Network Security Engineer

Apex Systems is seeking a Network Security Engineer in Richmond, Virginia, to support and enhance the security posture of a client's enterprise IT infrastructure. This contract position plays a critical role in safeguarding IT systems through proactive monitoring of the environment, performing incident response activities, implementation, and configuration of security best practices in all IT security software.

Job #: 3011766

• Incident Response & Monitoring
  • Detect, analyze, and respond to security incidents across endpoints, networks, and cloud environments.
  • Investigate alerts and anomalies using Splunk, Solar Winds, Cisco Secure Endpoint, and Secure Network Analytics.
  • Document and manage incidents and service requests using ticketing systems such as Service Now and Jira.
• Identity & Access Management (IAM)
  • Administer and maintain IAM systems, including role-based access controls and user provisioning.
  • Manage and troubleshoot MFA platforms such as Duo or Microsoft Authenticator.
  • Work closely with directory services, including Active Directory and Azure AD.
  • Support NAC policies and enforcement to control device access to the network.
• Vulnerability & Threat Management
  • Conduct regular vulnerability scans using Qualys.
  • Collaborate with IT teams to remediate findings and strengthen security posture.
• Network & Cloud Security
  • Monitor network traffic and protocols (TCP/IP, DNS, HTTP/S) for suspicious activity.
  • Support cloud security initiatives using Cloudflare and Cisco Secure Access suite.
  • Configure and maintain Cisco Thousand Eyes for network visibility and performance.
• Documentation & Collaboration
  • Maintain detailed records of incidents, investigations, and remediation efforts.
  • Contribute to security awareness training and cross-functional collaboration.

• 3+ years of experience in cybersecurity, IT operations, or related field.
• Strong understanding of IAM principles and MFA implementation.
• Hands‑on experience with tools such as Qualys, Nessus, DUO, Solar Winds, Splunk, Cloudflare, and EDR solutions.
• Familiarity with Cisco security products, including Secure Access, Umbrella, Any Connect, Thousand Eyes, and Secure Network Analytics.
• Experience with ticketing systems such as Service Now and Jira.
• Working knowledge of Active Directory and Entra.
• Solid grasp of network protocols and traffic analysis.
• CompTIA Security+ or equivalent certification.

• 5+ years of experience in cybersecurity, IT operations, or related field.
• Bachelor’s degree in Cybersecurity, Information Technology, or related discipline.
• Experience with cloud platforms (Azure, AWS, GCP) and their security features.
• Familiarity with Microsoft Sentinel, Entra , and Defender for Identity.
• Exposure to Zero Trust implementation frameworks and NAC platforms (e.g., Cisco ISE, Aruba Clear Pass).
• Actively pursuing or obtained industry‑standard certifications such as CISSP, CISM, CEH, Microsoft SC‑200 or SC‑300, Cisco Cyber Ops Associate, GIAC Security Essentials (GSEC).

Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We provide an ESPP (employee stock purchase program) and a 401K program, HSA, and Support Linc Employee Assistance Program (EAP) with up to 8 free counseling sessions. Additional corporate discounts and professional development resources such as on‑demand training, certification prep, and access to provider discounts are available.

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.

Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.