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Mahalaxmi Dobbala - sr.java full stack developer

akhilesh.s@tekconnectedges.com

Location: Remote, Remote, USA

Relocation: YES

Visa: GC

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CAREER OBJECTIVE Senior Java Full Stack Developer with 11+ years of experience delivering enterprise-grade applications across Banking, Financial Services, Healthcare, Insurance, and Retail domains. Proven expertise in Java 17/21, Spring Boot, Microservices, Angular, AWS, Apache Kafka, and CI/CD automation. Demonstrated success in building scalable, cloud-native backend systems and responsive frontend applications while collaborating effectively in Agile teams. PROFESSIONAL SUMMARY Designed and delivered Java Full Stack solutions across Banking, Financial Services, Healthcare, Insurance, and Retail domains. Consistently achieved system availability of 98.5% 99.7% and improved application performance by 20 30%. Utilized Spring Framework (Spring Boot, Spring MVC, Spring Cloud, Spring Security, Spring Data JPA, Hibernate ORM) for backend development. Designed robust and scalable microservices architectures aligned with business needs. Built and integrated RESTful APIs and SOAP Web Services for enterprise communication. Enabled seamless data exchange across multiple systems and applications. Implemented event-driven architecture (EDA) using Apache Kafka for scalable and reliable message processing. Improved asynchronous communication and ensured reliable message processing across services. Developed reactive applications using Spring WebFlux, Reactor, and RxJS for real-time data streaming. Enhanced data processing efficiency and system responsiveness. Engineered responsive UI applications using Angular (10 17), ReactJS and modern frameworks. Utilized TypeScript, JavaScript (ES6+), HTML5, CSS3, SCSS, Bootstrap, Tailwind CSS, Angular Material for frontend development. Implemented frontend state management using NgRx and Redux Toolkit for predictable data flow. Improved UI performance and optimized rendering behavior in large-scale applications. Deployed applications on cloud platforms including AWS, GCP, and Pivotal Cloud Foundry (PCF) for application deployment. Delivered scalable and secure cloud-native solutions. Utilized Docker and Kubernetes for containerization and orchestration of microservices. Ensured efficient deployment and management of distributed applications. Implemented CI/CD pipelines using Jenkins, Terraform, and Git-based workflows for automation. Improved release cycles by approximately 30% through streamlined deployment processes. Leveraged GitHub Copilot to accelerate code development, generate unit test cases, refactor code, and improve developer productivity. Designed Infrastructure as Code (IaC) and cloud automation strategies for scalable systems. Reduced operational costs by around $20K annually through optimized resource utilization. Developed Serverless architectures using AWS Lambda, Step Functions, and EventBridge for event-driven systems. Enabled scalable and efficient cloud-based processing solutions. Worked with databases including PostgreSQL, MySQL, Oracle, SQL Server, DB2, MongoDB, Cassandra, and BigQuery. Optimized performance using Redis caching, HikariCP, and connection pooling techniques. Implemented security frameworks using Spring Security, OAuth2.0, JWT, MFA, and SSO integrations. Ensured secure authentication and authorization across enterprise applications. Applied microservices design patterns using Resilience4j, Hystrix, Eureka, Zipkin, Sleuth, ELK Stack and monitoring tools like Prometheus and Kibana. Delivered 40+ microservices with ~99.5% uptime while improving system observability and release efficiency. Utilized testing frameworks such as JUnit, Mockito, Selenium, Cucumber, and Cypress for automation. Improved application reliability and ensured consistent validation across backend and frontend components. Worked with development tools including Maven, Eclipse, IntelliJ IDEA, and Visual Studio Code across Windows, Linux, and Unix environments. Managed builds and streamlined development workflows efficiently. Collaborated with cross-functional teams using Agile/Scrum methodologies, leveraging tools like JIRA, Swagger, and SonarQube. Delivered high-quality solutions while maintaining coding standards and improving team productivity. Programming Languages C, C++, Java 8/11/17/21, JavaScript, Python, SQL, PL/SQL Java/J2EE Technologies Core Java, Servlets 3.x, Spring 3.x/4.x/5.x, Spring Boot 2.x, Hibernate ORM, JPA, JTA, JDBC, EJB 2.x/3.x, JSP, JSTL, RMI, Swing. Frameworks Struts 2.5, Hibernate, Spring Batch, Spring Data, Spring Security, Spring Actuator, Drools Rule Engine, Spring MVC, Spring Web, Spring IoC, Spring