SummaryDynamic and motivated IT professional with around 7 years of experience as a Big Data Engineer with expertise in designing data intensive applications using Hadoop Ecosystem , Big Data Analytical , Cloud Data engineering , Data Warehouse Data Mart, Data Visualization , Reporting , and Data Quality solutions .In - depth knowledge of Hadoop architecture and its components like YARN , HDFS, Name Node, Data Node, Job Tracker, Application Master, Resource Manager , Task Tracker and Map Reduce programming paradigm.Extensive experience in Hadoop led development of enterprise level solutions utilizing Hadoop components such as Apache Spark, MapReduce, HDFS, Sqoop, PIG, Hive, HBase, Oozie, Flume, NiFi, Kafka, Zookeeper, and YARN.Profound experience in performing Data Ingestion, Data Processing (Transformations, enrichment, and aggregations).Strong Knowledge on Architecture of Distributed systems and Parallel processing, In-depth understanding of MapReduce programming paradigm and Spark execution framework.Experienced with the Spark improving the performance and optimization of the existing algorithms in Hadoop using Spark Context , Spark-SQL , Dataframe API , Spark Streaming, MLlib , Pair RDD s and worked explicitly on PySpark and Scala .Handled ingestion of data from different data sources into HDFS using Sqoop, Flume and perform transformations using Hive, Map Reduce and then loading data into HDFS.Managed Sqoop jobs with incremental load to populate HIVE external tables. Experience in importing streaming data into HDFS using Flume sources, and Flume sinks and transforming the data using Flume interceptors.Experience in Oozie and workflow scheduler to manage Hadoop jobs by Direct Acyclic Graph ( DAG ) of actions with control flows.Implemented the security requirements for Hadoop and integrating with Kerberos authentication infrastructure- KDC server setup, creating realm domain, managing.Experience of Partitions, bucketing concepts in Hive and designed both Managed and External tables in Hive to optimize performance .Experience with different file formats like Avro , parquet , ORC , Json and XML .Expertise in Creating, Debugging, Scheduling and Monitoring jobs using Airflow and Oozie.Experienced with using most common Operators in Airflow - Python Operator, Bash Operator, Google Cloud Storage Download Operator, Google Cloud Storage Object Sensor.Hands-on experience in handling database issues and connections with SQL and NoSQL databases such as MongoDB , HBase , Cassandra , SQL server , and PostgreSQL .Created Java apps to handle data in MongoDB and HBase. Used Phoenix to create SQL layer on HBase.Experience in designing and creating RDBMS Tables, Views, User Created Data Types, Indexes, Stored Procedures, Cursors, Triggers and Transactions.Expert in designing ETL data flows using creating mappings workflows to extract data from SQL Server and Data Migration and Transformation from Oracle Access Excel Sheets using SQL Server SSIS .Expert in designing Parallel jobs using various stages like Join, Merge, Lookup, remove duplicates, Filter, Dataset, Lookup file set, Complex flat file, Modify, Aggregator, XML.Hands-on experience with Amazon EC2, Amazon S3, Amazon RDS, VPC, IAM, Amazon Elastic Load Balancing, Auto Scaling, CloudWatch, SNS, SES, SQS, Lambda, EMR and other services of the AWS family.Created and configured new batch job in Denodo scheduler with email notification capabilities and Implemented Cluster setting for multiple Denodo node and created load balance for improving performance activity.Instantiated, created, and maintained CI CD (continuous integration deployment) pipelines and apply automation to environments and applications.Worked on various automation tools like GIT, Terraform, Ansible. Experienced in fact dimensional modeling ( Star schema, Snowflake schema ), transactional modeling and SCD (Slowly changing dimension)Experienced with JSON based RESTful web services, and XML QML based SOAP web services and also worked on various applications using python integrated IDEs like Sublime Text and PyCharm .Efficient Cloud Engineer with years of experience assembling cloud infrastructure. Utilizes strong managerial skills by negotiating with vendors and coordinating tasks with other IT team members. Implements best practices to create cloud functions, applications and databases. Skills Big Data Technologies