Senior 3CX/VoIP Engineer — Enterprise IT & Security

InsuranceMarket.ae™; Dubai; On-site; AED 223,000 - 391,000; Full time

Job summary

InsuranceMarket.ae™ in Dubai is seeking a hands-on 3CX/VoIP and Systems Administrator to manage and support business-critical communications and IT infrastructure. You will oversee 3CX, SIP technologies and Windows/Office 365 environments, leading projects, ensuring security and high availability, and collaborating with business teams to deliver reliable, scalable solutions.

The role requires strong troubleshooting skills, security-first mindset and the ability to work independently on

Qualifications

• Strong hands-on experience with 3CX, VoIP and SIP technologies.
• Experience supporting enterprise VoIP and communication infrastructure.
• Proven experience providing L1/L2 technical support.
• Experience with 3CX deployment, configuration, optimisation and troubleshooting.
• Experience working with virtualised environments, HA and backup solutions.
• Strong understanding of SIP, call routing, extensions, trunks and call quality troubleshooting.
• Experience with Microsoft Office 365, Windows Server and Active Directory.
• Good knowledge of networking, wireless and voice infrastructure.
• Strong system administration and hardware/software troubleshooting skills.
• Familiarity with ITSM processes and ticketing systems.
• Experience with API integrations and workflow automation is an advantage.
• Strong understanding of IT and infrastructure security with a proactive, security-first approach.

Responsibilities

• Manage enterprise VoIP infrastructure across design, implementation, stabilisation and ongoing support.
• Provide L1 and L2 support for VoIP and communication systems.
• Lead 3CX/VoIP projects from requirements analysis and solution design through implementation, production rollout and operational support.
• Deploy, configure and optimise 3CX systems in virtualised environments.
• Design and maintain High Availability (HA) and backup strategies.
• Harden VoIP infrastructure against security threats and proactively identify and remediate operational and security weaknesses.
• Troubleshoot SIP trunks, extensions, call routing, call quality and other telephony-related issues.
• Work closely with business teams to understand technical requirements and deliver effective solutions.
• Support API integrations and workflow automation related to the 3CX platform.
• Administer and support Microsoft Office 365 environments.
• Manage Windows Server, Active Directory, user administration and endpoint support.
• Support voice, networking and wireless infrastructure.
• Perform system administration, hardware/software troubleshooting and enterprise IT operations.
• Work with IT service management processes and ticketing systems.

Skills

3CX / VoIP

VoIP technologies

SIP troubleshooting

Windows Server

Active Directory

Office 365

Networking basics

Security-first mindset

ITSM processes

API integrations

Tools

Hyper-V/VMware

Job description

InsuranceMarket.ae™ in Dubai is seeking a hands-on 3CX/VoIP and Systems Administrator to manage and support business-critical communications and IT infrastructure. You will oversee 3CX, SIP technologies and Windows/Office 365 environments, leading projects, ensuring security and high availability, and collaborating with business teams to deliver reliable, scalable solutions.

The role requires strong troubleshooting skills, security-first mindset and the ability to work independently on