Stack Developer E-Commerce

PROFESSIONAL SUMMARY:

Experienced Java Full Stack Developer with 5+ years of expertise building scalable, secure enterprise applications across E-Commerce, Finance, and IoT domains. Skilled in Core Java (8–18), J2EE, and the Spring ecosystem (Boot, MVC, Batch, Security, AOP, WebFlow). Designed microservices and REST/SOAP APIs, and implemented event-driven systems using Kafka, RabbitMQ, JMS, Camel, IBM MQ, and MQTT integrated with AWS IoT Core. Proficient in full-stack development using ReactJS, Angular, NodeJS, JavaScript, TypeScript, HTML5, CSS3, JSP, and AJAX for responsive, dynamic applications.

Hands-on experience with AWS (EC2, S3, Lambda), PCF, and OpenShift for cloud-native deployments; containerization using Docker and Kubernetes; and CI/CD automation with Jenkins, Maven, and Gradle. Strong database knowledge in Oracle, MySQL, MongoDB, and Cassandra with JPA, Spring Data, PL/SQL, and performance tuning. Applied OOP principles and design patterns (DAO, Singleton, Factory) in modular applications. Contributed in Agile teams using Git, Bitbucket, SVN, JIRA, JUnit, Mockito, and monitored systems using ELK, Prometheus, and Grafana. Known for writing clean, production-ready code and delivering high-impact solutions in collaborative environments.

TECHNICAL SKILLS:

Languages: C, C++, Java, Python

Web Technologies: HTML5, CSS3, Java Script, ReactJs, Node.Js

Java/J2EE Technologies: J2EE, JDBC, Hibernate, Spring MVC, Spring Boot, Spring Security, REST, SOAP, Spring Data JPA

Application/Web Servers: Apache Tomcat

Relational Databases: SQL Server, MySQL, Mongo DB, Oracle Db

Cloud Environments: Amazon Web Services, Google Cloud Platform (GCP)

IDE: Eclipse, NetBeans, IntelliJ IDEA, Spring Tool Suite (STS), VS Code

Operating system: Windows, Linux, MacOS

Methodologies: Agile, Waterfall, Kanban, TDD (Test-Driven-Development), Scrum, Cucumber

Build Tools: Maven, Gradle, Jenkins

Version Control: GIT, BitBucket, SVN

Web Services: RESTful, RPC

Containerization and Orchestration: Docker, Kubernetes

Project Management & Issue Tracking: Jira, Confluence

TECHNICAL EXPERIENCE:

Client: United Health Group – California, United States Jul 2023 – Jun 2025

Role: Java Full Stack Developer

Responsibilities:

Designed and implemented secure, scalable RESTful and SOAP APIs using Spring Boot, Spring MVC, and Spring Security (OAuth/Basic Auth) to support enterprise-level applications, reducing security incidents by 40% and improving system integration efficiency.

Developed a suite of cloud-native microservices using Spring Boot and Swagger, deployed across Docker and orchestrated with Kubernetes, which increased deployment reliability and reduced infrastructure downtime by 30%.

Integrated third-party payment gateways (e.g., Stripe, PayPal, Authorize.Net) and implemented tokenization to safeguard sensitive cardholder data and meet industry compliance standards.

Integrated Apache Kafka to support real-time, event-driven architecture across services, improving message throughput and enabling asynchronous processing of over 2 million events per day.

Built responsive front-end components with ReactJS, integrated with RESTful APIs, enhancing user engagement by 25% through improved page load times and usability.

Engineered efficient persistence layers using Hibernate and Spring Data JPA with Oracle and PostgreSQL, optimizing query execution by 40% via advanced indexing and schema tuning.

Applied test-driven development using JUnit, Mockito, and Cucumber, improving code reliability and maintaining 90%+ test coverage across modules.

Streamlined CI/CD pipelines using Jenkins and Maven, reducing deployment time by 60% and accelerating release cycles through automation.

Architected and implemented a configuration-driven internal REST API framework, reducing API development time by 40% and accelerating feature delivery across multiple teams.

Created responsive web interfaces using JavaScript, TypeScript, jQuery, and Handlebars.js, improving usability and frontend performance, contributing to a 15% increase in user satisfaction.

Implemented centralized logging with Log4j, improving error traceability and reducing production debugging time by 50%.

Led Agile sprint initiatives with cross-functional teams, using JIRA for backlog management and sprint tracking, resulting in consistent delivery of features ahead of deadlines.

