Sai Krishna V Email & Phone Number

• Implemented Microservices architecture using Spring Boot to make application smaller and independent.• Used Spring IOC for object instantiation, resource lookup.• Monitored service health check from Spring Boot admin console using Swagger UI registered Microservices.• Proficient in Core Java Design Patterns like Singleton, Proxy, Factory. • Build services utilizing the Pivotal Cloud Foundry (PCF) as a platform as a service for RESTful services. • Designed Microservices… Show more • Implemented Microservices architecture using Spring Boot to make application smaller and independent.• Used Spring IOC for object instantiation, resource lookup.• Monitored service health check from Spring Boot admin console using Swagger UI registered Microservices.• Proficient in Core Java Design Patterns like Singleton, Proxy, Factory. • Build services utilizing the Pivotal Cloud Foundry (PCF) as a platform as a service for RESTful services. • Designed Microservices business components and RESTful service endpoints using Spring Boot.• Responsible for maintaining and expanding AWS (Cloud Services) infrastructure using AWS Stack especially worked with database setup and maintenance and created AWS EC2 instances.• Migrated database from EC2 to RDS using AWS Data Migration Service (DMS).• Developed AWS Lambda based Microservices interacting with DynamoDB, SNS/SQS using AWS-SDK.• Worked on AWS, High Availability Practices and deploying backup/restore infrastructure.• Implement and maintain the monitoring and alerting of production and corporate servers/storage using Cloud Watch. Migrated applications from internal data center to AWS Show less

Seattle, Washington, United States

• Engineered AWS solutions for sponsored ads to Amazon subscribed customers through Amazon ADS Marketing stream.• Led the development and maintenance of 14+ Amazon CDK packages for AWS stack creation, managing resources such as S3 buckets for subscription information, resulting in a 20% improvement in deployment efficiency.• Managed subscription lifecycle for 100+ partners and advertisers, activating or deactivating resources for sponsored product ads based on subscription… Show more • Engineered AWS solutions for sponsored ads to Amazon subscribed customers through Amazon ADS Marketing stream.• Led the development and maintenance of 14+ Amazon CDK packages for AWS stack creation, managing resources such as S3 buckets for subscription information, resulting in a 20% improvement in deployment efficiency.• Managed subscription lifecycle for 100+ partners and advertisers, activating or deactivating resources for sponsored product ads based on subscription status.• Incorporated Kestrel EMR jobs using CDK packages to process data from federated gateways in AWS Glue, reducing data processing time and storage costs by 30%.• Employed TypeScript for AWS resource creation and Kotlin for integration tests, achieving a 25% increase in test coverage and ensuring 99.9% message delivery accuracy.• Implemented monitoring with alarms for message ingestion failures, reducing downtime by 20% and ensuring smooth data flow from SQS to Lambda with successful delivery to SNS or Firehose.• Created a new CI/CD deployment pipeline using CDK, incorporating Canary deployments, and custom metrics, and streamlining a single pipeline instead of 14 packages.• Initiated integration testing with Canary resources in a unified pipeline, enforcing test-driven development and reducing production and deployment issues across 14 pipelines.• Performed root cause analysis on internal and customer data sets, resolving data failures in pipelines reducing data-related incidents by 20%.• Articulated the design documents to outline proposed solutions for project implementations, highlighting trade-offs between each option, conducting code or design reviews, providing constructive feedback, and reducing the deployment issues by 10%.• Communicated with stakeholders daily for updates in requirements, design, and architecture, and reviewed new designs, creating user stories and estimating story points for the team, resulting in increase in project alignment. Show less

