Java Full Stack Engineer with Microservices Expert

Kalyan Vasanth Reddy Gadila

Java Full Stack Developer

937-***-**** ***************@*****.*** Kalyan Vasanth ABOUT ME: Experienced Java Full Stack Engineer with 5+ years of expertise in architecting and implementing enterprise-scale web solutions. Specialized in backend development using Java, J2EE, Spring Boot, and Hibernate, alongside rich front-end interfaces built with Angular, React, HTML5, CSS3, and TypeScript. PROFESSIONAL SUMMARY

Strong backend expertise using Java, Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate, JDBC, and RESTful APIs, building cloud-native microservices architectures.

Proven experience deploying and managing containerized applications with Docker, Kubernetes, AWS, AWS ECS, and Pivotal Cloud Foundry, supported by CI/CD pipelines using Jenkins, OneOps, Maven, and Git.

Hands-on experience with event-driven and messaging platforms including Apache Kafka, JMS, IBM MQ, ActiveMQ, RabbitMQ, and MQ Series for scalable, high-throughput distributed systems.

Full stack UI development expertise using HTML5, CSS3, JavaScript, TypeScript, Angular, React, Node.js, Bootstrap, and JSON/XML, delivering responsive and standards-compliant user interfaces.

Strong data and quality engineering background with Oracle, MySQL, PostgreSQL, MongoDB, Spring Data, and Hibernate, along with TDD and test automation using JUnit, TestNG, Mockito, Selenium, Cypress, Playwright, JMeter, and SoapUI.

Actively leveraging GitHub Copilot for AI-assisted development, with practical exposure to AI & ML, NLP, LLMs, and Generative AI, including prompt engineering, integrating REST-based AI services, and embedding GenAI capabilities into enterprise Java applications.

Strong experience with enterprise application servers and operating environments, including Apache Tomcat, JBoss, WebLogic, WebSphere, and deployments across Linux, Unix, and Windows, ensuring high availability and performance.

Solid foundation in software architecture and design best practices, applying SOLID principles, GoF design patterns (Factory, Singleton, Facade, Observer), Enterprise Integration Patterns, and API security standards for scalable and secure enterprise systems.

TECHNICAL SKILLS

Programming Languages: Java, J2EE, C, C++, C#, SQL

Frameworks & Libraries: Spring, Spring Boot, Spring Core, Spring MVC, Spring Security, Spring Web Services, Hibernate, JPA

Web & UI Technologies: HTML5, CSS3, JavaScript, TypeScript, ReactJS, Angular, Bootstrap, JSON, XML

Web Services & APIs: RESTful APIs, SOAP, Spring REST, Microservices Architecture

Messaging & Streaming: JMS, Apache Kafka, RabbitMQ, ActiveMQ, IBM MQ

Databases: Oracle, MySQL, SQL Server, PostgreSQL, MongoDB

Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, Jenkins, DevOps Pipelines

Application & Web Servers: Apache Tomcat, JBoss, WebLogic, WebSphere, IBM HTTP Server

Build, Version Control & IDEs: Maven, Gradle, Ant, Git, GitHub, IntelliJ IDEA, Eclipse, Spring Tool Suite

Testing & Monitoring Tools: JUnit, TestNG, Mockito, Selenium, Cypress, Playwright, JMeter, SoapUI, Log4j

AI-Assisted & Emerging Technologies: GitHub Copilot, Generative AI, AI/ML Fundamentals, NLP, LLMs, Prompt Engineering, AI API Integration.

WORK EXPERIENCE

Java Full Stack Developer Huntington Bancshares Incorporated – Columbus, Ohio Oct 2025 – present Huntington Bancshares Incorporated is an American bank holding company. I lead the development and delivery of Java-driven applications, ensuring seamless testing and deployment for a wide range of services. Responsibilities

Built and implemented scalable, cloud-first solutions on AWS leveraging EC2, S3, DynamoDB, SNS, SQS, and AWS Lambda, using Java-based event-driven architectures to support high-availability enterprise banking systems.

Designed and delivered loosely coupled microservices architectures using Spring Boot, Spring MVC, Spring AOP, Spring Actuator, and Hibernate/JPA, adhering to 12-Factor App standards, RESTful service design, and enterprise integration best practices.

Led the transformation of legacy monolithic applications into modern Spring Boot microservices, deploying and scaling them on Pivotal Cloud Foundry (PCF) with manifests, service bindings, and centralized configuration for improved agility and maintainability.

Engineered resilient and high-throughput distributed systems using Apache Kafka, Reactive programming models, Hystrix, and Zipkin, enabling fault tolerance, performance optimization, and end-to-end observability across microservices.

Established and maintained automated CI/CD pipelines utilizing Jenkins, Maven, Docker, and Git, streamlining build, test, and deployment processes across multiple environments while ensuring release consistency and quality.

Developed responsive and user-centric front-end solutions using Angular, React, HTML5, CSS3, Bootstrap, and JavaScript, delivering reusable UI components and Single Page Applications (SPA) aligned with enterprise UX standards.

Implemented efficient data persistence strategies across MySQL, Cassandra, and MongoDB using Hibernate, including schema modeling, indexing, query optimization, and performance tuning for transactional and analytical workloads.

Utilized GitHub Copilot to accelerate development and improve code quality, while applying AI & ML, NLP, LLM, and Generative AI concepts through API-driven integrations, prompt engineering, and intelligent automation within enterprise financial workflows.

