John Mazzitelli
Principal Software Engineer at Red Hat, Inc.
Winslow Township, New Jersey, United States
Summary
🤩
Rockstar🎓
Top SchoolJohn Mazzitelli is a Principal Software Engineer with 18 years of experience building and operating large-scale management, monitoring, and cloud-native systems, currently focused on Kiali and Istio integrations at Red Hat. He combines deep server-side Java expertise with hands-on DevOps work—maintaining Kubernetes/OpenShift operator bundles and evolving Kiali addon manifests to keep observability tooling compatible across releases. His background spans low-level systems (C/C++, JNI), enterprise Java platforms (WildFly/EAP, JBoss ON/RHQ), and modern Go-based agents, giving him rare end-to-end insight from embedded agents to UI and backend services. A longtime contributor to open-source projects, he has shaped core functionality in Byteman and played a key role in operator lifecycle and addon packaging for Istio’s ecosystem. Colleagues benefit from his blend of technical leadership, customer-facing support experience, and a track record of implementing high-availability and provisioning features in production. Based in New Jersey, he brings practical architecture judgement forged by both field support and sustained product development.
18 years of coding experience
11 years of employment as a software developer
B.S.E.E. Electrical/Computer Engineering, B.S.E.E. Electrical/Computer Engineering at Rutgers University
Github Skills (40)
kubernetes10
appbundle10
docker10
package-management10
apidoc10
kubernetes-operator10
bundle10
dockers10
java10
rule-engine10
cicd10
javas10
openshift10
api10
helm10
Programming languages (12)
Github contributions (5)
istio/istio
Mar 2018 - Nov 2022
Connect, secure, control, and observe services.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:5 reviews, 52 commits, 68 PRs in 4 years 9 months
Contributions summary:John's primary focus within the Istio repository was on configuring and updating the Kiali addon. They consistently modified the `gen.sh` script used to generate the Kiali addon manifest, changing versions, and adapting to new Kiali server helm charts. Their contributions involved updating to newer Kiali versions, which involved changes to build and deployment configurations within Istio's addon infrastructure. These updates ensured Kiali's compatibility and integration with different Istio releases.
circuit-breakerenforce-policiesistioapi-managementmicroservice
redhat-openshift-ecosystem/community-operators-prod
Jul 2021 - Nov 2022
community-operators metadata backing OpenShift OperatorHub
Role in this project:DevOps Engineer
DevOps EngineerContributions:1 review, 25 commits, 56 PRs in 1 year 4 months
Contributions summary:John's contributions primarily involve updating Kiali operator bundles and introducing/modifying the ossmconsole operator. The commits reflect updates to Dockerfile configurations, specifically focusing on bundle versioning and channel assignments for the Kiali operator. The user also appears to have introduced the ossmconsole operator, establishing its base configuration.
openshiftoperatorcontainer-copkubernetesmetadata
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