Texas, United States

• Analyses, Design, Implementation, and Support. Developing back-end services using Spring Boot, Java, Python and DJango.• Responsible for the Design, Development, Unit Testing, and System Integration Testing of assigned tasks.• Involved in the change request and response process, troubleshooting issues raised by customers, and providing resolution.• Developed Merge jobs in Python to extract and load data into MySQL database.• Participating in development projects and upgrades.… Show more • Analyses, Design, Implementation, and Support. Developing back-end services using Spring Boot, Java, Python and DJango.• Responsible for the Design, Development, Unit Testing, and System Integration Testing of assigned tasks.• Involved in the change request and response process, troubleshooting issues raised by customers, and providing resolution.• Developed Merge jobs in Python to extract and load data into MySQL database.• Participating in development projects and upgrades. Involved with business entities on feasibility, and the technical requirement for a new initiative.• Created new microservices for the customers to enroll and get reward points.• Created new microservices for the business consumers to refer a business for value addon and get rewards.• Built AJAX pages using PHP and created various asynchronous web applications.• Assigned the responsibilities of troubleshooting problems with PHP and other web technologies.• Worked with the Model-View-Controller MVC architectural pattern and developed web applications using this pattern or on existing MVC frameworks.• Actively working on production IRs assigned in the Jira tool. • Involved in migrating the microservices from PCF to the Kubernetes environment.• Used Jenkins to build and deploy the application and GitHub for code repository and version control. • Written and executed several stored procedures, triggers, packages, views, and functions using the SQL Developer tool. • Used Postman to test the API workflow on the JSON files.• Used Kibana, Grafana, and Splunk to monitor the logs and maintain the reports. • Created and injected Spring services, Spring controllers, and DAOs to achieve dependency injection and to wire objects of business classes.• Worked extensively on developing controllers, Interfaces, and implementation classes using Spring MVC framework & used a Microservice architecture with Spring Boot based service through REST. Show less

Houston, Texas, United States

• Actively participated in Agile development, fostering team cohesion and communication.• Contributed to all phases of software development life cycles, including design, development, and testing.• Collaborated with business analysts to align functional specifications with project goals.• Utilized Java 8 Lambda expressions for streamlined iteration and chain operations.• Employed web technologies like HTML5, CSS3, JavaScript, jQuery, Angular, and NodeJS for UI development.•… Show more • Actively participated in Agile development, fostering team cohesion and communication.• Contributed to all phases of software development life cycles, including design, development, and testing.• Collaborated with business analysts to align functional specifications with project goals.• Utilized Java 8 Lambda expressions for streamlined iteration and chain operations.• Employed web technologies like HTML5, CSS3, JavaScript, jQuery, Angular, and NodeJS for UI development.• Designed and implemented persistence layers using JQuery, Ajax, and third-party libraries.• Developed reusable UI components in Angular for code reusability.• Integrated authentication mechanisms using Spring Security and OAuth2.• Demonstrated proficiency in vanilla JavaScript, jQuery, and React JS for frontend interactivity.• Implemented SOAP and RESTful web services for seamless integration.• Utilized microservices architecture and Spring Boot for backend development.• Managed AWS services for cloud deployment and Docker containers for consistency in application deployment. Show less

Plano, Texas, United States

• Designed a ReactJS dashboard for real-time security alert monitoring, featuring custom widgets and interactive visualizations, ensuring seamless navigation and immediate incident notifications reducing security breaches by 30%.• Enhanced user interactions with React components, leading to a 15% increase in efficiency during setup and login processes.• Developed responsive web application for backend system using AngularJS with HTML and CSS.• Responsible for client-side UI… Show more • Designed a ReactJS dashboard for real-time security alert monitoring, featuring custom widgets and interactive visualizations, ensuring seamless navigation and immediate incident notifications reducing security breaches by 30%.• Enhanced user interactions with React components, leading to a 15% increase in efficiency during setup and login processes.• Developed responsive web application for backend system using AngularJS with HTML and CSS.• Responsible for client-side UI Validation and implementing Business logic based on user selection using jQuery and AngularJS.• Integrated QR code generation, streamlining the 2FA setup process and reducing user effort by 25%.• Led the development of a secure Node.js authentication server, with a 30% increase in user registration and login security.• Implemented a Node.js back-end for the Intrusion Detection System (IDS), achieving a 25% improvement in data collection and normalization efficiency.• Developed an analysis engine using Python and machine learning libraries (Scikit-learn, TensorFlow), enhancing IDS capabilities and reducing false positives by 20 incidents.• Monitored production activities, addressing severity issues promptly, and participated in enterprise application start-up and shut-down procedures, contributing to a 20-hour decrease in downtime and ensuring smooth operations.• Collaborated with security teams to identify and mitigate 15 critical vulnerabilities within enterprise systems within three months, ensuring a robust security posture.• Reduced unauthorized incidents by 20% by implementing two-factor authentication using OAuth2.0 and Duo.• Involved in the Agile SCRUM development process was used for the product life cycle management.• Designed and Developed complex UI screens using HTML5, CSS3, JavaScript, AJAX, GWT, jQuery, jQuery-EasyUI, and JSP. Show less

