Rajasekar Loganathan

Rajasekar Loganathan Email and Phone Number

Senior Engineering Manager | Data Profiling, Data Transformation, APIs
Rajasekar Loganathan's Location
Chennai, Tamil Nadu, India, India
Rajasekar Loganathan's Contact Details

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About Rajasekar Loganathan

As a Senior Data Engineering Manager with over 18 years of experience in the tech industry, I specialize in building and managing high-performing teams that create robust and scalable data infrastructure. My expertise lies in managing the end-to-end data life cycle – from gathering requirements, designing data models, to deploying production-ready pipelines. Skilled in various technologies like Hadoop, Spark, Google Cloud, and SQL, I have successfully led numerous data-oriented projects, driving efficiency and supporting strategic decision-making. My strong background in Computer Science, combined with a passion for data-driven insights, allows me to bridge the gap between technical execution and business strategy.I am a firm believer in lifelong learning, consistently staying abreast with the latest trends in data engineering and management. I am always keen to connect with industry professionals, exchange ideas, and foster meaningful collaborations. My goal is to leverage data for impactful business transformations and drive digital innovation.

Rajasekar Loganathan's Current Company Details

Senior Engineering Manager | Data Profiling, Data Transformation, APIs
Rajasekar Loganathan Work Experience Details
  • Walmart Global Tech India
    Senior Engineering Manager
    Walmart Global Tech India Jun 2020 - Apr 2022
    Chennai, Tamil Nadu, India
    Leading Data Lake initiative for Supply Chain Systems used for Analytics purpose running on Hybrid Cloud.First in DSI to implement end to end Kafka connect architecture to production. Near real time data with 3~5 mins latencyKPIs can be onboarded and built quickly (within a sprint)↘︎ 91.6% decrease in Onboarding time↖︎ 15x faster speed of delivery with 70% development efforts automated100% data accuracy and completeness with eventual consistencyMTTD is immediate & MTTR is < 2 hours*Analysed and narrowed down the best architecture for the CDI initiative Reduced the development time for 20 tables from 1 quarter to 1 day (working to reduce to 2 hrs)Automated most of the development (70%) to increase the velocity of the team by 20%Partnered and executed Data Governance, Data Quality, Data Discovery, Data Lineage, Data Ingestion, Data TransformationTech Specialties: Big Data, Spark, Hadoop, Impala, Hive, Yarn, Cloudera, Presto, GCP, DataProc, GCE, Big Query, Airflow/Automic/Autosys, GCS, Vertica, Java, JEE, Web Service Technologies, Application DesignProcess Specialties: Agile, Scrum, JIRA, DevOps, CI-CD, Release Management, Incident Management, ITSM, Service NowManagement Specialties: Engineering Management, Project Planning and Execution, AOP, KTLO, QBR, Vendor Management, Stakeholder Management
  • Bank Of America
    Senior Analyst
    Bank Of America Nov 2014 - Jun 2020
    Chennai Area, India
    • Strong knowledge on data profiling, data standardization, transformation, cleansing and best practices to apply on high volume data in establishing distributed, reliable and scalable data pipelines that seamlessly transfers data between HDFS and other storages like RDBMS/NOSQL Databases in real-time and batch.• performance improvement and optimization of the existing algorithms in Hadoop using Spark Context, Spark-SQL, Data Frame, Dataset, Pair RDD's, Spark YARN for in-memory data processing like aggregation, filtering and grouping.• Strong Experience in working with Databases like DB2, SQL Server and MySQL and proficiency in writing complex SQL queries• Understanding about Kafka Cluster’s topics, producer, consumers, understanding about consume streaming data using spark streaming, from files and network logs.• Proven skills on benchmarking, performance optimizations, followed best practices in the development of spark jobs such as memory management, partitioning, broadcast variables and UI monitoring • Extensively worked on different serialization and file formats like CSV, XML, Avro, Parquet, Nested-Json, ORC, Text file, Sequence file using compression techniques Snappy and Gzip and store it in HDFS/Hive tables using Spark. • Unified Hive to analyse data ingested into HBase by using Hive-HBase integration and compute various metrics for reporting on the dashboard• Handled Hive performance optimization by using ORC/Parquet storage, Compression, Partitioning, Bucketing, Predicate Pushdown Data, CBO query analytics and compute analytics on top of tables, queries, and partitions• Experience in working with zookeeper, Oozie workflow and developed Oozie workflow to run scheduled batch cycles and present data for OLAP reports• Outline end-to-end strategy using Lambda and Kappa architecture approach. Proof-of-concept to determine feasibility and product evaluation of Big Data products.
  • Cognizant
    Senior Associate
    Cognizant Nov 2013 - Sep 2014
    Chennai Area, India
    Hadoop Data engineer with SQOOP, HIVE, SHELL,TABLEAU, AUTOSYS
  • Hcl Technologies
    Senior Software Engineer
    Hcl Technologies Dec 2009 - Nov 2013
    Responsibilities on the projecta. Project monitoringb. Client interaction.c. Offshore Co-ordinationd. Team leade. Deliveryf. DesignActivities:• Lead team of 6 members• Interacted with client and co-ordinate offshore team. • Designed and developed COBOL/CICS programs to perform send files to external systems.• Created many subroutines which could be reused across the project.• Effective reviews and independent testing for correctness and quality standards, focusing on code optimization, defining standards and mentoring the team on de-bugging issues.
  • Infosys
    Technology Analyst
    Infosys Jul 2006 - Dec 2009
    Responsibilities on the projecta. Project monitoringb. Codingc. Testingd. DesignActivities:• Designed and developed COBOL programs to perform data quality test, reconciliation of data, create aggregate reports for the external rating agencies (Fitch, SnP and Moodys). • Developed test scripts and the test data with the scrambled production like data.• Designed and developed COBOL programs to perform send files to external systems and created jobs using ICETOOL for data extraction and modification.• Created many subroutines which could be reused across the project.• Effective reviews and independent testing for correctness and quality standards, focusing on code optimization, defining standards and mentoring the team on de-bugging issues.

Rajasekar Loganathan Skills

Mainframe Cobol Db2 Sql Rexx Jcl Icetool Stored Procedures Vsam

Rajasekar Loganathan Education Details

Frequently Asked Questions about Rajasekar Loganathan

What is Rajasekar Loganathan's role at the current company?

Rajasekar Loganathan's current role is Senior Engineering Manager | Data Profiling, Data Transformation, APIs.

What is Rajasekar Loganathan's email address?

Rajasekar Loganathan's email address is to****@****ail.com

What schools did Rajasekar Loganathan attend?

Rajasekar Loganathan attended Anna University Chennai, Anna University - Smit, Sree Narayana Mission Sr. Sec School.

What skills is Rajasekar Loganathan known for?

Rajasekar Loganathan has skills like Mainframe, Cobol, Db2, Sql, Rexx, Jcl, Icetool, Stored Procedures, Vsam.

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