Senior Network Engineer

Overview:

This senior role involves maintaining the security, integrity, and availability of our telecommunications services, supporting around 14,000 users across 120+ sites. You'll be part of a busy, customer-focused environment, working on a broad and complex operational ICT infrastructure, with a significant emphasis on security and Wi-Fi.

Key Responsibilities:

• Design, implement, and support Cisco ASA firewalls and Firepower services.
• Function effectively in a challenging environment to provide comprehensive network, security (firewalls), and Wi-Fi support.
• Maintain and develop network infrastructure with a focus on security, reliability, and usability.
• Develop and implement industry standards and best practices for Wi-Fi security.
• Manage and maintain SLA terms and conditions for ICT Network Services.
• Communicate effectively regarding workload, SLA adherence, and problem resolution.
• Introduce new systems, tools, and services with strong project management skills.
• Identify and implement process improvements.
• Provide support as part of an on-call escalation rota outside standard working hours when necessary.

Required Knowledge and Skills:

• Advanced security knowledge and experience supporting enterprise data center firewall infrastructure.
• In-depth knowledge of routing, switching, and Cisco ASA Firewalls with Firepower.
• Thorough understanding of IT and communications, including TCP/IP, DHCP/IPAM, DNS, proxy servers, web browsers, databases, and external gateways.
• Advanced technical knowledge of network topology, data network support, and VOIP systems.
• Understanding of ITIL and its application across the service lifecycle.

Experience:

• Extensive experience in technical ICT Networks Design, Implementation, and Support in a complex corporate environment.
• Experience with Cisco/Aerohive Wi-Fi systems in a corporate environment.
• Proficiency with Windows OS, Cisco IOS at enterprise level, and tools such as Cisco Prime, Cisco DNA, Cisco ISE, Cisco SDA.
• Experience using major call management/helpdesk applications.
• Project management experience in ICT projects.
• Proven ability to work under pressure while meeting operational and project targets.

Preferred Qualifications:

• CCNP (R&S)
• CCNP (WIFUND)
• CCNP (Security)
• CWTS/CWNA/CWNP
• ACWA/AWCWP
• ITIL V3 Foundation