Chennai, Tamil Nadu, India

• Engaged in full SDLC following Agile methodologies, including requirements gathering and technical design.• Implemented MVC architecture using Spring MVC Framework, incorporating JAVA/J2EE design patterns for scalability.• Developed single-page applications with AngularJS/Angular, integrating RESTful Web Services via Spring MVC and Hibernate.• Deployed applications on Azure cloud services, configuring real-time data pipelines with Apache Kafka.• Proficient in configuring Java… Show more • Engaged in full SDLC following Agile methodologies, including requirements gathering and technical design.• Implemented MVC architecture using Spring MVC Framework, incorporating JAVA/J2EE design patterns for scalability.• Developed single-page applications with AngularJS/Angular, integrating RESTful Web Services via Spring MVC and Hibernate.• Deployed applications on Azure cloud services, configuring real-time data pipelines with Apache Kafka.• Proficient in configuring Java objects with ORM mapping in Hibernate and managing MongoDB instances.• Created interactive front-end applications with HTML, CSS, and JavaScript, optimizing user experience.• Experienced in Docker and Kubernetes for Spring Boot application deployment with enhanced security.• Implemented Redux architecture and custom reusable React components for optimized website performance.• Proficient in data migration between relational and NoSQL databases, optimizing SQL queries for performance.• Designed XML schemas and transformed XML to XSLT style sheets for efficient data presentation.• Developed CI/CD Pipelines in Jenkins for automated service deployment and utilized AWS solutions.• Employed IBM WebSphere Application Server and tools like Maven, Git, and Jira for streamlined development. Show less

India

• Implemented Different Design patterns like singleton, factory and J2EE design patterns like Business delegate, session facade, Value object and DAO design patterns.• Used Spring Framework’s IOC Dependency Injection to inject Service Object using Service Locator Design Pattern into Action Classes.• Used Struts tag libraries in the JSP pages.• Developed a controller Servlet that dispatches request to appropriate Action Classes.• Developed the application under J2EE Architecture… Show more • Implemented Different Design patterns like singleton, factory and J2EE design patterns like Business delegate, session facade, Value object and DAO design patterns.• Used Spring Framework’s IOC Dependency Injection to inject Service Object using Service Locator Design Pattern into Action Classes.• Used Struts tag libraries in the JSP pages.• Developed a controller Servlet that dispatches request to appropriate Action Classes.• Developed the application under J2EE Architecture using spring, Struts, Hibernate, Servlets, Web logic and JSP. • Used Jenkins as a build tool for CI/CD (Continuous Integration and continuous deployment) process.• Used Node JS to resolve dependencies via Angular 2, TypeScript.• Good Knowledge in coded Java applications on both client-side and server-side using JDBC and advanced Multithreading.• Strong development skills in designing and developing Microservices along with Spring Boot and Coherence cache implementation.• Front end development utilizing HTML5, CSS3, and JavaScript leveraging the Bootstrap framework and a Java backend.• Experience with Java 8.0 features such as lambda expressions, Parallel operations on collections and for effective sorting mechanisms and new Date Time API. • Used Java Persistence API (JPA) and Hibernate for performing the Database Transactions. • Used join point and advice Spring AOP modules for cross cutting concerns and IOC for dependency injection.• Designed extensive additions to existing Java Web Application utilizing Service Oriented Architecture (SOA) techniques. Show less