Cloud, Thymeleaf. Design Patterns Singleton, Builder, Template, MVC, DAO, Front controller, Session Fa ade, Business Delegate, Bean Factory, Service Locator. Web Technologies HTML4/5, XHTML, CSS3, SCSS, Bootstrap 4/5, JavaScript, jQuery, XML, XSL, XSLT, JSON, NodeJS, Express JS, Angular 10/11/17, ReactJS, TypeScript, Redux. Databases MySQL, PostgreSQL, SQL Server 2012/14/16, Oracle 10g/11g/12c, MongoDB, DB2, BigQuery(GCP), Cassandra. Web Services SOAP, WSDL, JAX-RS, JAX-WS, RESTful, GraphQL, XSD Generative AI OpenAI APIs, LangChain, Prompt Engineering, Hugging Face Transformers, Retrieval-Augmented Generation (RAG), Vector Databases (FAISS, ChromaDB), GitHub Copilot, LLM Integration Messaging, security Logging Apache Kafka | OAuth2.0, JWT | Log4J, SLF4J, CloudWatch, Kibana Web Application Servers IBM WebSphere 6.x/8.x, Apache Tomcat 6.x/7.x/8.x, Oracle WebLogic 9.x/10.x, JBoss Testing Tools JUnit 5, Mockito, Jasmine, Karma, Cucumber, Mocha, Chai, Cypress. Version Control Bitbucket, Clear Case, SVN, Git, GitHub Cloud Technologies / DevOps Tools AWS (EC2, S3, DynamoDB, ECS, ECR, RDS, Kubernetes, Fargate, CloudWatch), GCP, Jenkins, Terraform, Docker, Azure, IBM Cloud Private, Pivotal Cloud Foundry (PCF) Methodologies Agile, Waterfall, Scrum, TDD (Test Driven Development), BDD IDE , Build Tools Eclipse, NetBeans, Spring Tools Suite (STS), IntelliJ IDEA, Sublime Text, Microsoft Visual Studio, Maven. Operating Systems Windows 10/11, Linux, Unix Bachelor s degree in information technology, Jawaharlal Nehru Technological University Hyderabad -2013 CERTIFICATIONS AWS Certified Solutions Architect Associate Oracle Certified Professional: Java SE 11 Developer WORK EXPERIENCE Client: Wells Fargo, Charlotte, NC Jan 2024 to Present Role: Sr. Java Full Stack Developer Project Title: Financial Data Processing & Integration System Project Description: This project was designed to manage and process financial data efficiently across various systems. It focused on ensuring that information flows smoothly between different components while maintaining accuracy and consistency. The system improved performance by reducing delays and supporting continuous data handling. It also strengthened system stability and allowed the platform to handle increasing workloads without disruption. Responsibilities: Developed Spring Boot 3 microservices using Java 21 with advanced features like records and sealed classes. Improved backend performance and ensured scalable architecture across enterprise systems. Utilized Java 21 features including virtual threads, Streams, and Lambdas for efficient processing. Optimized collection handling and enhanced performance in distributed environments. Built secure RESTful APIs using JWT and OAuth2.0 authentication mechanisms. Ensured safe communication and protected sensitive enterprise data across services. Developed cloud-native applications deployed on AWS Kubernetes clusters. Enabled scalable and resilient deployments across cloud environments. Implemented reactive services using Spring WebFlux and Java 21 for streaming applications. Enhanced real-time data processing and improved responsiveness under high-load conditions. Engineered frontend applications using Angular 17, HTML5, CSS3, SCSS, and Bootstrap. Implemented dynamic validations and improved UI responsiveness across browsers. Integrated AWS Lambda and Aurora PostgreSQL for event-driven processing workflows. Reduced processing latency by approximately 30% through optimized event handling. Leveraged TypeScript 4.9+ and updated RxJS operators for improved state management. Ensured type safety and enhanced maintainability of frontend applications. Developed modular UI components using Angular Standalone Components and integrated JAXB API for XML binding. Improved reusability and streamlined frontend-backend data exchange. Performed performance tuning using Angular DevTools and profiling tools. Identified bottlenecks and optimized component rendering for better application efficiency. Created Angular HTTP interceptors to inject JWT tokens into outgoing requests. Strengthened authentication and ensured secure API communication. Designed and developed REST-based microservices using Spring Boot, Spring Data JPA, and Hibernate. Deployed services using Docker containers for scalable architecture. Integrated microservices with legacy COBOL/CICS systems using Kafka and REST API gateways. Ensured seamless data exchange between modern and legacy platforms. Defined routing using Angular Router module and implemented lazy loading strategies. Built dynamic and responsive web applications using Angular 17 features. Migrated legacy Angular 8/11 applications to Angular 17. Improved performance and removed deprecated dependencies across UI components. Implemented backend