Jerry Duffy
Senior Software Engineer at New Relic, Inc.
Lexington, Kentucky, United States
Summary
🤩
Rockstar🎓
Top SchoolJerry Duffy is a senior software engineer and systems architect with over 25 years of experience designing and implementing enterprise Java and JVM-based systems, currently driving backend work at New Relic. He brings deep expertise in Java EE, Spring Boot, Hibernate, messaging and testing frameworks, and has applied Ruby/Rails and Groovy across long-lived production systems. His recent open-source contributions to the New Relic Java agent include nuanced gRPC instrumentation and transaction propagation fixes, plus enhancements for Azure container detection and JFR toggling—work that improves observability in distributed environments. A proven leader across companies from Lexmark to Limelight and Akamai, he blends hands-on coding with architecture-level thinking and a knack for stabilizing complex systems. Based in Lexington, Kentucky, he pairs practical, test-driven development with a history of solving tricky cross-process tracing and error-handling challenges.
10 years of coding experience
17 years of employment as a software developer
Computer Science, Computer Science at University of Kentucky
Github Skills (4)
java10
grpc10
javas10
testing9
Programming languages (9)
Github contributions (5)
newrelic/newrelic-java-agent
Oct 2022 - Jan 2023
The New Relic Java agent
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 releases, 373 reviews, 26 commits in 3 months
Contributions summary:Jerry contributed to the New Relic Java agent, primarily focusing on the gRPC instrumentation and custom event logging. Their work involved linking tokens for transaction propagation, managing transaction finalization within gRPC streams, and refining the handling of attributes and error conditions. Additionally, the user enhanced the agent's capabilities by adding a test for Azure container ID and configuring the JFR toggle.
java-agentnewrelictelemetry-java
newrelic/newrelic-java-examples
Jul 2023 - May 2026
Examples illustrating usage of various New Relic Java APIs, SDKs, and libraries.
Contributions:2 reviews, 4 PRs, 6 pushes in 2 years 10 months
java-apinewrelicjava
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