Senior Network Security Analyst

Placements24; Southampton; Hybrid; GBP 54,000 - 67,000; Full time

Benefits offered by this job

Competitive salary & bonus

Health, dental, life insurance

Generous leave & retirement plan

Learning & development opportunities

State-of-the-art security tools

Remote work with occasional office

Job summary

Placements24 is recruiting a Senior Network Security Analyst to safeguard telecommunications network infrastructure. You will lead threat detection, incident response, and security architecture efforts across Randburg-based operations, working with advanced security tools and technologies.

The role requires 5+ years of network security experience, strong analytical skills, and hands-on expertise with firewalls, IDPS, SIEM, and cloud security.

Qualifications

• Bachelor's degree in CS/Cybersecurity or related field.
• Minimum 5 years of experience in network security with focus on analysis and incident response.
• In-depth knowledge of network protocols, security architectures and common attack vectors.
• Hands-on experience with firewalls (Palo Alto, Fortinet), IDS/IPS, SIEM and endpoint security solutions.
• Proficiency in analyzing network traffic with tools like Wireshark.
• Strong understanding of cybersecurity frameworks and compliance requirements.

Responsibilities

• Monitor network traffic and security logs for threats.
• Conduct in-depth analysis of security incidents and perform root cause analysis.
• Develop, implement, and maintain network security policies and standards.
• Configure and manage security tools (firewalls, IDPS, VPNs, SIEM).
• Perform vulnerability assessments and penetration testing to identify weaknesses.
• Design and architect secure network solutions following best practices.
• Lead incident response during breaches and cyberattacks.
• Stay updated on emerging threats and technologies.
• Provide security awareness training to IT staff.
• Collaborate with IT and operations to integrate security into design and deployment.

Skills

Network security

Threat detection

Incident response

Security architectures

Security reporting

Analytical thinking

Education

Bachelor's degree in Computer Science or Cybersecurity

Tools

Palo Alto (firewalls)

Fortinet

IDS/IPS

SIEM (Splunk, QRadar)

Wireshark

Job description

About the Role

Our client, a prominent telecommunications organization, is seeking a highly skilled Senior Network Security Analyst to join their cybersecurity team. This critical role, based out of Randburg, Gauteng , will be responsible for safeguarding the integrity, confidentiality, and availability of the company's network infrastructure and data. You will be at the forefront of threat detection, incident response, and security architecture design, working with advanced security tools and technologies. The ideal candidate possesses a deep understanding of network security principles, threat landscapes, and mitigation strategies. This is an excellent opportunity to make a significant impact on a leading telecommunications provider and contribute to a secure digital environment. Join our client and help protect vital communication networks in Randburg and beyond.

Key Responsibilities

• Monitor network traffic and security logs for suspicious activities and potential threats.
• Conduct in-depth analysis of security incidents, perform root cause analysis, and recommend corrective actions.
• Develop, implement, and maintain network security policies, procedures, and standards.
• Configure and manage security tools, including firewalls, Intrusion Detection/Prevention Systems (IDPS), VPNs, and SIEM platforms.
• Perform vulnerability assessments and penetration testing to identify and remediate security weaknesses.
• Design and architect secure network solutions, ensuring adherence to security best practices.
• Respond to security breaches and cyberattacks, leading incident response efforts.
• Stay current with emerging cybersecurity threats, vulnerabilities, and technologies.
• Provide security awareness training and guidance to other IT staff.
• Collaborate with IT and operational teams to ensure security is integrated into all aspects of network design and deployment.

Requirements

• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or a related field.
• Minimum of 5 years of experience in network security, with a strong focus on analysis and incident response.
• In-depth knowledge of network protocols, security architectures, and common attack vectors.
• Hands-on experience with security technologies such as firewalls (e.g., Palo Alto, Fortinet), IDS/IPS, SIEM (e.g., Splunk, QRadar), and endpoint security solutions.
• Proficiency in analyzing network traffic using tools like Wireshark.
• Strong understanding of cybersecurity frameworks and compliance regulations.
• Excellent analytical, problem-solving, and critical thinking skills.
• Strong communication and reporting skills, with the ability to articulate complex security issues clearly.
• Relevant security certifications such as CISSP, CEH, GIAC, or CCSP are highly preferred.
• Experience with cloud security (AWS, Azure) is a plus.

Benefits

• Highly competitive salary and bonus structure.
• Comprehensive health, dental, and life insurance coverage.
• Generous paid time off and retirement savings plan.
• Opportunities for continuous learning and professional development in cybersecurity.
• Access to state-of-the-art security tools and technologies.
• Remote work flexibility with occasional office presence required.
• Be part of a critical team protecting a major telecommunications network in Randburg, Gauteng .
• Career growth opportunities within a leading industry player.