Hadoop, MapReduce, HDFS, Sqoop, PIG, Hive, HBase, Oozie, Flume, NiFi, Kafka, Zookeeper, Yarn, Apache Spark, Mahout, Sparklib Databases Oracle, MySQL, SQL Server, MongoDB, Cassandra, DynamoDB, PostgreSQL, Teradata, Cosmos. Programming Python, PySpark, Scala, Java, C, C , Shell script, Perl script, SQL Cloud Technologies AWS, Microsoft Azure Frameworks Django REST framework, MVC, Hortonworks Tools PyCharm, Eclipse, Visual Studio, SQL Plus, SQL Developer, TOAD, SQL Navigator, Query Analyzer, SQL Server Management Studio, SQL Assistance, Eclipse, Postman Versioning tools SVN, Git, GitHub Operating Systems Windows 7 8 XP 2008 2012, Ubuntu Linux, MacOS Network Security Kerberos Database Modelling Dimension Modeling, ER Modeling, Star Schema Modeling, Snowflake Modeling Monitoring Tool Apache Airflow Visualization Reporting Tableau, ggplot2, matplotlib, SSRS and Power BI Machine Learning Techniques Linear Logistic Regression, Classification and Regression Trees, Random Forest, Associative rules, NLP and Clustering. Experience01 2022to02 2022AWS Data EngineerDeloitte Ann Arbor,MI,Designed and setup Enterprise Data Lake to provide support for various uses cases including Analytics, processing, storing and Reporting of voluminous, rapidly changing dataResponsible for maintaining quality reference data in source by performing operations such as cleaning, transformation and ensuring Integrity in a relational environment by working closely with the stakeholders solution architectDesigned and developed Security Framework to provide fine grained access to objects in AWS S3 using AWS Lambda, DynamoDBSet up and worked on Kerberos authentication principals to establish secure network communication on cluster and testing of HDFS, Hive, Pig and MapReduce to access cluster for new usersPerformed end- to-end Architecture implementation assessment of various AWS services like Amazon EMR, Redshift, S3Implemented the machine learning algorithms using python to predict the quantity a user might want to order for a specific item so we can automatically suggest using kinesis firehose and S3 data lakeUsed AWS EMR to transform and move large amounts of data into and out of other AWS data stores and databases, such as Amazon Simple Storage Service (Amazon S3) and Amazon DynamoDBUsed Spark SQL for Scala amp, Python interface that automatically converts RDD case classes to schema RDDImport the data from different sources like HDFS HBase into Spark RDD and perform computations using PySpark to generate the output responseCreating Lambda functions with Boto3 to deregister unused AMIs in all application regions to reduce the cost for EC2 resourcesImporting exporting database using SQL Server Integrations Services (SSIS) and Data Transformation Services (DTS Packages)Coded Teradata BTEQ scripts to load, transform data, fix defects like SCD 2 date chaining, cleaning up duplicatesDeveloped reusable framework to be leveraged for future migrations that automates ETL from RDBMS systems to the Data Lake utilizing Spark Data Sources and Hive data objectsConducted Data blending, Data preparation using Alteryx and SQL for Tableau consumption and publishing data sources to Tableau serverDeveloped Kibana Dashboards based on the Log stash data and Integrated different source and target systems into Elasticsearch for near real time log analysis of monitoring End to End transactionsImplemented AWS Step Functions to automate and orchestrate the Amazon SageMaker related tasks such as publishing data to S3, training ML model and deploying it for predictionIntegrated Apache Airflow with AWS to monitor multi-stage ML workflows with the tasks running on Amazon SageMakerEnvironment AWS EMR, S3, RDS, Redshift, Lambda, Boto3, DynamoDB, Amazon SageMaker, Apache Spark, HBase, Apache Kafka, HIVE, SQOOP, Map Reduce, Snowflake, Apache Pig, Python, SSRS, TableauAssessed organization technology infrastructure and managed cloud migration process.Configured computing, networking and security systems within cloud environment.Implemented cloud policies, managed technology requests and maintained service availability.01 2016to11 2019Data EngineerHoneywell Huntsville,AL,Worked on Azure Data Factory to integrate data of both on-prem (MY SQL, Cassandra) and cloud (Blob storage, Azure SQL DB) and applied transformations to load back to Azure SynapseManaged, Configured and scheduled resources across the cluster using Azure Kubernetes ServiceMonitored Spark cluster using Log