02
Groupon
Senior Production Tools Engineer · Technical Lead, CI/CD
Technical lead for the CI/CD team. Owned vision, OKRs, scoping, prioritization, and cross-team alignment. Built the build and release infrastructure that the rest of Groupon engineering shipped through.
- Managed large-scale Jenkins build and packaging environment on Mesos and Marathon, delivering Continuous Integration as a service to the rest of engineering.
- Built pipeline-driven CI workflows with parallelized integration tests, static analysis, immutable Docker artifacts, and automatic deployment to UAT and Staging.
- End-to-end migration of 50+ legacy Node applications to Docker with zero user impact.
- Built a web-based Service Portal that aggregated Groupon's 500+ services into one self-updating dashboard, used by SRE, SOC, devs, and management.
- Implemented globally-redundant Artifactory across 3 data centers on 2 continents, with a 2-tier DR failover providing global availability during multi-DC downtime.
- Migrated on-premise GitHub Enterprise VCS to a private AWS VPC. Cross-functional, cross-team effort.
- Upgraded a legacy Ruby CMDB / central config service: cut update cycle time 97% to 30 seconds across 25,000+ hosts.
- Created CI metrics pipelines (MTTR, CTTS, JVM, canaries) shipping to ELK and Wavefront.
- Solved deep containerization edge cases involving NFS, caching, overlay filesystems, and ulimits.
- Championed Outside-in Testing, mentored junior devs across multiple years including international remote pairings.
Jenkins Docker AWS Ruby Java Artifactory GitHub Enterprise ELK Wavefront Mesos Marathon DC/OS