Mathew Fleisch

Mathew Fleisch

Senior Infrastructure & DevOps Engineer from San Francisco

Infrastructure and DevOps engineer dedicated to building scalable abstractions, standardizing environments, and streamlining CI/CD pipelines at scale. I specialize in creating robust developer tooling and believe that solid testing and automation are the foundation for delivering secure, high-performance software.

View Resume

Experience

Senior Infrastructure Engineer @ Workday (PIE Team)

2023 - Present

Building scalable abstractions and standardized infrastructure for the Platform Infrastructure Engineering team, marking five years of total tenure at Workday across multiple specialized platform teams.

  • Created a custom MCP server for the team's infrastructure state, improving visibility and enabling AI-driven insights into complex deployments.
  • Developed an abstraction layer for Amazon EKS using Terraform and Cookiecutter to standardize configuration and environment setup.
  • Engineered cloud-native CI/CD pipelines using Tekton and Argo Workflows for infrastructure and custom API deployments across multiple Kubernetes clusters.
  • Created SOC-compliant release and change management automation processes.

Senior Infrastructure Engineer @ Workday (Scylla Team)

2021 - 2023

Maintained an automated platform for deploying the Workday stack on multi-cloud Kubernetes clusters.

  • Migrated legacy infrastructure from AWS to GCP to enable multi-cloud deployments.
  • Automated FedRAMP-compliant image update processes to ensure base images receive continuous security patches.
  • Managed custom Kubernetes operators for provisioning cloud resources like storage and databases.
  • Built cloud-agnostic end-to-end test suites to validate microservice functionality at scale.
  • Sysdig — Senior Infrastructure Engineer 2020 - 2021
  • Eaze — Senior Infrastructure Engineer 2018 - 2020
  • Apple — Full Stack Developer (Marketing / Finance) 2015 - 2018
  • Hitachi America — JavaScript Developer 2017
  • UBM — Back-End Developer 2011 - 2015
  • Buck Institute for Research on Aging — Staff Programmer 2009 - 2012

During my tenure at the Buck Institute, I co-authored research papers on bioinformatics and aging:

Skills

Cloud & Orchestration

Kubernetes AWS / GCP / Azure Terraform Helm ArgoCD EKS

CI / CD & Tooling

GitHub Actions Tekton Argo Workflows Jenkins Sysdig / Falco Prometheus

Languages

Go Python Bash JavaScript / Node PHP

Open Source

BashBot

An extensible Slack bot written in Go for executing bash commands via RTM. Used for ChatOps and triggering infrastructure workflows.

Go Slack API

AGIMUS

Standardized a monolithic Python Discord bot into an extensible library. Features a MySQL backend, CI/CD via GitHub Actions and KinD tests.

Python Kubernetes

asdf Plugins

Maintainer of numerous asdf-vm plugins (ArgoCD, AWS CLI, Tekton, etc.) ensuring ARM64 compatibility for local development on Raspberry Pi.

Bash DevOps Tooling

Advent of Code

Solutions for the annual Advent of Code programming challenges, primarily implemented in Bash to push the limits of shell scripting.

Bash Algorithms

BashBunny Payloads

Penetration testing payloads for the Hak5 BashBunny. Includes GitBunnyGit for managing device payloads and TwoStageMac for scripted exfiltration.

Bash Security

Badge Tetris

A Python port of Tetris for a DEF CON 26 third-party electronic badge, utilizing its LED matrix and accelerometer via serial connection.

Python IoT

Timelapse Pipeline

An automated pipeline for creating cinematic timelapses. Captures images via Raspberry Pi, stores them in S3, and processes them using FFmpeg in CircleCI.

Bash FFmpeg AWS

Morse Code Game

An Arduino-based interactive game that teaches Morse code. Features hardware input/output with real-time encoding and decoding logic.

C++ Arduino

Creative Works

Interactive: Column Sorting Game

See the Pen Column Sorting Game by Mathew Fleisch (@mathew-fleisch) on CodePen.

Where engineering meets art. Original music paired with cinematic timelapses.

Latest: 2026.01.01 Bay Bridge Rainbow

View more on my YouTube Channel.

Music on Spotify

Apple Bandcamp Instagram Draxiom.com Our Vinyl Vows