services using Spring Boot, Spring IoC, and AOP for dependency injection and transaction management. Reduced configuration complexity and improved modularity. Configured AWS IAM Multi-Factor Authentication (MFA) using Google Authenticator and Virtual MFA. Enhanced application security through multi-layer authentication mechanisms. Developed persistence layers using Spring JPA, Hibernate, and PostgreSQL. Ensured efficient database transactions and optimized connection pooling. Implemented data processing workflows using Groovy scripts and Spring Boot to distribute JSON payloads. Enabled integration with 40+ downstream applications. Utilized AWS Lambda, S3, API Gateway, and EC2 for scalable serverless processing. Enabled high availability, fault tolerance, and auto-scaling capabilities. Deployed microservices using Docker on AWS ECS and developed streaming applications using Spring WebFlux. Ensured scalable deployment and efficient data streaming. Designed and deployed applications using AWS services including EC2, S3, Lambda, CodeDeploy, CodePipeline, and Kubernetes. Automated infrastructure provisioning using Terraform. Built CI/CD pipelines using Jenkins and GitHub Actions for automated deployments. Ensured consistent and reliable delivery across environments. Managed AWS environments across dev, QA, and production stages. Monitored applications using Prometheus, CloudWatch, and Kibana for observability and alerting. Utilized advanced PL/SQL features including records, tables, and dynamic SQL. Improved database performance and optimized query execution. Implemented asynchronous messaging using Apache Kafka for reliable message processing. Converted system architecture into Service-Oriented Architecture (SOA) for better scalability. Developed microservices communication using Apache Kafka and integrated with distributed systems. Managed Kafka clusters using Zookeeper and Scala-based services. Built automated test suites using Selenium, Cucumber, JUnit, and Mockito. Improved application reliability and ensured consistent functional validation. Worked with MongoDB and NodeJS (Mongoose) for NoSQL data persistence. Enabled flexible data storage and integration with backend services. Environment: Java 21, J2EE, Spring Boot 3, Spring MVC, Spring Security, Spring JPA, Hibernate, RESTful APIs, Microservices, Angular 17, TypeScript 4.9+, HTML5, CSS3, SCSS, Bootstrap 4/5, Kafka, Apache CXF, OAuth2.0, JWT, AWS (EC2, S3, RDS, Lambda, API Gateway, Kubernetes, CloudWatch, IAM, Fargate), Docker, Jenkins, GitHub Actions, Terraform, MongoDB, PostgreSQL, Prometheus, Kibana, Application Insights, JUnit 5, Mockito, Selenium, Cucumber, Log4j, Git, GitHub, Agile/Scrum, Maven. Client: State of California, Sacramento, CA. Dec 2020 to Dec 2023 Role: Java Full Stack Developer Project Title: Government Digital Services Platform Project Description: This project aimed to modernize government services by transforming traditional processes into a more accessible digital platform. It focused on improving how different systems interact and ensuring seamless communication across departments. The platform helped reduce delays, improved operational efficiency, and enabled faster service delivery. It also enhanced system monitoring and ensured better handling of increasing workloads while maintaining stability. Responsibilities: Utilized Java 17 features including Streams and Lambda expressions for bulk data processing. Improved application performance and optimized collection operations in distributed systems. Implemented frontend and backend logic using JavaScript, TypeScript, JSON, Bootstrap, and NodeJS. Built responsive and interactive user interfaces for enterprise applications. Developed Spring Boot microservices with minimal configuration for rapid deployment. Accelerated development cycles and improved application scalability across environments. Applied Spring IoC and AOP for dependency injection and transaction management. Improved modularity and reduced tightly coupled components. Designed and deployed 15+ microservices using Spring Boot and Apache Kafka on AWS EC2/EKS. Improved process efficiency by approximately 30% and enabled scalable service communication. Collaborated with stakeholders to gather functional requirements and refine system design. Reduced post-UAT changes by approximately 25% through effective requirement analysis. Implemented monitoring using AWS CloudWatch and Splunk for real-time system tracking. Reduced incident response time by approximately 30% and improved system observability. Utilized Prometheus, Kibana, and Application Insights for metrics, logging, and tracing. Enhanced visibility into application performance and system health. Optimized frontend performance using Angular 15, implementing AOT