$ whoami

Ryan Petris

[ Senior Principal Software Engineer ]

17 years building developer tools, CI/CD pipelines, and cloud platforms. Own architecture for NCR Voyix's internal developer platform, used by hundreds of engineers, and built Go services for certificate management and remote command execution. Led a team of about twenty engineers operating a platform that handled hundreds of thousands of transactions a day for nearly three years.

github.com/ryanpetris linkedin.com/in/ryanpetris

Phoenix, AZ

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01 / 03

career

Experience

8 roles · 2009 → present

Senior Principal Software Engineer

NCR Voyix Corporation, Platform Engineering

Sep 2024 – Present
  • Lead architecture and a multi-year API-first transition for an internal developer platform used by hundreds of engineers for deployment tracking, release promotion, rollbacks, and approvals.
  • Set priorities for internal tools with fellow team leads, using design proposals and prototypes to evaluate technical approaches.
  • Proposed and built a Go remote command service with a REST API, Temporal workflows, signed messages, and tenant access controls. Integrated it with existing applications and brought it into production after testing with certificate and resource discovery workflows.
  • Built a production certificate management platform with Venafi and ACME for issuance, Temporal for workflows, and a React UI in the developer platform. Automated certificate discovery across GCP, Azure, and Venafi.
  • Wrote the framework and first resource for a custom AppDynamics Terraform provider, which another engineer later extended to more resource types.
  • Prepared an undocumented application for an eight-figure acquisition by reconstructing its environment, updating CI/CD and dependencies, and documenting service communication.
  • Led post-incident reviews and root cause analysis and provided escalation support for production services. Explained architecture and infrastructure decisions to executives and non-technical audiences during incident reviews and acquisition preparation.
  • Go
  • Python
  • TypeScript
  • Temporal
  • GitHub Actions
  • Kubernetes
  • Flux
  • Helm

Senior Software Engineer

Omnissa, formerly VMware and Broadcom

Jul 2023 – Sep 2024
  • Built an event-driven indexing service in Go, Kafka, and OpenSearch to improve search in the Workspace ONE endpoint management platform.
  • Caught data translation bugs before production by building a tool to compare synchronized records between systems.
  • Reviewed service designs for security and reliability and mentored engineers on Go.
  • Diagnosed production and QA bugs with other teams and fixed application build problems across the organization.
  • Go
  • Kafka
  • OpenSearch
  • C#
  • .NET
  • Angular

Senior Software Engineer

Meta Platforms, Inc.

Mar 2022 – Jun 2023
  • Improved build reliability and reduced schema data transfer for Meta's Bloks framework, which delivers application logic across Facebook, Instagram, and WhatsApp.
  • Organized a hackathon that documented hundreds of Bloks scripting functions, then built a Python tool to keep source documentation in sync with the developer wiki.
  • Integrated Bloks with Meta's A/B testing framework, coordinating the required changes with the testing team.
  • Wrote RFCs to gather feedback on framework changes and maintained Bloks build scripts and schema migrations.
  • Python
  • Hack/PHP
  • React

Software Architect

NCR Corporation

Jul 2019 – Mar 2022
  • Led about twenty engineers running NCR's business services platform, including production support and on-call.
  • Built reusable Terraform modules and Python and Bash tools to standardize deployments across dozens of teams.
  • Led architecture and engineering work on the platform's migration from AWS to GCP.
  • Built production-readiness checks from code scans and monitors, and chaos tests of application failure response.
  • AWS → GCP
  • Terraform
  • Python
  • Chaos testing

Technical Lead, Developer Experience

NCR Corporation

Jul 2018 – Jul 2019
  • Replaced Jenkins with Google Cloud Build and Harness for NCR's API portal, cutting build and deployment times.
  • Led development of a .NET Core and Angular API portal used by thousands of developers. Set architecture and coding standards and mentored engineers.
  • Moved the platform to Google Kubernetes Engine using Helm, blue/green releases, and post-deployment acceptance tests.
  • .NET Core
  • Angular
  • GKE
  • Helm

Senior Software Engineer, Developer Experience

Tin Roof Software, contractor for NCR Corporation

Dec 2017 – Jul 2018
  • Moved NCR's developer portal applications from Windows and IIS to Linux containers.
  • Linux
  • Containers

