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Systems Security Administrator - 1st Shift (8 am to 5 pm)

Systems Security Administrator - 1st Shift (8 am to 5 pm)

Bridgehead I.T.San Antonio, TX, United States
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Position Summary :

The Systems Security Administrator is responsible for the implementation, administration, and maintenance of both security systems and general IT infrastructure. This hybrid role combines traditional systems administration with a strong focus on cybersecurity, ensuring that networks, servers, and systems are secure, well-managed, and optimized for performance.

Key Responsibilities

  • Manage, configure, and maintain servers, network systems, and related hardware / software, ensuring system uptime, security, and performance.
  • Implement and maintain security systems such as firewalls, intrusion detection / prevention systems (IDS / IPS), VPNs, and endpoint protection to safeguard against threats and vulnerabilities.
  • Administer and enforce security protocols such as user access control, encryption, and multifactor authentication (MFA) to ensure secure system environments.
  • Perform system updates, patches, and upgrades to keep systems and security protocols up to date, ensuring the stability and security of client infrastructure.
  • Conduct regular security audits, vulnerability assessments, and penetration tests to evaluate system defenses and mitigate potential risks.
  • Monitor and troubleshoot system performance issues, security alerts, and incidents, implementing quick resolutions to minimize downtime and impact.
  • Collaborate with IT teams to design, configure, and implement new systems and solutions, ensuring alignment with security standards and business needs.
  • Manage Active Directory, Office 365, and other user management platforms, ensuring secure and effective account provisioning and access control.
  • Document system and security configurations, procedures, and incident responses to ensure compliance and streamlined operations.
  • Provide technical support to internal teams and clients, ensuring secure configurations and effective use of IT resources.

Maintain secure backup and disaster recovery processes, performing regular tests to verify system resilience.

  • Stay updated on the latest security threats, vulnerabilities, and emerging technologies to continuously enhance security systems and practices.
  • Participate in on-call rotations to provide after-hours support for critical system and security incidents. Pursue advanced certifications in both system administration and security to drive career development and enhance organizational expertise.
  • Skills and Qualifications

  • Bachelor's degree in information technology, Cybersecurity, or a related field, or equivalent work experience.
  • 4-6 years of experience in systems administration and security, with strong knowledge of server and network management.

  • Experience managing security systems such as firewalls, IDS / IPS, VPNs, and SIEM tools, combined with traditional system administration tasks such as server management and network configuration.
  • Proficiency with virtualization technologies (VMware, Hyper-V) and cloud platforms such as AWS or Azure.
  • Strong knowledge of security standards and frameworks such as NIST, ISO 27001, and CIS Controls.
  • Hands-on experience with Active Directory, DNS, DHCP, and other core network services.
  • Familiarity with security monitoring, vulnerability scanning, and incident response procedures.
  • Excellent troubleshooting skills with the ability to diagnose and resolve complex security and system issues.
  • Strong communication and interpersonal skills, with the ability to work collaboratively across teams.
  • Relevant certifications such as CompTIA Security+, Microsoft Certified : Azure Administrator, Certified Information Systems Security Professional (CISSP), or equivalent is highly preferred.
  • Experience with ticketing systems to manage and resolve incidents and service requests.
  • Ability to participate in on-call rotations for after-hours support.
  • Employment Qualifications :

  • Must be legally authorized to work in the U.S. without sponsorship.
  • Bridgehead IT is proud to be an equal opportunity workplace and is an affirmative action employer.

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