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๐Ÿ‘‹ Hi there! I'm Greg(ory) Horejsi

๐Ÿš€ Hands-On Technology Leader | Cloud Architect | DevOps Practitioner

๐Ÿง  About Me

I'm a passionate technology leader with over 20 years of experience, evolving from a curious coder to CTO of Infrastructure. My journey has taken me through the realms of cloud platforms, containerization, and DevOps practices. I thrive on leading radical teams, orchestrating large-scale migrations, and scaling systems to support millions of users. Child of the 90's, I've been a tinkerer and builder all my life.

๐ŸŒŸ My Superpower: Working with and building teams that deliver the impossible at the edge of technology, using the latest tools and techniques to push the boundaries of what is possible.


๐Ÿ› ๏ธ Tech Stack

๐Ÿ’ป Languages

Python Rust Go Node.js C#

โ˜๏ธ Cloud Platforms

AWS GCP

๐Ÿ—๏ธ Infrastructure as Code

Terraform Pulumi Ansible

๐Ÿณ Containerization & Orchestration

Kubernetes Docker Helm Kustomize

๐Ÿš€ DevOps & CI/CD

GitLab GitHub FluxCD CircleCI Jenkins

๐Ÿ—„๏ธ Databases

PostgreSQL MySQL MongoDB Redis Neo4j

๐Ÿ”— Blockchain & Web3

Ethereum Avalanche Solidity OpenZeppelin Hardhat Foundry Hyperledger

๐Ÿ•ต๏ธ Monitoring & Security

Datadog Sentry Snyk Okta Auth0


๐Ÿ† Career Highlights

  1. Director Devops @ Allora Labs (2024 - Present)

    • Leading a small team of 3 engineers to build revamp and unify deployment pipelines to support ML and application delivery
    • Engineered Terraform and Ansible automation reducing cloud infrastructure drift across multiple providers
    • Reduced AWS infrastructure spend by 30% through right-sizing, deprecation efforts and general hygeine
    • Developed JavaScript based GitHub Action increasing deployment pipeline velocity by 99% while ensuring future scalability
    • Collaborated with stakeholders to architect infrastructure requirements supporting 10x growth projections
    • Implemented Cloudflare based security perimeter reducing overall security surface area by 40% while maintaining operational velocity
    • Designing CosmosSDK based management processes with target of automating 80% of on-chain operational activities
  2. CTO of Infrastructure & Developer Enablement @ Gala Games (2022 - 2024)

    • Led shift to proactive infrastructure and more mature security practices
    • Architected a paradigm shift from pets to cattle ๐Ÿฎ based deployment and infrastructure workflows
    • Matured infrastructure support from "fire-fighting" to more SRE-oriented methodologies, reducing MTTR through observability and automation
    • Rolled out infrastructure support all aspects of Gala's platform, supporting millions of DAU
  3. Director of Cloud Operations @ Qwinix (2019 - 2021)

    • Spearheaded transition from AWS to GCP cloud services provider
    • Built up a multi-national ๐ŸŒ cloud engineering team across 3 continents
    • Achieved full GCP certification suite, including beta the DevOps certification
  4. Lead Cloud Engineer | Director of Cloud Operations @ Kasasa (2016 - 2019)

    • Led transformation from legacy infrastructure to modern cloud architecture ๐Ÿ—บ๏ธ
    • Implemented Kubernetes using KOPS and integrated AWS cloud services
  5. Software Engineer | DevOps Practice Architect @ Golden Frog (2013 - 2016)

    • Developed Windows Desktop VyprVPN product
    • Designed and implemented multi-datacenter metrics and logging aggregation platform using ELK ๐ŸฆŒ and OpenTSDB

...


๐ŸŽจ Side Projects

  1. Discord-based Adventure Game (2024 - Present)

    • AI-led cyberpunk adventure using LLAMA for dynamic storytelling
    • Rust-based microservice backend with Discord bot functionality
  2. RetroVision Gamiverse (2021 - 2022)

    • Computer-sharing marketplace for game hosting with NFT integration
    • Developed Solidity smart contracts and designed tokenomics
  3. Many other side projects (Always learning something new!)

    • Arduino and Raspberry Pi projects for varying IOT and other projects
    • 3D printing and design using TinkerCAD and OnShape
    • Adventures in Unity and Godot game development
    • Miscellaneous Python and Rust projects for fun and profit
    • OLLAMA and other LLM experimentation

๐Ÿ… Awards & Certifications

  • Full GCP certification suite, including beta DevOps certification (2020-2021)
  • AWS Certifications up to Professional level (2017-2018)
  • Letter of Recognition from Kasasa for exemplary performance in AWS migration (2017)
  • Letter of Appreciation from Golden Frog for contributions to VyprVPN product (2015)

๐Ÿ“ซ Let's Connect!

LinkedIn Telegram Discord Email Blog


โšก Fun fact: I once designed a pre-802.11 Breezecom wireless network spanning 3 buildings over 2 miles that saved a company $6,000/month in ISP fees! ๐Ÿ’ก (circa 2001)


๐Ÿ“š Remember: "The only way to do great work is to love what you do." - Steve Jobs