Sr Network and Security Administrator

Job Purpose

To maintain Enterprise Level of Systems, Services and Solutions, and be able to handle and support the rapid changes and development on IT Technologies. Responsible for taking a lead role in overseeing active projects including but not limited to developing plans and schedules, interfacing with vendors, the acquisition of hardware/software and team management. Maintaining network system documentation; Developing and implementing network security procedures; and. Performing related duties as required.

Additional Responsibilities of Information Security Office which is to overseeing information security, cybersecurity and IT risk management programs based on industry-accepted information security and risk management frameworks.

Key Accountabilities

• Planning, designing, organizing and managing a highly complex enterprise LAN and WAN network and security infrastructure of ARG;
• Installing, configuring and administrating wide range of products and technologies mainly Network Devices, Firewalls, WAF, Load Balancers like CISCO, Fortinet, Juniper, Watch Guard, F5
• Hands on experience on wireless technology infrastructure of different brands like CISCO, Cambium, …etc.
• Perform network security design and integration;
• Hands on experience on CISCO IP Telephony, Cisco Call Manager and Microsoft Direct Routing for M365 Teams integration.
• Providing Third level support for network connectivity and network outages for all ARG facilities;
• Supporting network connectivity and security and managing ARG LAN (Local Area Network), WAN (Wide Area Network) environment;
• Hands on experience on SDWAN technology (implementation, Administration and Support).
• Knowledge of NAC, Zero Trust and SASE architecture.
• Ensuring best practice is adhered for incident and request management with periodic reviews to ensure tasks are completed in a timely manner.
• Maintain accurate and up to date network documentation of activities & functions performed under this role;
• Knowledge and experience on of Public Cloud Architecture and Design.
• Providing necessary information associated with network vulnerabilities and security risk assessments, and monitors ARG network infrastructure for malicious activity;
• Developing and implementing network and system security guidelines, and prepares necessary procedural specifications to meet design requirements;
• Maintain and improve network security and undertake day-to-day security tasks as delegated by Line Managers.
• Assist the IT Manager Governance & Security in the development and maintenance of appropriate processes, procedures and standards;
• Implement & test technical security controls to reduce risks;
• Coordinating, evaluating and participating in projects which calls for troubleshooting, installing, implementing, administering, and maintaining the ARG enterprise highly complex network;
• Maintaining communication with functional managers to ensure issues are resolved.
• Researching and evaluating new network hardware and software and make recommendations to management;
• Analysing the teams' workload and activity to drive efficiency and focus on SLA's and KPI's.
• Continual service improvement through best practice.
• Developing and implementing network security procedures; and performing related duties as required.

Additional Responsibilities

• Assist in the implementation and sustenance of Information Security Management System in line with IS027001 Standards
• Shall guide the team on their information security responsibilities
• Conduct security awareness sessions for new joiners/existing employees
• Working with the section heads and IT system administrators to ensure that aneffective process for implementing and maintaining the security controls is in place
• Review audit and examination reports dealing with the information security issues and place them to be reviewed by the IT Management during regular meetings
• The key threats to the information assets should be defined and communicated to the management of the organization at various point of time
• Responsible for the coordination of any Incident Response procedures undertaken in response to potential security breaches
• Co-ordinate or assist in the investigation of security threats or other attacks on the information assets
• Reporting security incidents and violations to the IT Manager – Governance and Security
• Review and Approval of prioritization plan for implementation of patches and fixes for vulnerabilities that are identified from time to time
• Responsible for Evaluation of Compliance of new standards/regulations
• Responsible for security clearance of new network solutions and participate in security clearance of new applications

Minimum Qualifications, Experience, Knowledge & Skills

• Bachelor Degree - Graduate & Security and Network Certifications;
• Hands-on experience in network management platforms/tools including Firewalls, VPN, IPS/IDS, and Core switches, Application firewall, Network Load balancer;
• Ability to communicate highly technical and complex security concepts effectively across all levels of the organization (both IT and business);
• Subject matter expertise in the networking and security field with (10+) years' experience;
• Solid understanding of network solutions (routing, switching, firewalls, VPN), and network security;
• Understanding of technical information security requirements and their interpretation in day-to-day business;
• Understanding of technical measurements and ability to execute them;
• Documentation, communication and reporting skills;
• Knowledge in other fields such as data centre, systems, database and storage will be an added advantage.
• Minimum CCNP (Routing and Switching), CCNP Security.
• Updated Certificates in Firewall, Switching, Routing, IP Telephony and Security.