NETWORK & SECURITY ENGINEER

The Network & Security Engineer designs, implements, secures, operates, and continuously improves enterprise network, cybersecurity, voice, server, and cloud infrastructure across customer and internal environments. The role owns technical delivery from discovery and detailed design through deployment, testing, handover, support, and optimisation. It ensures resilient connectivity, defence-in-depth security, regulatory and standards compliance, high availability, capacity, and performance. The engineer leads complex implementations and incident resolution, maintains accurate technical and operational records, contributes to presales and service improvement, and provides technical guidance to engineers while working closely with customers, cross-functional teams, vendors, OEMs, and service providers.

Key Roles & Responsibilities

• 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.

Technical and behavioural competencies

• 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

Academic qualifications

Bachelor’s degree in Computer Science, Information Technology, Electrical/Electronic Engineering, Telecommunications, Cybersecurity, or a related discipline.

Professional qualifications

• 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.

Experience and other requirements

• 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

We aim to offer a rewarding employee experience that reflects what today’s technology professionals value most: competitive rewards, flexibility, career growth, wellbeing, meaningful work, and a supportive culture. The final package may include the following, subject to company policy and confirmation:

• Competitive compensation: A market-aligned salary, performance recognition, and any applicable bonus or incentive arrangements.

• Flexible working: Hybrid or flexible working arrangements, where business and customer requirements permit.

• Health and wellbeing: Medical coverage and access to wellbeing support for eligible employees and, where applicable, their dependants.

• Learning and certifications: Access to technical training, mentoring, learning resources, and support for relevant professional certifications.

• Career development: Opportunities to work across multiple database platforms, cloud technologies, customer environments, and transformation programmes, with clear avenues for professional growth.

• Retirement and statutory benefits: Pension and other applicable statutory benefits in line with local requirements and company policy.

• Meaningful and visible work: The opportunity to design resilient data platforms, solve complex customer challenges, and influence the development of database services.

• Inclusive team culture: A collaborative environment that values knowledge sharing, diverse perspectives, recognition, and employee contribution.