Ravi Sharma

Ravi Sharma Senior Software Developer, Paytm Gurgaon, India - linkedin.com/in/ravisharma911993 - www.cryptocost.in Professional Experience 08/2020 – present Gurgaon, India Senior Software Developer 2B Paytm Managing Discovery service for the Paytm nearby stores which uses Elasticsearch 6+. Coding Java based ES queries and custom ES query aggregation to search, filter, list millions of stores, products in Elasticsearch. Providing Spring Boot Restful Apis for autosuggestions of location, store, product using Elasticsearch. Creating, Designing, Updating Elasticsearch indices. Writing Kafka consumers to process the messages smoothly and injecting modified data into Elasticsearch indices. Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using bamboo along with Shell scripts to automate routine jobs. Writing MapReduce programs in Java to process large data sets using Map and Reduce tasks. Writing spark jobs using Scala in Zeppelin and deploying it on AWS EMR. Uploading data from various sources into HBase, AWS S3 in Parquet, JSON, CSV format. Querying HBase using Apache Pheonix. Developing technical designs for new application features. Developing workflow charts, diagrams, and design documents. Reviewing code of junior developers and other team members. 07/2018 – 07/2020 Gurgaon, India Senior Software Developer Nearbuy.com (Formerly Groupon India) Managed search engine based on elastic search Wrote multiple spark jobs using scala and Java. Developed various services using Nodejs and Java for Merchant center app and web. Reactive programming using Spring Webflux. Real-time analytics using Kafka as a messaging queue. Wrote unit test cases for the services. Designed database structure for the services. Using HBase, MongoDB, Bigquery, and Postgres. Integrated backend with Android, iOS, and Web application. Deployed application on AWS and Ali cloud. Managed sessions using Redis for the Nodejs application. Managed Continuous Integration and Continuous Delivery process implementation. Reviewed the code of other team members and assisted them in their tasks. Designed REST APIs using Swagger. Created Low-Level design and flowcharts for the implementations. 10/2016 – 06/2018 Gurgaon, India Senior Associate Technology Nagarro Software Private limited Developed high volume and low-latency applications for revenue management systems and delivering high availability and performance. Integrated applications by designing database architecture and server scripting. Developed scalable application using Microservice architecture. Documented Low-Level Design. Developed new features using AngularJS and Angular4 and created interactive graphs for the application using WebGL. Integrated data from various back-end services and databases Identifying bottlenecks and bugs, and devised solutions to these problems. Reviewed code and help maintain code quality, organization, and automation. Deployed backend and UI application. Assisted other team members in their tasks. Worked on complex data analyzing and statistical applications using R. Built Proof of concept using Unreal engine and Blender. 08/2015 – 10/2016 Gurgaon, India Associate Technology Nagarro Software Private limited Built microservices using Spring Boot, Spring Cloud, and Netflix OSS using the Agile Software Development model. Built services interacting through a combination of REST and RabbitMQ broker. Developed UI using AngularJS. Worked on Packaged management tools like NPM, Bower along with JavaScript task runner Grunt. Secured microservices using OAuth 2.0 and Spring security. Implemented Request/Response model for marshalling/unmarshalling JSON with Jackson and GSON libraries Unit Tested application using Junit and Mockito. Developed proof of concept using Unity3D and Blender 08/2014 – 08/2015 Gurgaon, India Juniors Associate Technology Nagarro Software Private limited, Developed and automated data load process for various modules of Revenue Management Web-enabled applications. Developed objects in Java encapsulating database access and business logic. Built reusable Java classes with JDK using Java API, specialized in Providing Interactive User Interfaces. Designed and Implemented databases for developed Java applications employing Relational Data Modeling Methodology. Made heavy use of PL/SQL Utilized JDBC and SQL for communication with the database. Utilized JMS queues for coupling different stages of the business process. Developed Front end using various web technologies Developed HTML games using phaser.js Languages English Punjabi Hindi Skills Programming Languages Java, C#, Scala, R(basics), JavaScript, Typescript Search Engine Elasticsearch Databases Oracle, MongoDb, Hbase, MySQL, SQL Server 2014 Frameworks Spring Web flux, Spring Boot, Spring, Struts, OAuth 2.0, Spring Security, Spring MVC, Express.js Middleware Kafka, RabbitMQ, JMS Web Development Angular, AngularJS, HTML5, CSS3, Java Script, Typescript, Bootstrap, AJAX, jQuery, JSON, YAML, Vue.js Serialization/Framework Jackson, Kryo, GSON Unit Testing tool Junit, Mockito, Selenium, Jmeter Netflix OSS Zuul, Ribbon, Hysterix, Eureka, Feign Design Methodlogy Agile-Scrum, Test Driven Development Other tools/ Framework Unity, Blender, Webgl, SVG, d3.js, Jstree.js, Webix.js, Phaser.js, Plotly.js IDE Webstorm, Spring Tool Suite Eclipse Kepler, Brackets, Visual Studio, Net Beans, Intellij, Sublime, Visual Studio Code, R Studio SCM Subversion, Git Big Data Processing Apache Spark Java EE Servlets, JSP and JSPX, JPA, JDBC, JMS Education 2010 – 2014 Amritsar, India B.Tech (Electronics and Communication Engineering) Guru Nanak Dev University CGPA - 8.92 2008 – 2010 Amritsar, India XII D.A.V Collegiate Senior Secondary School 2008 Goindwal Sahib, India Xth Guru Amar Dass Public School