Vaughn Nze
EXPERTISE
BIO
Experienced backend engineer with over 8 years of expertise in Java, Spring Boot, and cloud-native development on AWS. Proven track record designing scalable microservices, integrating with SQL and NoSQL databases, and implementing CI/CD pipelines. Skilled in troubleshooting production issues, mentoring teams, and collaborating across time zones. Passionate about delivering reliable software and continuously improving system performance.
WORK EXPERIENCE
Senior Software Engineer
Marriott International
January 2023 - May 2025
• Built cloud-native microservices using Java, Spring Boot, and AWS (Lambda, ECS, S3) to modernize legacy systems • Containerized services using Docker and orchestrated via Kubernetes on EKS • Partnered with product and infrastructure teams to ensure highly available, distributed systems • Designed and implemented event-driven systems using Kafka for real-time data flow • Championed chaos testing initiatives to simulate outages and improve system resilience • Mentored junior engineers and advocated for test-driven development and pair programming • Led efforts in observability, deploying dashboards and alerts via Dynatrace and Splunk • Architected scalable solutions integrating with external APIs and internal services
Senior Software Engineer
Oreilly Auto
May 2022 - January 2023
• Implemented real-time data synchronization using Debezium for Change Data Capture (CDC) across distributed systems, enhancing system reliability and data accuracy. • Developed scalable backend services using Kotlin and Spring Boot, following reactive programming principles for high-throughput data processing. • Built robust RESTful APIs and microservices, managing dependencies and build automation through Gradle. • Designed and developed rich, responsive user interfaces using Vaadin, improving usability for enterprise web applications. • Developed scalable backend services using Kotlin and Spring Boot, following reactive programming principles for high-throughput data processing. • Applied domain-driven design and SOLID principles to improve code maintainability, and wrote comprehensive unit and integration tests using JUnit and Mockito.
Senior Software Engineer
Meteorcomm
March 2016 - May 2022
• Designed backend systems for real-time transaction processing using Java and NoSQL • Implemented robust CI/CD pipelines using Jenkins and GitHub Actions • Collaborated in an Agile setting with product managers and business stakeholders to deliver incremental value • Built systems that ran in OpenShift and Linux-based infrastructure • Delivered cloud-based SaaS services supporting thousands of users • Designed and optimized relational database schemas (MySQL/PostgreSQL) and implemented objectrelational mapping solutions. Ensured data consistency and high performance, which supported an increase in user load from 100k to 500k monthly active users without degradation in service quality. • Participated in architecture design discussions and wrote technical design documents/RFCs for new microservices and features. Evaluated design choices against requirements and constraints, making critical technical decisions that balanced scalability, cost, and complexity. • Emphasized code quality by writing unit and integration tests for new features and setting up a continuous integration pipeline (Jenkins) for automated testing and deployment. This initiative reduced regression issues and accelerated release cycles. • Worked with front-end engineers to define API contracts and with product owners to clarify specs. Actively contributed in Agile ceremonies (daily stand-ups, sprint planning, retrospectives) and was noted for clear communication and effective teamwork. Assisted in onboarding new engineers and provided mentorship in best practices for clean code and object-oriented design.
EDUCATION
Masters
Imo State University, May 2019
Computer Science
CERTIFICATIONS
AWS Certified Solutions Architect
Amazon
Issued: 1/1/1970
PORTFOLIO PROJECTS
Inventory Management Systems
View ProjectVerified Backend Developer
6-8 years of experience
Preferred commitment: Full Time
Languages
Skills
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