Mike Schinkel
Senior Software Engineer specializing in Go, Kubernetes, and CI/CD
Work Experience
NewClarity Consulting, LLC
January 2007 – Present
Owner
Highlights
- Specializing in Go development with Kubernetes and automating CI/CD build systems
- 10+ clients over almost two decades
- Developed and released numerous open-source software projects
- Currently working on PrefsCTL for managing Apple user preferences
Five9
August 2024 – October 2024
Contract Go Software Engineer
Highlights
- Developed External DNS Provider in Go for Five9's internal proprietary DNS
- Developed CLI for interacting with Five9's internal proprietary DNS
- Developed tests for CLI and External DNS Provider
Technology Association of Georgia — Data Science SIG
November 2023 – March 2024
Database Engineer (Pro Bono)
Highlights
- Prepared TAG client's data to be analyzed by Data Science competition participants
- Worked with TAG's client to understand their business and desired outcomes
- Exported SaaS data from QuickBooks, Salesforce, event management solutions
- Wrote Go program to convert QuickBooks reports to CSV formats
- Imported and consolidated data into a single Sqlite database file
- Cleansed and related data to allow for accurate analysis
- Anonymized data, removing personally identifiable information (PII)
- Coordinated with contestants to understand to DB to allow them to compete
SingleStore
August 2022 – April 2023
Contract Go Software Engineer
Highlights
- Implemented real-time debugging of Kubernetes Operator using Go's Delve debugger
- Helped to maintain and evolve Kubernetes Operator for SingleStore
- Developed solution to audit Go app for packages with incompatible licenses
- Updated and streamlined build process for Kubernetes Operator
HPE
August 2021 – August 2022
Contract DevOps & Go Software Engineer
Highlights
- Worked on HTTP client & server in Go for CentOS-based gateway and Windows Server-based client for the collection of machine status and SQL Server perf metrics
- Built Jenkins jobs using Bash and Groovy to create CentOS-based RPMs and Ubuntu-based ISOs and OVAs
- Automated deployment to Frog Artifactory using vCenter vSphere CLI running on VMware VM
- Created Windows Server 2019 VM w/Packer for dev & test of Go-based Windows agents running locally on macOS, and wrote Packer plugin in Go
- Implemented automated build and evaluate process for VMware OVA running Ubuntu on VM in vCenter triggered locally or GitHub Actions on:push
- Implemented process orchestration for product build process of Ubuntu ISO then OVA for use in VMware/vSphere/vCenter
- Implemented upload to jFrog Artifactory and push to Amazon AWS S3 for ultimate download by customers managed via GitHub Actions
LinkedIn Learning
August 2021 – September 2021
Contract Skills Assessment Test Author
Highlights
- Worked with the team from LinkedIn Learning and two (2) other authors
- Collaborated on the scope and outline for Go skills assessment test
- Authored 50 Go skill-related questions
- Coordinated with reviewers to make requested changes
Resideo Technologies for FrontSide
February 2021 – May 2021
Contract Go Software Engineer
Highlights
- Developed pattern for client to use for Go-based microservices
- Developed CLI to support a Node JS-based Backstage developer portal implementation focusing on testability
- Used the Echo web framework w/OpenAPI code gen for microservice scaffolding.
