Principal Engineer - Cloud-Native & Microservices

Vanajakshi Mukkara

Email: *************@*****.*** Phone: 732-***-**** LinkedIn

SUMMARY

Principal Engineer with 25+ years of experience designing scalable, cloud-native systems and modernizing legacy platforms— including 15 years at Oracle and 5 years at Goldman Sachs. Expert in Java/JEE, Kubernetes, Spring Boot, Spring Cloud, Spring Data JPA, Spring Security, Microservices, RESTful APIs, WebLogic, Terraform, and CI/CD automation. Proven success in cloud migration and enterprise integration, delivering robust middleware solutions aligned with business goals. Skilled in mentoring teams and driving DevOps maturity for sustainable, high-impact delivery.

SKILLS PROFILE

Programming & Scripting: Java, Python, Unix Shell Scripting

Cloud & Containers: Kubernetes, Docker, Oracle Kubernetes Engine (OKE), Azure Kubernetes Service (AKS), Oracle Cloud Infrastructure (OCI), Kind Cluster

Frameworks & APIs: Spring MVC, Spring Boot, Spring Data JPA, Spring Cloud, Spring Security, OAuth2, JWT, Microservices, RESTful APIs, Spring, Hibernate, JEE, JDBC, JMS, Web Services, Kafka

DevOps & CI/CD: Jenkins, Git, Perforce, Maven, Junit, Terraform, Helm

Networking & Monitoring: NGINX, Traefik, Istio Service Mesh, Prometheus, ELK Stack

AI & Machine Learning: OCI AI Services, Machine Learning Foundations, Spring AI

Databases: Oracle Database(PL/SQL), IBM DB2, Sybase

Operating Systems: Linux, Windows

Development Methodologies: Agile (Scrum), Waterfall

Leadership: Team Leadership, Mentorship, Cross-Functional Collaboration

PROFESSIONAL EXPERIENCE

Oracle – Principal Member of Technical Staff 10/2010 – 09/2025 WebLogic Kubernetes Operator (2019 – 2025)

Architected the validation strategy for cloud-native capabilities in the WebLogic Kubernetes Operator, including platform certification on AKS and OKE, ensuring production-grade reliability and driving a 30% uptick in adoption across regulated domains.

Designed and implemented RESTful APIs and microservices using Spring Boot, Spring Cloud Gateway, Spring Data JPA, Spring Security, and Kafka to validate integration workflows with JAX-RS web services deployed on WebLogic domains.

Executed customer migrations to Kubernetes by replicating production setups locally to troubleshoot complex issues. Collaborated with product owners, developers, and client stakeholders to ensure smooth transitions, resolve integration issues, and accelerate delivery.

Designed and implemented a modular JUnit 5 test framework using Kubernetes Java client APIs to validate domain provisioning, lifecycle orchestration, scaling, versioning, ingress configurations (NGINX, Traefik) and REST APIs, simulating real-world workloads and edge cases.

Streamlined CI workflows for integration testing using Jenkins, Maven, Git, and Terraform, validating WebLogic Kubernetes Operator functionality and reducing release cycles by 30% through early defect detection and repeatable test execution.

Mentored engineering teams on validation strategies and cloud-native practices, fostering a culture of test-driven development and accelerating delivery velocity by 20%.

WebLogic Server (2010 – 2025)

Architected and developed Java EE applications to validate messaging and transactional features in WebLogic Server (10.3.6–15.1.1), leveraging JMS, JTA, JDBC, Servlets, JSP, RESTful APIs, and AQJMS to ensure robust enterprise functionality.

Collaborated with cross-functional teams to align messaging specifications with business goals, mentoring peers and driving clarity across development and QA workflows.

Designed and executed functional test plans for WebLogic Messaging features—including Dynamic Clustered JMS, Service Migration, AQJMS, and Message Bridge—to verify correctness, failover behavior, and feature integrity across platform versions.

Applied and validated Oracle OpenRewrite recipes to automate Java EE application migration from WebLogic 14.1.2 to 15.1.1, reducing manual refactoring and accelerating upgrade timelines.

Oversaw nightly integration test reviews, triaging failures, coordinating fixes, and maintaining system stability across release cycles.

Goldman Sachs – Senior Consultant (Financial Industry) 10/2005 – 10/2010

Implemented the Client Data Integration Tool (CDIT), enabling retrieval of unique documents from millions of records within seconds, significantly improving data access speed.

Designed and automated Entity DIP and Jaguar applications, enhancing system integration and efficiency.

Coordinated migration of 8M documents and 4M statements from a legacy imaging system, ensuring data integrity and system modernization.

Mentored offshore teams and automated Credit Drill report generation, saving dozens of hours of manual effort weekly.

Early Career – Application Developer 2000 – 2005 BEA, Confluence Software, HP

Validated WebLogic 9.0 (Diablo) JDBC subsystem through load, stress, and availability testing, developing and executing JEE test cases and analyzing results.

Customized a Web Services Management product for Merrill Lynch, developing Confluent Agent and Agent Manager for WebLogic Workshop, and building a web-based UI, stored procedures, and Corda chart reports.

Designed and deployed an MVC-based framework and UI, developed database stored procedures, and tested the application for production readiness.

EDUCATION

Bachelor of Technology – Computer Science & Engineering

Sri Venkateswara University Tirupati, Andhra Pradesh, India 1999

CERTIFICATIONS

Oracle Cloud Infrastructure 2025 AI Foundations Associate, Oracle University

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