Praveen Kumar Jv Email & Phone Number

- Optimized the performance of a Big Data application running ETL processes by transitioning from manual partitioning with Hive catalog to automated partitioning using Apache Iceberg catalog with Trino, significantly improving efficiency and scalability while fetching data from S3.- Implemented telemetry instrumentation across key components of a Big Data application, including Flink, Trino, Spring Boot, and Airflow, to capture metrics and identify performance bottlenecks effectively.

San Jose, United States

Software R&D EngineerEmployer: Nokia TechnologiesSept 2017 to PresentEnvironment:Core Java 8, J2EE, RESTful Web Services, MariaDB, Cassandra, Elastic Search, Hadoop, Kubernetes, Amazon AWS, junit, JIRA, GIT, Confluence, Eclipse, IntelliJ, iOS, Linux, Agile, TDD, Tomcat, JIRAResponsibilities:• Designed and implemented Analytics Sample Applications for Product teams using Restful Webservices, Hadoop, Cassandra, MariaDB, Keycloak and Kong API Gateway, Junit. • Worked on a POC to showcase Location of Cell towers on a Map using Speech Text recognition when the user request for the data. Received a strong applause and an award for this POC.• Worked on setting up a Kubernetes Cluster for the team to leverage the Cloud Computing capabilities in a vLab for developmental activities and Integration. Wrote a number of Helm Charts for the Components like ElasticSearch, Kong etc.,• Deployed the sample applications developed in Amazon AWS services.• Worked as an Individual Contributor in a TDD approach and as well helping peers in their issues and introducing technologies like Kubernetes etc., to make the deployments easier.

Sunnyvale

AppleSenior Java Engineer | Apr2016 – Sept 2017ConsultantDescription: The online Store tool allows to configure or create a list of new products, base parts, and concrete parts associated with the Products that are going to be released. It provides a list of configurable accessories for the products.Work Experience:• Analyzed the requirements and designed class diagrams, sequence diagrams using UML and prepared high level technical documents.• Used Apache Solr to Index the data that is stored in Cassandra and retrieve the indexed data using SolrJ in Java layer.• Developed mechanism to migrate the data from the Oracle Tables to Cassandra Columns.• Designed and developed the Business Layer using Restful Web services and Spring frameworks.• Involved in documentation, Code review, analysis and business requirement gathering• Worked on bug fixing and enhancements on Change requests.• Lead the Technical team from Onshore and day to day interaction with Offshore technical team and Scrum calls.

Sunnyvale, Hyderabad

Employer: Wipro LimitedClient: Apple Inc.,Programmer Analyst/Tech Lead | Dec 2012 – Mar 2016Description: XCard is iTunes Gift Card (GC) system. It provides Gift Card/Certificate services to various Internal and External Clients like iTunes Music Store, Apple Retail store, Apple Online Store, and 3rd Party retailers like Target, Walmart, BestBuy and many more. It also provides Monthly Allowance services to iTunes Music Store client. It deals with handling of Cards and Customers.Work Experience:• Analyzed the requirements and designed class diagrams, sequence diagrams using UML and prepared high level technical documents.• Developed and designed the business layer using Restful Web services and Spring frameworks.• Developed and designed the Transaction Layer using JDBC, CQL drivers, CQL queries.• Designed and developed the Transaction logging using Log4j, Apache Kafka, Zookeeper and Hive.• Supported bug fixes and production issues for Back Office web portal.• Developed unit test cases using Junit and Mockito.• Supported various phases of testing.• Design and developed the code for automation of Deployment activities using yml, Puppet, Jenkins, Perl.• Developed business layer code for encryption and decryption of the Primary ID of the module.

Hyderabad Area, India

Employer: Infosys Limited (Product Development - FINACLE)Senior Systems Engineer | Dec 2008 – Dec 2012Description: Retail Loan Origination System deals with the various account openings in a bank. This allows the banker to enter all the customer details in the UI and check all the processes like eligibility, blacklist customer check etc., and the opening of an account in the Core module and displaying the account number back in the UI. This involved the development for Integrated and Stand-Alone account Opening from LOS with Various other channels.Work Experience:• Developed UI applications for CRM using HTML, JS, XML CSS.• Developed business layer code for various APIs using Java, Servlets to handle to the logic for various account openings like Savings, Current, Loan Account et.,• Implemented FI Integration named Finacle Integrator to integrate the CRM to Core module of the Product.• Involved in code development of transaction layer to percolate the data into Oracle DB tables using JDBC. Accessed stored procedures using JDBC.• Involved in development for writing the code at various levels (JSP, Form Bean Classes and Model Classes, Access Layer Files, VO’s and Populate files for Business Logic).• Involved in writing the code for creating Utility methods for reusable purpose (Utility Class is a Singleton Class).• Developed Unit Test cases using Junit.• Analysis and understood the new areas of Banking domain developments in the market.• Worked on bug fixes and supported various phases of testing.• Deployment of the artifacts in IBM Websphere application server.

Bachelor'S Degree, Electrical, Electronics And Communications Engineering

Bachelor Of Technology (Btech), Electrical, Electronics And Communications Engineering, A