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I'm Krishna Kolli, a Java Full Stack Developer with 3+ years of experience delivering scalable, secure, and high-performance enterprise applications. I specialize in Core Java, Spring Boot, Spring MVC, and microservices, with strong grounding in OOP, multithreading, and Agile/Waterfall SDLC. I enjoy turning complex requirements into robust, maintainable software and collaborating with cross-functional teams to deliver value. On the frontend, I work with ReactJS, Angular, and Vue.js to craft responsive user interfaces, while on the backend I design RESTful APIs, integrate with databases (Oracle, MySQL, PostgreSQL, MongoDB), and implement cloud deployments (AWS, Azure). I value code quality, automation, and security, using OAuth, JWT, SAML, and OpenID Connect, along with CI/CD pipelines and automated testing to ensure reliable releases.…I'm Krishna Kolli, a Java Full Stack Developer with 3+ years of experience delivering scalable, secure, and high-performance enterprise applications. I specialize in Core Java, Spring Boot, Spring MVC, and microservices, with strong grounding in OOP, multithreading, and Agile/Waterfall SDLC. I enjoy turning complex requirements into robust, maintainable software and collaborating with cross-functional teams to deliver value. On the frontend, I work with ReactJS, Angular, and Vue.js to craft responsive user interfaces, while on the backend I design RESTful APIs, integrate with databases (Oracle, MySQL, PostgreSQL, MongoDB), and implement cloud deployments (AWS, Azure). I value code quality, automation, and security, using OAuth, JWT, SAML, and OpenID Connect, along with CI/CD pipelines and automated testing to ensure reliable releases.

Krishna Kolli

Full Stack Developer, Web Developer, Back-End Developer, +4

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I'm Krishna Kolli, a Java Full Stack Developer with 3+ years of experience delivering scalable, secure, and high-performance enterprise applications. I specialize in Core Java, Spring Boot, Spring MVC, and microservices, with strong grounding in OOP, multithreading, and Agile/Waterfall SDLC. I enjoy turning complex requirements into robust, maintainable software and collaborating with cross-functional teams to deliver value. On the frontend, I work with ReactJS, Angular, and Vue.js to craft responsive user interfaces, while on the backend I design RESTful APIs, integrate with databases (Oracle, MySQL, PostgreSQL, MongoDB), and implement cloud deployments (AWS, Azure). I value code quality, automation, and security, using OAuth, JWT, SAML, and OpenID Connect, along with CI/CD pipelines and automated testing to ensure reliable releases.…I'm Krishna Kolli, a Java Full Stack Developer with 3+ years of experience delivering scalable, secure, and high-performance enterprise applications. I specialize in Core Java, Spring Boot, Spring MVC, and microservices, with strong grounding in OOP, multithreading, and Agile/Waterfall SDLC. I enjoy turning complex requirements into robust, maintainable software and collaborating with cross-functional teams to deliver value. On the frontend, I work with ReactJS, Angular, and Vue.js to craft responsive user interfaces, while on the backend I design RESTful APIs, integrate with databases (Oracle, MySQL, PostgreSQL, MongoDB), and implement cloud deployments (AWS, Azure). I value code quality, automation, and security, using OAuth, JWT, SAML, and OpenID Connect, along with CI/CD pipelines and automated testing to ensure reliable releases.

Available to hire

I’m Krishna Kolli, a Java Full Stack Developer with 3+ years of experience delivering scalable, secure, and high-performance enterprise applications. I specialize in Core Java, Spring Boot, Spring MVC, and microservices, with strong grounding in OOP, multithreading, and Agile/Waterfall SDLC. I enjoy turning complex requirements into robust, maintainable software and collaborating with cross-functional teams to deliver value.

On the frontend, I work with ReactJS, Angular, and Vue.js to craft responsive user interfaces, while on the backend I design RESTful APIs, integrate with databases (Oracle, MySQL, PostgreSQL, MongoDB), and implement cloud deployments (AWS, Azure). I value code quality, automation, and security, using OAuth, JWT, SAML, and OpenID Connect, along with CI/CD pipelines and automated testing to ensure reliable releases.

Skills

Experience Level

Expert

Expert

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Expert

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Expert

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Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Javanese

Fluent

Work Experience

Java Full Stack Engineer at Bank of America

May 1, 2024 - Present

Designed and deployed RESTful microservices using Java and Spring Boot within an SOA/Microservices architecture to support high-volume real-time transactional and fraud-detection workloads. Implemented Spring Cloud API Gateway with OAuth-based security for secure, scalable service-to-service communication. Built robust data persistence layers using Spring Data JPA (Hibernate) with PostgreSQL as the primary relational store and MongoDB for NoSQL, optimizing query performance and data availability. Integrated Apache Kafka for event-driven messaging to enable asynchronous processing, decoupled microservices, and improved throughput and fault tolerance. Implemented front-end interfaces using ReactJS, with HTML, CSS, JavaScript, and Bootstrap to deliver responsive, user-friendly experiences that consume backend REST APIs. Established and maintained CI/CD pipelines with Jenkins, Maven, and Git; enforced quality gates via SonarQube; implemented centralized logging with Log4j; deployed applica

Full Stack Engineer at UnitedHealth Group

December 1, 2022 - June 1, 2023

Developed and deployed RESTful microservices on Microsoft Azure using Java/Spring Boot, following Agile SDLC and implementing SOA/Microservices architecture for secure healthcare workflows. Implemented centralized API management with Spring Cloud API Gateway and OAuth security; standardized inter-service communication via JSON payloads. Designed persistence layer with Hibernate ORM, primarily using MySQL, optimizing transactional performance and data consistency. Built scalable Angular front-ends with component-based architecture, services, routing, and reactive forms; integrated RabbitMQ for asynchronous messaging to enhance fault tolerance and decoupling. Automated service and UI testing with JUnit/Mockito and Karma/Jasmine; API validation with Postman/SOAP UI/Swagger. Implemented DevOps practices through Jenkins-based CI/CD pipelines, Ant-based builds, and Git; enforced code quality through SonarQube and structured code reviews. Provisioned and managed Azure infrastructure using Ter

Junior Java Full Stack Engineer at UnitedHealth Group

July 1, 2021 - December 1, 2022

Maintained a monolithic web application using Spring MVC, Servlets, and JSP within a Waterfall SDLC, supporting structured development and formal documentation standards. Implemented RESTful web services for XML-based data exchange; designed the persistence layer using JPA; built dynamic UIs with Angular; worked with Oracle Database and optimized SQL queries to support transactional operations. Implemented unit and integration testing using JUnit and Mockito for backend components, and Karma and Jasmine for Angular UI testing. Managed source code using SVN, automated builds with Ant, and logging with Log4j; tracked development tasks and defects with TFS, ensuring traceability across the Waterfall lifecycle.