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Experienced Data Engineer with over 4 years of expertise in developing Java-based microservices and building scalable ETL pipelines in cloud environments. Proficient in leveraging AWS services, Apache Kafka, PySpark, and Elasticsearch to deliver real-time and batch data solutions. Skilled in data modeling, API development, and workflow orchestration using tools like Glue, Lambda, and Airflow. Adept at managing structured and unstructured data across distributed systems. Strong collaborator with a focus on building secure, efficient, and high-performance data platforms.

Over 8 years of professional IT experience and expert in Requirements Gathering, designing, development, implementation and testing of Multi-tired, Distributed Applications and Web Based Applications using Big data and JAVA/J2EE technologies. Strong experience in various phases of Software Development Life Cycle (SDLC) as requirement gathering, modeling, analysis, architecture design, development, testing and implementation. Strong experience on designing Big data pipelines such as Data Ingestion, Data Processing (Transformations, enrichment and aggregations) and Reporting. Strong experience in developing jobs using Apache Spark. Extensive knowledge in programming with DataFrames and Resilient Distributed Datasets (RDDs). Strong experience in submitting Spark applications in different clusters such as Spark Standalone and Hadoop Yarn. Strong knowledge in various Python libraries like Numpy and Pandas. Strong knowledge in various Machine Learning algorithms like KNN, Naive Bayes, Logistic Regression and Linear Regression, SVM, Decision trees, Random Forest and Gradient Boosted Decision Trees. Experienced applying machine learning and deep learning techniques to build models and analyze large scale data. Profound experience in implementing real time data streaming solutions using Spark Streaming, Kafka. Good knowledge on various Amazon Web Services (AWS) such as S3, EC2,Redshift, ECS, EMR, VPC, RDS,SQS, ELB . Experience in tuning and improving the performance of spark jobs by exploring various options. Strong Experience in migrating data using Sqoop from HDFS to Relational Database Systems and vice-versa. Strong experience in developing the workflows using Apache Oozie framework to automate tasks. Experience in working with Map Reduce programs using Apache Hadoop to analyze large data sets efficiently. Strong experience in working with Core Hadoop components like HDFS, Yarn and Map Reduce. Strong experience in Cloudera Hadoop distribution with Cloudera manager. Experience in launching spark applications by using the Kerberos authentication. Strong knowledge in developing Spark applications using Scala. Good understanding and knowledge of NoSQL databases like HBase and Cassandra. Good experience in performing and supporting Unit testing, Integration testing, QAT and UAT and production support for issues raised by application users. Experience in using Design Patterns: Singleton Pattern, DAO and MVC Pattern. Experienced in generating logging by Log4j to identify the errors in production test environment. Efficient in developing java applications in various Integrated Development Environment (IDE) tools like Eclipse, My Eclipse and RAD. Experience in deploying applications on IBM WebSphere and Apache Tomcat. Having good experience on using version control tools like GIT, SVN and Clearcase. Hands on experience in setting up repositories in SBT, Maven and Ant. Outstanding skills in design aspects and technical documentation along with strong interpersonal, analytical, and Organizational skills. Experience in developing application on different platforms like Windows, UNIX and LINUX.

Accomplished Senior Data Engineer with expertise in Azure Databricks and Apache Spark, delivering over 30 production-grade data solutions at Sopra Steria. Proven ability to optimize data pipelines and enhance performance, while effectively collaborating with stakeholders to drive impactful results. Strong analytical skills combined with a commitment to data governance and quality.

Professional Summary
Dedicated Data Engineer with over 6 years of hands-on experience, specializing in the design, implementation, and optimization of end-to-end data pipelines. Proficient in harnessing cutting-edge technologies to transform raw data into actionable insights, driving well-informed decision-making.
Key Skills:

  Extensive experience in designing, developing, and executing data pipelines and data lake requirements using the Big Data Technology stack, Python, PL/SQL, SQL, REST APIs, and the Azure cloud platform.
  Proficiency with key Big Data tools, including HDFS, Kafka, Map Reduce, Spark, PIG, HIVE, Sqoop, HBase, Flume, and Zookeeper for designing and deploying comprehensive big data ecosystems.
  Expertise in Spark Data Frame Operations for critical data validation and analytics on Hive data within Cloudera infrastructure.
  Skilled in developing advanced MapReduce systems to process various file types, including Text, Sequence, XML, and JSON.
  Successfully migrated on-premises applications to leverage Azure cloud databases and storage.
  Hands-on experience with Azure services, including SQL Database, SQL Data Warehouse, Analysis Services, HDInsight, Data Lake, and Data Factory.
  Proficient in building CI/CD pipelines on AWS using Code Commit, Code Build, Code Deploy, and Code Pipeline, as well as utilizing AWS Cloud Formation, API Gateway, and AWS Lambda for automation and infrastructure security.
  Expertise in Azure data solutions, including storage account provisioning, Azure Data Factory, SQL server, SQL Databases, SQL Data Warehouse, Azure Data Bricks, and Azure Cosmos DB.
  Strong understanding of Spark Architecture with Databricks and Structured Streaming.
  Practical experience with Python and Apache Airflow to create, schedule, and monitor workflows.
  Knowledge of data analytics services, such as Quick Sight, Glue Data Catalog, and Athena.
  Proficiency in working with Apache Kafka and Confluent environments, including KTables, Global KTables, and KStreams for Kafka streaming.


Rex Herbertraj

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Software Engineer Specialist

Oracle Developer - Trainee

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MBA - Information Systmes

Bachelor's - Computer Science & Engineering

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Software Engineer Specialist

Oracle Developer - Trainee

MBA - Information Systmes

Bachelor's - Computer Science & Engineering

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