Sivasankaran Kaleeswaran

About Sivasankaran Kaleeswaran

I\'m a full-stack engineer passionate about building scalable, cloud-native applications that solve real-world problems. With over 5 years of hands-on experience, I’ve designed and delivered enterprise solutions using Java, Spring Boot, React, Node.js, and cloud platforms like AWS, Azure, and GCP. I specialize in developing secure microservices architectures and intuitive frontends that power high-performance systems. From optimizing backend workflows with Kafka, MongoDB, and Redis, to building responsive SPAs with React, Next.js, and Redux, I strive to create seamless end-to-end experiences. My journey spans containerization with Docker, orchestration using Kubernetes (AKS/GKE/OpenShift), infrastructure-as-code with Terraform and CloudFormation, and automation of CI/CD pipelines using Jenkins, Azure DevOps, and Google Cloud Build. I\'ve also improved application reliability and observability using tools like New Relic, Azure Monitor, and Google Cloud Trace. In past roles, I’ve reduced deployment downtime, improved API response times through real-time data ingestion, enforced OAuth2/MFA-based security, and enabled multi-cloud scalability — all while actively mentoring junior developers and collaborating with cross-functional teams. I’m always exploring emerging tech and contributing to solutions that blend performance, security, and user impact. Let’s connect if you want to chat about scalable architectures, cloud strategies, or full-stack best practices.

Experience

1. Java Fullstack Developer

   USAA

   Jun 2024 — Present · San Antonio, TX, US

   Designed and developed scalable, secure backend systems using Java, Spring Boot, and microservices architecture. Deployed cloud-native applications on Azure Kubernetes Service (AKS) and OpenShift, integrating MongoDB, Redis, Kafka, and Elasticsearch to optimize performance and scalability- Implemented event-driven architectures and automated CI/CD pipelines with Azure DevOps and Google Cloud Build. Enhanced security using OAuth 2.0, RBAC, and Multi-Factor Authentication (MFA), ensuring compliance with regulatory standards like CCPA- Built intuitive frontends with React, Redux, and Next.js, integrating Apollo GraphQL for efficient data fetching. Improved SPA performance and user experience through advanced routing and state management- Monitored and improved system performance using New Relic, Azure Monitor, and Application Insights. Led Agile teams, conducted code reviews, and maintained high-quality deliverables with rigorous testing (Jest, SonarQube) and detailed technical documentation.

Education

• Pace University - Seidenberg School of Computer Science and Information Systems

  Master of Science - MS

  2023 — 2025

• Amrita Vishwa Vidyapeetham, Coimbatore

  BTech - Bachelor of Technology

  2015 — 2019