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I am a senior full-stack Java developer with 9+ years delivering enterprise applications across banking, healthcare, and retail. I design and implement scalable microservices, robust APIs, and responsive frontends, collaborating closely with product, QA, UX, compliance, and architecture teams to translate business needs into reliable software. I thrive in Agile environments, turning requirements into robust designs while improving CI/CD, observability, and cloud-native delivery. I enjoy mentoring teammates, writing clean code, and delivering measurable business value through performance, security, and maintainability.…I am a senior full-stack Java developer with 9+ years delivering enterprise applications across banking, healthcare, and retail. I design and implement scalable microservices, robust APIs, and responsive frontends, collaborating closely with product, QA, UX, compliance, and architecture teams to translate business needs into reliable software. I thrive in Agile environments, turning requirements into robust designs while improving CI/CD, observability, and cloud-native delivery. I enjoy mentoring teammates, writing clean code, and delivering measurable business value through performance, security, and maintainability.

ROJANA K

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am a senior full-stack Java developer with 9+ years delivering enterprise applications across banking, healthcare, and retail. I design and implement scalable microservices, robust APIs, and responsive frontends, collaborating closely with product, QA, UX, compliance, and architecture teams to translate business needs into reliable software. I thrive in Agile environments, turning requirements into robust designs while improving CI/CD, observability, and cloud-native delivery. I enjoy mentoring teammates, writing clean code, and delivering measurable business value through performance, security, and maintainability.…I am a senior full-stack Java developer with 9+ years delivering enterprise applications across banking, healthcare, and retail. I design and implement scalable microservices, robust APIs, and responsive frontends, collaborating closely with product, QA, UX, compliance, and architecture teams to translate business needs into reliable software. I thrive in Agile environments, turning requirements into robust designs while improving CI/CD, observability, and cloud-native delivery. I enjoy mentoring teammates, writing clean code, and delivering measurable business value through performance, security, and maintainability.

Available to hire

I am a senior full-stack Java developer with 9+ years delivering enterprise applications across banking, healthcare, and retail. I design and implement scalable microservices, robust APIs, and responsive frontends, collaborating closely with product, QA, UX, compliance, and architecture teams to translate business needs into reliable software.

I thrive in Agile environments, turning requirements into robust designs while improving CI/CD, observability, and cloud-native delivery. I enjoy mentoring teammates, writing clean code, and delivering measurable business value through performance, security, and maintainability.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Senior Java Full Stack Developer at UBS Financial Services

July 1, 2024 - Present

Led migration of large-scale wealth- and multi-entity client data into an AWS-based Wealth Governance Platform. Built a high-performance Angular 17 SPA and Spring Boot microservices deployed on AWS ECS/EKS, with NgRx for state management to support complex advisor workflows and entity hierarchies. Created a reusable UI component library with guards, interceptors, and form validation, and integrated Adobe Experience Manager as a headless CMS for compliant content delivery across micro-frontends. Modernized legacy JSP/Struts applications by migrating to Angular-based micro-frontends while exposing REST and GraphQL APIs. Implemented OAuth2/JWT-based authentication with AWS Cognito and centralized token governance. Migrated Java 17 services to Java 21 using virtual threads to improve scalability. Standardized API contracts with backward-compatible versioning and OpenAPI documentation; integrated with enterprise MuleSoft API management. Built event-driven microservices with Apache Kafka; su

Senior Java Full Stack Developer at Mayo Clinic

November 1, 2022 - June 1, 2024

Led a cross-functional team to modernize Dynamic Health Imaging Management System by standardizing backend on Java 17 and Spring WebFlux, and building reactive GraphQL services for imaging, EHR, and operational data. Re-platformed the UI to React 18 with Redux Toolkit, reducing load times via module federation and Suspense. Built a GPU-accelerated DICOM viewer and a PWA for offline capture; implemented a reactive ingestion pipeline with Project Reactor scatter-gather and backpressure controls. Exposed a composite patient GraphQL schema via Spring Boot WebFlux; integrated Azure AD/OAuth2 resource-server flow. Added end-to-end tracing with OpenTelemetry and Spring AOP; instrumented Azure Monitor. Deployed on Azure Kubernetes Service behind API Management with mutual TLS and FluxCD for GitOps. Implemented data governance using Cosmos DB, Azure Cache for Redis, and partitioned Azure SQL; used Cosmos DB change feeds for live updates. Crafted multi-stage Azure DevOps pipelines with SonarClou

Java / J2EE Developer at Wells Fargo

January 1, 2021 - October 1, 2022

Modernized teller and reconciliation UIs using jQuery, HTML5, CSS3, Bootstrap, and AJAX; introduced client-side heartbeat and field-level encryption to meet PCI and usability requirements. Parallelized data aggregation with Java 11 CompletableFuture to reduce API latency. Delivered SOAP services with Spring Web Services and REST with Spring Security; configured auditing with Spring AOP. Orchestrated nightly settlement processing via Spring Batch; migrated monolithic SOA modules to Spring Boot behind an API façade with versioning and throttling. Migrated JMS workloads to ActiveMQ/IBM MQ with durable subscriptions and DLQ routing. Optimized persistence with JPA/Hibernate, Oracle 12c partitioning, and materialized views to accelerate month-end reporting. Implemented PL/SQL procedures for fraud scoring and currency conversion. Stored high-volume historical events in Cassandra with TTL-based retention. Containerized services with Docker and built CI pipelines with Jenkins; deployed on AWS

Java / J2EE Developer at Walmart

February 1, 2019 - December 1, 2020

Developed retail-facing modules using HTML5, CSS3, JavaScript, jQuery; JSP/JSTL views with Spring MVC; built interactive data grids, modal dialogs, and form-driven workflows. Modernized XHTML/DHTML to semantic HTML5 and implemented client-side validation. Implemented server-side logic with Java 8 and Spring MVC, Spring JDBC/DAO, and Hibernate for metadata persistence. Integrated Walmart's internal catalogs using SOAP (JAX-WS) and transformed XML with JAXB/XSLT. Built REST endpoints for responsive UI and consumed SOAP services for richer integrations. Performed SVN/Ant to Git + Maven + Jenkins migrations; containerized with Docker and deployed on AWS EC2.

Java / J2EE Developer at App Labs

September 1, 2016 - November 1, 2018

Created HTML, CSS, and JavaScript/JQuery-driven UI and forms; designed and implemented web presentations with JSP/JSTL and Spring MVC. Implemented client-side validations with JavaScript and JQuery; used CSS Blueprint for responsive grid layouts and cross-browser support. Built backend services in Java 8 with Spring MVC, Spring JDBC, and Hibernate; integrated SOAP (JAX-WS) with XML transformations. Built data-access layers with Spring JDBC Templates and optimized Oracle SQL queries; used ActiveMQ for asynchronous messaging. Deployed on Tomcat/WebLogic with SVN and Maven; created Jenkins-based CI pipelines.