Senior Full-Stack Java Developer (11+ Years)

Krishna Chaitanya Doppalapudi

Sr. Full Stack Java Developer

Email: ****************************@*****.*** 480-***-**** LinkedIn: linkedin.com/in/krishnachaitanya

PROFESSIONAL SUMMARY

Senior Full Stack Java Developer with 11+ years of experience delivering scalable, high-performance enterprise applications. Expertise in Java (8–21), Spring Boot, Microservices, Kubernetes, AWS/GCP/PCF, and modern front-end frameworks (Angular, React, TypeScript). Strong background in cloud-native design, security (OAuth2, JWT), CI/CD, DevOps, and event-driven architectures using Kafka/RabbitMQ. Proven ability to modernize legacy systems, optimize performance, and lead cross-functional teams in Agile environments.

TECHNICAL SKILLS

Languages: Java, JavaScript, TypeScript, SQL, Python, C/C++

Frameworks: Spring Boot, Spring Cloud, Hibernate/JPA, Spring Security, WebFlux, Angular, React

Cloud / DevOps: AWS (ECS, Lambda, Aurora, S3), GCP (GKE, Pub/Sub), PCF, Docker, Kubernetes, Helm, Terraform, Jenkins, GitLab CI

Web: HTML5, CSS3/SCSS, Bootstrap, Tailwind, Node.js, Express

Databases: PostgreSQL, MySQL, Oracle, MongoDB, Cassandra, BigQuery

APIs: REST, SOAP, GraphQL

Messaging: Kafka, RabbitMQ, JMS, IBM MQ

Monitoring: Prometheus, Grafana, ELK, CloudWatch

Tools: Git, Maven, Gradle, JUnit, Mockito, Selenium, Cypress

PROFESSIONAL EXPERIENCE

Fifth Third Bank – Sr. Java Full Stack Developer

Charlotte, NC Dec 2023 – Present

Project: Digital Banking Modernization Platform

Key Responsibilities:

Developed 12+ Spring Boot 3 microservices using Java 21; improved API response time by 25%.

Built secure REST APIs with JWT & OAuth2, reducing security incidents by 30%.

Deployed services on AWS ECS, Lambda, Aurora PostgreSQL with 99.9% uptime.

Automated infra with Terraform, reducing setup from 2 days 3 hours.

Enhanced reliability using Kubernetes + Helm, improving deployment consistency.

Improved JVM performance, reducing latency 20–30%.

Integrated third-party FinTech APIs to expand digital banking capabilities.

Impact Metrics: 25% faster API response, 30% reduction in security incidents, 99.9% uptime, 40% faster deployments

Tools Used: AWS, Kubernetes, Helm, Terraform, Jenkins, Kafka, RabbitMQ

Optum Rx – Java Full Stack Developer

Minnesota Sep 2021 – Dec 2023

Project: Pharmacy Benefit Management (PBM) Modernization

Key Responsibilities:

Built Java 17 microservices using Spring Boot & WebFlux, handling 1M+ requests/day.

Migrated Angular 12 14, improving load times 40%.

Automated deployments via Helm + Jenkins, reducing errors.

Deployed microservices on AWS ECS, Lambda, Aurora, MongoDB.

Integrated with COBOL/CICS systems for backward compatibility.

Achieved 95%+ test coverage using JUnit, Mockito, Selenium.

Impact Metrics: 1M+ requests/day, 40% faster frontend load, 95%+ test coverage

Tools Used: Java 17, Spring Boot, Angular 14, AWS, Terraform, RabbitMQ, Jenkins

Palo Alto Networks – Java Full Stack Developer

Dallas, TX Apr 2019 – Aug 2021

Project: Cybersecurity Threat Intelligence Platform

Key Responsibilities:

Developed secure microservices using Java 8/11, Spring Boot, Spring Cloud.

Built UIs with Angular 7/8, TypeScript, Bootstrap.

Deployed applications via AWS ECS + Jenkins, reducing deployment errors 90%.

Implemented OAuth2/JWT, Hibernate optimizations, and API documentation with Swagger.

Impact Metrics: Reduced deployment errors by 90%, improved modularity and performance by 35%

Tools Used: Java 8/11, Spring Boot, Angular, AWS, Docker, Kubernetes, Swagger

Southwest Airlines – Java Full Stack Developer

Dallas, TX Sep 2017 – Mar 2019

Project: Retail Order Management & Customer Systems

Key Responsibilities:

Built microservices using Spring Boot with GCP GKE deployments.

Implemented Google Pub/Sub for event-driven workflows.

Developed React 17 frontends with Material-UI + Tailwind.

Achieved 95%+ test coverage via JUnit, Mockito, Selenium.

Impact Metrics: 35% higher throughput via DB optimization, 95%+ test coverage

Tools Used: Java, Spring Boot, React 17, Oracle, Cassandra, GCP, GKE

Federal Home Loan Bank of Atlanta – Java Developer

Atlanta, GA Dec 2015 – Aug 2017

Project: Enterprise Financial Services Integration Platform

Key Responsibilities:

Developed SOAP/REST services using JAX-WS, Axis, JAX-RS.

Integrated AngularJS frontends and RabbitMQ for async communication.

Used Hibernate/JDBC with PostgreSQL & SQL Server.

Impact Metrics: Improved backend integration efficiency by 30%

Tools Used: Java 7/8, J2EE, Hibernate, AngularJS, RabbitMQ

Global Payments – Java Developer

Dallas, TX Apr 2014 – Nov 2015

Project: High-Volume Payment Processing Platform

Key Responsibilities:

Built secure payment components using Java, Servlets, JSP, Hibernate.

Developed SOAP services with JAX-WS and JAXB.

Integrated Azure AD with MFA for secure authentication.

Impact Metrics: Increased transaction security compliance, improved service reliability

Tools Used: Java 7, J2EE, SOAP, Azure AD, MySQL

EDUCATION

Texas A&M University–Kingsville – Kingsville, United States

Master of Science in Computer Science Aug 2012 – Dec 2013

Jawaharlal Nehru Technological University, Kakinada – Andhra Pradesh, India

Bachelor of Technology in Computer Science and Engineering Sep 2008 – May 2012

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