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I am a Senior Full Stack Java Developer with 9+ years of experience building scalable microservices, Kafka-based event systems, and enterprise applications across banking and retail domains. I specialize in Java, Spring Boot, and cloud-native deployments on AWS, Azure, and OpenShift, delivering robust RESTful services, data pipelines, and modern front-end interfaces. I enjoy modernizing legacy systems, integrating external platforms, and delivering production-grade solutions with strong design, test coverage, and security. I thrive in cross-functional teams, collaborating with product and operations to ensure reliable, scalable software and smooth client experiences, while leveraging AI-assisted development tools to speed boilerplate coding and keep critical business logic in sharp focus.…I am a Senior Full Stack Java Developer with 9+ years of experience building scalable microservices, Kafka-based event systems, and enterprise applications across banking and retail domains. I specialize in Java, Spring Boot, and cloud-native deployments on AWS, Azure, and OpenShift, delivering robust RESTful services, data pipelines, and modern front-end interfaces. I enjoy modernizing legacy systems, integrating external platforms, and delivering production-grade solutions with strong design, test coverage, and security. I thrive in cross-functional teams, collaborating with product and operations to ensure reliable, scalable software and smooth client experiences, while leveraging AI-assisted development tools to speed boilerplate coding and keep critical business logic in sharp focus.

Sannidher Baddam

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am a Senior Full Stack Java Developer with 9+ years of experience building scalable microservices, Kafka-based event systems, and enterprise applications across banking and retail domains. I specialize in Java, Spring Boot, and cloud-native deployments on AWS, Azure, and OpenShift, delivering robust RESTful services, data pipelines, and modern front-end interfaces. I enjoy modernizing legacy systems, integrating external platforms, and delivering production-grade solutions with strong design, test coverage, and security. I thrive in cross-functional teams, collaborating with product and operations to ensure reliable, scalable software and smooth client experiences, while leveraging AI-assisted development tools to speed boilerplate coding and keep critical business logic in sharp focus.…I am a Senior Full Stack Java Developer with 9+ years of experience building scalable microservices, Kafka-based event systems, and enterprise applications across banking and retail domains. I specialize in Java, Spring Boot, and cloud-native deployments on AWS, Azure, and OpenShift, delivering robust RESTful services, data pipelines, and modern front-end interfaces. I enjoy modernizing legacy systems, integrating external platforms, and delivering production-grade solutions with strong design, test coverage, and security. I thrive in cross-functional teams, collaborating with product and operations to ensure reliable, scalable software and smooth client experiences, while leveraging AI-assisted development tools to speed boilerplate coding and keep critical business logic in sharp focus.

Available to hire

I am a Senior Full Stack Java Developer with 9+ years of experience building scalable microservices, Kafka-based event systems, and enterprise applications across banking and retail domains. I specialize in Java, Spring Boot, and cloud-native deployments on AWS, Azure, and OpenShift, delivering robust RESTful services, data pipelines, and modern front-end interfaces.

I enjoy modernizing legacy systems, integrating external platforms, and delivering production-grade solutions with strong design, test coverage, and security. I thrive in cross-functional teams, collaborating with product and operations to ensure reliable, scalable software and smooth client experiences, while leveraging AI-assisted development tools to speed boilerplate coding and keep critical business logic in sharp focus.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Sr. Full Stack Java Developer Backend (Java / Spring Boot) at Fifth Third Bank

March 1, 2024 - Present

Designed and implemented Spring Boot microservices for collections workflows, processing loan, bankruptcy, and debt-related data for enterprise banking systems. Built and maintained RESTful APIs consumed by web applications, enforcing robust validation, exception handling, and auditing for secure financial processing. Developed data persistence layers using Hibernate/JPA and PostgreSQL, supporting high-volume batch ingestion and updates with optimized transactional queries.

Sr. Full Stack Java Developer Backend Development (Java / Spring Boot / Node.js) at Walmart

August 1, 2022 - January 31, 2024

Developed and maintained microservices and REST/GraphQL APIs using Java (Spring Boot) and Python to support pricing, catalog, and inventory services. Implemented Kafka consumers and producers using Java, Python, and NestJS-based services for automated real-time message processing, reducing manual operations and improving system throughput for order and event flows. Fixed Snyk security vulnerabilities and ensured compliance with security guidelines across Java, Python, and NestJS services exposed to internal and external clients. Used Hibernate/JPA to interact with MySQL and optimize transactional queries for high-traffic services, improving performance and data consistency. Improved API response times by 20–25% through query tuning, Spring Boot optimization, caching strategies, and Python-based processing enhancements.

Sr. Full Stack Java Developer at Silicon Valley Bank

March 1, 2021 - July 31, 2022

Developed Spring Boot microservices for banking workflows improving API reliability and reducing outages. Created Angular 11 screens with modular components, improving UI maintainability. Designed Elasticsearch indices and Kibana dashboards for operational intelligence, improving search performance and analytics visibility. Built Kafka-based asynchronous flows for event-driven processing, improving system scalability. Deployed microservices on AWS ECS using Docker, Terraform, and automated scripts, reducing release effort by 30%. Implemented unit and integration testing using JUnit and Mockito, improving code quality and reducing regression defects. Supported application deployment and release activities, troubleshooting environment issues and ensuring stable production rollouts.

Full Stack Java Developer at Hertz

January 1, 2020 - March 31, 2021

Built REST APIs and Spring Boot microservices for rental operations, improving internal workflow automation. Developed and maintained Spring Boot microservices for backend reservation and rental operations platform, supporting vehicle booking, availability, and order-flow processing. Designed and consumed Azure Service Bus messaging queues to enable reliable asynchronous communication. Delivered React.js dashboards for internal business teams, reducing dependency on legacy UI systems. Increased deployment reliability by 40% by automating release workflows using Azure App Service and AKS. Implemented extensive unit/integration test suites (JUnit, Mockito, Power Mockito), improving code coverage and reducing defects. Designed and optimized relational database interactions using MySQL and DB2, improving query performance and data consistency. Containerized applications using Docker to standardize environments and support consistent deployments across development and production.

Java Developer at Zensar Technologies

October 1, 2017 - November 30, 2019

Developed dynamic, customer-facing web applications using Core Java, JSP, Servlets, JavaScript, jQuery, and AJAX. Implemented SOA-based SOAP integrations using Java Web Services, WSDL, UDDI, and XML-based message exchange for enterprise clients. Built Hibernate-based DAOs with optimized HQL queries, improving database query performance by 30%. Designed and maintained MySQL/Oracle schema components including tables, triggers, stored procedures, functions, and views. Improved UI responsiveness and reduced load times by 35% through AJAX batching, minimized DOM operations, and optimized server-side Java logic. Worked with Azure cloud environments to deploy and support Java applications, assisting with hosting, configuration, and environment troubleshooting during cloud adoption initiatives.