{"id":4342133,"url":"https://alion.io/job/network-recruitment-network-and-security-engineer","title":"Network and Security Engineer","company":{"id":4496313,"name":"Network Recruitment","domain":"networkrecruitmentinternational.com","url":"https://alion.io/company/network-recruitment","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":{"grade":"A","score":100,"open_postings":9,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-11-15T07:52:55Z"}},"role":"Security","role_family":"Security","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Johannesburg, South 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across the environment.\nDuties & Responsibilities\nThis is a technical role suited to someone who enjoys working across networking, firewalls, infrastructure security and modern security technologies, while also being comfortable troubleshooting issues, investigating risks and implementing practical solutions.\n\nKey Responsibilities\n\nManage and troubleshoot FortiGate/FortiOS firewalls, including policies, NAT, VPNs, routing and segmentation.\n\nManage HP and Sophos switching environments, including VLANs, trunks, routing and network troubleshooting.\n\nImplement and maintain network segmentation and security controls.\n\nSupport and improve Privileged Access Management (PAM) and administrative access controls.\n\nManage and enhance EDR/XDR capabilities, including threat detection, investigation and response.\n\nOwn or support Vulnerability Management, including scanning, assessment, prioritisation and remediation tracking.\n\nManage secrets and certificate management, including service accounts, API keys, credentials and certificates.\n\nSupport container and Kubernetes security, including image vulnerabilities, secrets, RBAC, service accounts and runtime security principles.\n\nReview firewall rules, privileged access and infrastructure configurations to identify security risks.\n\nAssist with security incidents, technical investigations and remediation.\n\nSupport disaster recovery, backup and infrastructure resilience testing from a network and security perspective.\n\nImplement and support Zero Trust Network Access (ZTNA) and identity- and device-based access controls.\n\nMaintain accurate network diagrams, IP/VLAN information, firewall documentation and security procedures.\n\nCollaborate with infrastructure, application and development teams to ensure security is incorporated into new deployments.\n\nTechnical Requirements\nStrong practical experience with:\nNetworking: TCP/IP, VLANs, Routing, Switching, VPNs, NAT, DNS, DHCP\nFirewalls: FortiGate, FortiOS\nSwitching: HP, Sophos\nSecurity: PAM, EDR/XDR, Vulnerability Management, Secrets Management, Certificate Management, Network Segmentation, Security Hardening, Zero Trust\nModern Infrastructure: Container Security, Kubernetes Security Principles\n\nAdvantageous\n\nNutanix AHV\n\nPrism Central\n\nNutanix Flow\n\nHyper-V\n\nNutanix Move\n\nHyper-V to Nutanix migrations\n\nDisaster Recovery environments\n\nApply now!\n\nFor more exciting IT vacancies, please visit: www.networkrecruitmentinternational.com\n\nIf you have not had any response in two weeks, please consider the vacancy application unsuccessful.\n\nFor more information contact:\nRaees Sadek\nIT Recruitment\nResearcher\n[…]\nPackage & 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