Manisha

Sr. Full Stack Developer at NRG Energy, Houston, TX

Designed and built Spring Boot 3.x microservices using Spring Cloud 2023.x stack, implementing modular architecture with Eureka, Config Server, Gateway, and Resilience4j for dynamic routing and fault tolerance. Integrated Spring Authorization Server updated to OAuth 2.1/OpenID Connect for centralized authentication and authorization. Developed reactive REST APIs using Spring Web Flux enabling high concurrency and non-blocking backpressure. Leveraged Apache Kafka with Kafka Streams and Avro Schema Registry for event-driven communication and real-time data processing. Employed a hybrid approach with Java 21, Kotlin, and Scala to optimize performance and code expressiveness. Migrated front-end from AngularJS to React 18 with Redux Toolkit, TypeScript, React Query, and Tailwind CSS, ensuring responsive UI. Automated CI/CD pipelines using GitHub Actions and Jenkins integrated with Docker, Kubernetes, and Helm for zero-downtime EKS deployments. Executed IaC using Terraform and AWS CDK to pro

Sr. Java/web services developer at HSBC, New York

Led backend development of scalable RESTful web services using Spring Boot 2.7+, migrating legacy modules to Spring Web Flux for improved non-blocking performance. Upgraded authentication to JWT-based OAuth 2.1 integrated with Spring Security and external providers. Migrated select services from Java 8 to Kotlin reducing boilerplate and simplifying logic. Designed event-driven architecture employing Apache Kafka for scalable messaging. Developed data access layers with Spring Data JPA and Spring JDBC Template, utilizing Java 17+ features like Lambda and Streams API. Modernized frontend from AngularJS to React 17+ with lazy loading and code-splitting. Maintained Node.js APIs with MongoDB via Mongoose for complex data operations. Documented APIs with Swagger and secured endpoints with OAuth2 and JWT. Managed multi-module builds using Maven and Gradle and deployed on WebSphere Application Server with Linux CLI tooling. Practiced Agile Scrum, performed peer code reviews, test automation, a

Sr. Java/web services developer at Travelport Inc, Denver, CO

Collaborated in Agile Scrum teams developing Spring Boot microservices migrating legacy Spring MVC applications. Utilized Java 8+ features such as Streams and Lambdas for domain modeling and functional programming enhancements. Integrated Spring Boot with Hibernate 5 for ORM, with performance optimizations on Oracle 12c. Built REST and SOAP web services (JAX-WS) tested using Postman and Swagger UI. Developed asynchronous messaging modules using JMS and ActiveMQ with structured logging implemented via Logback. Followed TDD and BDD practices with JUnit 5 and Spock (Groovy), implementing pair programming. Used Apache Camel for enterprise integration patterns and routing. Managed CI/CD pipelines with Jenkins, code quality checks with SonarQube, and version control with SVN. Handled production environment debugging using Linux shell commands and PuTTY.

Java Full stack developer at NIHAR INFO GLOBAL LTD, Hyderabad, India

Worked closely with product owners and business analysts to gather requirements and refine stories within Scrum sprints. Implemented service layer logic using Spring MVC and refactored legacy services to RESTful APIs with Spring Boot. Integrated Hibernate 5 for ORM with Oracle 12c and created transactional database operations. Developed SOAP services using JAX-WS and transitioned legacy SOAP services to REST using Open API 3.x. Managed asynchronous communication using JMS and ActiveMQ, developed SQL queries and stored procedures for data management. Automated builds and deployment via Jenkins pipelines integrated with Maven and SVN. Applied enterprise integration patterns using Apache Camel and monitored multiple production environments. Optimized REST endpoints for performance and maintenance.

