L2 Security Engineer – Aruba NAC
Job Summary
We are seeking an experienced L2 Security Engineer with hands-on expertise in Aruba Network Access Control (NAC) solutions. The candidate will be responsible for monitoring, administration, troubleshooting, policy support, and operational maintenance of enterprise NAC infrastructure to ensure secure network access and endpoint compliance.
Key Responsibilities
- Manage and support Aruba NAC infrastructure and network access security solutions.
- Monitor authentication, authorization, and endpoint compliance activities.
- Support onboarding of users, endpoints, and network devices into NAC policies.
- Configure and maintain NAC policies, roles, and access control rules.
- Monitor guest access, BYOD, and endpoint posture compliance.
- Analyze NAC alerts and investigate unauthorized access attempts.
- Support integration with Active Directory, LDAP, RADIUS, and MFA solutions.
- Generate operational, security, and compliance reports.
Security Operations
- Monitor NAC-related security incidents and suspicious activities.
- Support SOC and Incident Response teams during investigations.
- Perform log analysis and event correlation.
- Escalate critical incidents and security violations to L3/security teams.
- Ensure NAC policies align with organizational security standards.
Platform Support & Troubleshooting
- Troubleshoot authentication, connectivity, and endpoint compliance issues.
- Support installation, patching, upgrades, and maintenance activities.
- Monitor NAC server health, storage, and performance.
- Coordinate with network, server, and infrastructure teams for issue resolution.
- Perform backup and restoration support activities.
Compliance & Governance
- Support compliance requirements related to network access security.
- Maintain audit logs and access control reports.
- Support audits related to ISO 27001, PCI-DSS, and internal security controls.
- Ensure proper documentation and evidence collection for audit requirements.
Required Skills
- Hands-on experience with Aruba NAC or Aruba ClearPass solutions.
- Knowledge of Network Access Control (NAC) concepts and architecture.
- Experience with RADIUS, TACACS+, LDAP, Active Directory, and MFA integration.
- Understanding of endpoint posture assessment and compliance validation.
- Knowledge of TCP/IP, DNS, DHCP, VPN, VLANs, and firewall concepts.
- Basic Windows/Linux administration knowledge.
- Strong troubleshooting and analytical skills.
Preferred Certifications
- Aruba Certified ClearPass Professional (ACCP)
- Aruba Certified Mobility Associate (ACMA)
Experience & Qualification
- 3–6 years of cybersecurity or NAC administration/support experience.
- Minimum 2+ years of hands-on Aruba NAC/ClearPass support experience.
- Bachelor's degree in Computer Science, Information Security, or related field.
Good to Have
- Experience with SIEM platforms such as Splunk, QRadar, or Microsoft Sentinel.
- Knowledge of PowerShell, Python, or Bash scripting.
- Exposure to cloud environments such as AWS, Azure, or GCP.
- Understanding of compliance frameworks and audit requirements.
Skills: active directory,nac,radius,access control,compliance,infrastructure,ldap,aruba,clear pass
