Lakshmi Narayan work email
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SummaryAccomplished Big Data Expert with proven track record of multiple end-to-end implementations of high-volume data engineering solutions in Hadoop Data Lake / Oracle / DB2 / Unix environments. Forward thinking problem solver with expertise in transitioning ETL solutions and migrating Data Warehouse & ODS data into Hadoop Data Lake leveraging Hadoop ecosystem tools. Highly experienced in managing solution delivery of full life cycle large global programs delivered from onshore and offshore primarily focusing on architecture, design, development and implementation of Hadoop Data Lakes, large data warehouses, operational data stores, analytical data stores, data integration, data ingestion, data and process flow, data pipelines, data modeling (entity-relationship / dimensional / data vault), data architecture, data analytics, data management, data quality, data transformation - ETL design and development, data migration, performance tuning, data access control, data archival and retention strategies.Data and Solution Architect with extensive hands on experience in implementing data solutions and played multiple roles simultaneously like Solution Delivery Lead, Big Data Hadoop Data Engineer / Architect, Hortonworks Data Platform (HDP) Hadoop Cluster Administrator, Hadoop Security Lead, Principal ETL Lead/Architect, Data Modeler, Data Architect, Data Warehouse Architect and Solution Architect in Big Data Hadoop (Hortonworks, Cloudera and MapR) ecosystem - Ambari, HDFS, Sqoop, Hive, MapReduce, Yarn, HBase, Phoenix, Spark, Oozie, Zookeeper, Kafka, Ranger, Erwin, Power Designer, Ab Initio, DataStage in Hadoop / Oracle / DB2 / AWS / GCP / Snowflake / Unix / Linux environments.
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Senior Big Data ArchitectIri Sep 2016 - Jan 2021Chicago, Il, Us• Led a 12-person geographically distributed data engineering team in design and development of a highly scalable POS supply chain big data solution for Fortune 50 retailers using MapR Hadoop• Designed Data Lake pipeline that ingested over 900 TB of data from 15 external sources that was used to support predictive modeling, machine learning, targeted marketing, and inventory logistics• Collaborated directly with clients to understand business data requirements, owned resulting end-to-end solution (data cleansing, transformation, and ingestion into Hadoop Data Lake using HIVE SQL and UNIX/Python scripts), and led team in conversion of scripts to PySpark and SparkSQL• Migrated multi-terabyte datasets from on-premise cluster to Snowflake on AWS• Created Hadoop data model for raw, curated, intermediate, and reporting layers and influenced leadership to move from fair to capacity scheduler, improving job run time by 22%• Tuned 25+ long-running critical HIVE queries, orchestrating a 60% reduction in execution time • Developed and evangelized best practices for data integration, ingestion, transformation, quality and standards, governance, backup, retention, and security strategies for the organization -
Senior Hadoop Data EngineerAccenture Apr 2015 - Aug 2016Dublin 2, Ie• Deployed Hortonworks Hadoop analytics solution on Google Cloud Platform, including provisioning, managing, monitoring, and securing a 150-node cluster using Kerberos and Ranger• Led a geographically distributed delivery team in bringing commercial policy data from Oracle database and external data sources into Hadoop Data Lake• Ingested and transformed multi-terabyte external third-party data from credit bureau into Hadoop Data Lake and integrated with internal data to create nearshore analytic data stores for self-serve reports and analytics by business users• Engineered complex HIVE SQL queries and transformations using ROWID pairs to pull records from Oracle database, achieving client recognition for 90% improvement in ingestion performance -
Technical LeadRapid Software Solutions, Inc Dec 2013 - Oct 2014Client: Northern Trust Bank, Chicago, IL • Directed a 20-person matrixed onshore/offshore team from multiple vendors on a Basel II compliance initiative mandated by the Federal Reserve, proactively resolving operational roadblocks and partnering with the business to keep stakeholders up to date• Managed loss given default (LGD) project from end-to-end, including short- and long-term prioritization, action plans, resource allocation, and hiring• Owned creation of logical and physical data models (ER and dimension) using SAP PowerDesigner and data integration using IBM DataStage• Created a proof-of-concept Hadoop cluster on AWS by ingesting internal (Oracle Data Warehouse) and third-party data which was transformed using HIVE SQL and UNIX shell scripts -
Senior Ab Initio Etl ArchitectRapid Software Solutions, Inc Aug 2012 - Dec 2013Client: Allstate Insurance, Chicago, IL • Transformed and re-architected 40 mission-critical policy databases from DB2/400 to Oracle 11.2 using an Ab Initio ETL solution, and earned critical acclaim after turning around a multi-year failed project within five months, reducing migration time from 8 hours to 30 minutes• Owned Ab Initio ETL solution and data migration including designing, building, testing, implementing, and maintaining operations based on requirements gathered from business users• Developed Ab Initio graphs and UNIX shell scripts to transform and migrate data
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Senior Ab Initio Etl LeadRapid Software Solutions, Inc Oct 2006 - Mar 2012Client: Walgreens, Deerfield IL • Led a multi-vendor team of 15 onshore & offshore resources in delivery of an Ab Initio ETL solution for pharmacy accounts receivables and medical billing projects by loading multi-terabytes of transformed data into Oracle enterprise data warehouses, achieving recognition for improvements to process and cycle times of applications that handled $60B+ in annual revenue• Fabricated high level ETL mapping and design document based on functional and technical requirements gathered through extensive collaboration with business users• Optimized performance of SQL queries used by mission-critical online applications by 60%, freeing availability of system resources for other projects• Improved performance of pharmacy accounts receivables Ab Initio batch process by 70%, maximizing application online availability that saved over $5M per month for the client
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Datawarehouse LeadRapid Software Solutions, Inc Jun 2004 - Sep 2006Client: United Airlines, Elk Grove Village IL • Led 9-person team in creation of sales data mart in enterprise data warehouse using Ab Initio on DB2, including data integration strategy with 10+ global booking and ticketing systems• Owned global implementation of a web-based application used by international sales managers to track performance relative to goals• Contributed to ER and dimension logical and physical data modeling and generated documentation (i.e. metadata, source to target mapping) using Erwin to track sales effectiveness
Lakshmi Narayan Skills
Lakshmi Narayan Education Details
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University Of MadrasMathematics
Frequently Asked Questions about Lakshmi Narayan
What is Lakshmi Narayan's role at the current company?
Lakshmi Narayan's current role is Senior Big Data Architect.
What is Lakshmi Narayan's email address?
Lakshmi Narayan's email address is la****@****ide.com
What is Lakshmi Narayan's direct phone number?
Lakshmi Narayan's direct phone number is +184761*****
What schools did Lakshmi Narayan attend?
Lakshmi Narayan attended University Of Madras.
What skills is Lakshmi Narayan known for?
Lakshmi Narayan has skills like Business Analysis, Data Warehousing, Data Modeling, Oracle, Business Intelligence, Sdlc, Management, Oracle Applications, Requirements Analysis, Software Development Life Cycle, Project Management, Consulting.
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