Java Full Stack Developer with Microservices Expertise

BHANU VINAY SRIRANGA EPPALI

JAVA FULL STACK DEVELOPER

*****.******@*****.*** 937-***-**** https://www.linkedin.com/in/vinay-eppali/ SUMMARY

Highly accomplished and results-driven Java Full Stack Developer with 6 years of professional experience designing, developing, and deploying robust, scalable enterprise applications across diverse industries, including financial services and high-volume e-commerce. Expertise spans the full software development lifecycle, utilizing Java, Spring Boot, and Microservices for the back end, combined with modern JavaScript frameworks like React, Angular for dynamic front-end development. Proven track record of delivering high-quality solutions, optimizing system performance, and collaborating effectively across cross-functional teams to meet complex business demands. TECHNICAL SKILLS

Programming Languages: Java (8, 11, 17+), Multithreading, Generics, OOPs, Python Back-End Frameworks: Spring Boot, Spring Core, Spring Data JPA/Hibernate, Spring Security, Spring Cloud Microservices Architecture: RESTful APIs, Microservices, Kafka, RabbitMQ, API Gateway Front-End Development: React.js, Angular, JavaScript, TypeScript, HTML5, CSS3, Redux, NgRx Cloud Platforms: AWS, Lambda, S3, Azure, GCP

DevOps and CI/CD: Docker, Kubernetes, Jenkins, GitLab CI/CD, Maven, Gradle, Terraform, CloudFormation Databases: PostgreSQL, Oracle, MySQL, MongoDB, Redis, SQL Query Optimization Testing and Quality: JUnit, Mockito, Integration Testing, End-to-End Testing, SonarQube Tools and Versioning: Git, GitHub, GitLab, Jira, Confluence, Splunk, Dynatrace, Swagger/OpenAPI PROFESSIONAL EXPERIENCE

Java Full Stack Developer Jul 2024 - Present

PNC Financial Services - Phoenix, AZ

● Spearheaded the design and implementation of a scalable Microservices infrastructure (Java 17, Spring Boot 3) to process account transfers, achieving peak throughput of 1,200 transactions per second (TPS) by leveraging Kafka Streams for asynchronous communication.

● Reduced critical API latency by 65% (from 150ms to 52ms) by optimizing database access patterns, migrating from JDBCTemplate to Spring Data JPA projections, and integrating Redis for look-aside caching of frequently requested customer data.

● Led the full-stack development of a new internal compliance reporting tool using Angular 15 and TypeScript, which automated weekly data compilation and saved the auditing department approximately 20 labor hours per month.

● Drove DevOps maturity by implementing Infrastructure as Code (Terraform) to provision AWS EKS/Azure AKS clusters, integrating into the CI/CD pipeline (Jenkins/GitLab) and enabling blue/green deployments.

● Engineered security enhancements by implementing certificate-based mTLS for inter-service communication and configuring a robust WAF (Web Application Firewall), successfully mitigating 50+ potential XSS and SQL injection threats in Q2.

● Designed and maintained the foundational component library for the customer-facing web platform using React functional components and Hooks, increasing component reusability across 5 major application modules and standardizing UI/UX.

● Successfully managed production stability by configuring detailed logging and metric collection via Prometheus/Grafana and setting up automated alerts, ensuring the application met its SLA of 99.99% uptime.

● Mentored junior developers on best practices for test-driven development (TDD) and effective unit/integration testing, raising the team's average code quality score on SonarQube by 12 points. Java Backend Developer Apr 2021 - Jul 2023

Target - Hyderabad, India

● Developed and maintained enterprise-scale Java 17/Spring Boot microservices for a high-volume Warehouse Management System (WMS)

● Architected a responsive React.js and Redux frontend "Control Tower" dashboard that allowed supervisors to monitor real-time labor productivity and wave status across multiple dock doors.

● Implemented sophisticated Inbound Logistics logic using Java, automating Advanced Shipping Notice (ASN) processing and blind receiving workflows to ensure inventory accuracy from the moment of arrival.

● Optimized Oracle PL/SQL stored procedures and complex SQL queries to handle massive datasets, ensuring that inventory lookups for millions of SKUs remained performant during peak seasonal surges.

● Engineered a Distributed Caching strategy using Redis and Spring Data JPA to reduce database load for frequently accessed pallet and location metadata.

● Developed asynchronous messaging patterns using Apache Kafka to synchronize inventory movements between the physical warehouse floor and the corporate ERP system in real-time.

● Built and integrated custom RESTful APIs for handheld RF Scanners, utilizing WebSockets to provide sub-second feedback to warehouse associates during high-speed picking and putaway tasks.

● Automated the deployment pipeline using Docker and Kubernetes, ensuring the WMS could scale horizontally to handle 5x traffic increases during holiday membership events.

● Utilized JUnit and Mockito for rigorous test-driven development (TDD), focusing on mission-critical logic such as inventory reconciliation and cycle count accuracy.

● Applied Spring Security and OAuth2 to manage role-based access control (RBAC), ensuring that only authorized personnel could modify inventory levels or override system-directed tasks. Java Full Stack Developer Jan 2019 - Mar 2021

Metlife - Hyderabad, India

● Pioneered the redesign of the core premium calculation engine using a highly concurrent Java Multithreading model and Spring Boot, reducing the time required to quote complex life insurance policies by 45%.

● Developed and maintained interfaces for mandatory state and federal regulatory reporting (e.g., NAIC) by mapping complex policy data from legacy mainframe systems into modern, searchable PostgreSQL/data warehouse structures.

● Instrumented a proactive customer notification system (alerts for upcoming payments, policy maturity) leveraging Kafka messaging services, directly contributing to a 10% decrease in late premium payments.

● Modernized the front-end agent workbench using React components, consolidating scattered policy information and reducing the average time agents spend processing customer service requests by over 2 minutes per call.

● Authored comprehensive API contracts (Swagger/OpenAPI) for new insurance product configurations, ensuring seamless integration and data consistency between the underwriting, sales, and policy servicing platforms.

● Implemented robust exception handling and auditing mechanisms within the claims system to track every modification to a policy record, satisfying rigorous internal audit requirements and financial compliance standards.

● Drove infrastructure efficiency by containerizing the entire policy enrollment application using Docker, which enabled rapid scaling during seasonal open enrollment periods with minimal intervention. EDUCATION

Master’s in Computer Science Aug 2023 - May 2025 University of Dayton - Dayton, OH

Bachelor’s in Electronics and Communication Engineering Aug 2015 - May 2019 Jawaharlal Nehru Technological University - Hyderabad, TG, India CERTIFICATIONS

AWS Certified Developer - Associate Amazon Web Services Oracle Certified Professional, Java SE Developer Oracle PCEP – Certified Entry-Level Python Programmer Python Institute

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