Prophecy Technologies
Senior System Administrator (Prophecy Technologies)
Job Title:
Senior System Administrator
Department:
IT Infrastructure & Operations
Location:
Joliet, IL
PURPOSE
The Senior System Administrator is responsible for architecting, implementing, and maintaining the organization’s enterprise systems and infrastructure to ensure optimal performance, scalability, and security. This role provides leadership across virtualization, systems, and storage management, supporting mission‑critical workloads and driving modernization through automation, observability, and standardization. The Senior System Administrator serves as a senior technical escalation point, mentors junior team members, and ensures adherence to corporate cybersecurity and compliance standards.
Infrastructure & Systems Management
Design, configure, and maintain
VMware vSphere, ESXi, and vCenter
environments.
Administer
Windows Server (2016/2019/2022)
and
Linux (RHEL, Ubuntu, CentOS)
systems, including patching, configuration, and security hardening.
Manage
Active Directory, Group Policy, DNS, and DHCP
for secure identity and network operations.
Implement and maintain
Veeam Backup & Replication
for enterprise‑class backup and disaster recovery.
Support enterprise
SAN/NAS storage systems , ensuring high availability and lifecycle optimization.
Network & Security
Configure and maintain
firewalls, VPNs, and network appliances
(Cisco, Fortinet, Palo Alto).
Work with the Cybersecurity team to ensure system patching, endpoint protection, and compliance with
DMARC/SPF/DKIM
standards.
Monitor system and network performance proactively and perform capacity planning.
Maintain strict system hardening, access control, and audit compliance.
Automation, Monitoring & Reliability
Develop
automation scripts
using
PowerShell, Bash, or Ansible
to streamline system operations.
Implement and maintain
monitoring and observability tools
such as
SolarWinds, Dynatrace, Grafana, or Splunk .
Lead
root cause analysis
and implement preventive and corrective actions for high‑impact incidents.
Participate in continuous improvement initiatives for infrastructure automation and operational resilience.
Serve as
Tier‑3 escalation
for complex infrastructure and system issues.
Collaborate with IT leadership to define
infrastructure strategy, capacity planning, and modernization initiatives .
Mentor junior administrators and ensure operational standards and documentation are maintained.
Participate in
on‑call rotation
and perform after‑hours maintenance as required.
Seniority Level Mid‑Senior level
Employment Type Contract
Job Function Administrative, Business Development, and Customer Service
Industries Software Development, Motor Vehicle Manufacturing, and IT Services and IT Consulting
#J-18808-Ljbffr
Senior System Administrator
Department:
IT Infrastructure & Operations
Location:
Joliet, IL
PURPOSE
The Senior System Administrator is responsible for architecting, implementing, and maintaining the organization’s enterprise systems and infrastructure to ensure optimal performance, scalability, and security. This role provides leadership across virtualization, systems, and storage management, supporting mission‑critical workloads and driving modernization through automation, observability, and standardization. The Senior System Administrator serves as a senior technical escalation point, mentors junior team members, and ensures adherence to corporate cybersecurity and compliance standards.
Infrastructure & Systems Management
Design, configure, and maintain
VMware vSphere, ESXi, and vCenter
environments.
Administer
Windows Server (2016/2019/2022)
and
Linux (RHEL, Ubuntu, CentOS)
systems, including patching, configuration, and security hardening.
Manage
Active Directory, Group Policy, DNS, and DHCP
for secure identity and network operations.
Implement and maintain
Veeam Backup & Replication
for enterprise‑class backup and disaster recovery.
Support enterprise
SAN/NAS storage systems , ensuring high availability and lifecycle optimization.
Network & Security
Configure and maintain
firewalls, VPNs, and network appliances
(Cisco, Fortinet, Palo Alto).
Work with the Cybersecurity team to ensure system patching, endpoint protection, and compliance with
DMARC/SPF/DKIM
standards.
Monitor system and network performance proactively and perform capacity planning.
Maintain strict system hardening, access control, and audit compliance.
Automation, Monitoring & Reliability
Develop
automation scripts
using
PowerShell, Bash, or Ansible
to streamline system operations.
Implement and maintain
monitoring and observability tools
such as
SolarWinds, Dynatrace, Grafana, or Splunk .
Lead
root cause analysis
and implement preventive and corrective actions for high‑impact incidents.
Participate in continuous improvement initiatives for infrastructure automation and operational resilience.
Serve as
Tier‑3 escalation
for complex infrastructure and system issues.
Collaborate with IT leadership to define
infrastructure strategy, capacity planning, and modernization initiatives .
Mentor junior administrators and ensure operational standards and documentation are maintained.
Participate in
on‑call rotation
and perform after‑hours maintenance as required.
Seniority Level Mid‑Senior level
Employment Type Contract
Job Function Administrative, Business Development, and Customer Service
Industries Software Development, Motor Vehicle Manufacturing, and IT Services and IT Consulting
#J-18808-Ljbffr