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Koushal Majeti

@koushalmajeti

Lead Data Engineer at LTIMindtree building Western Union’s real-time money transfer data platform for fraud detection and compliance.

United States

Message

At LTIMindtree, I designed and developed batch and real-time data pipelines for Western Union’s money transfer system, supporting fraud detection, compliance monitoring, and business analytics. I built data lakes on Google Cloud Storage and analytical warehouses on BigQuery, and migrated legacy SSIS, Hadoop, and Hive workloads to cloud-based platforms.

At Amazon Fresh, I built ETL workflows and a centralized data lake for grocery and point-of-sale data, supporting retail analytics and ML-based restocking. Earlier, I migrated financial-risk business logic at American Express from Oracle and legacy ETL systems to Spark-based processing.

Experience

Work history, roles, and key accomplishments

Current

Lead Data Engineer

Current

LTIMindtree

Sep 2023 - Present (3 years 2 months)

Designed and implemented a secure, scalable, and real-time end-to-end money transfer system supporting global transactions across web, mobile, and agent-based platforms. Led onsite-offshore teams, conducted code reviews, and mentored engineers.

Google Cloud Dataflow Dataproc PySpark Cloud Composer SQL BigQuery Pub Sub Kafka Apache Beam Dataplex Data Catalogs IAM KMS Terraform Vertex AI BigQuery ML Feature Stores Hive Hadoop HDFS Spark

SDE (Data Engineer/AWS)

Amazon Fresh

Aug 2020 - Aug 2023 (3 years)

Built robust ETL/ELT workflows using AWS Glue, Apache Spark, and PySpark to process large-scale grocery and POS datasets in real-time and batch mode. Architected and maintained a centralized Data Lake on Amazon S3, using AWS Lake Formation for fine-grained access control and data cataloging.

Data Engineer (PySpark Developer)

American Express

Oct 2018 - Aug 2020 (1 year 10 months)

Migrated complex business logic from Oracle PL/SQL and legacy ETL systems to distributed Spark-based processing, improving scalability, maintainability, and execution performance. Implemented data quality, lineage, and governance controls using Dataplex, Data Catalog, IAM, and Cloud Audit Logs.

PySpark Spark Java HDFS Sqoop Hive Impala Hue Drools Jenkins Git Dataplex Data Catalogs IAM Audit Logs LUCY Platform Pig Apache Flume

Hadoop Developer

Nationwide Insurance

Apr 2016 - Oct 2018 (2 years 6 months)

Analyzed Oracle stored procedures and converted them into Spark SQL using Java for financial consolidation. Implemented a generic tool for file level validation and performed unit testing using JUnit.

HDFS Sqoop Hive Impala Hue Spark Java Drools Jenkins Git Spark SQL Junit SonarQube Emma

Java Developer

Genpact Headstrong Capital Markets

Jul 2012 - Dec 2014 (2 years 5 months)

Involved in requirement gathering, analysis, and solution design for GenMask, a dynamic masking tool. Designed application code flow and database structures, and performed unit testing, bug fixing, and enhancements.

Core Java MySQL Oracle 11g MSSQL Tomcat