Application Architect

TalentQuest

Feb 2015 – Dec 2017
  • Set technical direction for six US and India teams building HR software for hundreds of organizations. Introduced design reviews with engineering, QA, and business stakeholders.
  • Migrated TFS repositories to Git with full history and trained engineers on the new workflow.
  • Git
  • Design reviews

Implementation Team Lead

Rev.io, formerly Overgroup Consulting

Aug 2009 – Feb 2015
  • Rewrote the telecom commission engine to process nine hundred thousand line items in under an hour, down from more than a day.
  • Telecom

education

M.S. Computer Science / Software Engineering University of West Florida 2015
B.S. Computer Information Systems University of West Florida 2010
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technical

Skills

33 nodes · 5 clusters

01 Languages 7

  • Go
  • Python
  • Bash
  • C#
  • TypeScript
  • JavaScript
  • SQL

02 CI/CD 6

  • GitHub Actions
  • Jenkins
  • Google Cloud Build
  • Harness
  • Git
  • GitOps

03 Infrastructure 9

  • Kubernetes
  • Docker
  • Terraform
  • Helm
  • Flux
  • Linux
  • GCP
  • AWS
  • Azure

04 Services 7

  • REST APIs
  • Temporal
  • Kafka
  • Google Pub/Sub
  • PostgreSQL
  • SQL Server
  • Redis

05 Security 4

  • OAuth2
  • JWT
  • Fine-grained authorization
  • Command signing
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open source

Projects

13 repos · 2 upstream patches
01

Toby

Runs AI coding agents in Linux sandboxes using OCI images and Bubblewrap, with private homes and controlled access to host Git and MCP services.

Go github.com/ryanpetris/toby
02

psbox

Linux sandbox for applications with private home directories, desktop integration, and systemd-managed process lifecycles.

Go github.com/ryanpetris/psbox
03

Elsewhere

Headless Wayland compositor whose screen is a browser tab, GPU-composited and hardware-encoded over a WebSocket.

Rust github.com/ryanpetris/elsewhere
04

Innkeeper

Manages Elsewhere desktop sessions in Docker with persistent storage and role-based access: pick Arch or Debian, add packages, and open a ready desktop in a new tab.

Rust github.com/ryanpetris/elsewhere-innkeeper
05

Bartizan

SSH terminals and remote browsing in a TypeScript/Electron app, routing browser traffic and DNS through SSH. Linux packaging and smoke tests are automated with GitHub Actions.

TypeScript github.com/ryanpetris/bartizan
06

Nessa

Decentralized WireGuard mesh VPN for trusted machines using Syncthing-style peer discovery and userspace WireGuard.

Go github.com/ryanpetris/nessa
07

DNS-Sync

Syncs DNS records between standard RFC 1035 zone files and DNS providers, or directly between providers.

Python github.com/ryanpetris/DNS-Sync
08

Ham DB

API for looking up amateur radio licenses, synced daily with the FCC and Canadian ISED databases, along with DMR and NXDN IDs.

Python github.com/ryanpetris/ham-db
09

AUR Builder

Automation tool to track and build AUR packages for Arch Linux.

Go github.com/ryanpetris/aur-builder
10

IOT Director

Talks to Arduino devices to collect sensor data and control relays; interfaces with MQTT and HomeAssistant for home automation.

C# github.com/ryanpetris/IOT-Director
11

HdhrProxy

Proxies requests to legacy SiliconDust HDHomeRun devices, enabling channel scanning without relying on SiliconDust's online services.

C# github.com/ryanpetris/HdhrProxy
12

IgnoreFS

FUSE filesystem that acts as a bind mount with .gitignore-style file exclusion support.

Python github.com/ryanpetris/ignorefs
13

Disposamail

Self-hosted disposable email address service with both an internal SMTP server mode and an external relay mode.

NodeJS github.com/ryanpetris/disposamail

Upstream contributions

Tailscale Go

Fixed an obscure bug causing DNS to be lost under certain Linux network configurations.

merged
Jellyfin C#

Fixed the legacy SiliconDust HDHomeRun live TV implementation.

merged