Sr. GitLab System Admin

Role: Sr. GitLab System Admin

Location(s): Remote Work

Type of Employment: Contract

• Linux system administration
• GitLab Enterprise Edition administration (Omnibus installs, upgrades, configuration)
• PostgreSQL database administration (backups, replication, tuning)
• Ansible configuration management (writing/maintaining playbooks and roles)
• HAProxy or F5 load balancer configuration (SSL termination, backend pools, health checks)
• TLS/SSL certificate management (full CA chain, renewals, troubleshooting)
• Shell scripting (Bash) for automation and troubleshooting
• Monitoring and log analysis (Splunk, Grafana, Prometheus, or similar)
• Strong working knowledge of Git workflows, branching, and merge requests
• Networking fundamentals (DNS, firewalls, TCP/IP, port management)
• CI/CD concepts, GitLab Runners, pipelines, shared runner infrastructure
• Terraform (AWS infrastructure provisioning, state management)
• Experience setting up or migrating GitLab to AWS cloud environments and/or Kubernetes (Helm chart deployments, EKS/ECS orchestration)

Roles & Responsibilities:

• Administer and maintain GitLab across multiple environments
• Perform structured version upgrades across all environments following change management procedures
• Manage platform infrastructure
• Maintain and extend Ansible playbooks and Terraform configurations (infrastructure-as-code)
• Setu and Manage AWS Geo DR site
• Administer GitLab Runners (shared Linux runners, EKS runners) and CI/CD infrastructure
• Support cloud-native GitLab deployments including Kubernetes-based installations using Helm charts and container orchestration on EKS
• Monitor platform health using Splunk, Grafana, and ServiceNow alerting and responding to incidents
• Handle user support requests via Mattermost and ServiceNow escalations
• Manage SSL/TLS certificates, Kerberos Keytabs, and service accounts
• Remediate vulnerabilities and manage Corrective Action Plans (CAPs) within required timelines
• Participate in SAFe Program Increments and sprint ceremonies
• Document procedures, runbooks, and architecture changes in team wiki
• Coordinate with Network, Security, Database, and M365 teams for cross-functional work

Generic Managerial Skills:

• Coordinate with team across multiple towers
• Ability to effectively communicate with Product Managers, Architects and other Stakeholders.
• Strong analytical and problem-solving skills.
• Ability to work independently and as part of a team.
• Prioritization and time management across multiple concurrent tasks (compliance deadlines, upgrades, support)
• Mentoring and knowledge transfer to junior team members