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Christian Haumesser, DevOps and Cloud Software Developer in Alameda, United States
Christian Haumesser

DevOps and Cloud Software Developer in Alameda, United States

Member since June 4, 2022
Christian is an experienced DevOps and cloud software engineer who enjoys collaboration, teamwork, and problem-solving. A strong Python and Go developer, a GCP Professional Cloud Architect, and a happy teammate, he is excited by opportunities to explore new businesses and technologies and bring the benefits of cloud computing to companies of all shapes and sizes.
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Portfolio

Experience

Location

Alameda, United States

Availability

Part-time

Preferred Environment

GitLab CI/CD, Kubernetes, Docker, Google Cloud Platform (GCP), Python, Go, TypeScript, Terraform, Prometheus, ELK (Elastic Stack)

The most amazing...

...thing I've completed is the cloud-native re-architecture from bare metal to Google Cloud Platform (GCP) in 18 months.

Employment

  • Director of Engineering

    2020 - 2021
    Public Library of Science
    • Led a team of 25 engineers and three additional engineering managers. Oversaw the cross-functional software engineering team's headcount, strategic staffing, and budget.
    • Completed cloud-native re-architecture from bare metal to Google Cloud Platform (GCP) in 18 months.
    • Reduced code maintenance burden by 60% and entirely eliminated data center hardware.
    Technologies: Agile Coaching, Cloud Architecture, Management, Coaching, Budgeting, Key Performance Indicators (KPIs), Software Engineering, Software Architecture, GitLab CI/CD

  • Senior Engineering Manager

    2019 - 2020
    Public Library of Science
    • Consolidated disparate DevOps and software engineering teams under common leadership and matrixed Agile squads.
    • Collaborated with engineering leaders to design transformational cloud architecture using GCP, Kubernetes, Terraform, and GitLab.
    • Coached squads through the Agile process optimizations, including Scrum and Kanban, and managed larger projects.
    • Recruited, mentored, and coached engineers using contributions, code reviews, Git insights, Pluralsight, and growth-oriented feedback.
    Technologies: Agile Coaching, Management, Coaching, Software Engineering, Budgeting, Software Architecture, CI/CD Pipelines, Python, Java, MySQL, PostgreSQL, DevOps, Terraform, Google Cloud Platform (GCP)

  • Reliability Engineering Manager

    2018 - 2019
    Public Library of Science
    • Advocated for DevOps team and projects. Coordinated with software development cadences and product release schedules.
    • Optimized reliability by introducing site reliability engineering (SRE) practices.
    • Quantified costs of bespoke hardware and software platforms and laid groundwork for the adoption of cloud computing.
    Technologies: Agile Coaching, Automation, DevOps, Terraform, CI/CD Pipelines, TeamCity, Python, Go, SaltStack, VMware, Nutanix, Junos OS, Juniper, IP Networks, Ubuntu Linux, Docker

  • Senior DevOps Engineer

    2015 - 2018
    Public Library of Science
    • Hired to bring modern DevOps practices to the Public Library of Science's bespoke data center environment.
    • Contributed to modernizing infrastructure to run on Nutanix and VMWare with HashiCorp Consul and Vault.
    • Created tools in Python and Go for automating infrastructure, managing environments, and integrating them with CI/CD.
    • Advocated for the adoption of DevOps practices, CI/CD, infrastructure as code (IaC), and cloud computing.
    Technologies: SaltStack, Python, Vagrant, TeamCity, CI/CD Pipelines, Go, Terraform, VMware ESXi, Nutanix, Consul, Vault, ELK (Elastic Stack), MySQL, PostgreSQL

Experience

  • Configure It All | Cfitall
    https://cfitall.readthedocs.io/en/stable/

    After repeating the same boilerplate repeatedly to read files and environment variables for configuring an application, I wrote cfitall as an extensible configuration registry for Python. It currently supports environment variables, JSON files, and YAML files with an easy extensibility mechanism to plug in additional data sources.

  • Contactagon
    https://gitlab.com/wryfi/contactagon

    Contactagon is a simple contact form processing application written in Go and deployed as the Google Cloud Functions. This repurchase agreement shows software engineering skills in Go and Terraform modules to deploy the Cloud Functions to GCP.

  • Curriculum Vitae
    https://gitlab.com/wryfi/vita

    My interactive online CV is presented at cv.wryfi.net as an interactive React application, which displays my work history and skills visually. The data is stored as a simple and easily adjustable JSON file stored in a Google Cloud Storage (GCS) bucket. Downloadable versions are provided using Pandoc, wired to the front end via a simple Python Flask API. The whole thing is deployed as a Docker container to Google Cloud Run using Terraform.

Skills

  • Languages

    Python, Go, Bash Script, SQL, TypeScript, Python 3, Java, JavaScript

  • Tools

    Git, GitLab CI/CD, ELK (Elastic Stack), Terraform, TeamCity, SaltStack, VMware, Vagrant, Vault

  • Paradigms

    DevOps, Agile Workflow, Automation, Management, Quantitative Research

  • Platforms

    Debian, Linux, MacOS, Kubernetes, Docker, Google Cloud Platform (GCP), SolrCloud, OpenBSD, Ubuntu Linux, Amazon Web Services (AWS)

  • Frameworks

    Django, Flask, Twisted

  • Libraries/APIs

    Node.js, React, SQLAlchemy

  • Storage

    MySQL, PostgreSQL, Data Pipelines, Cassandra, Elasticsearch

  • Other

    Prometheus, Cloud Architecture, Data Architecture, Software Architecture, Configuration Management, Software Engineering, CI/CD Pipelines, Agile Coaching, Coaching, Big Data Architecture, Orchestration, Statistics, Quantitative Analysis, Public Speaking, Policy, Government, Law, Business Law, Legal Research, Legal, Research, Publication, Budgeting, Key Performance Indicators (KPIs), Nutanix, Junos OS, Juniper, IP Networks, VMware ESXi, Consul, Google Cloud Functions

  • Industry Expertise

    Telecommunications

Education

  • Juris Doctor Degree in Legal Studies
    2006 - 2009
    Santa Clara University - Santa Clara, California, United States
  • Bachelor of Science Degree in Public Affairs
    1999 - 2002
    Indiana University - Bloomington, Indiana, United States

Certifications

  • Professional Cloud Architect
    NOVEMBER 2022 - NOVEMBER 2024
    Google Cloud
  • SaltStack Certified Engineer
    OCTOBER 2017 - PRESENT
    SaltStack

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