compilation and lazy loading. Improved application load times and reduced unnecessary resource usage. Designed responsive UI components using Angular Material 15 and Tailwind CSS. Enhanced user experience with modern and scalable interface design. Leveraged TypeScript 4.9+ for strict typing and maintainable frontend code. Integrated MongoDB for NoSQL data storage and improved runtime performance tracking. Developed persistence layers using Spring JPA, Hibernate, and PostgreSQL with HikariCP. Ensured efficient database transactions and optimized connection pooling. Built secure APIs using Spring Security, OAuth2.0, and JWT authentication. Ensured secure access control and protected sensitive data across services. Implemented cloud infrastructure using AWS services including EC2, S3, Lambda, API Gateway, CodeDeploy, and CodePipeline. Enabled scalable and automated deployment processes. Designed and deployed applications on Kubernetes (EKS) using Docker and Helm charts. Streamlined container orchestration and simplified application management. Developed CI/CD pipelines using Jenkins, GitHub Actions, and Terraform for automation. Improved deployment efficiency and ensured consistent delivery across environments. Utilized Apache Kafka for asynchronous messaging in microservices architecture. Ensured reliable communication between distributed services. Developed and secured SOAP and RESTful web services using Apache CXF. Integrated APIs with backend services and ensured secure communication. Built automated test cases using JUnit and Mockito for backend validation. Improved application stability and reduced defects through testing strategies. Monitored applications using Splunk and Kibana dashboards for real-time analytics. Ensured system reliability and proactive issue resolution. Created API documentation using Swagger and OpenAPI standards. Improved developer collaboration and simplified external integrations. Environment: Java 17, J2EE, Spring Boot 2.x, Spring MVC, Spring Security, Hibernate ORM, RESTful APIs, Microservices, Angular 15, TypeScript 4.9+, Kafka, OAuth2.0, JWT, AWS (EC2, S3, Lambda, API Gateway, CodeDeploy, CodePipeline, EKS, CloudWatch), Docker, Jenkins, GitHub Actions, Terraform, PostgreSQL, MongoDB, Swagger, Splunk, Prometheus, Kibana, Application Insights, SonarQube, JUnit 5, Mockito, Git, Agile/Scrum, Maven. Client: CVS Health, Woonsocket, RI May 2018 to Nov 2020 Role: Java Full Stack Developer Project Title: Healthcare Retail Operations System Project Description: This project was designed to support retail healthcare operations by streamlining how orders and related data are handled. It focused on improving data flow, ensuring reliable processing, and maintaining system stability under heavy workloads. The system enhanced efficiency by reducing manual intervention and enabling smooth operations across different services. It also ensured that the platform could scale with increasing demand while maintaining consistent performance. Responsibilities: Designed and implemented scalable applications using Java 11, Spring Boot, and Hibernate ORM. Ensured compliance with HIPAA regulations while securely handling PHI (Protected Health Information). Developed microservices architecture using Spring Cloud with Circuit Breaker and Config Server patterns. Supported interoperability with healthcare systems following FHIR (R4) and HL7 v2 messaging standards. Optimized deployments using blue-green strategies on AWS ECS/EKS environments. Ensured minimal downtime for critical healthcare services and uninterrupted patient-related operations. Built secure RESTful APIs using Spring MVC, JWT, and OAuth2.0 authentication. Protected sensitive healthcare data and enforced strict data privacy and access controls. Managed healthcare data using JPA, Hibernate, Apache Cassandra, and PostgreSQL. Ensured data integrity and compliance with HIPAA data storage and encryption standards. Developed dynamic UI components using ReactJS (React 16), Hooks, and Context API. Built intuitive healthcare dashboards for efficient patient and operational data visualization. Implemented state management using Redux and Thunk middleware for predictable data flow. Improved responsiveness for healthcare applications handling real-time updates. Optimized database queries in Cassandra and PostgreSQL for high-volume healthcare data processing. Improved throughput by approximately 35% while maintaining compliance requirements. Resolved production issues in healthcare order and service APIs with quick turnaround. Ensured system stability and minimized disruptions in healthcare workflows. Designed responsive UI components using Bootstrap 4 and Material-UI. Improved accessibility and usability for healthcare users across multiple devices. Implemented