Senior System Administrator - DCGS Infrastructure

Senior System Administrator - DCGS Infrastructure

T2S Solutions is seeking a Senior Systems Administrator to serve full time, with duty location onsite at APG, MD.

• vSphere / ESXi Administration:
  Deep experience managing clusters, hosts, resource pools, DRS/HA, and VM lifecycle operations in enterprise environments.
• vCenter Operations:
  Skilled in configuring, monitoring, and optimizing vCenter, including performance tuning, capacity planning, and role-based access control.
• VMware Networking & Storage:
  Strong understanding of vSwitches, distributed switches, VLANs, iSCSI/NFS/FC storage, and datastore performance considerations.
• Cluster Design & Scaling:
  Ability to architect resilient, scalable clusters and optimize workloads for performance and availability.
• Performance Troubleshooting:
  Skilled at diagnosing CPU ready issues, memory ballooning, storage latency, and network bottlenecks using VMware tools and logs.
• Automation & Templates:
  Experience creating "gold" images, VM templates, and leveraging automation to standardize deployments.
• Hybrid Cloud Integration Concepts:
  Understanding of cloud landing zones, hybrid identity, network connectivity (VPN/Express Route/Direct Connect), and workload migration patterns.
• Cloud Offerings:
  Knowledge of VMware Cloud options, AWS, Azure, or similar platforms to support cloud-based vSphere integration.
• Infrastructure as Code (IaC):
  Familiarity with Terraform, Ansible, or similar tools as environments move toward cloud-native practices.
• Understanding how virtualization supports container platforms, Dev Ops pipelines, and modern application architectures.
• Strong grasp of routing, switching, firewalls, load balancers, DNS, DHCP, and how they interact with virtualized environments.
• Windows & Linux Administration:
  Skilled in patching, performance tuning, and troubleshooting across both OS families.
• Skilled at translating technical concepts for leadership, collaborating with security, networking, and application teams.
• Supporting junior admins, leading technical initiatives, and driving best practices across the team.

• 5+ years of experience administering VMware ESXi, vCenter, and vSphere in enterprise environments.
• Strong knowledge of virtual networking, storage technologies, and performance troubleshooting.
• Experience with backup/DR platforms and enterprise monitoring tools.
• Solid understanding of Windows and Linux server administration.
• Familiarity with cloud platforms (Azure, AWS) and hybrid-cloud concepts.

• Experience with VMware Cloud offerings, AWS, Azure, or similar offerings.
• Hands‑on experience with workload migration tools (HCX, vMotion across environments, cloud migration services).
• Exposure to IaC tools such as Terraform or Ansible.
• Knowledge of container platforms, Dev Ops practices, or modern application architectures.

T2S Solutions is an Equal Opportunity Employer/Protected Veteran/Disability