Sr. Full Stack Developer at NRG Energy

Designed and built Spring Boot 3.x microservices with modular architecture using Spring Cloud 2023.x stack, integrating Spring Authorization Server for OAuth 2.1 and OpenID Connect compliance. Developed secure reactive REST APIs with Spring Web Flux for high concurrency. Leveraged Apache Kafka 3.x and Kafka Streams for event-driven communication and real-time data processing. Used Java 21, Kotlin, and Scala for backend development. Migrated frontend from AngularJS to React 18 with Redux Toolkit and TypeScript. Built CI/CD pipelines with GitHub Actions and Jenkins, deploying with Docker and Kubernetes on AWS EKS. Automated infrastructure provisioning with Terraform and AWS CDK. Utilized DB2 and PostgreSQL with Flyway in CI environments. Participated in Agile Scrum and SAFe processes, conducted code reviews, and mentored junior developers.

Sr. Java/web services developer at HSBC

Led backend development of secure, scalable RESTful services using Spring Boot 2.7+, migrating legacy components to Spring Web Flux. Upgraded authentication to JWT-based OAuth 2.1 with Spring Security and Spring Authorization Server. Migrated services from Java 8 to Kotlin, simplifying code with functional paradigms. Designed event-driven architecture with Apache Kafka. Developed data access layers with Spring Data JPA and JDBC Template. Modernized frontend by replacing AngularJS with React 17+ and TypeScript. Maintained backend Node.js APIs with MongoDB. Applied Swagger Open API 3 for API documentation and security. Managed multi-module builds with Maven/Gradle and Jenkins. Deployed on WebSphere, handled Linux configurations, and actively participated in Agile Scrum, peer code reviews, and automation testing.

Sr. Java/web services developer at Travelport Inc

Worked in Agile Scrum teams migrating Spring MVC apps to Spring Boot microservices with RESTful design. Used Java 8+ Streams and Lambdas for domain modeling. Integrated Spring Boot with Hibernate 5 on Oracle 12c, optimizing performance. Developed REST and SOAP services using JAX-WS, tested with Postman and Swagger UI. Designed messaging with JMS and ActiveMQ with detailed logging. Employed unit and integration testing with JUnit 5 and Spock under TDD/BDD practices. Implemented enterprise integration patterns using Apache Camel. Deployed via Jenkins CI/CD, used SonarQube for code quality, maintained SVN version control, and worked closely with Linux environments.

Java Full stack developer at NIHAR INFO GLOBAL LTD

Collaborated with product owners and BAs to gather requirements in Scrum sprints. Designed and implemented service layer using Spring MVC and refactored legacy services into REST APIs. Developed RESTful APIs with Spring Boot, layered architecture and clean code. Integrated Spring ORM with Hibernate 5 on Oracle 12c. Created and migrated SOAP services to REST using Open API 3.x. Worked on JMS messaging with ActiveMQ asynchronously processing events. Wrote SQL and stored procedures for passenger and flight data. Automated builds and deployments using Jenkins, Maven, and SVN. Implemented enterprise integration patterns with Apache Camel and ensured production support and logging.

Sr. Full Stack Developer at NRG Energy

Designed and built Spring Boot 3.x microservices with modular architecture, leveraging Spring Cloud 2023.x (Eureka, Config Server, Gateway, Resilience4j) for dynamic routing and fault tolerance. Integrated Spring Authorization Server to replace legacy OAuth 2.0 with OAuth 2.1/OpenID Connect compliant authentication. Developed secure, reactive REST APIs using Spring Web Flux. Implemented event-driven communication using Apache Kafka 3.x (Kafka Streams, Avro Schema Registry). Migrated front-end from AngularJS to React 18 with Redux Toolkit. Built CI/CD pipelines with GitHub Actions and Jenkins, containerized services with Docker, and deployed to Kubernetes (EKS) with Helm. Automated infrastructure provisioning using Terraform and AWS CDK. Managed DB2 and PostgreSQL with Flyway migrations. Mentored junior developers and contributed to internal libraries to improve developer experience.