Analytics and Ambari Web UITransitioned log storage from Cassandra to Azure SQL Datawarehouse and improved the query performanceInvolved in developing data ingestion pipelines on Azure HDInsight Spark cluster using Azure Data Factory and Spark SQLAlso Worked with Cosmos DB (SQL API and Mongo API)Develop dashboards and visualizations to help business users analyze data as well as providing data insight to upper management with a focus on Microsoft products like SQL Server Reporting Services (SSRS) and Power BIPerformed the migration of large data sets to Databricks (Spark), create and administer cluster, load data, configure data pipelines, loading data from ADLS Gen2 to Databricks using ADF pipelinesCreated various pipelines to load the data from Azure data lake into Staging SQLDB and followed by to Azure SQL DBCreated Databrick notebooks to streamline and curate the data for various business use cases and also mounted blob storage on DatabrickUtilized Azure Logic Apps to build workflows to schedule and automate batch jobs by integrating apps, ADF pipelines, and other services like HTTP requests, email triggers etcWorked extensively on Azure data factory including data transformations, Integration Runtimes, Azure Key Vaults, Triggers and migrating data factory pipelines to higher environments using ARM TemplatesIngested data in mini-batches and performs RDD transformations on those mini-batches of data by using Spark Streaming to perform streaming analytics in Data bricksEnvironment Azure SQL DW, Databrick, Azure Synapse, Cosmos DB, ADF, SSRS, Power BI, Azure Data lake, ARM, Azure HDInsight, Blob storage, Apache Spark.Adept in troubleshooting and identifying current issues and providing effective solutions.Managed performance monitoring and tuning while identifying and repairing issues within database realm.Identified key use cases and associated reference architectures for market segments and industry verticals.Designed surveys, opinion polls, and assessment tools to collect data.Tested, validated and reformulated models to foster accurate prediction of outcomes.Created graphs and charts detailing data analysis results.Recommended data analysis tools to address business issues.Developed new functions and applications to conduct analyses.Cleaned and manipulated raw data.Collaborated with solution architects to define database and analytics engagement strategies for operational territories and key accounts.10 2013to12 2015Big Data Engineer Hadoop DeveloperInfosys Ltd Irwindale,CA,AnsibleDenodoDenodoCloudWatchAvroPySparkPySparkPySparkMLlibDataframeNiFiNiFiInteracted with business partners, Business Analysts and product owner to understand requirements and build scalable distributed data solutions using Hadoop ecosystemDeveloped Spark Streaming programs to process near real time data from Kafka, and process data with both stateless and state full transformationsWorked with HIVE data warehouse infrastructure-creating tables, data distribution by implementing partitioning and bucketing, writing and optimizing the HQL queriesBuilt and implemented automated procedures to split large files into smaller batches of data to facilitate FTP transfer which reduced 60 of execution timeWorked on developing ETL processes (Data Stage Open Studio) to load data from multiple data sources to HDFS using FLUME and SQOOP, and performed structural modifications using Map Reduce, HIVED eveloping Spark scripts, UDFS using both Spark DSL and Spark SQL query for data aggregation, querying, and writing data back into RDBMS through SqoopWritten multiple MapReduce Jobs using Java API, Pig and Hive for data extraction, transformation and aggregationAvrom multiple file formats including Parquet, Avro, XML, JSON, CSV, ORCFILE and other compressed file formats Codecs like gZip, Snappy, LzoStrong understanding of Partitioning, bucketing concepts in Hive and designed both Managed and External tables in Hive to optimize performanceDeveloped PIG UDFs for manipulating the data according to Business Requirements and also worked on developing custom PIG LoadersDeveloping ETL pipelines in and out of data warehouse using combination of Python and Snowflakes SnowSQL Writing SQL queries against SnowflakeExperience in report writing using SQL Server Reporting Services (SSRS) and creating various types of reports like drill down, Parameterized, Cascading, Conditional, Table, Matrix, Chart and Sub ReportsUsed