- Implemented GitOps w/change management via Github Pull Requests to control jobs for a Jenkins build system
- Developed Go-based MitM proxy as a test double for GitHub API
- Integrated Node JS-based Mountebank for additional API testing
- Diagnosed, remediated and submitted PR for Mountebank's no support of HTTPS CONNECT
- Implemented pattern for BDD-based testing using Ginkgo and GoMega
- Developed techniques to validate duplicated string literals throughout a test suite
Various
– July 2022
Prior non-Go/Kubernetes/CI-CD related roles
Highlights
- Led development teams for clients
- Developed solutions for clients in a variety of programming languages
- Hosted various Meetups for both Entrepreneurs and software developers
- Founded and grew a startup to #123 on Inc 500 within five years
- Trained programmers professionally for several years
- ASK if you need more details about these
Volunteer
Volunteer
Participating in various working group to help improve and promote the use of OpenAPI
Open Source Pull Requests
September 2013 – Present
Contributor
Active contributor to various open source projects, focusing on feature improvements and bug fixes
Highlights
- micromdm/plist — PR #46: Allow `*any` when using `UnmarshalPlist()` (accepted, 2025)
- sqlc-dev/sqlc — PR #123: Avoid generating empty Go imports statement (merged, 2024)
- vmware/govmomi — PR #2840: Fixed docs for govc library.info w/-json (merged, 2022)
- Plus over 100 more, 60 of which have been merged
Volunteer
Prepared source data for distribution to TAG-for-Good Data Science Competition
Projects
- PrefsCTL: CLI tool for managing macOS preferences in a YAML file like kubectl for Kubernetes manifests
- go-sofafeed: Golang package for fetching and parsing the JSON format Simple Organized Feed for Apple Software Updates hosted at sofa.macadmins.io
- README Merge: GitHub Action, Dockerfile, and CLI tool to allow merging child Markdown docs into one README.md
- SSOT: Single Source Of Truth CLI utility — Like envsubst, but in-place and with .yaml
- SaveTabs: Chrome extension paired with local HTTP server for save links along with their tab groups
- Bash Macros: GitHub Action, Dockerfile, and CLI tool to allow merging child Markdown docs into one README.md
- go-diffator: Diffator is a Go package to provide a difference string for comparing two Go values during testing.
- go-testdata-defaulter: Set table-driven test data defaults so that tables in tests only need include data that differs from defaults.
- go-typegen: Simple Golang generator package for test fixtures.
Contact
Atlanta, Georgia GA 30308 US
678-772-8446
Education
-
1998
Skills
Go
8 of 10
Kubernetes development
Goroutines & Channels
Microservices
CLI tools
Testing
aws-sdk-go
docker
oapi-codegen
kin-openapi
nethttp-middleware
sqlc
cobra
yaml.v3
SQL
9 of 10
DB development
3rd-normal form
Query parsing (in Go)
sqlc for Go
MySQL
Sqlite
Kubernetes
7 of 10
Extension development (Go)
Debugging
External DNS
kubectl
K3s
K3d
Virtual Machines
9 of 10
VMware
VirtualBox
Tart VM
Parallels
VMware
7 of 10
ESXi
esxcli
Fusion
Admin
vSphere API
Govc CLI
PowerCLI
Govmomi
ovftool
Docker
8 of 10
Docker Compose
Alpine Linux
Portainer
FROM..AS
WORKDIR
COPY
ARG
ENTRYPOINT
CI/CD
8 of 10
Infrastructure as Code (IaC)
Github Actions
Custom Runners
CircleCI
Gitlab Pipelines
Jenkins
Packer
8 of 10
Image building
Writing Plugins (in Go)
HashiCorp HCL
ISO
OVA/OVF
VMware
vSphere
VirtualBox
Linux
Windows
Github Actions
7 of 10
.github/workflow
Custom Runners
Matrix builds
Artifacts
Secrets
github.workflow
github.ref
push:
pull_request:
workflow_dispatch:
concurrency:
jobs:
steps:
uses:
on:
Git
9 of 10
Github
GitLab
GitOps
GitHub API
Linux
7 of 10
Server-related
Bash scripting
Debian
Ubuntu
Cent/OS
Alpine
visudo
nmcli
systemctl
journalctl
avahi
suduers.d
sshd_config.d
Shell Scripting
8 of 10
Bash
Linux
macOS
Amazon Web Services
6 of 10
IAM
S3
Route 53
Make
7 of 10
Makefile
Build processes
Task automation
.PHONY
jFrog Artifactory CLI
6 of 10
jf rt
Browser Extensions
7 of 10
Chrome
Microsoft Edge
Safari
manifest.json
Manifest v3
JavaScript
6 of 10
Alpine JS
jQuery
macOS JAX
macOS
9 of 10
terminal
ITerm2
Bash
defaults
Javascript for Automation (JAX)
Windows
6 of 10
Powershell scripting
ISO creation w/Packer
Virtual machines
Windows System Image Manager
autounattend
Powershell
6 of 10
Pester testing
Invoke-WebRequest
Invoke-RestMethod
Get-Content
ConvertFrom-Json
Set-Service
Install-WindowsFeature
New-LocalUser
Add-LocalGroupMember
$PSVersionTable
$Password
$Env