Sr. Java/Web Services Developer at HSBC

Led backend development of secure, scalable RESTful web services using Spring Boot 2.7+, migrating legacy components to Spring Web Flux for non-blocking performance. Upgraded authentication to JWT-based OAuth 2.1, integrating with external providers using Spring Authorization Server. Migrated selected services from Java 8 to Kotlin; designed event-driven architecture with Apache Kafka. Built robust data access layers with Spring Data JPA and Spring JDBC Template; modernized frontend with React 17+. Developed Node.js APIs connected to MongoDB. Documented APIs with OpenAPI 3 (Swagger) and secured access. Deployed on WebSphere and managed Linux-based configurations; used AWS Cloud for API hosting and scalability. Followed Agile Scrum, code reviews, and CI/CD via Jenkins.

Sr. Java/Web Services Developer at Travelport Inc

Migrated Spring MVC applications to Spring Boot-based microservices, applying modular architecture and RESTful design principles. Developed domain models using Java 8+ features (Streams, Lambdas) with Hibernate 5 for ORM on Oracle 12c. Built internal REST and SOAP services (JAX-WS) and tested APIs with Postman/Swagger. Designed messaging modules using JMS/ActiveMQ and implemented enterprise integration patterns with Apache Camel. Deployed applications via Jenkins CI/CD pipelines and collaborated with QA and offshore teams to meet sprint goals.

Java Full Stack Developer at NIHAR INFO GLOBAL LTD

Collaborated with product owners to refine requirements in Scrum sprints. Refactored legacy services into RESTful architectures using Spring MVC/Boot, Hibernate, and Oracle 12c. Created SOAP-based services (JAX-WS) and gradually migrated to REST with OpenAPI 3.x. Worked on JMS with ActiveMQ and Apache Camel for integration. Wrote unit/integration tests, performed deployments via Jenkins with Maven/SVN, and maintained production-grade monitoring in Linux environments.

Sr. Full Stack Developer at NRG Energy

Designed and built Spring Boot 3.x microservices with Spring Cloud 2023.x, enabling dynamic routing, centralized configuration, and fault tolerance. Implemented secure, reactive REST APIs with Spring Web Flux, integrated Apache Kafka (3.x) with Streams and Schema Registry for scalable event-driven data processing, and migrated the front-end to React 18 with Redux Toolkit. Built CI/CD pipelines with GitHub Actions and Jenkins, orchestrated deployments to Kubernetes (EKS) using Docker and Helm, and performed IaC provisioning with Terraform and AWS CDK. Managed DB2 and PostgreSQL schemas with Flyway for versioned migrations; collaborated in Agile (Scrum/Safe) environments and mentored junior developers.

Sr. Java/web services developer at HSBC

Led backend development of secure RESTful web services using Spring Boot 2.7+, migrated components to Spring Web Flux for non-blocking performance, and upgraded authentication to JWT-based OAuth 2.1 with Spring Security. Migrated selected services to Kotlin, implemented event-driven architectures with Apache Kafka, and modernized front-end components with React. Documented APIs with OpenAPI/Swagger and contributed to test automation and CI/CD practices.

Sr. Java/web services developer at Travelport Inc

Migrated Spring MVC applications to Spring Boot microservices, integrated Hibernate 5 with Oracle 12c, and built Node.js APIs connected to MongoDB. Implemented JMS/ActiveMQ messaging for asynchronous processing, added OpenAPI/Swagger documentation, and leveraged Apache Camel for enterprise integration patterns. Worked in Agile settings and contributed to Jenkins-based CI/CD pipelines.

Java Full stack developer at NIHAR INFO GLOBAL LTD

Collaborated with product owners in Scrum to refine requirements, migrated legacy Spring MVC services to REST-based microservices, developed REST and SOAP services with JAX-WS, integrated JMS with ActiveMQ, and optimized Oracle DB operations. Built and maintained CI/CD pipelines with Jenkins, utilized Apache Camel for routing/transformation, and ensured secure access to production environments.

