JohnTSkarbek

Site Reliability Engineer

Operate on one of the largest installs of GitLab to ensure stability and performance for the site at a global scale supporting millions of users daily.

• Led the automation and scaling of GitLab's core infrastructure, transitioning from a manual, VM-based environment to a dynamic, auto-scaling system capable of supporting millions of users. This resulted in a significant increase in platform capacity and resource utilization.
• Drove zero-downtime deployments for GitLab.com, supporting millions of daily users, by implementing advanced release strategies and automated rollback procedures, ensuring a highly available and reliable platform.
• Reduced cloud storage costs for container images by collaborating with the Container Registry team on data migration and storage optimization, earning a discretionary bonus nomination.
• Developed and implemented automated escalation procedures for critical incidents, reducing MTTR by hours and improving incident response efficiency.
• Mentored junior SREs and engineers on best practices for infrastructure monitoring, incident management, and deployment processes, fostering a culture of reliability and knowledge sharing.

Infrastructure Engineer

Assisted in engineering and maintaining SaaS applications supporting tens of thousands of users, as well as various small feature applications in many different states and environments.

• Participated on a team to bring online the OpenShift Platform, integrating it into the existing environment, and assisting with development teams to migrate their applications to this new system.
• Provided cost savings by leading the feature of replacing aging load balancers with an open source solution utilizing haproxy.
• Managed a wide array of critical infrastructure components including: multi data center networks, bare metal and virtual servers, and cloud services in AWS.

System Administrator

Performed system administrative duties and helped developers with project-related infrastructure. Worked with an IT team to provide excellent tech support and kept the company working efficiently.

• Provided network operations control capabilities by strengthening environment monitoring including health checks and gathering historical metric data of various services.
• Managed/improved 2 VMware Clusters of 8 servers, 5 Atlassian products, and custom written tools in PHP.
• Provided application and server configuration management utilizing Puppet to improve developer and operational environments.
• Enhanced the security posture of the network through the use of DMZ's/VPC's.