Sr. Systems Administrator - Hybrid Infrastructure

Now Hiring:
Sr. Systems Administrator — Hybrid Infrastructure

Location: Downtown Houston, TX
1+ Year contract with possibility of extension or conversion.

• Opportunity to get in on ground floor of a modernization project for the company. This will be the 2nd hire on the team.
• New office space located in centralized downtown location

A growing enterprise is seeking an experienced Hybrid Infrastructure Administrator to manage, maintain, and modernize its infrastructure across both on-premises and cloud environments. The ideal candidate brings deep expertise in traditional systems administration — servers, virtualization, networking, storage, Active Directory, and firewalls — alongside hands-on experience with public cloud platforms (AWS, Google Cloud, Azure, or equivalent).

This role keeps critical business systems reliable, secure, scalable, and performant while driving modernization forward. The ideal candidate is a self-starter who can support day-to-day operations and lead infrastructure initiatives, with strong technical, analytical, and communication skills.

• Administer and troubleshoot on-prem server infrastructure (Windows and Linux), including OS upgrades and vendor patching
• Configure and manage networking and firewall rules for performance, reliability, and security
• Design, build, and maintain VMware virtualized environments
• Administer hybrid cloud across AWS, GCP, and Azure — including networking, security controls, and monitoring
• Develop automation scripts and Infrastructure as Code (IaC) to streamline provisioning and administration
• Manage Active Directory, domain controllers, and Group Policy (GPOs)
• Administer enterprise firewalls (Sonic Wall and Palo Alto)
• Manage enterprise storage (Isilon, Vblock, VxRail, Data Domain, Avamar)
• Lead cloud and infrastructure migration projects from planning through delivery
• Manage vendor relationships and procurement
• Maintain clear documentation, architecture diagrams, and project updates

• 7+ years as a System, Infrastructure, or Network Administrator (or similar)
• Strong on-prem experience:
  Windows Server, Linux, Active Directory, DNS, DHCP, storage, virtualization, and networking
• Hands-on VMware administration
• Experience designing and supporting hybrid on-prem/cloud environments
• Hands-on experience with at least one cloud platform (AWS, GCP, or Azure)
• Solid grasp of cloud networking, identity, security, monitoring, backup, and disaster recovery
• IaC experience (Terraform, Cloud Formation, ARM/Bicep, Ansible, Pulumi, or similar)
• Scripting and automation (Power Shell, Bash, Python, or similar)
• Firewall administration experience, including Sonic Wall and Palo Alto
• Demonstrated project management experience
• Strong troubleshooting, communication, and documentation skills, with the ability to explain technical concepts to any audience

• Certifications:
  
  AWS Sys Ops Administrator or Solutions Architect Associate, Google Associate Cloud Engineer / Professional Cloud Architect, Azure Administrator Associate, VMware VCP, CompTIA Network+ or Security+
• ITIL best practices and documentation standards
• Dev Ops and CI/CD pipeline experience
• Containerization (Docker, Kubernetes)
• Monitoring and observability tools (Solar Winds, Datadog, Splunk, or similar)

If this sounds like a fit — for you or someone in your network — apply or reach out directly.