Senior Full Stack Developer at NRG Energy

Designed and built Spring Boot 3.x microservices with modular architecture, leveraging Spring Cloud 2023.x (Eureka, Config Server, Gateway, Resilience4j) for dynamic routing, centralized configuration, and fault tolerance. Integrated Spring Authorization Server to replace legacy OAuth 2.0 with OAuth 2.1/OpenID Connect for centralized authentication and fine-grained authorization. Developed secure, reactive REST APIs with Spring WebFlux to support non-blocking, high-concurrency workloads. Implemented event-driven communication using Apache Kafka 3.x (Kafka Streams, Avro schemas). Delivered backend services in a polyglot mix of Java 21, Kotlin, and Scala to balance performance and productivity. Migrated frontend from AngularJS to React 18 with Redux Toolkit, TypeScript, React Query, and Tailwind CSS. Used OpenAPI 3.x (SpringDoc) to auto-generate API docs and empower test environments; Swagger UI for endpoint exploration. Built CI/CD pipelines with GitHub Actions and Jenkins, deploying to

Senior Java/Web Services Developer at HSBC

Led backend development of secure, scalable RESTful services using Spring Boot 2.7+, migrating components into Spring Web Flux for non-blocking performance. Upgraded authentication to JWT-based OAuth 2.1, integrating with Spring Security and external authorization providers via Spring Authorization Server. Migrated selected services from Java 8 to Kotlin, reducing boilerplate. Designed event-driven architectures using Apache Kafka; implemented robust data access with Spring Data JPA and JdbcTemplate. Modernized frontend by replacing legacy AngularJS with React 17+, implementing lazy loading and code-splitting. Developed Node.js APIs connected to MongoDB with Mongoose. Documented security using Swagger (OAuth2, JWT, API Keys). Built reusable UI components with TypeScript/ES6+ and Dojo/React integration. Used OpenAPI 3 with SpringDoc. Managed multi-module builds with Maven/Gradle and CI via Jenkins. Deployed on WebSphere AS with server-side config via Putty. Leveraged AWS Cloud for hosti

Senior Java/Web Services Developer at Travelport Inc

Collaborated in Agile Scrum teams using JIRA and Rally; migrated Spring MVC applications to Spring Boot microservices; migrated Java 8 to Kotlin to simplify logic; designed event-driven messaging using Apache Kafka with Kafka Streams and MongoDB/Mongoose for data handling. Built REST and SOAP services (JAX-WS) and tested APIs with Swagger/OpenAPI. Implemented enterprise integration patterns with Apache Camel; front-end modernization to React 17+; deployed via Jenkins CI/CD; leveraged AWS Cloud and WebSphere; performed code reviews and TDD/BDD practices with JUnit 5 and Spock; maintained SVN-based source control.

Java Full Stack Developer at NIHAR INFO GLOBAL LTD

Collaborated with product owners and BAs to gather requirements and refine user stories in Scrum sprints. Designed service-layer logic with Spring MVC (Java 8) and XML/Java config; refactored legacy services into REST. Developed REST APIs using Spring Boot; integrated Spring ORM with Hibernate 5 for Oracle 12c. Created SOAP services using JAX-WS and gradually migrated to REST; worked with JMS (ActiveMQ) for asynchronous processing. Wrote SQL queries and stored procedures in Oracle; performed deployment automation with Jenkins, Maven, and SVN. Used Apache Camel for enterprise integration patterns; secured production access and conducted code reviews; logged and debugged in Linux environments.

Sr. Full Stack Developer at NRG Energy

Led modernization of legacy systems into a cloud-native microservices platform, designed Spring Boot microservices, integrated Kafka, deployed via Docker/Kubernetes on AWS EKS, and implemented CI/CD with GitHub Actions and Jenkins, while mentoring junior developers.

Sr. Java/web services developer at HSBC

Back-end development of secure, scalable REST services using Spring Boot and Web Flux; migrated components to Kotlin; implemented JWT/OAuth 2.1 security; introduced event-driven architecture with Kafka; modernized front-end from AngularJS to React; enhanced logging and CI/CD deployment.

Sr. Java/web services developer at Travelport Inc

Migrated Spring MVC apps to Spring Boot microservices; built internal REST and SOAP services; implemented JMS/ActiveMQ messaging; worked with Oracle DB; performed code reviews and maintained CI/CD pipelines; integrated with Apache Camel for enterprise integration.