Nageswara K

Nageswara K

Senior Data Engineer
India
Full-time Hybrid

About Me

Data engineering professional with 14+ years of experience across banking, financial services and healthcare. Builds and supports AWS-based data pipelines, enterprise data integration and Hadoop/Spark workloads using Pyt…

Experience

Senior Specialist – Data Engineer

LTM Limited · Hyderabad
May 2024 - Present · 2 years 6 months

<p>Design and support financial-data ingestion and ETL/ELT pipelines using AWS Glue, Amazon S3, Apache Spark, AWS Lambda, Airflow, Python and SQL.</p><p> Build batch and event-driven workflows that transform raw banking data into validated, reconciled, analytics-ready Snowflake datasets.</p><p> Apply data-quality checks, pipeline monitoring, failure notifications and SLA-focused production support; troubleshoot processing and integration issues.</p><p> Collaborate with stakeholders on technical design, integration requirements, performance, release validation and operational stability.</p>

Senior Applications Developer

Citi Corp Services India Pvt. Ltd. (Citibank) · Chennai
Mar 2018 - May 2024 · 6 years 2 months

<p>Built and supported distributed data pipelines on Cloudera/Hadoop, Apache Spark, PySpark, Hive and SQL for CitiRisk Loss Mitigation reporting.</p><p> Automated Genesis-to-CitiRisk account-level ingestion and transformations, including validation, reconciliation and monthly enrollment/performance reporting.</p><p> Used Java, AWS, Autosys, Jenkins, Git and CI/CD processes to support batch workloads, releases and production operations.</p><p> Investigated data failures, performed root-cause analysis and performance tuning, and coordinated incident resolution across teams.</p>

Senior Software Engineer

UnitedHealth Group (Optum) · Bengaluru
Jun 2015 - Mar 2018 · 2 years 8 months

<p>Supported Primary Care Case Management (PCCM) healthcare data integration and care-management workflows.</p><p> Worked with Java, Hadoop, Spark, Hive, Sqoop, HBase, Cassandra, Talend, Oracle, SQL Server, YARN and Control-M.</p>

Senior Software Engineer

HCL Technologies · Bengaluru
Jan 2014 - Jun 2015 · 1 year 5 months

<p>Supported Deutsche Bank DBIQ quantitative index data processing, daily calculations and index-level publication using Java, Hadoop MapReduce, HDFS, HBase, Hive, Sqoop, IBM CDC, Talend, Scala, Spark SQL and Oracle.</p>

System Engineer

Infosys Limited · Bengaluru
Feb 2012 - Jan 2014 · 1 year 11 months

<p>Built and supported Java/J2EE components for the AMEX WindTunnel initiative using JSP, Struts, Spring, Hibernate, JavaScript, Jetty, SVN and Oracle.</p>

Software Engineer

Municipal Reforms Cell · Bengaluru
Jul 2009 - Jan 2012 · 2 years 6 months

<p>Developed and maintained Java/J2EE and REST-based functionality for Karnataka urban birth and death registration and certificate issuance.</p>

PROJECTS

Enterprise Data Frame Work

LTM
Duration : 06-May-2024 - 09-Nov-2026

<p></p><p>My technical expertise includes Hadoop, Apache Spark, PySpark, AWS, Amazon S3, AWS Glue, Apache Iceberg, Python, SQL, Snowflake, and ETL/ELT pipeline development. I also have experience in data platform design, performance optimization, production support, and technical leadership.</p>

Certifications

scjp

systems domain · Adugodi , Karnataka , India · 2009

Skills

AWS S3 AWS Glue AWS Lambda Apache Airflow Snowflake Apache Iceberg Hadoop Cloudera Spark PySpark Spark SQL Hive HDFS Sqoop HBase MapReduce YARN ETL/ELT data ingestion data transformation batch processing event-driven workflows data validation reconciliation data quality source-to-target mapping performance tuning Python SQL Java J2EE Scala REST APIs Oracle SQL Server Cassandra Git Jenkins CI/CD Autosys Control-M Talend Tableau Splunk root-cause analysis monitoring failure alerts SLA support Hibernate/JPA Kafka
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