Venkata Ramana Rasannagari

Seasoned Enterprise Architect & Senior Technical Lead – Marine Port Domain | End-to-End Product Design & Development | Polyglot Stack Migration | Microservice Architecture | Multi-Cloud & Multi-Tenancy | Azure & AWS

Versatile and accomplished Enterprise Architect and Senior Technical Lead with a proven track record in delivering large-scale, mission-critical solutions for the Marine Port domain. Specialized in modernizing legacy systems into scalable, cloud-native platforms using a polyglot microservices architecture, with robust support for multi-cloud deployment (Azure & AWS) and multi-tenancy models.

• Spearheaded the end-to-end product design and development of next-gen marine port logistics and terminal operations systems.
• Executed seamless migration from monolith to microservices, leveraging a polyglot tech stack (Java, Spring Boot, Python, Node.js, Kafka, MongoDB, Redis).
• Designed and implemented multi-cloud deployment strategies across Azure and AWS, enabling high availability, disaster recovery, and cost optimization.
• Engineered a secure and scalable multi-tenant architecture, supporting isolated tenant data, configuration, and resource management across various port authorities.
• Orchestrated containerized services using Kubernetes (AKS/EKS) with DevOps pipelines (Azure DevOps, GitHub Actions, Terraform) for continuous delivery.
• Enabled real-time data streaming and analytics using Azure Event Hubs, AWS Kinesis, and Kafka, improving port throughput and operational visibility.
• Integrated enterprise-grade identity management (Azure AD, IAM), API security (OAuth2, API Gateway), and observability (ELK Stack, Azure Monitor).

Seasoned Enterprise Architect & Senior Technical Lead – Banking Domain | Application Migration | Microservice Architecture | Cloud (Azure)

Results-oriented Enterprise Architect and Senior Technical Lead with deep expertise in the Banking sector, specializing in modernizing legacy Oracle Applications through strategic migrations to Microservice Architecture (MSA) using Spring Boot. Proven experience delivering end-to-end cloud-native solutions, with a strong focus on Azure Cloud deployment, scalability, and security.

• Led the complete migration of enterprise banking applications from Oracle Apps to a modern microservices-based architecture.
• Designed and implemented Spring Boot–based microservices, enabling modular, maintainable, and loosely coupled systems aligned with banking compliance standards.
• Orchestrated seamless migration to Azure Cloud, leveraging cloud-native services, CI/CD pipelines, and infrastructure-as-code.
• Ensured secure architecture using OAuth2, RBAC, API Gateway patterns and enterprise-level observability with Azure Monitor, Log Analytics, and ELK Stack.
• Enabled high availability and fault tolerance using Kubernetes, Azure Kubernetes Service (AKS), and Azure App Services.
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Seasoned Enterprise Architect & Senior Technical Lead – Healthcare Domain | Migration Applications | Microservice Architecture

Experienced Enterprise Architect and Senior Technical Lead specializing in the Healthcare domain, leading complex application migration projects with modern Microservice Architecture. Skilled in designing scalable, secure, and maintainable systems that modernize legacy healthcare applications and improve interoperability.

• Leading end-to-end migration of monolithic healthcare applications to microservices, ensuring minimal disruption and data integrity.
• Expertise in healthcare standards (HL7, FHIR) and compliance requirements (HIPAA).
• Designing cloud-native, containerized microservices with technologies like Spring Boot, Docker, Kubernetes, and API gateways.
• Strong leadership in cross-functional teams, guiding architecture decisions, coding standards, and best practices.
• Experience in integrating healthcare systems with secure authentication and authorization mechanisms.

• Solution and Integration Architect specializing in CISCO and Emerson B2B and B2C application architecture.

Architecture Design: Lead the design of scalable, secure, and compliant software architectures that meet healthcare industry requirements. Define architectural blueprints and best practices for cloud-native applications, microservices, and APIs.

API Design and Development: Design, implement, and manage RESTful and GraphQL APIs, ensuring they are secure, scalable, and compliant with healthcare data standards (e.g., HL7, FHIR). Establish API best practices and standards for the development team.

Cloud Architecture (AWS): Architect, implement, and manage cloud solutions on AWS, leveraging services like EC2, S3, RDS, Lambda, API Gateway, and more, with a focus on healthcare applications. Ensure optimal performance, cost efficiency, and security in cloud deployments.

