Network and Security Engineer

We are seeking a talented and experienced Network and Security Engineer to join our team. The ideal candidate will have a strong background in networking and security, excellent problem-solving skills, and a passion for learning and developing new skills.

Key Responsibilities

• Design, configure and implement highly scalable L2/L3 networks using various protocols and vendor equipment.
• Monitor network traffic and analyse security incidents to detect and respond to threats within mobile network environments.
• Diagnose and troubleshoot network-related issues associated with L1-L7 using a variety of tools, ensuring quick recovery and minimum network downtime.
• Carry out periodic backups of network device operating system and configurations to ensure timely restoration of critical network services.
• Design and implement network security solutions such as policies, IPS, SSLVPN, IPSec VPN and security profiles using next-generation firewalls (FortiGate/Palo Alto).
• Develop and apply network segmentation strategies to strengthen security and safeguard sensitive information within the core network.
• Work closely with other teams to establish and enforce network access policies, ensuring that only authorized individuals and devices have the correct access privileges.

Proactive Security Testing and Vulnerability Management

• Conduct vulnerability assessments and penetration testing to identify and address security weaknesses in mobile network architectures.
• Develop and enforce security policies and procedures to ensure compliance with industry standards and regulations.
• Design and implement security protocols and solutions to protect network infrastructure.
• Work together with system administrators and application owners to resolve discovered vulnerabilities by applying necessary patches or making configuration adjustments.
• Create and sustain a thorough vulnerability management program that includes tracking vulnerabilities, assessing risks, and planning remediation strategies.
• Engage in network security incident response efforts by providing technical expertise and supporting investigations when needed.
• Stay updated with the latest security trends, threats, and technologies, particularly related to 3GPP standards and mobile networks.
• Collaborate with IT and engineering teams to integrate security measures into network architecture, including mobile network elements.
• Respond to security breaches and provide incident response and disaster recovery support.

Qualifications / Skills

• Bachelor’s degree in computer science, information security, or a related field (or equivalent work experience).
• Master’s degree in cybersecurity or networking is desirable.
• Proven experience as a Network and Security Engineer or similar role, with focus on IP network design, implementation, troubleshooting and mobile network security.
• Understanding of 3GPP mobile network core and RAN architectures and security requirements.
• Strong knowledge of network security protocols, VPN, firewall management, and intrusion detection systems.
• Experience with security tools such as SIEM, IDS/IPS, and vulnerability scanners.
• Familiarity with regulatory standards and frameworks (e.g., GDPR, HIPAA, ISO 27001).
• In-depth understanding of routers, switches, firewalls, and switching/routing protocols – such as VLAN, VTP, STP, RSTP, MST, OSPF, EIGRP and BGP.
• Monitoring solutions which include PRTG, SolarWinds and Zabbix, and knowledge of virtualization technologies such as ESXi, KVM, Proxmox and Hyper-V.
• Relevant industry certifications such as CCNA, CCNP, CISSP, CISM, CEH, CompTIA Security+, AZ-500 and GCP PCSE are highly desirable.
• Excellent analytical and problem-solving skills with the ability to troubleshoot complex issues.
• Strong communication skills and the ability to work effectively in a team environment.

This role requires daily physical/onsite reporting in the office.