GitHub Enterprise Platform Administrator / Engineer

Company Description 
Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, and Enterprise Transformation. 
 
Job Role: GitHub Enterprise Platform Administrator / Engineer
Job Location: Washington DC (Remote)
Job Type: Long Term Contract
 
JOB SUMMARY:
We are seeking an experienced GitHub Enterprise Platform Engineer / Administrator to own and manage our enterprise GitHub platform. This role is responsible for GitHub Enterprise administration, governance, security, automation, developer enablement, and CI/CD platform engineering across the organization.
The ideal candidate will have extensive hands-on experience administering GitHub Enterprise Cloud (EMU) or GitHub Enterprise Server, implementing enterprise governance, managing GitHub Actions infrastructure, GitHub Advanced Security (GHAS), and driving platform modernization initiatives.
 
Key Responsibilities
GitHub Enterprise Administration & Governance

• Administer GitHub Enterprise Cloud (Enterprise Managed Users - EMU) or GitHub Enterprise Server
• Manage enterprise organizations, repositories, teams, and enterprise-wide policies.
• Configure and enforce organization rulesets, branch protection rules, and required status checks.
• Implement repository governance using templates, GitHub repositories, CODEOWNERS, and repository properties.
• Manage SAML/SCIM authentication and identity integration with Microsoft Entra ID or Okta
• Automate user and team provisioning.
• Implement policy-as-code using Terraform, GitHub APIs, or similar automation tools.

 
GitHub Actions Platform Engineering

• Deploy, administer, and support GitHub Actions at enterprise scale.
• Configure and manage self-hosted runners.
• Deploy and maintain Actions Runner Controller (ARC) on Kubernetes.
• Manage runner groups, larger hosted runners, and enterprise usage governance.
• Build and maintain reusable workflows and composite GitHub Actions.
• Develop versioning and release strategies for shared workflow libraries.
• Secure GitHub Actions by implementing: OIDC authentication, SHA-pinned actions, Allowed Actions policies, Deployment environments, Required reviewers, Deployment protection rules.

 
GitHub Advanced Security (GHAS)

• Administer GitHub Advanced Security across enterprise organizations.
• Configure and maintain: CodeQL, Secret Scanning, Push Protection, Dependabot.
• Develop custom CodeQL queries.
• Tune security findings to reduce false positives.
• Build enterprise security dashboards and reporting.
• Drive remediation campaigns and security compliance.
• Integrate GHAS findings into enterprise security tools and CI/CD pipelines.

 
Automation & Platform Integrations

• Develop automation using GitHub REST and GraphQL APIs.
• Build GitHub Apps and webhook-driven automation.
• Develop tooling using GitHub CLI (gh)

 
Migration & Modernization

• Lead enterprise migrations from:  GitLab, Bitbucket, Azure DevOps, Jenkins
• Utilize GitHub Enterprise Importer (GEI) and gh gei.
• Modernize legacy CI/CD pipelines into GitHub Actions
• Minimize disruption during migration activities.

 
Developer Experience & Platform Engineering

• Implement GitHub Copilot governance and enterprise adoption.
• Build self-service developer platforms.
• Support Internal Developer Platforms (IDP)
• Integrate GitHub with Backstage or similar developer portals.
• Define and report platform metrics including: DORA metrics, GitHub Actions usage, Audit logs, Security posture, Platform adoption.

 
Required Qualifications

• 3+ years of hands-on GitHub Enterprise administration.
• Experience with GitHub Enterprise Cloud (EMU) or GitHub Enterprise Server.
• Strong knowledge of GitHub Actions platform administration.
• Experience with GitHub Advanced Security (GHAS).
• Experience with GitHub REST API and GraphQL API.
• Strong scripting and automation experience.
• Experience with Terraform (GitHub Provider preferred).
• Experience integrating GitHub with Microsoft Entra ID or Okta.
• Experience managing SAML/SCIM authentication.
• Experience with Kubernetes and Actions Runner Controller (ARC).
• Experience implementing enterprise GitHub governance.
• Experience leading GitHub migration initiatives.
• Strong understanding of DevSecOps and software supply chain security.

 
Preferred Qualifications

• Experience with GitHub Copilot Enterprise.
• Experience building Internal Developer Platforms (IDP).
• Experience with Backstage.
• Experience implementing policy-as-code.
• Familiarity with GitHub billing and usage management for: GitHub Actions, GitHub Packages, GitHub Advanced Security.
• Experience defining DORA metrics and engineering productivity reporting.

 
Lumen Solutions Group Inc is an equal opportunity employer. All qualified applicants will be considered for employment without regard to any legally protected status.