NETWORK & SECURITY ENGINEER

• Proactively scopes the technical solution required to address customer requirements, assesses customers’ met and unmet needs, and recommends solutions that optimise value for both the customer and the firm.
  
• Oversee and execute planned enterprise network and security infrastructure maintenance activity while minimising impact to services.
  
• Provide technical leadership on operational and project-related work. Design and implement plans to introduce new technology into the security and enterprise networks while minimising network outages and ensuring a seamless end-user experience.
  
• Conduct thorough analysis of service results and respond to any escalated service-delivery issues in a timely manner.
  
• Design solutions and create implementation and support models for technology encompassing a specific specialisation or platform.
  
• Configure, install, support, and troubleshoot security and enterprise network equipment.
  
• Work effectively with other IS teams and outsourcing providers to ensure technology solutions are effectively managed and delivered.
  
• Review reports to ensure all services are completely and successfully delivered. Proactively intervene to correct problems when encountered and use metrics to improve processes.
  
• Assist in developing network security and enterprise network operational processes, procedures, and documentation.
  
• Develop and maintain strong relationships with internal and external stakeholders to ensure optimal service delivery in the customer environment.
  
• Establish customer environments by designing system configurations, directing system installation, and defining, documenting, and enforcing industry standards.
  
• Analyse existing network security and enterprise network infrastructure and recommend solutions for optimal performance of customer network and security infrastructure.
  
• Develop architecture plans for network security and enterprise network solutions and deployments.
  
• Deploy enterprise network security solutions, including multi-vendor firewalls, network access control devices, and endpoint security solutions.
  
• Support and maintain customer network and security infrastructure, including routers, switches, firewalls, network access control, and endpoint security solutions.
  
• Provide Level 2 and Level 3 escalation support for critical incidents.
  
• Own the end-to-end delivery of network and security solutions, including requirements validation, high-level and low-level design, implementation, testing, acceptance, handover, and post-implementation support.
  
• Design, configure, and support LAN, WAN, WLAN, SD-WAN, VPN, data-centre, internet edge, voice, and cloud network solutions in line with approved architecture, security standards, and customer requirements.
  
• Administer routers, switches, wireless controllers, firewalls, load balancers, network access control, secure remote-access platforms, and associated services.
  
• Develop and enforce network and security standards covering segmentation, access control, device hardening, patching, privileged access, encryption, logging, and secure configuration baselines.
  
• Monitor availability, capacity, latency, traffic, configuration compliance, vulnerabilities, and security events; analyse trends and implement preventive improvements.
  
• Lead diagnosis and resolution of complex connectivity, performance, routing, switching, wireless, security, voice, server, and cloud incidents within agreed service levels, with clear escalation and stakeholder updates.
  
• Plan and execute upgrades, migrations, deployments, maintenance, and changes using documented impact assessments, test plans, approvals, rollback procedures, and post-change reviews.
  
• Conduct vulnerability reviews and security assessments; prioritise remediation and support incident containment, investigation, recovery, root-cause analysis, and lessons learned.
  
• Maintain infrastructure resilience through redundancy, configuration backup, disaster-recovery readiness, failover validation, and periodic recovery testing.
  
• Maintain accurate network diagrams, asset and licence inventories, configurations, standards, implementation records, test results, change records, operating procedures, and knowledge articles after every deployment or change.
  
• Provide technical leadership and quality assurance to assigned engineers through work planning, peer review, coaching, escalation support, skills transfer, and adherence to engineering standards.
  
• Collaborate with project management, sales, and presales teams on discovery, solution architecture, bills of materials, effort estimation, proposals, demonstrations, and proof-of-value engagements.
  
• Manage technical relationships with customers, vendors, OEMs, carriers, and service providers, ensuring effective escalation, service reviews, and timely issue resolution.
  
• Support audits, compliance reviews, capacity planning, lifecycle management, warranty and licence tracking, technology evaluations, and continuous service improvement.
  
• Prepare periodic operational reports covering availability, incidents, service levels, security posture, capacity, risks, changes, vulnerabilities, and agreed improvement actions.
  
• Identify opportunities to automate monitoring, configuration, reporting, and routine operational tasks to improve consistency, speed, and control.
  
• Participate in on-call support and planned out-of-hours maintenance when required, following established escalation and communication procedures.
  

• Advanced knowledge of TCP/IP, IPv4/IPv6, VLANs, STP, QoS, NAT, DNS, DHCP, SNMP, AAA, network telemetry, and enterprise monitoring.
  
• Strong knowledge of routing and switching technologies, including OSPF, EIGRP, IS-IS, BGP, MPLS, HSRP, GLBP, VRRP, VSS, and vPC.
  
• Hands-on experience with next-generation firewalls, IDS/IPS, VPNs, web filtering, network access control, identity-based access, endpoint integration, and secure segmentation.
  
• Working knowledge of Windows and Linux administration, virtualisation, Microsoft Azure networking, hybrid-cloud connectivity, backup, and disaster recovery.
  
• Ability to interpret logs, packet captures, alerts, vulnerability findings, and performance data to diagnose root causes and recommend sustainable corrective actions.
  
• Working knowledge of IT service management, change control, incident and problem management, configuration management, and service-level reporting.
  
• Familiarity with infrastructure automation and scripting tools is an advantage.
  
• Strong analytical, troubleshooting, documentation, communication, stakeholder-management, leadership, and customer-service skills.
  
• Ability to manage competing priorities, work independently, lead technical engagements, and communicate complex issues clearly to technical and non-technical audiences.
  
  

Requirements

• A relevant master’s degree is an advantage.
  
• CCNP certification is mandatory.
  
• Relevant security, cloud, or vendor certifications—such as Fortinet, HPE Aruba Networking, Microsoft Azure, or equivalent—are an advantage.
  
• Membership of a relevant professional body is an advantage.
  

• Minimum of four years’ relevant experience in enterprise networking, cybersecurity, systems infrastructure, cloud connectivity, or telecommunications.
  
• Demonstrated experience delivering complex network or security projects from design through handover and support.
  
• Experience supporting business-critical environments and resolving high-severity incidents.
  
• Experience coordinating engineers, vendors, and customer stakeholders is preferred.
  
• Willingness to participate in on-call support, planned out-of-hours work, and travel to customer sites when required.
  
  

Benefits