Seasoned Enterprise Architect and Senior Technical Lead with over 15 years of experience architecting, designing, and delivering Standalone, Web, and Enterprise applications using Java/J2EE technologies. Specialized in microservices architecture, cloud-native applications, and DevOps-driven delivery with strong expertise in containerization and CI/CD automation.

• Java/J2EE Technologies: Extensive hands-on with J2SE, EJB (2.0+), JMS, Servlets, JSP, Struts, JSF, Spring Framework (4+), Spring Boot, Hibernate, iBatis, MyBatis, Wicket.
• Enterprise Integration & SOA: Proficient in SOA, Web Services (SOAP, REST, WSDL, UDDI), XML technologies (JAXB/JAXP, XML-RPC), WS-Security, and Mule ESB/EAI solutions.
• Microservices & Cloud: 6+ years delivering microservice-based solutions using Spring Boot, Docker, Kubernetes, and platforms including AWS, Azure, Google Cloud, and Pivotal Cloud Foundry.
• Security & Identity Management: Deep understanding and implementation of Authentication, Authorization (RBAC), OAuth, OpenID Connect, SAML, and enterprise-grade secure infrastructure design.
• DevOps & Automation: Skilled in Jenkins, TeamCity, ELK stack (Elasticsearch, Logstash, Kibana), Nagios, Git/GitHub, SVN, Maven, Gradle, and container orchestration with Docker/OpenShift.
• Performance & Scalability: Experience with performance profiling tools (JMeter, JProfiler, jmap, jstack), and NoSQL databases including CouchDB, Cassandra, MongoDB.
• Messaging & Streaming: Expertise in Apache Kafka, JMS, Apache Camel, Apache CXF, Karaf, and JBoss Fuse for integration and event-driven microservices.
• Development Methodologies: Adept in Agile and Scrum frameworks, with excellent communication skills to interface between technical teams and business stakeholders.
• Reporting & Search Technologies: Hands-on with Crystal Reports, JasperReports, Lucene, Elasticsearch, and Kibana for log analytics and search solutions.

Banking, Healthcare, Insurance, ADA, UPRR, LTA, Optus, with multiple onsite assignments including China and other international locations.

Led development lifecycle for complex e-commerce and business applications.

Architected and implemented MVC frameworks using Struts and JSF alongside EJB for backend logic.

• Leveraged ORM tools like Hibernate and JPA to optimize database interactions.
• Designed XML schemas (XSD) for robust data interchange and validation across systems.
• Created complex XSDs to define structured data, enforcing integrity and business rules.

Developed industry-standard XML documents for seamless external system integration.

• Executed XML parsing, transformation (XSLT), and validation in Java/J2EE applications.

Versatile Software Senior Technical Lead – J2EE | Security & Healthcare Domains | Onsite Experience in China

Seasoned Senior Technical Lead with extensive experience leading development teams and architecting enterprise-grade applications in the J2EE technology stack. Proven track record of delivering complex projects in the Security and Healthcare (NHG) domains, including significant onsite client engagement in China.

• Leading cross-functional teams through the full software development lifecycle (SDLC) with strong emphasis on architecture, coding standards, and best practices.
• Expertise in Java EE frameworks including Struts, JSF, Spring Core, and ORM tools (Hibernate, JPA) for building scalable, maintainable applications.
• Driving secure application design by implementing RSA-based authentication, OAuth 2.0, and SAML protocols in line with industry compliance standards.
• Deep domain knowledge in healthcare IT with hands-on experience in HL7/FHIR standards and HIPAA regulatory requirements.
• Effective client communication and project coordination through onsite presence in China, ensuring alignment with business goals and timely delivery.

Delivered secure, high-performance banking applications for transaction processing and loan management.

Designed scalable backend systems utilizing Java, J2EE, Spring Framework, and RESTful APIs.

• Implemented secure financial workflows that comply with industry standards, including PCI-DSS and SOX.
• Leveraged enterprise integration techniques using JMS message queues and SOAP/REST web services.
• Engineered data processing pipelines to enhance operational efficiency in financial services.
• Optimized high-volume transactions through proficient use of Oracle, DB2, and SQL Server databases.
• Collaborated effectively with business stakeholders, leveraging strong understanding of banking operations.

• Led migration of legacy VB-based PPC modules to Java Swing, achieving feature parity and performance optimization.
• Re-engineered business logic and data handling layers to enhance maintainability and scalability.
• Collaborated with product owners and domain experts to translate business rules into Java architecture.
• Implemented Java Swing front-end components focused on usability, responsiveness, and data integrity.