Senior Network Security Engineer

Rackspace Technology is a leading provider of expertise and managed services across all the major public and private cloud technologies. We’ve evolved Fanatical Support to encompass the entire customer journey — providing Fanatical Experience™ from first consultation to daily operations. Our passionate experts combine the power of proactive, always-on service and expertise with best-in-class tools and automation to deliver technology when and how our customers need it.   We are seeking a highly skilled Senior Network Security Engineer with specialized expertise in firewall technologies, F5 application delivery controllers, and intrusion prevention/detection systems (IPS/IDS). In this role, you will be responsible for designing, implementing, and maintaining enterprise and cloud network security infrastructure to protect against evolving cyber threats. The ideal candidate will bring deep technical knowledge across multiple security platforms, strong incident response capabilities, and the ability to lead the operation of critical environment to ensure network resiliency, compliance, and security.  This role will be permanently on-site with a customer in Riyadh (KSA).  Discover your inner Racker! Responsibilities

Design, implement, and manage enterprise firewall infrastructure including next-generation firewalls (NGFWs), VPN concentrators, and web application firewalls 

Configure, optimize, and maintain F5 application delivery controllers, including load balancing, SSL offloading, and application security modules 

Deploy and manage intrusion prevention/detection systems (IPS/IDS), ensuring proper tuning to minimize false positives while detecting genuine threats 

Develop and implement comprehensive network security architectures with defense-in-depth strategies 

Create and maintain security policies, rulesets, and access control lists across all security platforms 

Conduct regular security audits, vulnerability assessments, and penetration testing to identify and remediate security gaps 

Monitor security events and logs to identify potential security incidents and respond appropriately 

Lead security incident investigations and responses, including root cause analysis and remediation planning 

Establish security monitoring solutions and develop custom alerting for critical security events 

Implement automation and orchestration for security processes to improve efficiency and response times 

Design and implement secure network segmentation strategies to contain potential breaches 

Collaborate with compliance teams to ensure network security controls meet regulatory requirements 

Evaluate emerging security technologies and recommend solutions to address evolving threats 

Provide technical mentorship to junior security engineers and network administrators 

Participate in after-hours on-call rotation for critical security incidents 

Requirements

Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or related field 

8+ years of experience in network or security engineering roles 

Minimum 5+ years of hands-on experience with enterprise firewall platforms (Palo Alto, Fortinet, Cisco, etc.) 

Proven expertise with F5 BIG-IP platforms, including LTM and GTM modules 

Extensive experience configuring and maintaining IPS/IDS systems (Cisco, Palo Alto, Snort, etc.) 

Strong understanding of network protocols, OSI model, and TCP/IP stack 

Experience with micro-segmentation technologies 

In-depth knowledge of common attack vectors and mitigation techniques 

Current industry certifications (CISSP, CCNP Security, F5 Certified, etc.) 

Understanding of compliance frameworks (PCI DSS, HIPAA, SOX, ISO 27001, etc.) 

Experience with security in cloud environments 

Strong analytical and problem-solving abilities 

Excellent communication skills and ability to explain technical concepts to non-technical stakeholders 

Ability to work effectively under pressure during security incidents 

Additional Skills (Good to have)

Experience with zero trust network architecture and implementation 

Proficiency in scripting and automation for security operations (Python, Bash, etc.) 

Knowledge of SOAR (Security Orchestration, Automation and Response) platforms 

Familiarity with container security and Kubernetes environments 

Experience with secure SD-WAN implementations 

Background in DevSecOps practices and tools 

Knowledge of threat intelligence platforms and integration 

Experience with DDoS mitigation techniques and services 

Familiarity with NAC (Network Access Control) solutions 

Understanding of PKI infrastructure and certificate management 

Background in security architecture and framework development