IT Network & Cybersecurity Teamlead
About the job
SSS is looking for a Senior IT Network & Cybersecurity Administrator to lead and enhance our enterprise network infrastructure and cybersecurity operations, ensuring secure, reliable, and scalable IT environments across on-premises and cloud platforms. Key Responsibilities Design, implement, and manage enterprise network infrastructure: LAN/WAN, VLANs, routing (OSPF, BGP, static), Layer 2/3 switching, network segmentation, and firewall security (rules, policies, VPN).
Administer and optimize Microsoft Azure and AWS environments: virtual machines, networking, identity management (Entra ID, MFA, Conditional Access), IAM, security groups, and access policies.
Manage Microsoft Intune for device compliance, application deployment, and security configuration.
Lead cybersecurity operations: firewalls, endpoint protection, IDS/IPS, vulnerability assessments, incident response, and security risk management.
Manage Microsoft Exchange (Online and On-Premises): mail flow, archiving, and protection against phishing and malware.
Support IP Telephony, SIP, and QoS.
Maintain security documentation, network diagrams, policies, and compliance requirements.
Provide technical leadership and mentorship to junior IT team members.
Required Qualifications Bachelor's degree in IT, Computer Science, or a related field.
5+ years in network administration and cybersecurity roles.
Hands-on experience with:
Azure: Entra ID, VMs, networking, MFA, Conditional Access.
AWS: EC2, S3, VPC, IAM, Security Groups.
Intune and endpoint management.
Enterprise firewalls and network security.
VLAN, routing, switching, LAN/WAN.
Exchange administration.
Practical experience with Sophos, Mimecast, endpoint protection platforms, and security awareness platforms (KnowBe4 or equivalent).
Understanding of NIST, ISO 27001, and CIS Controls.
Plus: website administration and CMS platforms.
Preferred Certifications: CCNP, AZ-104, AZ-500, AWS Solutions Architect / Security Specialty, CEH / CISSP, Sophos or Mimecast certification.