Looking for a job

Nagarjun Kalivarapu

@nagarjunkalivarapu

Message

I modernize enterprise banking systems into secure, cloud-native Java microservices.

Canada

Message

What I'm looking for

I'm looking to build and modernize secure, scalable cloud-native backend systems, particularly in enterprise and financial-services environments, while contributing to API integrations, distributed systems, data migration, and Agile delivery.

I've modernized enterprise applications at Tech Mahindra for AT&T, re-engineering legacy .NET services into scalable Java and Spring Boot microservices while preserving data integrity, security controls, and API contracts.

For The Bank of Nova Scotia, I built secure RESTful services and distributed integrations using Java, Spring Boot, Hibernate, JPA, Kafka, Azure, OAuth 2.0, JWT, Docker, and Kubernetes. I supported API gateways, observability, production reliability, and event-driven processing across enterprise systems.

Across 11+ years in banking and financial services, I've delivered Java/J2EE applications from design through production support. I also build Oracle-to-MongoDB migration utilities, resilient synchronization processes, and high-performance database solutions.

Experience

Work history, roles, and key accomplishments

Current

Java Backend Developer

Current

Tech Mahindra / AT&T

Aug 2025 - Present (1 year 1 month)

Led end-to-end technical analysis and solution design for enterprise modernization initiatives, re-engineering legacy .NET services as Spring Boot microservices and implementing data migration utilities from Oracle to MongoDB.

Spring Boot Microservices REST APIs Oracle MongoDB OAuth Batch Processing Data Migration

Full Stack Java Developer

Tech Mahindra / The Bank of Nova Scotia

Jul 2018 - Aug 2025 (7 years 1 month)

Designed and developed scalable RESTful services using Java, Spring Boot, and Hibernate, implementing OAuth 2.0, JWT, and API Gateway configurations for secure enterprise applications.

Java Spring Boot Hibernate JPA REST SOAP OAuth JWT Spring Security API Gateway Azure Docker Kubernetes Jenkins Maven Git Jira

Full Stack Developer

VRG Information

Apr 2018 - Jun 2018 (2 months)

Conducted requirements analysis, designed and implemented REST APIs, and developed custom Angular libraries for reusable UI components while managing builds with Maven/Gradle in IntelliJ IDEA.

Java Spring Boot REST Angular Maven Gradle IntelliJ IDEA HTML5 JavaScript jQuery Hibernate Microservices Jira

Software Developer

Prime KI

Nov 2013 - Mar 2018 (4 years 4 months)

Involved in analysis, design, and development using Agile (SCRUM), building front-end interfaces with HTML, CSS, AngularJS, and integrating JSF with Spring and MyBatis for enterprise applications.