Open to opportunities

Krishna Reddy Kalli

@krishnareddykalli

Message

Java Lead Developer building full-life-cycle microservices with Spring Boot and Kafka.

Zimbabwe

Message

What I'm looking for

I’m looking for a role where I can lead Java/Spring Boot microservices, Kafka-based event-driven systems, and cloud deployments—building reliable CI/CD with Docker and Kubernetes while partnering with security/compliance for secure, scalable production delivery.

I’m a Java Lead Developer with around 1 3 years of E xperience in IT, handling Analysis, Design, Development, Implementation, Testing, and ongoing maintenance across web-based and N-tier Architectures. I’ve delivered full life cycle (SDLC) work in Java/J2EE using Spring Boot, Java 17, REST/SOAP services, and enterprise application servers.

In my recent role, I spearheaded event-driven microservices with Kafka on Confluent Platform, architected Kafka Streams stateful pipelines, and integrated Debezium CDC into Kafka topics for real-time data availability. I also build and optimize cloud-native systems on AWS with RDS backups/PITR, implement CI/CD with Jenkins, Docker, and Kubernetes, and strengthen reliability using mTLS/OAuth2 security, resilience patterns, and strong unit/integration testing (JUnit/Mockito, 90%+ coverage).

Experience

Work history, roles, and key accomplishments

Current

Java Lead Developer

Current

UnitedHealth Group

May 2020 - Present (6 years 2 months)

Spearheaded design and development of event-driven Java microservices using Spring Boot and Apache Kafka for near real-time claims adjudication and member updates. Built and integrated Kafka-based pipelines (Kafka Streams, Schema Registry, Debezium CDC), enterprise REST APIs, and healthcare integrations using HL7 FHIR APIs.

Full Stack Java Developer

Walmart Labs

Oct 2018 - May 2020 (1 year 7 months)

Developed and migrated a cloud data foundation platform from monolithic to microservices using Java 17 and Spring Boot, integrating with AWS services and asynchronous messaging. Built Angular 18 front-end components, automated Kubernetes deployments with Jenkins/Argo CD/Helm, and supported REST/GraphQL APIs and resiliency patterns.

Spring Boot Microservices Angular RxJS NgRX Kubernetes Rancher Helm Argo CD Jenkins Docker AWS RDS PostgreSQL MySQL Kafka OAUTH2 JWT REST GraphQL Resilience4j Mockito Splunk Prometheus Grafana ArgoCD

Full Stack Java Developer

Volkswagen Group of America

Oct 2017 - Oct 2018 (1 year)

Contributed to design and development of connected car features, covering requirements, Agile/Scrum delivery, and testing through TDD. Implemented microservices with Spring Boot, REST and SOAP web services (JAX-RS/JAX-WS), and built front-end features with Angular and JavaScript.

Full Stack Java Developer

Mastercard

May 2017 - Oct 2017 (5 months)

Worked on enterprise security solutions using microservices with Spring Boot and REST-based services consumed by AngularJS views. Developed and supported features on JBoss-hosted applications, migrating modules from IBM MQ to Apache Kafka and building AWS-based application components.

Java 8 Spring Boot Microservices REST Spring MVC AngularJS CSS3 MongoDB MapReduce Hibernate Apache Kafka AWS EC2 S3 RDS DynamoDB SNS SQS IAM Kubernetes Oracle JBoss Maven Jenkins Log4j Git Jira React Native Redux

Java J2EE Developer

World Bank

Jan 2016 - Apr 2017 (1 year 3 months)

Developed and tested features for the Advisory Services Operational Portal (ASOP) using Scrum Agile methodology, including responsive single-page UI development with AngularJS. Deployed Spring Boot microservices in Docker on Amazon EC2, maintained AWS infrastructure, and built SOAP integrations with JAX-WS while supporting Hibernate persistence and data-refresh workflows.

Java Developer

Efftronics Systems Pvt Ltd

Mar 2014 - Aug 2015 (1 year 5 months)

Developed dynamic web interfaces and Java/Spring Boot microservices deployed on AWS EC2, including REST services consumed by the front end. Built data streaming and pipelines with Apache Kafka, optimized SQL performance using Spark-SQL Scala, and supported CI/CD and testing with Jenkins, Maven, Cucumber, and JUnit/Mockito.