Network and Security Administrator Consultant

• Provide L2/L3 support, diagnose and resolve incidents to keep networks operational
• Open and track tickets with vendors and operators
• Write and maintain incident procedures
• Administer and monitor LAN/WAN/WLAN and security infrastructures, including firewalls, load balancers and proxies
• Manage equipment lifecycle and IPAM
• Contribute to automating operational tasks using Ansible
• Handle business change requests
• Provide technical expertise for infrastructure projects
• Manage network interconnections and replacement of end-of-life equipment
• Write and update operational procedures, runbooks, DEX and network diagrams (L1 to L3)
• Participate in the preparation of the DAT (Technical Architecture Document)
• Act as an interface between internal teams, application teams and external partners/operators

Requirements

• Bachelor's or Master's degree in Networks, Telecommunications or Computer Science
• Mid to senior profile with 4 to 10 years' experience administering complex network and security infrastructures
• Strong hands-on experience with Extreme Networks (LAN), Aruba and Cisco (WLAN)
• Proven expertise with Fortinet and Palo Alto
• Solid experience with BGP, PBR and SD-WAN
• Knowledge of Aruba ClearPass, Central and AirWave
• Familiarity with automation using Ansible
• Experience with IPAM/CMDB management
• Strong interpersonal skills to liaise between internal teams, application teams and external partners/operators
• Analytical mindset, rigor and ability to quickly diagnose complex incidents
• Flexibility to provide on-call coverage and perform interventions outside business hours (OOH)
• Professional working proficiency in English

Core Competencies

Demonstrates expertise in administering complex network and security infrastructures, including hands-on experience with Extreme Networks, Aruba, and Cisco technologies. Proficient in incident management, automation using Ansible, and effective communication with internal and external stakeholders.

Highest-signal resume keywords

• L2/L3 Support
• Network Administration
• Ansible Automation
• IPAM Management
• Fortinet and Palo Alto Expertise

ATS Optimization Keywords

Hard Skills

• Network Administration
• Incident Management
• BGP
• PBR
• SD-WAN
• Extreme Networks
• Aruba
• Cisco
• Fortinet
• Palo Alto

Soft Skills

• Interpersonal Skills
• Analytical Mindset
• Rigor
• Flexibility

Industry Keywords

• Networks
• Telecommunications
• Computer Science
• Technical Architecture Document
• Operational Procedures

Tools & Technologies

• LAN
• WAN
• WLAN
• Firewalls
• Load Balancers
• Proxies
• Aruba ClearPass
• Aruba Central
• Aruba AirWave
• CMDB