Senior Network Specialist

M42 Ltd.; Abu Dhabi; On-site; AED 300,000 - 520,000; Full time

Job summary

M42 Ltd. is seeking a Senior Network & Security Engineer/Architect to design, implement and optimize enterprise networks across on‑prem and cloud environments in Abu Dhabi.

You will lead wireless design (Aruba, Cisco), deploy next‑gen firewalls (FortiGate, Palo Alto), and drive Zero Trust, DNS, WAFs, and cloud connectivity initiatives. You will act as a technical leader, mentor engineers, and coordinate across security, cloud, and application teams to ensure robust, scalable, and secure

Qualifications

• Extensive hands-on experience with enterprise networking and security technologies.
• Expert in Aruba wireless ecosystem and large-scale deployments.
• Deep Fortinet FortiGate and Palo Alto security expertise.
• Experience with F5 load balancers and WAFs.
• Zero Trust architecture and micro-segmentation expertise.
• End-to-end Azure networking and ExpressRoute experience.
• Zscaler ZIA and ZPA deployments knowledge.
• Automation with Python and Ansible for network ops.
• Leadership and mentoring of junior engineers.

Responsibilities

• Design and deliver scalable, secure network solutions across campus, branch, and cloud environments.
• Lead enterprise wireless design and operations using Aruba and Cisco platforms.
• Implement security solutions including next-generation firewalls, Zero Trust, DNS, WAFs, load balancers, and proxy solutions.
• Support hybrid connectivity between on-prem and Azure.
• Act as a Level 3 escalation point, leading root cause analysis and preventive actions.
• Define network standards, documentation, and governance.
• Automate network operations using Python, APIs, and Ansible.
• Collaborate with security, cloud, and application teams, mentor junior engineers.
• Architect and support Azure networking including VNets, subnets, peering, NSGs, UDRs, Azure Firewall, Application Gateway, VPN Gateway, and ExpressRoute.

Skills

Aruba wireless

Fortinet FortiGate

Palo Alto

F5 BIG-IP

Azure networking

Zero Trust

Network design

Python

Ansible

Team leadership

Education

Bachelor's degree in Computer Science or related field

Professional certifications (Aruba ACMP/ACCP/ACDX; Fortinet NSE 4/7; Palo Alto PCNSE; Microsoft AZ-104/AZ-700; F5 301/303)

Tools

Aruba Central

AirWave

Palo Alto Panorama

FortiGate management

F5 BIG-IP

Zscaler ZIA/ZPA

Ansible

Job description

Overview

M42 delivers comprehensive healthcare services across the full continuum of care; from primary care to advanced specialty treatments. Leveraging cutting-edge health technologies and precision medicine, we ensure the highest standards of effectiveness, efficiency, and patient-centered outcomes. With a global presence spanning more than 480 facilities in 27 countries and a dedicated workforce of over 20,000 professionals, M42 is uniquely positioned to redefine the future of healthcare on a global scale.

We are looking for a highly experienced Senior Network & Security Engineer/Architect with deep expertise in enterprise wireless, next-generation security platforms, and cloud networking. This role requires strong architectural capabilities, hands‑on troubleshooting skills, and the ability to lead complex deployments across on‑prem and cloud environments. The ideal candidate will act as a technical leader, driving design standards, ensuring security best practices, and supporting large-scale enterprise infrastructure with a focus on multi‑vendor networking, and cloud‑integrated security solutions.

Responsibilities

• Senior Network Engineer role with strong implementation and operational experience, capable of managing high‑priority incidents and complex network and security architectures.
• Periodic on‑call/standby support outside office hours and on weekends (approximately once per month).
• Design and deliver scalable, secure, and high‑performance network solutions across campus, branch, and cloud environments.
• Lead enterprise wireless design and operations using Aruba and Cisco platforms.
• Design, implement, and support security solutions including next‑generation firewalls, Zero Trust, secure access, DNS, WAFs, load balancers, and proxy solutions.
• Design and support hybrid connectivity between on‑premises networks and Microsoft Azure.
• Act as a Level 3 escalation point, leading root cause analysis and preventive actions.
• Define network standards, documentation, and governance.
• Automate network operations using tools such as Python, APIs, and Ansible (preferred).
• Collaborate with security, cloud, and application teams, mentor junior engineers, and participate in change management, capacity planning, security audits, upgrades, and EoL hardware refreshes.
• Architect and support Azure networking including VNets, subnetting, peering, NSGs, UDRs, Azure Firewall, Application Gateway, VPN Gateway, and ExpressRoute.

Qualifications

• Advanced hands‑on experience with enterprise networking and security technologies.
• Strong expertise in the Aruba wireless ecosystem (Central, CPPM, AirWave, Controllers, IAP), including RF fundamentals and large‑scale enterprise wireless deployments.
• Advanced operational experience with next‑generation firewalls, including FortiGate (advanced features, SD‑WAN, security profiles) and Palo Alto (App‑ID, Threat Prevention, WildFire, Panorama, GlobalProtect, IPSec).
• Strong hands‑on knowledge of F5 architectures, including load balancers, HTTP profiles, LTM policies, SSL, WAF, DDoS protection, brute‑force mitigation, and OWASP Top 10.
• Deep understanding of Zero Trust architecture, network segmentation and micro‑segmentation, and threat detection and mitigation.
• End‑to‑end deployment experience with Zscaler ZIA and ZPA, including traffic forwarding, authentication, and policy control.
• Expert knowledge of Layer 2 / Layer 3 protocols and enterprise network design.
• Strong expertise in Microsoft Azure networking, hybrid architectures, and cloud security/connectivity models.
• Experience with software upgrades and end‑of‑life (EoL) hardware refreshes.
• Knowledge of DNS, SSO, and identity services is a plus.
• Preferred certifications: Aruba ACMP/ACCP/ACDX, Fortinet NSE 4/7, Palo Alto PCNSE, Microsoft AZ‑104/AZ‑700, F5 301/303.