Maintained version control using Git, following best practices for branching and code reviews to ensure high-quality, maintainable codebase.

Environment: Java 8, J2EE, Spring Boot, Spring MVC, ReactJS, Microservices, Hibernate, OAuth, Basic Authentication, Swagger, RESTful web services, SOAP web service, Docker, Maven, Jenkins, Kafka, Git, JUnit, Mockito, Cucumber, Log4j.

Client: HDFC Bank – Hyderabad, India Jul 2021 – Nov 2022

Role: Java Full Stack Developer

Responsibilities:

Improved digital payments for HDFC Bank by building secure, scalable APIs using Java, Spring Boot, and REST, which supported real-time and instant money transfers for over 1 million users.

Enabled seamless integration with national banking networks by developing backend services that ensured accurate and RBI-compliant transfers, which cut down transaction exceptions by 30%.

Developed core backend logic for one-time payment features, ensuring scalability and data protection for high-value transactions, with zero reported security incidents post-deployment.

Led modernization of internal systems by migrating Java 1.4 applications to Java 8, improving performance by 25% and aligning with secure coding practices across the banking stack.

Automated large-scale payment workflows using Spring Batch and PL/SQL, allowing operations teams to handle millions of transactions daily.

Built a React.js-based internal access control system for 800+ bank employees, simplifying role assignments and reducing access-related support tickets by 35%.

Delivered an end-to-end approval and write-off portal using React.js and Spring Boot, enabling faster case resolutions and reducing manual errors in finance workflows by 20%.

Managed containerized deployments using Docker and Kubernetes on GCP and private cloud, improving app uptime and reducing environment issues by 25%.

Created centralized logging and monitoring dashboards using ELK, Prometheus, and Grafana, cutting production issue resolution time by 30% and improving system reliability.

Set up Jenkins-based CI/CD pipelines, automating builds and deployments for multiple banking modules, which helped reduce release cycles by 50% and improved delivery consistency.

Wrote detailed technical documentation for APIs and backend services, improving cross-team communication and reducing new developer onboarding time by 40%.

Environment: Java 8, Spring Boot, Spring MVC, RESTful APIs, React.js, PL/SQL, MySQL, MongoDB, Mongoose, Jenkins, Docker, Kubernetes, Google Cloud Platform (GCP), OpenStack, Git, ELK Stack (Elasticsearch, Logstash, Kibana), Prometheus, Grafana, Agile, Maven, Couchbase

Client: Clarivate – Hyderabad, India May 2019 – Jun 2021

Role: Java Full Stack Developer

Responsibilities:

Designed and implemented scalable, secure RESTful APIs handling over 16 million daily requests, using Java and Spring Boot to ensure high availability and performance.

Engineered full-stack award-tagging functionality with React UI and Java/Spring Boot backend, streamlining company recognition workflows and increasing operational efficiency.

Built an advanced filtering feature combining ReactJS and Spring Boot, enabling users to identify companies led by top founders with improved accuracy and responsiveness.

Optimized MongoDB schema design to enhance data retrieval speed and reliability for award and founder information, supporting real-time application needs.

Developed multi-tier web applications using Java 8, J2EE, JSP, JDBC, Servlets, HTML5, AngularJS, and Spring Boot within Eclipse IDE, delivering robust and maintainable solutions.

Delivered new features iteratively through Spring MVC and React components, adhering to Agile methodologies to maintain high-quality code and rapid deployment.

Modeled complex data structures with POJOs and Hibernate ORM, ensuring seamless object-relational mapping and persistent data management.

Collaborated closely with product owners and developers to define clear API contracts and feature requirements, maintaining clean, testable codebases.

Developed asynchronous microservices integrating multiple master data sources and third-party systems via SOAP and RESTful APIs, enhancing system interoperability and scalability.

Environment: Java 8, J2EE, Spring Boot, Spring MVC, Hibernate, RESTful APIs, SOAP APIs, ReactJS, AngularJS, JSP, JDBC, Servlets, HTML5, MongoDB, MongoDB schema design, Eclipse IDE, POJOs, Agile methodologies, SOAP, REST, Microservices.

Education:

M.S in Information Technology – Arizona State University, Tempe, AZ Jan 2023 – Dec 2024

GPA: 4.0/4.0

Course: Middleware Programming, Advanced Database Management Systems, Cloud Architecture, Cloud Security and Ops, Data Visualization, Analyzing Big Data, Principles of Computer & Info Tech Arch, Distributed Systems, Multithreading.

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