Senior Cloud, Network & Security Engineer

alkalma Healthcare; Abu Dhabi; In loco; AED 279.000 - 446.000; Tempo pieno

Descrizione del lavoro

alkalma Healthcare is seeking a experienced Network and Security Architect to implement and manage the organisation’s network and multi-cloud infrastructure across all sites. You will oversee firewalls, switching, Wi‑Fi, VPNs, cloud security, and NAC, while coordinating with the SOC and security audits to ensure robust protection.

Responsibilities include managing Aruba, Fortinet, and Cisco Meraki ecosystems, implementing 802.1X, and supporting telephony, identity controls, and vulnerability

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, 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.
• Healthcare-sector experience is an advantage

Mansioni

• Manage network infrastructure, security, and cloud security across sites.
• Administer NAC including 802.1X, RADIUS, and guest access.
• Coordinate with SOC for monitoring, incident response, and remediation.
• Support audits against DoH, DHA, and ADHICS requirements.
• Oversee firewalls, VPNs, SD-WAN, and high availability.
• Maintain diagrams, inventories, and vendor escalations.

Conoscenze

Network infrastructure

Network security

Cloud security

NAC solutions

Azure security

IP telephony/VoIP

SOC coordination

Vulnerability management

Security audits

Strumenti

HPE Aruba Fortinet Cisco Meraki

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