Senior Java & Cloud Staff Engineer (GCP / AWS)

Vipen Koosu

*****.*****@*****.***, 773-***-****

Senior Java & Cloud Staff Engineer with 15+ years of hands-on experience designing and delivering enterprise-scale applications. Deep expertise in cloud-native architecture, microservices, and distributed systems on GCP and AWS, driving measurable improvements in performance, scalability, and cost efficiency. Proven track record of modernizing legacy systems, building robust CI/CD pipelines, and implementing event-driven solutions with Java, Spring Boot, and Kubernetes, while mentoring senior engineers and leading high-impact technical initiatives. Certifications:

● Google Cloud Certified – Professional Cloud Architect

● Google Cloud Certified – Associate Cloud Engineer

● Google Cloud Certified – Digital AI Leader

Core Competencies:

● Cloud-Native & Microservices Architecture

● Distributed Systems & Event-Driven Design (Kafka, Pub/Sub, IBM MQ)

● Languages: Java, Groovy, SQL, JavaScript, TypeScript

● Frameworks: Spring Boot, Spring Cloud, Spring Security, Spring Batch, Hibernate, JPA, Angular, React

● Cloud Platforms: GCP (GKE, Cloud Run, Cloud SQL, Pub/Sub), AWS (EKS, EC2, Lambda, S3, DynamoDB)

● Containers & Orchestration: Docker, Kubernetes, Helm

● Databases: PostgreSQL, MySQL, Oracle, SQL Server, MongoDB, DynamoDB, Firestore, BigQuery

● CI/CD & DevOps: GitHub Actions, Jenkins, Argo CD, Maven, Gradle

● API & Security: REST, OAuth2, Apigee, Cloudflare

● Testing & Performance Tools: JUnit, Spock (Groovy), Spring Cloud Contract, PACT, Cypress, Karate, K6

● Performance Engineering & JVM Tuning

● Technical Leadership & Mentorship

Professional Experience:

Genuine Parts Company - Senior Staff Engineer

Aug 2019 – Present Atlanta, GA

● Led the migration from monolithic WebSphere applications to cloud-native microservices on GCP, improving system scalability by 3, increasing resiliency, and reducing deployment times by ~70%.

● Designed and implemented domain-driven microservice architecture using Spring Boot, Cloud SQL, Pub/Sub, Docker, GKE, and Cloud Run, supporting high volume of transactions.

● Defined reference architectures and technical roadmaps, enabling parallel team execution and reducing cross-team dependencies.

● Built CI/CD pipelines using GitHub Actions and Argo CD, increasing release frequency from monthly to weekly and reducing production defects by ~30%.

● Implemented API governance and security using Apigee, OAuth2, and Cloudflare, achieving 99.9%+ API availability.

● Drove JVM tuning and performance optimization, reducing p95 latency by ~35% and lowering infrastructure costs by ~25%.

● Established automated testing strategy (unit, contract, integration, E2E), increasing test coverage to 80%+ and reducing regression defects by ~40%.

● Mentored senior and mid-level engineers through architecture reviews, code reviews, and design sessions, accelerating onboarding by ~30%.

● Designed and implemented data migration pipelines for one-time and incremental updates, including automated validation scripts to maintain data parity and integrity across multiple databases.

● Coordinated delivery across onshore and offshore teams, consistently meeting roadmap commitments. Environment:

Java, Spring Boot, GCP (GKE, Cloud Run, Cloud SQL, Pub/Sub, BigQuery, Composer), Docker, GitHub Actions, Argo CD, Angular, React, Cypress, Spock/Groovy, Apigee, Cloudflare, PostgreSQL, Splunk, WebSphere Sears Hometown & Outlet Stores — Sr Developer / Technical Lead June 2012 - July 2019 Chicago, IL

● Developed and maintained a high-transaction, user-friendly enterprise eCommerce public portal and integration systems using Java, J2EE, Spring, Hibernate, AWS, NetSuite, and related technologies.

● Built CI/CD pipelines and supported production systems, ensuring high availability and performance.

● Designed and Implemented search services using SOLR and third party services like BloomReach

● Implemented integrations with third-party eCommerce platforms such as Amazon and eBay, enabling seamless data exchange and improving order processing efficiency.

● Implemented integrations with last-mile and transportation providers such as JB Hunt, XPO and UPS, improving delivery visibility, tracking accuracy, and on-time fulfillment.

● Implemented custom integrations for NetSuite using SuiteCommerce scripts. Willis Insurance — Senior Engineer - Aug 2011 - May 2012 Chicago, IL CNA Insurance — Senior Engineer - Dec 2006 - Jul 2011 Chicago, IL

● Participated in full SDLC and implemented Java/J2EE enterprise applications, focusing on performance, reliability, and messaging systems.

● Developed APIs using insurance industry standards (ACORD), enabling seamless integration with insurance aggregators.

● Monitored applications and provided production support, triaging user-reported issues and delivering timely solutions.

Education

Master of Technology in Computer Science & Engineering,, India (2 year program) Bachelor of Technology in Electrical & Electronics Engineering,, India (4 year program)

Contact this candidate