Information Technology Security Administrator - Onsite

Information Technology Security Administrator - Onsite Information Technology Security Admin - Onsite ONSITE - Only local candidates will be considered. MUST be a US Citizen or Green Card Holder. Newtown Square, PA | Full-Time, Direct Hire Join a collaborative IT team as an Information Technology Security Administrator, where you'll play a hands‑on role protecting enterprise systems, sensitive data, and critical infrastructure. This opportunity offers a broad cybersecurity focus spanning incident response, vulnerability management, SIEM detection engineering, security platform administration, and risk mitigation. Enjoy a strong benefits package, excellent work-life balance, professional development support, and the opportunity to make a meaningful impact. What You'll Be Doing Monitor security alerts, investigate threats, and coordinate incident response Manage vulnerability assessments, remediation, and risk-based prioritization Develop and maintain SIEM detection rules, dashboards, and security integrations Administer EDR, identity and MFA, email security, firewalls, and data security tools Develop scripts and automation using PowerShell, Python, or Bash Support security audits, third‑party risk assessments, and compliance initiatives Manage security awareness training and phishing simulations Collaborate with IT teams on system hardening, patching, backup validation, and disaster recovery Required Experience 3+ years of information security or IT infrastructure experience Hands‑on experience with incident response and vulnerability management Experience with SIEM/EDR, identity and MFA, email security, and vulnerability management tools Scripting or automation experience Associate degree in IT, Computer Science, or a related field, or equivalent experience Ability to obtain a relevant cybersecurity certification within 12 months Preferred Experience CrowdStrike Falcon, Microsoft Entra ID, Cisco Duo, Varonis, or Veeam CompTIA Security+, CySA+, CISSP, CISM, or other relevant certifications Public‑sector information security experience Experience working with external security providers, auditors, and incident response partners Why Consider This Opportunity? Competitive compensation and comprehensive benefits Strong retirement plan with a 10% employer match Generous PTO, holidays, and winter break Summer compressed four‑day workweek Tuition waiver and reimbursement Professional development and certification support Supportive work environment with a strong work‑life balance Requirements Must be able to obtain required background clearances Must be available for scheduled after‑hours maintenance and participation in an on‑call rotation An Equal Opportunity Employer committed to diversity in the workplace. We celebrate the unique contributions that each team member brings to our organization. #J-18808-Ljbffr Liberty Personnel Services, Inc.