- Developed a cross-account AWS Codecommit repository syncing platform using Terraform, AWS EventBridge, and AWS Lambda with Python scripting. This system enhanced development workflows and improved AWS environment isolation by employing least-privileged IAM permissions.- Created Codecommit CI/CD pipelines across accounts for applications ranging from Ruby on Rails to Strapi and Next.js. These pipelines automated the building and pushing of Docker images to a private ECR. Upon completion, they triggered an image pull or a fleet refresh in the backend, ensuring seamless updates across environments.- Authored and maintained a significant custom (5,000+ SLOC) Terraform module codebase. Ensured comprehensive documentation to facilitate team use and updates.- Developed a self-hosted, in-house private Terraform module registry pipeline, enabling centralized management and versioning of Terraform modules.- Implemented autoscaling AWS infrastructure solutions, using AWS EC2 Auto Scaling groups or AWS Fargate, ECR, EFS, RDS, Elasticache, and EC2 Image Builder, etc. This optimized infrastructure adaptability and performance for evolving business needs.- Managed legacy Linux-based monolith LEMP (Linux, Nginx, MySQL, PHP) stacks, integrating Varnish Cache to enhance scalability and performance. Automated monolith patching and security of critical applications via AWS Systems Manager.- Established a comprehensive monitoring and alerting system using AWS CloudWatch and SNS, significantly enhancing incident management and providing thorough oversight of system health. This setup included the integration of a custom Python-based AWS Lambda EventBridge relay messenger, ensuring proactive responses to potential issues through timely team notifications.- Deployed and maintained a suite of tools such as Redmine, Mattermost, Vaultwarden, and Wireguard to streamline operations and enhance security.

- Implemented GitLab Runner, pioneering CI/CD pipelines to automate software testing and delivery.- Authored detailed documentation on Redmine to streamline project workflows.- Led migration and deployment of high-traffic Drupal and CiviCRM websites across development, staging, and production environments.- Maintained Prometheus and Grafana monitoring solutions and LEMP (Linux, Nginx, MySQL, PHP) stacks with Memcached, using an Ansible codebase.- Maintained a high-volume Postfix mail server, averaging 1 million emails monthly, enhancing deliverability by implementing DMARC, DKIM, SPF, Postfix rate limiting and tuning.- Collaborated with a team using GitLab, Redmine, and Mattermost, while supporting developers and project managers with clear communication methods easily relayed to end-clients.

- 10+ hours daily mastering fundamentals: Bash, SSH, GPG, Git, Emacs, Linux (boot, kernel, init, path, env, ports, sockets), TCP/IP, HTTP, DNS, Iptables, Tracing, Logging, Filesystems, AWS / Cloud, Docker, Libvirt, Qemu and beyond.- KISS Linux Distro Dev / GNU Stack Package Maintainer, https://github.com/dylanaraps/community/issues/1165- Technical Documentation Writer and Q&A Troubleshooter, funtoo.org- Create Themelios NixOS zfs-on-root installer, https://github.com/a-schaefers/themelios- Create Spartan Emacs, https://github.com/a-schaefers/spartan-emacs- Misc. commits merged to upstream open-source software, e.g. https://bugzilla.kernel.org/show_bug.cgi?id=206741- Accidentally went viral on Hacker News, by init'ing my Linux distro using Emacs, dubbing it 'systemE' https://news.ycombinator.com/item?id=28439275