Technical Security Specialist

AE01 Dimension Data Middle East LLC; Abu Dhabi; Ibrido; AED 480.000 - 720.000; Tempo pieno

Descrizione del lavoro

NTT DATA in the United Arab Emirates is seeking a Technical Security Specialist to design, implement, and support enterprise networking and security solutions. You will work across Cisco, Palo Alto, Fortinet and F5 technologies, lead deployments, and engage clients onsite and remotely.

The role requires advanced hands‑on skills, leadership, and the ability to mentor engineers while delivering designs, migrations and governance aligned with customer needs.

Competenze

• Bachelor's degree in Information Technology, Computer Science, Electronics, Telecommunications or related field.
• Mandatory: At least one professional-level certification from a major technology vendor.
• CCNP/CCIE or equivalent certifications are preferred.
• 7–10+ years of hands-on experience in enterprise networking and network security.

Mansioni

• Design, implement, configure and support enterprise network and security solutions across Cisco, Palo Alto, Fortinet and F5 technologies.
• Lead installations, migrations, upgrades and lifecycle management for LAN, WAN, SD‑WAN, data centre, internet edge and security infrastructure.
• Configure and troubleshoot Cisco routing and switching, ACI and SD‑WAN; Palo Alto and Fortinet firewalls; and F5 BIG‑IP LTM/GTM/ASM/WAF.
• Collaborate with clients onsite and remotely to gather requirements and resolve technical issues.
• Perform firewall policy reviews, security hardening, VPN and NAT configuration, health checks and capacity planning.
• Investigate and resolve critical network, security and application delivery incidents, coordinating vendor escalations.
• Produce high‑level and low‑level designs, implementation and migration plans, and operational documentation.
• Support high‑availability and disaster recovery designs, ensuring solutions meet security and governance requirements.
• Mentor junior engineers and contribute to technical workshops and presales discussions.

Conoscenze

TCP/IP knowledge

Routing & Switching

Firewall expertise

VLAN/SD-WAN

Customer engagement

Formazione

Bachelor’s degree in IT / related field

Strumenti

Cisco equipment

Palo Alto

Fortinet

F5 BIG-IP

ACI

Descrizione del lavoro

Make an impact with NTT DATA Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA

The Technical Security Specialist designs, implements and supports enterprise networking and security solutions for clients. This role combines hands‑on expertise across Cisco, Palo Alto, Fortinet and F5 technologies with technical leadership, customer engagement and ownership of complex deployments and escalations.

Key responsibilities:

• Design, implement, configure and support enterprise network and security solutions across Cisco, Palo Alto, Fortinet and F5 technologies.
• Lead installations, migrations, upgrades and lifecycle management for LAN, WAN, SD‑WAN, data centre, internet edge and security infrastructure.
• Configure and troubleshoot Cisco routing and switching, ACI and SD‑WAN; Palo Alto and Fortinet firewalls; and F5 BIG‑IP application delivery and security solutions.
• Work with clients onsite and remotely to gather requirements, resolve technical issues and deliver solutions.
• Perform firewall policy reviews, security hardening, VPN and NAT configuration, health checks and capacity planning.
• Investigate and resolve critical network, security and application delivery incidents, coordinating vendor escalations where required.
• Produce high‑level and low‑level designs, implementation and migration plans, and operational documentation.
• Support high‑availability and disaster recovery designs, ensuring solutions meet customer security and governance requirements.
• Mentor junior engineers, contribute to technical workshops and presales discussions, and act as the escalation point for assigned technologies.

To thrive in this role, you need to have:

• Strong knowledge of TCP/IP, routing and switching, including OSPF, BGP, EIGRP, MPLS, VRF, VXLAN, STP, HSRP/VRRP and multicast.
• Hands‑on experience with Cisco Catalyst, Nexus, ISR, ASR, wireless, DNA Center, ACI and SD‑WAN technologies.
• Advanced knowledge of next‑generation firewalls, IPS/IDS, IPsec and SSL VPNs, network access control, secure web gateways, Zero Trust, web application firewalls and DDoS protection.
• Experience configuring and troubleshooting Palo Alto PAN‑OS, Fortinet FortiGate, FortiManager and FortiAnalyzer, and Cisco Firepower.
• Experience deploying and managing F5 BIG‑IP LTM, GTM/DNS, APM and ASM/WAF, including load balancing, SSL offloading, certificate management and application traffic troubleshooting.
• Strong customer engagement, technical documentation, problem‑solving and communication skills, with the ability to lead workshops and mentor engineers.

Academic qualifications and certifications:

Must have a Bachelor’s degree in Information Technology, Computer Science, Electronics, Telecommunications or a related field.

Mandatory: At least one professional‑level certification from a major technology vendor.

Preferred certifications: CCNP Enterprise, CCNP Security, CCIE Enterprise Infrastructure or Security; PCNSA or PCNSE; FCP or FCSS Network Security; F5 Certified BIG‑IP Administrator, Technology Specialist or Solution Expert. CISSP, CISM, CEH, Security+ and ITIL Foundation are advantageous.

Required experience:

• 7–10+ years of hands‑on experience in enterprise networking and network security.
• At least five years of implementation and operational experience with Cisco networking technologies.
• At least five years of experience managing Palo Alto NGFW environments and five years supporting Fortinet Security Fabric and FortiGate deployments.
• Three to five years of experience with F5 BIG‑IP load balancers and WAF solutions.
• Proven delivery of complex network transformation, migration and security projects, ideally within a large enterprise, government, telecom, financial services, managed services or systems integration environment.
• Strong troubleshooting experience across routing and switching, firewalls, VPNs, SD‑WAN, load balancers and application delivery.
• Experience managing customer stakeholders and technical escalations, preparing implementation documentation, leading knowledge‑transfer sessions and mentoring engineers.

Workplace type: Hybrid Working

About NTT DATA

NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise‑scale AI, cloud, security, connectivity, data centres and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 70 countries. We also offer clients access to a robust ecosystem of innovation centres as well as established and start‑up partners. NTT DATA is part of NTT Group, which invests over $3billion each year in R&D.

Equal Opportunity Employer

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category.

Join our growing global team and accelerate your career with us.

Is innovation part of your DNA? Do you want to enable a connected future for people, organizations, and society? Join our growing global NTT family and you’ll be part of the world’s largest ICT company (by revenue). We’ve combined the capabilities of 28 remarkable companies to become one, leading technology services provider. Together, we help our people, clients, and communities do great things with technology to create a more secure and connected future. We employ 40,000 people across 57 countries. By bringing together the world’s best technology companies and emerging innovators, we work together to deliver sustainable outcomes to businesses and the world. Innovation is part of our DNA. We believe it’s key to what makes us different. So, we strive to move forward, challenge the status quo, and drive excellence through the technologies we integrate and the services we deliver around the world. The result is connected cities, connected factories, connected healthcare, connected agriculture, connected conservation, connected mobility, and connected sport. Together we enable the connected future. You’ll be joining a global employer that is committed to attracting, growing and keeping the best talent. A place where you will be at the heart of our success!