► Developed enterprise application, with microservice architecture. Used Spring Cloud Config Server for centralized configuration of microservices► Implemented client-side load balancing using Ribbon, dynamic scaling using Eureka Naming Server and API Gateway using Zuul.► Used Spring Netflix Hystrix, Circuit Breaker to design fail over and fail back mechanism to switch between active and standby servers to ensure high availability of the microservices.► Designed Restful Web Services by following best practices for HATEOAS, Exception Handling, versioning and documented the same using Swagger► Used Spring Data JPA to develop the DAO layer for CRUD operations using Oracle. Utilized spring boot connection manager to define JDBC connection objects. Implemented various queries, consumed Stored Procedures using JDBC template and worked on various query optimization► Used Cucumber framework for BDD, Behavioral Driven Development, and Junit and Mockito for TDD, Test Driven Development.► Used Rallydev as project and workflow management tool to implement Agile Methodology of SDLC and tools such as Bitbucket, Jira and Confluence for easy management of project

Project - CitiRiskSearch, Citigroup►Developed a fast and lightweight search application using OpenNLP to process raw textual data and Solr indexer for information retrieval►Built Restful Web Services using Spring Boot to provide endpoints to Angular based front end application►Carried out Natural Language text processing using Apache OpenNLP api to build an effective text processing service.►Created trained and dictionary-based models to tag words in correct categories to build efficient queries for consumption by Apache Solr api►Configured both EmbeddedSolr and SolrCloud application for suggestion lookup and search result retrieval. Used EmbeddedSolr for unit testing and SolrCloud for integrated application.►Used Atlassian software development tools such as Bitbucket, Jira and Confluence for easy management of project

Cloud Development►Used Spring MVC to create multiple web pages, business validations based on the SRS and implemented various queries in Hibernate, consumed Stored Procedures using JDBC template and worked on various query optimization►Deployed a Spring Boot application with a MySQL database on AWS using Elastic Beanstalk and customized the Spring Boot configuration using environment variables►Created a Spring Boot application with AWS Java SDK to upload or download files to or from Amazon S3 buckets. Used Amazon IAM to maintain user credentials and created custom IAM policies to various groups defined within the organization►Configured a high-availability environment on EC2 to run a WordPress website and connected it to an RDS DB instance in a private VPC, external to AWS Elastic Beanstalk to achieve decoupling►Carried out configuration of Security Groups and Environment Properties of EC2 and RDS DB instance►Created Load Balancer to distribute incoming traffic across multiple EC2 instances in various Availability Zones to increase the fault tolerance and availability of the application. Achieved dynamic scaling of application for high availability through Auto Scaling►Used AWS S3 bucket for storage of source code, logs and artifacts created by Elastic Beanstalk►Monitored the load on instances, logs and other metrics using CloudWatch, set an alarm for trigger-based response of Auto Scaling and configured alerting of server and storage using SNS, Simple Notification Service Machine Learning►Applied data mining techniques, regression and clustering on historical dataset to evaluate applications for loans through merchant financing program►Carried out data preprocessing on millions of rows of data s using dataframes and packages such as dplyr and tidyr►Used ggplot and leaflet packages to create initial visualization for non-spatial and geospatial data respectively►Created an interactive web application using R shiny and hosted it on an AWS EC2 instance

Email Metadata Analytics (R, Shiny)►Collaborated with engineering and support teams to provide executive management with data visualizations and insights on the way Citibank work by utilizing email metadata as a source data set►Architected a Predictive Model approach which would allow Citibank to remove bottlenecks in communication processes and understand where employees could be better positioned to provide the most impact and productivity

Dynamic Chatbot►Leveraged AI and machine learning based technologies, including IBM Watson, Google api.ai and Facebook Wit.ai, to implement and integrate chatbots with various websites and mobile apps ►Researched the ease and feasibility of training the chatbot’s intents with information stored in database using various platforms, so that it could provide relevant answer to a user's query seamlessly

Automation of CaaS, Consulting-as-a-Service:►Identified technology for Cognizant EAM (Enterprise Architecture Management) processes and ITPM (IT Portfolio) services that could be deployed over a Cloud-based platform to be delivered as managed services over the Cloud ►Designed and automated the process of Gap Analysis service using BPMN (Business Process Model and Notation) tool, developed User Interface on top of it using front end technologies and deployed it over the Cloud

►Worked as a liaison between AMEX business and technical team to solve business problems by architecting IT solutions►Possess good knowledge of Electronic Money Management and payment processing in banking sector. Have worked extensively on different types of payments (Wire Payments, Credit Card, Charge Card, Mobile Payment) made through various front ends (online, mobile, customer executives) and on the Credit Card Life Cycle, such as clearing, reporting, settlement etc.►Analyzed requirements, reviewed design, optimized code, mapped out-of-system dependencies, provided design strategies for new business requirements/change requests, performed quality testing and provided user acceptance test support.►Collaborated extensively with client and managers from multiple IT firms to formulate efficient strategies and solutions for the challenges faced in cross-team/cross-firm coordination and integration of various tools/technologies in order to expedite defect free delivery and to ensure minimum disruption of business service for end users►Carried out functional and regression testing, this included planning and designing test plans and test strategies based on functional, business and technical requirements.►Spearheaded a team of five to automate regression testing suite for the end to end testing of Electronic Money Management domain, reducing the execution time from 10 hours to 2 hours►Applied data mining techniques on historical datasets to evaluate applications for loans through merchant financing program►Formulated complex queries and scripts to extract data from large datasets to facilitate in-depth analysis, reducing execution time by 70%.►Prepared Performance Metrics and generated reports for tracking customer benefits.►Conducted root cause analysis of system issues, reverse engineering for legacy systems and proposed ideas to improve functionality of system.►Resolved critical issues and maintained turnaround time well below stated SLA requirements

►Led a team of three that developed a tool on Web ADI which integrated Oracle platform with Excel, this in turn facilitated automation of data validation, insertion and other manipulations seamlessly by using a number of APIs and stored procedures, thus minimizing manual effort (now used in Infosys Reusable Repository ‘Encore’).►Developed a front end search page, using Oracle Application Framework, for imported customer data from multiple CSV files using SQL Loader and Oracle Apps, increasing productivity by 40%.►Created and customized Orcle Forms and standard Oracle pages using Form Builder and OAF page customization.►Developed work-flow charts and diagrams to ensure production team compliance with client’s requirements and deadlines, improving client relations.►Developed and maintained enterprise application using Spring Framework and established its connection with different databases (Oracle and DB2) using Hibernate Framework►Created XML parsers (DOM, SAX, Stacks) for exchange of data among different subsystems and synced the data from two servers into a single server►Established parallel synchronization between multiple devices using Java threads and Java executor framework►Designed the security module of the Restful Web Services using OAuth2 and proxy gateway

►Underwent specialized training in Oracle Electronic Business Suite.►Underwent on-the-job training for six months, learning C, C++, advanced java and RDBMS and Oracle resulting in a quick transformation of my career from an electronics engineer to computer engineer.