DataStax Spark connector which is used to store the data into Cassandra database or get the data from Cassandra databaseWrote oozie scripts and setting up workflow using Apache Oozie workflow engine for managing and scheduling Hadoop jobsWorked on implementation of a log producer in Scala that watches for application logs, transform incremental log and sends them to a Kafka and Zookeeper based log collection platformUsed Hive to analyze data ingested into HBase by using Hive-HBase integration and compute various metrics for reporting on the dashboardTransformed tPySpark using AWS Glue dynamic frames with PySpark cataloged the transformed the data using Crawlers and scheduled the job and crawler using workflow featureWorked on installing cluster, commissioning decommissioning of data node, name node recovery, capacity planning, and slots configurationDeveloped data pipeline programs with Spark Scala APIs, data aggregations with Hive, and formatting data (JSON) for visualization, and generatiPySparkEnvironment AWS, Cassandra, PySpark, Apache Spark, HBase, Apache Kafka, HIVE, SQOOP, FLUME, Apache oozie, Zookeeper, ETL, UDF, Map Reduce, Snowflake, Apache Pig, Python, Java, SSRSOnfidentialDeveloped and implemented Hadoop code while observing coding standards.Optimized and tuned Hadoop environments and modified hardware to meet prescribed performance thresholds.Developed new functions and applications to conduct analyses.Created graphs and charts detailing data analysis results.Tested, validated and reformulated models to foster accurate prediction of outcomes.  SEP  ROR Partners is a rapidly growing, client-driven digital marketing and data company. We offer proven marketing solutions to a variety of vertical industries on a nationwide basis. ROR is seeking a Principal Data Engineer to serve as a key data architect and team leader on our data engineering team. The successful candidate will have demonstrated deep understanding and passion for designing and implementing robust ETL and ELT data pipelines. Position is remote and reports to the VP, Engineering. Salary is 170K to 195K and is determined by factors such as location, experience, and expertise. What you will doBuild, maintain, and administer our Snowflake data warehouse using Data Build Tool (dbt)Implement and maintain data pipelines between various operational systems and our data warehouse using Python, Airflow and integration platformsCreate and maintain documentation of data architectureCollaborate with internal and external stakeholders to ensure that data requirements are addressedMentor and lead other data engineering team members and participate in peer design and code reviewsShip production-quality features independentlyWork efficiently and productively in a remote-first work environmentCommunicate and collaborate effectively, both verbally and in writingLearn independently - keep up to date with developments in the field QualificationsWhat we are looking forHistory of professional experience shipping production quality code independentlyAbility and desire to lead and mentor a team of data engineersExpertise with SQL and cloud-based analytical data warehouses (Snowflake preferred)Expertise building end-to-end data pipelines using Airflow and dbt (data build tool) or comparable technologiesDeep understanding of ETL and ELT patterns and best practicesStrong data modeling skills and familiarity with the Kimball data warehousing methodologyExperience writing Python code for data processingDesire to continually keep up with advancements in data engineering practicesExperience conducting design and code reviewsStrong analytical skills and independent learning styleExperience with git and use of the command line requiredExperience with AWS and CloudFormation, or comparable cloud services and IaC tools preferredExperience with Docker and Docker Compose preferredSubject matter familiarity with digital marketing and digital activation is preferred EducationTrainingRequired BS Degree in computer science or related STEM field Experience8 years of experience in data science, software engineering or related technical fields. ROR Partners is an Equal Opportunity Employer. ROR Partners policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. ROR Partners also prohibits harassment of applicants and employees based on any of these protected categories. ROR Partners will provide accommodations to applicants as needed.