Cyber Security Specialist

4 weeks ago

Johannesburg, South Africa Optimal Growth Technologies Full time

Overview Job title: Cyber Security Specialist : Networks Job Location: Gauteng, Johannesburg Deadline: December 01, 2025 Role purpose Lead the development and implementation of advanced cyber security capabilities and controls across companies mobile, fixed, satellite, cloud, and IoT networks to protect against evolving threats. Oversee risk assessments, stakeholder engagement, and project delivery in alignment with regulatory requirements. Provide leadership and mentorship to junior team members, fostering innovation and ensuring effective execution of security controls. Key accountabilities Lead Security Implementation Drive the design and execution of cyber security implementations for mobile, fixed, satellite, cloud, and IoT networks, ensuring resilience against sophisticated threats. Direct Workstream Delivery Manage the end-to-end delivery of key security initiatives for Enterprise domains Enterprise CPE, Core Network, Network Management Systems, Office Connectivity, Cyber Security Controls - Monitoring & Analytics, and Measurement & Assurance covering scope definition, design, deployment, and performance review to prevent lateral attack movement. Cyber Risk and Compliance Management Conduct targeted risk assessments and apply security controls to address vulnerabilities across network infrastructure, maintaining compliance with ISO 27001, NIST, and applicable regulatory frameworks. Core competencies, knowledge, and experience Matric / Grade 12 essential 3 year DegreeRelevant tertiary qualification in Information technology 8+ years of experience in Cyber Security role where you meet business deliverables for Enterprise / IP Networks Strong understanding of cyber risk management and security frameworks, such as NIST, ISO 27001, and CIS Controls. Strong knowledge of Enterprise / Fixed networks Excellent problem-solving skills, with the ability to identify and analyse complex issues Strong communication skills, both written and verbal Ability to work collaboratively with cross functional teams and stakeholders Strong leadership skills, with the ability to lead and manage teams effectively Strong organizational skills, with the ability to manage multiple tasks and priorities Monitoring and Assurance Enhancement Implement sustainable processes for near real-time threat detection and continuous security posture assessment, integrating monitoring tools such as SIEM and NetFlow, and ensuring second-line assurance to validate control effectiveness. Leadership and Capability Development Provide guidance and mentorship to junior cyber security professionals, fostering a culture of innovation, collaboration, and excellence to ensure effective security control execution in line with strategic and operational goals. Desired An industry certification e.g. ISO 27001 Lead practitioner, CCIE(Security), CCSP CGEIT, CRISC, CISA, CISM and CISSP / CSSP is strongly preferred ICT jobs #J-18808-Ljbffr

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