Senior Network Security Analyst

Placements24; Vereeniging; Hybrid; ZAR 700,000 - 1,200,000; Full time

Benefits offered by this job

Health insurance

Retirement plan

Performance bonuses

Professional development

Job summary

Placements24 in Vereeniging, Gauteng seeks a Senior Network Security Analyst to design, implement, and manage security solutions for critical infrastructure. You will conduct threat analysis and respond to incidents, collaborating with IT and security teams to safeguard data.

The ideal candidate has 6+ years in network security, expertise in firewalls, IDS/IPS, VPNs, SIEM, and strong knowledge of TCP/IP. ISO/NIST familiarity and relevant certs are highly desirable.

Qualifications

• Bachelor's degree required in CS or InfoSec.
• 6+ years in network security analysis/operations.
• Expertise with firewalls, IDS/IPS, VPN tech.
• Strong knowledge of TCP/IP and network protocols.
• Experience with SIEM tools (Splunk, QRadar).
• Familiarity with ISO 27001, NIST frameworks.
• Certs: CISSP/CEH/GIAC desirable.

Responsibilities

• Design, implement, and maintain network security infrastructure (firewalls, IDS/IPS, VPNs, SIEM).
• Monitor traffic for breaches, vulnerabilities, and anomalies.
• Conduct vulnerability assessments and penetration tests.
• Develop and refine security policies and incident response plans.
• Investigate and remediate incidents with post-incident analysis.
• Stay updated on threats and technologies.

Skills

Firewall management

IDS/IPS

VPN technologies

SIEM systems

Threat analysis

TCP/IP & networks

Security frameworks

Security certifications

Education

Bachelor's degree in Computer Science or Information Security

Tools

Splunk

QRadar

Job description

About the Role

Our client, a major player in the telecommunications industry, is seeking a highly skilled and experienced Senior Network Security Analyst to bolster their cybersecurity efforts in Vereeniging, Gauteng . This role is central to protecting our client’s critical network infrastructure and sensitive data from evolving cyber threats. You will be responsible for designing, implementing, and managing security solutions, conducting threat analysis, and responding to security incidents. The ideal candidate possesses a deep understanding of network security principles, advanced threat detection techniques, and security best practices. This is a significant opportunity to contribute to the security posture of a leading telecommunications company and advance your career in a challenging and rewarding field. We are looking for a proactive, detail-oriented individual with a passion for cybersecurity and a commitment to safeguarding digital assets. The role demands both strategic thinking and hands-on technical proficiency. We offer a stimulating work environment and competitive compensation.

Key Responsibilities

• Design, implement, and maintain network security infrastructure, including firewalls, IDS/IPS, VPNs, and SIEM systems.
• Monitor network traffic and systems for security breaches, vulnerabilities, and suspicious activities.
• Conduct regular security assessments, vulnerability scans, and penetration tests.
• Develop and refine security policies, procedures, and incident response plans.
• Investigate and remediate security incidents, providing detailed post-incident analysis.
• Stay up-to-date with the latest cybersecurity threats, trends, and technologies.
• Provide technical expertise and guidance on security best practices to IT and network teams.
• Collaborate with other departments to ensure security is integrated into all aspects of IT operations.
• Manage security awareness training programs for employees.
• Ensure compliance with relevant data protection regulations and industry standards.

Requirements

• Bachelor’s degree in Computer Science, Information Security, or a related field.
• Minimum of 6 years of experience in network security analysis and operations.
• Proven expertise in firewall management, intrusion detection/prevention systems, and VPN technologies.
• Strong understanding of TCP/IP, network protocols, and common attack vectors.
• Experience with SIEM tools (e.g., Splunk, QRadar) and security monitoring.
• Knowledge of security frameworks (e.g., ISO 27001, NIST).
• Relevant security certifications such as CISSP, CEH, or GIAC are highly desirable.
• Excellent analytical and problem-solving skills.
• Strong communication and reporting skills.
• Ability to work effectively both independently and as part of a team.

Benefits

Our client offers a competitive salary, comprehensive health insurance, a retirement savings plan, performance bonuses, and excellent opportunities for professional development and certifications. Employees will benefit from working remotely with occasional visits to the Vereeniging office, contributing to critical security initiatives, and being part of a forward-thinking organization that prioritizes cybersecurity. We also provide access to cutting-edge security tools and technologies.