Rohan Kayan

VMware is a leading provider of multi-cloud services for all apps, enabling digital innovation with enterprise control.

Key Projects:

• VMware on Cloud (VMC)
• Telco Cloud Automation (TCA)
• VMware NSX

Responsibilities:

• Designed and developed distributed and auto scalable, Kubernetes based micro-services, to serve Auditing and configuration requirements of thousands of components and customers
• Designed and developed Synthetic transactions based performance and quality test framework, with build in CICD pipeline integration
• Developed framework to detect >90% of performance issues before changes were deployed to Stage and Prod environment
• Architected and developed highly flexible and scalable reusable Conversion Service to take care of configuration of SDDC during monolithic to micro-service transformation
• Defined and developed blueprint for asynchronous and gRPC based scalable and reusable microservices development
• Improved messaging framework scale by increasing throughput 3x, by dynamic thread pool handling and custom rejection handling
• Developed framework to handle automatic changes rollout and rollback in SaaS environment
• Worked on security hardening on products and services
• Developed centralized log ingestion pipeline and indexing service
• Developed multiple real time monitoring dashboards and reports using Wavefront and Kibana
• Worked on multiple async messaging technology (Kafka, RabbitMQ) to parallelize complex computations for performance and scalability.
• Worked with business users and operations teams to understand business needs and address production questions
• Performed troubleshooting, diagnostics and analysis to uncover root issues. Reviewed code and debugged errors to improve performance

Skills Used : Java/J2EE, Go, Docker, Helm, AWS,Spring Boot, Postgres, MongoDb,Kubernetes, Wavefront, ELK stack, REST, gRPC, Kafka

Veritas Technologies is a leader in multi-cloud data management. Over 80,000 customers—including 95% of the Fortune 100—rely on Veritas to help ensure the protection, recoverability, and compliance of their data.

Key Projects:

• Veritas Resiliency Platform (VRP)
• Veritas AWS Cloud Native Data Gateway
• Veritas Infoscale Operations Manager (VIOM)
• Veritas NetBackup

Responsibilities :

• Designed and developed multiple features and workflows for Data Center management
• Designed and developed API framework for better user experience and throughput, improved response time by >40%
• Developed Cloud native service for Data replication from scratch using SQS and SNS
• Developed Machine learning based task outcome prediction model to predict running tasks outcome
• Developed and maintained multiple services for federated communication and command handling in multi sites deployment.
• Improved resiliency of services by developing message shoveling framework
• Developed mobile application to monitor and operation remotely deployed datacenter management products
• Worked on multiple customer deployments and "First24Hours" support
• Production deployment and production environment management.
• Trained and mentored junior developers and engineers, teaching skills in Java, Spring and working to improve overall team performance

Skills Used : Java/J2EE, Python, RabbitMQ,Graph DB, Cassandra, Web Services, ANT, Spring, JDBC, REST, HTML, JavaScript,PL/SQL, Eclipse, AWS, Azure