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L3 F5 Application Security Engineer (9x5 Support) (m/f/d)
Permanent
Riyadh, Saudi Arabia
30.07.2025
Job Title:
L3 F5 Application Security Engineer (9x5 Support)
Job Summary:
The L3 F5 Application Security Engineer is responsible for delivering expert-level support for F5 Access Policy Manager, F5 Web Application Firewall, and Infoblox DNS Security solutions. This role provides 9x5 support and acts as the escalation point for critical issues, ensuring the integrity, performance, and security of application delivery and DNS environments. The ideal candidate will leverage deep technical expertise to troubleshoot and resolve complex security incidents while collaborating with cross-functional teams to enhance overall system resilience and security posture.
Key Responsibilities:
Required Qualifications:
Desired Skills & Certifications:
Working Conditions:
Halian Group:
With over 28 years of experience, we have come to understand that innovation is the only way to provide agile, practical solutions that transform businesses and careers.
Our resourcing and smart services help you to realize tomorrow’s potential. Discover the amazing things possible when you bring the right people and the right technologies together.
At Halian, we recognize that diversity, equity, and inclusion (DEI) are essential to building high-performing teams for our clients. We are committed to connecting organizations with top talent from all backgrounds, ensuring that every individual feels valued, respected, and empowered to contribute their unique perspectives. We encourage applications from all qualified candidates, regardless of race, gender, disability, or any other characteristic that makes them unique. By fostering diverse and inclusive workplaces, we help our clients drive innovation, enhance collaboration, and better reflect the communities they serve.
#LI-CA1
L3 F5 Application Security Engineer (9x5 Support)
The L3 F5 Application Security Engineer is responsible for delivering expert-level support for F5 Access Policy Manager, F5 Web Application Firewall, and Infoblox DNS Security solutions. This role provides 9x5 support and acts as the escalation point for critical issues, ensuring the integrity, performance, and security of application delivery and DNS environments. The ideal candidate will leverage deep technical expertise to troubleshoot and resolve complex security incidents while collaborating with cross-functional teams to enhance overall system resilience and security posture.
- Technical Support & Incident Management:
- Provide expert-level 9x5 support for F5 Access Policy Manager, F5 Web Application Firewall, and Infoblox DNS Security environments.
- Serve as the L3 escalation point for critical incidents escalated from L1/L2 teams, ensuring timely and effective resolution.
- Perform root cause analysis on incidents, document findings, and recommend preventive measures.
- System Configuration & Maintenance:
- Configure, monitor, and maintain F5 security devices to optimize performance and security.
- Implement and manage policies, rules, and configurations for Access Policy Manager and Web Application Firewall.
- Apply patches, updates, and upgrades in accordance with best practices and organizational policies.
- DNS Security & Infoblox Management:
- Configure, monitor, and manage Infoblox DNS Security solutions to safeguard the DNS infrastructure.
- Implement and enforce DNS security policies, ensuring compliance with industry standards.
- Troubleshoot DNS security incidents and collaborate with network teams to ensure robust and secure DNS operations.
- Security & Compliance:
- Ensure adherence to security policies, industry standards, and compliance requirements across all managed platforms.
- Collaborate with security teams to conduct vulnerability assessments and security audits.
- Develop and enforce security best practices to mitigate risks and enhance the overall security posture.
- Collaboration & Documentation:
- Work closely with network, application, and infrastructure teams to troubleshoot and resolve cross-functional issues.
- Create and maintain detailed documentation on configurations, processes, and incident resolutions for F5 and Infoblox solutions.
- Provide training and knowledge transfer sessions to support teams to elevate overall operational competency.
- Bachelor’s degree in Computer Science, Information Technology, or a related field.
- Minimum of 5 years’ experience in network and application security, with a strong focus on F5 technologies and DNS security.
- Proven expertise in managing and troubleshooting F5 Access Policy Manager and F5 Web Application Firewall solutions.
- Experience with Infoblox DNS Security solutions and best practices.
- Solid understanding of networking protocols (TCP/IP, HTTP/HTTPS, DNS, etc.) and security protocols (SSL, TLS).
- Experience in incident response, system monitoring, and performance tuning within high-availability environments.
- Strong analytical, troubleshooting, and problem-solving skills.
- Excellent communication and interpersonal abilities to effectively collaborate with technical and non-technical stakeholders.
- Ability to work in a fast-paced, dynamic environment while managing multiple priorities.
- Relevant F5 certifications (e.g., F5 Certified Administrator, F5 Certified Technology Specialist) are highly desirable.
- Familiarity with Infoblox certifications or training, change management, ITIL processes, and documentation best practices.
- Provide 9x5 support, with the expectation of occasional on-call responsibilities.
- Work in a collaborative team environment, interacting with various IT and security teams.
- Maintain a high degree of flexibility to address evolving business needs and urgent security incidents.
Halian Group:
With over 28 years of experience, we have come to understand that innovation is the only way to provide agile, practical solutions that transform businesses and careers.
Our resourcing and smart services help you to realize tomorrow’s potential. Discover the amazing things possible when you bring the right people and the right technologies together.
At Halian, we recognize that diversity, equity, and inclusion (DEI) are essential to building high-performing teams for our clients. We are committed to connecting organizations with top talent from all backgrounds, ensuring that every individual feels valued, respected, and empowered to contribute their unique perspectives. We encourage applications from all qualified candidates, regardless of race, gender, disability, or any other characteristic that makes them unique. By fostering diverse and inclusive workplaces, we help our clients drive innovation, enhance collaboration, and better reflect the communities they serve.
#LI-CA1