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Network Administrator (Contract)
Network Administrator (Contract)Nexus Technologies LLC • Santa Clara, CA, US
Network Administrator (Contract)

Network Administrator (Contract)

Nexus Technologies LLC • Santa Clara, CA, US
1 day ago
Job type
  • Temporary
Job description

Job Description

Job Description

Job Title : Network Administrator

Location : Santa Clara, CA - on-site 5 days / week with travel to data centers as needed

Type of hire : Contract

Duration : 6 month contract to start, potential for extension

Working Conditions

  • 5 days per week on-site is preferred, with travel to data centers as needed.
  • May require availability outside of standard hours for maintenance windows or critical incidents.
  • Occasional travel to the Austin site may be required.

Job Summary

This individual will be responsible for managing and optimizing both cloud-based and on-premise systems, with a strong emphasis on network security, server infrastructure, virtualization, and Microsoft ecosystem technologies including Azure and Active Directory. The role requires strong Linux systems experience and the ability to perform hands-on data center work such as racking, stacking, and basic hardware setup. They will have a deep understanding of enterprise environments, is capable of supporting infrastructure projects end-to-end, and can provide high-level support to internal stakeholders.

Key Responsibilities

Infrastructure Engineering & Management

  • Design, deploy, and maintain core network infrastructure, including firewalls, routers, switches, and VPNs.
  • Configure and manage enterprise Linux and Windows Server environments, including DNS, DHCP, Group Policy, and File Services.
  • Administer and support virtualization platforms such as VMware ESXi, Microsoft Hyper-V, or Proxmox VE.
  • Plan and manage scalable storage solutions (NAS, SAN) for high availability and disaster recovery.
  • Perform hands-on data center work, including hardware installation, cabling, and troubleshooting.
  • Cloud & On-Premise Platform Integration

  • Design and manage Azure Cloud environments (IaaS, networking, security groups, NSGs, VNets, VPN Gateways).
  • Integrate and administer Azure Active Directory, Microsoft 365, and related identity and access management solutions.
  • Maintain and troubleshoot on-premise Active Directory or LDAP-based authentication infrastructure.
  • Security and Compliance

  • Implement and maintain network security best practices including firewall policies, intrusion prevention / detection, and endpoint security.
  • Ensure systems and configurations meet compliance standards (e.g., ISO, SOC2, HIPAA, as applicable).
  • Monitor, analyze, and remediate vulnerabilities in system and network infrastructure.
  • Operational Support & Documentation

  • Monitor system and network performance, ensuring high availability and performance tuning.
  • Provide tier 3 escalation support to internal IT teams and occasionally to end users.
  • Develop and maintain comprehensive infrastructure documentation, including topology diagrams and configuration guides.
  • Participate in change management and capacity planning efforts.
  • Collaboration & Continuous Improvement

  • Work closely with application, cybersecurity, and DevOps teams to align infrastructure services with organizational goals.
  • Evaluate and recommend new technologies and tools to improve efficiency, security, and reliability.
  • Required Skills and Qualifications

  • Bachelor’s degree in Computer Science, Information Technology, or equivalent experience.
  • 5+ years of hands-on experience in a senior infrastructure or systems / network engineering role.
  • Strong Linux systems administration experience.
  • Advanced expertise with firewalls (e.g., Fortinet, Palo Alto, Cisco ASA), routers, and switches.
  • Strong hands-on experience with Windows Server platforms, Active Directory, Group Policy, and PowerShell scripting.
  • Proven experience in Azure cloud infrastructure, including compute, networking, and security services.
  • Proficient in VMware vSphere / ESXi, Microsoft Hyper-V, or Proxmox VE.
  • Familiarity with enterprise storage platforms, including backup and replication strategies.
  • Knowledge of network protocols and services (TCP / IP, DNS, DHCP, SSL, SNMP, etc.).
  • Excellent problem-solving, analytical, and communication skills.
  • Willingness to perform hands-on data center work and occasional travel to the Austin site or other data centers.
  • Preferred Qualifications

  • Industry certifications such as Microsoft Certified : Azure Administrator Associate, VMware VCP, Cisco CCNP, CompTIA Network+, or Security+.
  • Experience with automation tools such as Ansible, Terraform, or PowerShell DSC.
  • Familiarity with hybrid identity models and SSO / SAML integrations.
  • Experience supporting environments within regulated industries (e.g., finance, healthcare, government).
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    Network Administrator • Santa Clara, CA, US

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