and cloud data platforms across AWS and Snowflake. Proven track record running high-concurrency production environments, stabilizing complex ingestion pipelines (2,500+ tables/day), and driving significant cloud cost savings through automated resource optimization. Expert in ITIL-driven incident/problem management, workload automation, and cross-functional leadership, bridging the gap between core data engineering and modern, AI-driven cloud infrastructure.
Overview
11
11
years of professional experience
4
4
Certificate
Certification
- AWS Certified Machine Learning Engineer – Associate
- SnowPro Core Certification - Snowflake
- AWS Certified Cloud Practitioner
- AWS Certified AI Practitioner
Work History
Senior Associate - Lead
TIAA
Pune
12.2021 - Current
- Platform Support Lead – Enterprise Data Cloud (Jan 2024 – Present) * Lead a team of 7 platform support engineers in a high-concurrency operational model, owning SLAs, capacity planning, and incident response for the AWS-hosted Enterprise Data Cloud (EDC) platform.
• Ensure stable execution of 2,500+ daily table loads across hydration and data product layers, improving platform reliability and on-time load completion.
• Support high-volume ingestion pipelines utilizing Apache Airflow and AWS Glue into an Apache Iceberg data lake, aggressively reducing ingestion failures via proactive performance tuning.
• Manage Snowflake external tables over Iceberg storage, optimizing virtual warehouses and query patterns to balance compute performance with infrastructure costs.
• Oversee event-driven handshakes between ingestion layers and data products using AWS Lambda and Kafka, monitoring topic lag to completely eliminate downstream data drops.
• Maintain production Snowflake data products built with complex stored procedures, aligning compute patterns with warehouse sizing and scheduling strategies.
Senior Associate – Data & Cloud Operations (Dec 2021 – Dec 2023) * Spearheaded cloud cost-reduction initiatives by implementing auto-scaling and proactive monitoring for Snowflake multi-cluster warehouses and AWS EMR clusters, eliminating resource overruns.
• Built interactive Power BI dashboards integrated with ServiceNow APIs to track platform KPIs, incident trends, and problem management lifecycles, enabling leadership to surface and resolve recurring systemic bottlenecks.
• Designed a Python and Power BI validation framework to compare job runs, data latency, and calculations between legacy Cloudera Hadoop and Snowflake during a major cloud migration phase.
• Directed daily production and Disaster Recovery (DR) operations, overseeing 15,000+ automated workflows across Autosys, Control-M, and Apache Airflow environments.
• Developed targeted Splunk dashboards and AppDynamics alerts to rapidly detect data anomalies, substantially lowering the Mean Time to Detection (MTTD) for critical financial reporting applications.
Authorized Officer
UBS
Pune
02.2019 - 12.2021
- Served as a core technical resource for migrating legacy banking systems to distributed Hadoop architectures (HDFS, Hive, Spark), significantly driving platform performance and scalability upgrades.
• Provided Tier-3 production application support for high-throughput web and financial platforms under strict 24/7 SLAs, swiftly mitigating upstream and downstream data feed disruptions.
• Tuned SQL queries, optimized shell scripts, and streamlined batch schedules to compress processing windows and clear downstream operational bottlenecks.
• Led critical incident resolution efforts with cross-functional global teams and authored detailed Root Cause Analyses (RCAs) to prevent problem recurrence in line with ITIL best practices.
Associate Engineer
Cognizant Technologies Solutions
Chennai
08.2018 - 02.2019
- Delivered L2/L3 application support and minor system enhancements for enterprise platforms, ensuring uninterrupted operations, rapid issue resolution, and smooth release deployments.
- Monitored complex batch schedules and multi-system dependencies, tightly coordinating with development and infrastructure teams to preserve SLA compliance.
Software Engineer
HCL Technologies
Chennai
02.2015 - 08.2018
- Optimized enterprise job schedules and dependency chains across staging and production environments to minimize nightly batch execution windows and elevate on-time completion rates.
• Diagnosed and resolved recurring database and application faults, driving down repetitive incident ticket volumes.
• Executed regular software patch deployments, system upgrades, and platform infrastructure health checks to ensure strict operational compliance and stability.
Tools And Technologies
· Cloud & Data Lake Platforms: AWS (EC2, EMR, Glue, Lambda), Snowflake (Multi-cluster Warehouses, External Tables, Stored Procedures), Apache Iceberg, Hadoop Ecosystem (HDFS, Hive, Spark).
· Data Engineering & Orchestration: Large-scale batch/streaming ETL/ELT pipelines, Apache Airflow (DAG design), Kafka (eventing, topic lag monitoring & handshakes).
· Workload Automation: Autosys, Automation Anywhere (RPA).
· Programming & Databases: Python, SQL (Query tuning, Performance optimization), Unix Shell Scripting.
· Monitoring & ITSM: Splunk (Dashboard creation), AppDynamics, ServiceNow APIs, ITIL-based Incident/Problem/Change Management (RCA ownership).
· Analytics & Reporting: Power BI (DAX, operational KPIs, migration validation reporting).
Key Projects And Achievements
- Cloud Cost Optimization, Spearheaded initiatives to reduce cloud costs by implementing auto-scaling for Snowflake and AWS EMR, achieving a reduction in operational costs without compromising performance.
- Power BI Dashboards for Incident & Problem Management, Developed interactive dashboards to provide actionable insights from ServiceNow data, helping to reduce system failures and improve incident resolution.
- Hadoop to Snowflake Migration Dashboard, Led the development of a Power BI dashboard to compare job runs between the legacy Hadoop environment and the new Snowflake cloud environment during migration, identifying performance gaps and ensuring a smooth transition.
Timeline
Senior Associate - Lead
TIAA
12.2021 - Current
Authorized Officer
UBS
02.2019 - 12.2021
Associate Engineer
Cognizant Technologies Solutions
08.2018 - 02.2019
Software Engineer
HCL Technologies
02.2015 - 08.2018
Bachelor of Engineering - Electronics and Communication Engineering
Akshaya College of Engineering & Technology
Education
Bachelor of Engineering - Electronics and Communication Engineering
Akshaya College of Engineering & Technology
Coimbatore04-2014
Professional Development
- Regular participation in webinars and workshops related to Cloud Technologies, Data Engineering, and Automation Tools.
- Continuously enhancing skills in cloud architecture, performance optimization, and data visualization.