Staff Software Engineer

• CNCF conformant Operator to deploy and manage NiFi clusters.

• Used within Data Flow Experience on Amazon AWS and Microsoft Azure, and available in Red Hat Operator Catalog.

• Increase team confidence and velocity by optimizing build and development process.

• On-call roation, and customer triage.

Software Engineer

• Self-hosted Kubernetes v1.16 migration to v1.22 to v1.23 AWS Hosted EKS through workload movement.

• Executing pre-planned initiatives while maintaining and enhancing the stability of the kubernetes clusters as part of an oncall rotation.

• Mentor team members and push for documentation and use of checklists to increase confidence in the infrastructure.

• Infrastructure managed by terraform, along with Golang and bash programs.

• Used systemd and podman to move to containerized services for Kubernetes control plane.

Kubernetes – SIG-Node

• Formed SIG-Node-CI group to raise quality of existing end-to-end Ginkgo tests

• Triaging and fix sig-node testing failures as they occur to increase velocity

• Deprecating and removing failing and superseded test suites to remove duplication and decrease use of expensive server time

• Increase visibility of critical test groups by centralizing to a single top-level dashboard

Hyperledger Fabric - Enterprise Permissioned Blockchain for Business

• Maintained a Golang EVM (Ethereum Virtual Machine) chaincode for fabric by guiding new committers through contribution process

• Implemented ethereum json-rpc 2.0 endpoints for Remix IDE to connect with Fabric network to manage and deploy EVM smart contracts

• Drive Fabric adoption by implementing Truffle compatibility resulting in Truffle Conference keynote

• Mentored LinuxFoundation Intern to create WebAssembly Chaincode for Fabric

• Improved code quality of Gossip Protocol by removing race-conditions to re-enable integration testing and community usage

• Increased Fabric unit testing speed to increase contributor velocity by targeting slowest tests

• Implemented Kubernetes and Docker backends for Blockhead Ethereum Service Broker and port from Ruby to Golang

Kubernetes – SIG-Service-Catalog

• Maintainer and founding community member of Service-Catalog an implementation of the OpenServiceBroker API (OSBAPI)

• Implemented OSBAPI to expose thousands of existing IBM CloudFoundry services to Kubernetes

• Collaborated with multiple cloud providers to adopt CloudFoundry service concept for cross-cloud compatibility

• Created CI pipeline in Travis and transitioned entire pipeline to CNCF infrastructure driven by Prow

• Implemented aggregrated APIServer (predating CRDs) for Kubernetes native object behavior

• Ensured multi-architecture compatibility by communicating with stakeholders of PowerPC and S390X

Maintainer of Docker/Moby Engine Core

• Maintainer of Docker ClassicSwarm (Docker-native cluster management predating Kubernetes)

• Decoupled the server side API from the engine leading to separate client and server binaries allowing efficient re-use of client code

• Increased code quality by performing corrective changes and enabling static analysis

Developer Advocate for Open Source

• Design & Execute Education on Cloud Native Technologies

  • Customizing content for internal and external audiences of both technical and nontechnical nature

  • Demonstrate value of containerization to improve application development, deployment, and scaling

  • Encourage contributions back to upstream projects

• Grow IBM Open Source committer base by 300 through mentorship and education on Applied use of Git with GitHub

• Decreased new contributor fatigue to Kubernetes communities with increased documentation on node-e2e-test and videos on YouTube

• Triaged community issues by performing fixes and writing documentation

Manager of Managers (Lenovo XClarity Cluster Management)

• Owned developer services, providing database access and issue tracking

• Administered secure source code repository and auditing with git, ssh, & gpg

• Built automation with maven, jenkins, & guestfish for an end to end pipeline - source code to deployable Virtual Machines

Manager of Managers (Lenovo XClarity Cluster Management)

• Project bring-up from first principles using maven, artifactory, jenkins

• RESTful API design and documentation with Restlet

• Componentized program with OSGi bundles and services

• Source control administration and education with RTC & git

• JUnit, EasyMock, Sonar for code quality at > 80% line and branch coverage

VMControl

• Drove unit testing among the team, and increased coverage from 0% to 26% on 200kloc

• Software Testing of Legacy Systems with JUnit, EasyMock, & PowerMock

• Java, Maven, SVN, & Python

• SVN To RTC Migration team handling education to users and consultation on appropriate code to move.

Data entry of grades into excel with manual processing to format for reports

Automated data entry and formatting in Excel using Visual Basic for Applications