JWT-based authentication and RBAC security for user access control. Ensured only authorized users accessed sensitive healthcare information. Developed caching and performance optimization using Python and NodeJS. Reduced response time by approximately 25% for healthcare service interactions. Built automated test frameworks using JUnit, Mockito, Selenium, Jasmine, and Karma. Ensured reliability and compliance of healthcare applications through continuous testing. Implemented CI/CD pipelines using Jenkins and GitHub Actions with SonarQube integration. Maintained secure and consistent deployment of healthcare applications. Containerized applications using Docker and deployed on AWS ECS/EKS with Kubernetes orchestration. Enabled scalable and compliant healthcare system deployments. Utilized AWS services (EC2, S3, RDS, API Gateway, Lambda, CloudWatch) for cloud operations. Ensured secure, scalable, and highly available healthcare infrastructure. Integrated Apache Kafka messaging for event-driven communication between services. Supported real-time healthcare data exchange across systems. Created API documentation using Swagger and Postman. Improved collaboration and simplified integration of healthcare services. Environment: Java 8/11, Python, ReactJS (React 16), Spring Boot 2.x, Spring Cloud, Spring Security, RESTful APIs, Microservices, Kafka, OAuth2.0, JWT, AWS (EC2, S3, RDS, Lambda, API Gateway, CloudWatch), Docker, Kubernetes, Jenkins, GitHub Actions, PostgreSQL, Elasticsearch, JUnit 5, Mockito, SonarQube, Git, Agile/Scrum, Maven. Client: Comcast, Philadelphia, PA Aug 2016 to Apr 2018 Role: Java Full Stack Developer Responsibilities: Developed scalable backend services using Java 8, Spring Boot 1.5.x, and Spring MVC. Built lightweight microservices architecture to support modular and maintainable applications. Implemented secure authentication using OAuth2.0 and JWT for application security. Ensured protected access to APIs and improved secure communication between services. Utilized Hibernate ORM for database operations and optimized data persistence. Improved query efficiency and ensured reliable data management across applications. Automated deployments using Jenkins CI/CD pipelines on AWS ECS environments. Reduced manual deployment effort by approximately 35% and improved release consistency. Developed responsive UI applications using Angular 4/5, TypeScript, and Bootstrap. Built interactive frontend components with efficient data binding and user-friendly design. Containerized applications using Docker and deployed services on AWS EC2. Enabled scalable infrastructure and improved application portability across environments. Utilized AWS services (EC2, S3, CloudWatch) for hosting and monitoring applications. Ensured system reliability and enabled proactive issue detection. Implemented testing using JUnit, Mockito, Mocha, and Chai for backend and frontend validation. Improved code quality and reduced defects through automated testing practices. Environment: Java 8, Spring Boot 1.5.x, Spring Cloud, Microservices, Spring Security, RESTful APIs, OAuth2.0, JWT, Hibernate ORM, MongoDB, PostgreSQL, Angular 4/5, TypeScript, Bootstrap 4, Mocha, Chai, JUnit 5, Mockito, Swagger/OpenAPI Specification, AWS (EC2, ECS, CloudWatch, CloudTrail), Docker, Maven 3.6.x. Client: Vodafone, Bangalore, India. Sep 2013 to Mar 2015 Role: Java developer Responsibilities: Developed enterprise applications using Java 7, J2EE, Servlets, JSP, and Hibernate ORM. Built scalable backend solutions ensuring efficient data processing and application stability. Executed complex queries using MySQL and JDBC for data manipulation. Improved database performance and ensured efficient data retrieval operations. Implemented role-based authentication and session management for secure application access. Strengthened security and ensured controlled user authorization. Developed and deployed SOAP-based web services using JAX-WS and JAXB. Enabled seamless integration and reliable data exchange between systems. Integrated external systems using SOAP and RESTful Web Services for enterprise communication. Improved interoperability and ensured smooth data flow across applications. Utilized Log4J for application logging and monitoring system behavior. Improved debugging efficiency and ensured adherence to coding standards using SonarLint. Environment: Java 7, J2EE, Spring MVC, Hibernate, SOAP/REST Web Services, MySQL, Apache CXF, Apache Tomcat, WebLogic Servers, Jenkins, Selenium, JUnit, SVN, Log4J, Agile, Gradle. Keywords: cprogramm cplusplus continuous integration continuous deployment quality analyst artificial intelligence user interface javascript sthree information technology procedural language California North Carolina Pennsylvania Rhode Island