Senior Cloud, Network & Security Engineer

alkalma Healthcare; Al Muntazah; In loco; AED 320.000 - 520.000; Tempo pieno

Descrizione del lavoro

alkalma Healthcare is seeking an experienced Senior Network and Cloud Security Engineer in Abu Dhabi to implement, secure, and troubleshoot the organisation’s multi-cloud infrastructure across all sites. You will manage Aruba, Fortinet, and Meraki platforms, coordinate SOC activities, and support security audits while safeguarding Azure, AWS, and other cloud workloads.

The role emphasizes NAC deployment, IP telephony security, and privileged access controls, with healthcare-sector experience

Competenze

• 5–8 years of relevant experience spanning network infrastructure, network security, and cloud security.
• Hands-on experience with HPE, Fortinet, and Cisco, including switching and enterprise Wi‑Fi.
• Practical experience implementing, administering, and troubleshooting NAC solutions.
• Strong Azure security expertise and experience securing additional cloud platforms.
• Knowledge of IP telephony, VoIP, SIP, and voice-network troubleshooting.
• Experience with SOC coordination, incident response, vulnerability management, and security audits.
• Certifications in HPE/Aruba, Fortinet, Cisco, or cloud security are preferred; healthcare-sector experience is a plus.
• Healthcare-sector experience is an advantage.

Mansioni

• Manage HPE Aruba, Fortinet, and Cisco Meraki infrastructure, including switching, Wi‑Fi, and FortiGate firewalls.
• Maintain routing, VLANs, VPNs, SD-WAN, and high availability; troubleshoot connectivity and wireless issues.
• Implement, administer, and troubleshoot Aruba ClearPass NAC, including 802.1X and guest access.
• Support IP telephony, VoIP, and centralized call centre infrastructure (PBX, SIP trunks, QoS).
• Secure workloads across Azure, AWS, Alibaba Cloud, and Tencent Cloud, including WAFs and DDoS protection.
• Administer identity and privileged access controls (Microsoft Entra ID, MFA, CA, PAM such as Wallix).
• Support Defender and Intune security controls and their NAC integration.
• Coordinate with SOC on monitoring, incident response, and remediation; review service effectiveness.
• Conduct security configuration reviews, vulnerability assessments, and remediation tracking.
• Support Windows/Linux hardening and core services (AD, DNS, DHCP, NTP, PKI, TLS).
• Monitor infrastructure availability and capacity; manage firmware updates and rollback plans.
• Support backup security, disaster recovery planning, and failover testing.
• Automate routine administration using PowerShell or Python and IaC tools.
• Maintain network diagrams and asset inventories; coordinate vendor support and renewals.
• Support audits against ADHICS/DoH/DHA with evidence preparation and closure of findings.

Conoscenze

Network infrastructure

Network security

Cloud security

SOC coordination

NAC implementation

Azure security

Security auditing

IP telephony security

Strumenti

HPE Aruba

Fortinet

Cisco Meraki

Azure

AWS

Alibaba Cloud

Tencent Cloud

PowerShell

Python

Active Directory

Descrizione del lavoro

Experience: 5–8 years of relevant experience
Reports to: IT Infrastructure & Security Manager

Role Overview

Responsible for implementing, managing, securing, and troubleshooting the organisation’s network and multi-cloud infrastructure across all sites. The role covers firewalls, switching, Wi-Fi, telephony, cloud security, and NAC, alongside SOC coordination and support for security audits.

Key Responsibilities

· Manage HPE Aruba, Fortinet, and Cisco Meraki infrastructure, including switching, enterprise Wi‑Fi, and physical and cloud-hosted FortiGate firewalls.

· Maintain routing, VLANs, network segmentation, VPNs, SD-WAN, and high availability; troubleshoot connectivity, wireless coverage, roaming, and performance issues.

· Implement, administer, and troubleshoot Aruba ClearPass NAC, including 802.1X, RADIUS/TACACS+, device profiling, guest access, certificate‑based authentication, and access enforcement.

· Support IP telephony, VoIP, and centralised call centre infrastructure, including PBX connectivity, SIP trunks, call routing, QoS, and call‑quality troubleshooting.

· Secure workloads and applications across Azure, AWS, Alibaba Cloud, and Tencent Cloud, covering network protection, encryption, logging, web application firewalls, DDoS protection, and secure application publishing.

· Administer identity and privileged access controls, including Microsoft Entra ID, MFA, Conditional Access, and PAM solutions such as Wallix.

· Support Microsoft Defender and Intune security controls and their integration with NAC and security monitoring.

· Coordinate with the SOC on monitoring coverage, incident investigation, response, and remediation; review service effectiveness.

· Conduct security configuration reviews, coordinate vulnerability assessments and penetration testing, and track remediation and retesting.

· Support Windows/Linux hardening and core infrastructure services, including Active Directory, DNS, DHCP, NTP, PKI, and TLS certificate management.

· Monitor infrastructure availability and capacity; manage firmware updates, configuration backups, and changes with appropriate testing and rollback plans.

· Support backup security, restoration testing, infrastructure failover, and disaster recovery planning.

· Automate routine administration and security checks using PowerShell, Python, or infrastructure-as-code tools.

· Maintain network diagrams, operating procedures, asset and licence inventories; coordinate vendor support, escalations, and renewals.

· Support audits against applicable ADHICS, DoH, and DHA requirements, including evidence preparation, control validation, and closure of findings.

Candidate Requirements

· 5–8 years of relevant experience spanning network infrastructure, network security, and cloud security.

· Hands‑on experience with HPE, Fortinet, and Cisco, including switching, firewalls, and enterprise Wi‑Fi.

· Practical experience implementing, administering, and troubleshooting NAC solutions.

· Strong Azure security expertise and practical experience securing additional cloud platforms.

· Working knowledge of IP telephony, VoIP, SIP, and voice‑network troubleshooting.

· Experience with SOC coordination, incident response, vulnerability management, and security audit support.

· Relevant HPE, Aruba, Fortinet, Cisco, or cloud security certifications preferred; healthcare‑sector experience is an advantage.

· Healthcare‑sector experience is an advantage

· Healthcare‑sector experience is an advantage