Kafka-Driven Java Microservices Engineer

CHANDAN RAJU

LinkedIn: https://www.linkedin.com/in/chandan-raju Phone: +1-619-***-**** Email: **********@*****.*** SUMMARY

Software Engineer with 6+ years of experience in high-availability distributed systems, Java microservices, and event-driven architecture with Kafka. Proven success delivering critical cost savings and launching enterprise features across global markets. SKILLS

Languages, Frameworks & Data: Java, JavaScript, Spring Boot, React, GWT, Apache Kafka, RabbitMQ, Azure Cosmos DB Cloud, Infra & DevOps: Microsoft Azure, Kubernetes, Docker, Jenkins, CI/CD, Kibana, Grafana Testing & Tools: JUnit, Mockito, Selenium, Postman, Git, Confluence, REST APIs, Agile, Scrum AI & Emerging Tech: GitHub Copilot, Cursor, Claude AI, RAG, LLM APIs, Model Context Protocol (MCP) EXPERIENCE

Software Engineer III WALMART Sunnyvale, California June 2022 - present

• Engineered core supply chain technology powering Walmart's post-purchase operations - the Fulfillment Management System (FMS), which handles the lifecycle of 1.3M orders per day for both domestic and international markets.

• Core Microservices Architecture: Maintained and extended 12 loosely coupled, RESTful Java microservices using Kafka for messaging and Azure Cosmos DB. Delivered multiple business features across the FMS ecosystem, working with complex business objects and Walmart's cloud-native platform (WCNP) configurations.

• International Market Expansion: Drove onboarding of 5+ Cross Border Trade (CBT) initiatives across Mexico and Canada; recognized by leadership and partners for delivery speed, technical impact, and cross-team collaboration.

• Critical Project Execution & Cost Savings: Co-led critical fulfillment initiatives delivering $33M in annualized savings

(Scheduled Sourcing Optimization) and $4.93M in projected FY27 savings (Drone Package Weight Calculation).

• AI-Driven Optimization: Utilized GitHub Copilot, Cursor, and Claude AI (Sonnet/Opus) to refactor legacy code and optimize regression test suites, cutting execution time by 40% and in-memory execution by 50%. Leveraged Wibey

(Walmart’s AI agent) to trace 'order-to-delivery' logic across distributed services and map complex supply chain flows.

• Infrastructure & DevOps: Deployed and maintained Kubernetes pods, managed production rollouts using feature flags, and built real-time monitoring/logging dashboards via Jenkins, Kibana, and Grafana.

• Incident Response: Led on-call root cause analysis and log debugging (Claude AI) to rapidly resolve production errors within SLA and maximize system reliability during high traffic events like Black Friday.

• Cross-Functional Delivery: Partnered across Product, Architecture, and QA teams to deliver production-grade solutions. Authored technical design documentation on Confluence and led engineering knowledge sharing sessions.

• AI Systems Agent: Built a RAG-based AI agent using LLM APIs and the Model Context Protocol (MCP) to consolidate 10+ internal APIs, enabling semantic search over GitHub codebases to trace cross-service dependencies and system flows. Software Engineer I ORACLE CERNER Malvern, Pennsylvania Feb 2019 - June 2022

• Full-Stack Engineering: Engineered enterprise web application (Soarian Financials & Core Financial Clearance) using Spring Boot, Java, React, and GWT to display patient eligibility data across Northwell Health's 1,000+ care locations.

• Data & Messaging: Integrated RabbitMQ for decoupled service communication and Liquibase for DB schema migrations.

• DevOps & Testing: Containerized services via Docker, orchestrated Kubernetes deployments, and built Jenkins CI/CD pipelines, increasing test coverage by 20%; developed test suites using Selenium, Postman, and JUnit/Mockito. Software Developer Co-op ARRIS San Diego, California May 2018 - Dec 2018

• Built Automated Audit App features using Java and Java Swing/HTML to parse video encoder data from database backups, giving support engineers 30% faster access to system metrics; managed build configs and unit tests via Ant and JUnit. EDUCATION

Master of Science in Computer Science San Diego State University, San Diego, CA Dec 2018 Bachelor of Engineering in Telecommunication BMS College of Engineering, Bangalore, India May 2016

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