Environments: AWS, AWS Lambda, Cassandra, CI/CD, DynamoDB, Hibernate, Java, Java 8, Jenkins, Kafka, Kubernetes, AWS Lambda, Microservices, MySQL, Node.js, PCF, React, S3, Spring, Spring Boot, Spring MVC, SQL. Java Full Stack Developer KeyBank – Cleveland, Ohio Feb 2025 - Jun 2025 KeyBank is an American regional bank. Organized under the publicly traded KeyCorp. Designed and delivered high-performance, secure backend services using Java-based frameworks including Spring Boot and Hibernate, exposing RESTful interfaces to support complex business workflows, data operations, and seamless system integrations. Responsibilities:

Implemented asynchronous and event-based communication mechanisms using JMS and Apache Kafka, enabling fault-tolerant, scalable message exchange across distributed enterprise banking applications.

Contributed to cloud transformation efforts by supporting POC migrations to Microsoft Azure, enhancing application scalability and performance, and deploying Docker-based microservices to Kubernetes through automated Jenkins CI/CD pipelines.

Designed and developed secure, loosely coupled microservices using Spring Boot, JAX-RS (Jersey), OAuth, and RESTful services, enabling seamless system integration through JSON and XML data formats.

Developed and enhanced enterprise web applications using JSF, Spring Framework, Spring Web Flow, EJB, Hibernate, and PrimeFaces, applying established design patterns such as MVC, DAO, and Business Delegate.

Built efficient and high-performing data access components utilizing SQL, Hibernate, JPA, and Jackson, while leveraging Java 8 features including Streams, Lambda expressions, Multithreading, and Collections for optimized processing.

Delivered end-to-end full stack solutions by integrating Angular 8 and Node.js front-end applications with Spring Boot–based REST APIs, supporting responsive and scalable user experiences. Environments: Angular, Azure, CI/CD, Docker, Java, Jenkins, Jira, JMS, JSON, Kafka, Kubernetes, Microservices, Node.js, OAuth, RESTful, S3, Spring, Spring Boot, SQL, Web Services, XML. Java Full Stack Developer Aurobindo Pharma Ltd. (Virtusa) – Hyderabad, India Dec 2021 - Aug 2023 Aurobindo Pharma Limited is an Indian multinational pharmaceutical manufacturing company; it manufactures generic pharmaceuticals and active pharmaceutical ingredients. Built scalable and secure server-side solutions with Java, leveraging Spring Boot, Hibernate, and REST APIs to manage intricate business logic, data handling, and backend connectivity. Responsibilities:

Implemented efficient data storage and access layers using MongoDB, OpenJPA, and other NoSQL technologies, integrating backend services with Node.js applications through Mongoose, and fine-tuning service performance to support high-throughput transactional workloads.

Played a key role in building next-generation microservices-based platforms, designing and developing secure and scalable services using Spring Boot, Spring MVC, JAX-RS, and RESTful APIs, with deployments across Pivotal Cloud Foundry (PCF) and AWS environments.

Developed dynamic and user-friendly front-end interfaces using React.js, JavaScript, HTML5, CSS3, and AJAX, creating reusable UI components and advanced features such as data exports, location-based search, and comprehensive client-side validations.

Enabled seamless enterprise system integration by implementing Mule ESB–based workflows, asynchronous messaging with ActiveMQ and JMS, and UNIX shell scripting to orchestrate ETL and Informatica-driven data pipelines, ensuring reliable data movement across systems.

Ensured high-quality and stable releases by adopting Test-Driven Development (TDD) with JUnit, implementing automated CI/CD pipelines, containerizing services with Docker, and maintaining centralized logging using Log4j and Logback. Environments: Agile, AWS, CSS, Docker, Eclipse, HTML, HTML5, Java, Java 8, JavaScript, jQuery, JSP, JUnit, Log4j, Microservices, MongoDB, Mongoose API, MVC, Node.js, NoSQL, PCF, React, RESTful, Servlets, Spring, Spring Boot. Java Developer MedPlus Health Services Ltd. – Hyderabad, India April 2020 - Nov 2021 MedPlus Health Services is an Indian pharmacy retail chain. Collaborated in an Agile development environment, actively contributing to sprint planning, daily stand-ups, and retrospective sessions, following agile practices to ensure timely delivery of high-quality software within budget.

Responsibilities:

Engineered full-lifecycle enterprise applications using Spring, Spring Boot, Hibernate, and microservices, integrating with legacy systems and data workflows using Java and Clojure.

Built high-performance backend services with Cassandra, Oracle, and MySQL, optimizing database schemas, handling concurrent operations efficiently, and leveraging Java 8 Streams, Lambdas, and Multithreading for scalable processing.

Established robust CI/CD processes with Docker, Jenkins, and GitHub, to automate builds, streamline containerized deployments, and accelerate release cycles.

Developed interactive, responsive front-end applications with React.js, ensuring application reliability via JUnit testing, Selenium automation, Log4j logging, and automated reporting through Jasper Reports.

Collaborated in Agile/Scrum teams, participating in sprint planning, daily stand-ups, and retrospectives, tracking progress in Jira, deploying on WebSphere, and designing secure REST APIs with JAX-RS (Jersey) using JSON/XML payloads. Environments: Agile, Cassandra, Docker, Git, GitHub, Hibernate, IntelliJ, Java, Java 8, Jenkins, Jira, JMS, JSON, JUnit, Log4j, Microservices, MySQL, Oracle, Oracle 9i, React, RESTful, Selenium, Spring, Spring Boot, SQL, XML. CERTIFICATIONS

Oracle Certified Professional (OCP) – Java SE 11 Developer

AWS Certified Developer – Associate

Pega Certified System Architect

EDUCATION DETAILS

Masters in Computer Science - Wright state university, Ohio

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