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Jobs via Dice

Senior Systems Administrator

Jobs via Dice, San Diego, California, United States, 92189

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Pay Base pay: $60.00/hr – $65.00/hr

Description The 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 System Administrator serves as a technical escalation point, mentors junior team members, and ensures adherence to corporate cybersecurity and compliance standards.

Skills

VMware vSphere, ESXi, vCenter

Windows Server (2016/2019/2022)

Linux (RHEL, Ubuntu, CentOS)

Active Directory, Group Policy

DNS, DHCP

Veeam Backup & Replication

SAN/NAS storage systems

Firewall, VPN configuration (Cisco, Fortinet, Palo Alto)

PowerShell, Bash, Ansible

Monitoring tools (SolarWinds, Dynatrace, Grafana, Splunk)

Essential Functions

Design, configure, and maintain VMware vSphere, ESXi, and vCenter environments.

Administer Windows Server and Linux systems, including patching, configuration, and security hardening.

Manage Active Directory, Group Policy, DNS, and DHCP.

Implement and maintain Veeam Backup & Replication.

Support enterprise SAN/NAS storage systems.

Configure firewalls, VPNs, and network appliances.

Work with Cybersecurity team on patching, endpoint protection, and DMARC/SPF/DKIM compliance.

Monitor system and network performance and perform capacity planning.

Maintain system hardening, access control, and audit compliance.

Develop automation scripts (PowerShell, Bash, Ansible).

Implement monitoring and observability tools.

Lead root cause analysis and corrective actions for incidents.

Participate in continuous improvement initiatives for automation and resilience.

Serve as Tier‑3 escalation for complex issues.

Collaborate with IT leadership on strategy, capacity planning, modernization.

Mentor junior administrators and maintain documentation.

Participate in on‑call rotation and after‑hours maintenance.

Qualifications

Bachelor’s degree in Computer Science, Information Technology, or related discipline (or equivalent experience).

Expert Level experience.

Job Type & Location Contract position based out of San Diego, CA. Fully onsite.

Pay And Benefits The pay range for this position is $60.00 – $65.00/hr. Other benefits may include Medical, dental & vision; Critical Illness, Accident, and Hospital; 401(k) Retirement Plan; Life Insurance; Disability; HSA; Transportation benefits; Employee Assistance Program; PTO, Vacation or Sick Leave.

Application Deadline This position is anticipated to close on Nov 5, 2025.

About TEKsystems We’re partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. TEKsystems is an equal‑opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

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