Hire the Best 3CX Freelancers in Cairo, EG

Technical Support Engineer with experience specializing in cloud communication solutions, VoIP technologies(3CX,Yeaster,Grandstream,Dinstar,FreePBX), and enterprise IT infrastructure. Strong expertise in Cisco switching and routing, with hands-on experience in designing, configuring, and troubleshooting LAN/WAN environments. Experienced Fortinet (FortiGate) and Sophos Firewall Administrator, skilled in implementing security policies, VPNs, and advanced threat protection. Proficient Windows Server Administrator, with experience in Active Directory, DNS, DHCP, Group Policy, and server maintenance. Proven ability in deploying scalable PBX systems, enhancing customer service through advanced call center solutions, and integrating unified communication platforms.

I'm a Senior Network Security Engineer and consultant trusted by government agencies, universities, and enterprises across Egypt to design, secure, and troubleshoot critical infrastructure — not just fix tickets. With 7+ years of hands-on and consultancy experience, including at Egypt's Council of Ministers, I bring senior-level judgment to every firewall, VPN, email security, and routing challenge. I specialize in firewall deployment and optimization (FortiGate, Palo Alto, FTD, Forcepoint), VPN solutions (IPsec, SSL VPN, FortiClient, Pulse Secure), and advanced routing technologies, including OSPF, BGP, MPLS, L2VPN, and L3VPN. I also have strong expertise in Email Security and Mail Gateway solutions — resolving complex delivery issues, configuring SPF/DKIM/DMARC, handling blacklist removal, SMTP relay setup, and DNS-related outages. I work with FortiMail, Postfix, Cisco Email Security Gateway, and Microsoft Exchange Server 2016/2019 in production environments. In addition, I have solid experience in Cisco Voice infrastructure, including CUCM, Cisco IM & Presence, Unity Connection, and Expressway — covering VoIP deployments, SIP trunk configuration, call routing, and secure remote access for collaboration environments. I help businesses and institutions: Secure and harden network infrastructure against real threats Deploy and optimize VPN solutions for remote and site-to-site access Troubleshoot complex routing and firewall issues at the root cause Resolve email delivery failures and DNS misconfigurations Deploy and secure mail gateways (FortiMail, Postfix, Cisco Gateway) Implement and troubleshoot Cisco VoIP environments Implement monitoring and SIEM solutions (Zabbix, QRadar, Splunk) Configure and secure F5 Web Application Firewall My approach is structured and results-driven: I identify the root cause, design a clean solution, implement with minimal downtime, and ensure long-term stability. If your network, email infrastructure, or security posture needs an engineer with government-grade experience and a consultant's mindset, I'm ready to help.

Do not you think that all applications of candidates alike? Let me try to interest you in another way. 5 reasons to choose me as worker: 1. The result of 100%. You get the finished result, which will not have to redo it. 2. Stay in touch. I am available most of the time of day, so promptly respond to your message in the process. 3. The visual result. The process of working on a project for your convenience, I will share with you - you will not see the bare text that describes what has been done, you will be able to touch and try the result. 4. Your corrections. I will try to do everything perfectly the first time, but if you do not like something, I'll make changes until you say, "I am happy with everything. 5. hardworking and honest that provides quality and accurate work. I am a detail oriented person and can follow instructions. Contact me any way you want and we will start cooperation. With respect and hope for cooperation, Magda Hassan

I have more than seven years of experience as a network admin responsible for configuring and managing networking devices (Switches, routers, firewalls, APs) including implementing solutions related to the configuration of DHCP relay agents with VLANs on L3 switches, and VPN remote sites and site 2 site connectivity with routing features, implementation of RADIUS solutions, usage of routing, switching and WAN protocols, limiting speed on ports, restricting port access on switches and implementing ACL and NAtting on firewalls. I also have more than ten years of experience working as a system admin responsible for configuring and managing Windows server 2003, till 2024 Active Directory & domain services, Infrastructure service (DNS, DHCP), Group Policy, and SW updates and configurations via SCCM in addition to the advanced services (loaded balancing & clustering). For the cloud services, I have experience in configuring and managing Azure domain services, managing active directories and implementing GPOs, intune policies, setting up monitoring and alerts for vms, and supporting Office 365 products (Exchange online, one drive,Ms SharePoint, Ms teams,etc...). Am currently working as a unified communication implementation engineer (UCIE) in a multinational integrator company in which am responsible for integrating local gateways/SBC with Microsoft Teams clients using direct routing solutions and utilizing Teams capability (LMO/LBR) and this is based on projects requirements and can provide great assistance in designing, modifying, implementing, and integrating various telecommunication hardware, and now I am working on implementing contact center solutions using my knowledge in backend programming and scripting languages. Besides that also am working on implementing analytics, diagnostic & monitoring solutions to diagnose networking issues and monitor various o365 products.

CCIE #42303 | Fortinet Security Architect | Microsoft Teams, Azure Cloud & AI Certified Solution Consultant Team Lead With over 18 years of experience, I specialize in designing, implementing, and supporting enterprise-grade Network, VoIP, Unified Communications (UC), Contact Center (UCCE/UCCX), Telepresence, Security, SD-WAN, SASE, and Cloud solutions. I help organizations modernize their communication infrastructure, optimize performance, and enhance security and reliability across multi-vendor environments — from on-prem to hybrid and cloud. ________________________________________ ⚙️ Areas of Expertise 🔹 Cloud & Microsoft Ecosystem • Designing and administration of Office 365 tenants, Azure Cloud, and Microsoft Entra ID (Azure AD) solutions. 🔹 Unified Communications & Collaboration • Design, implementation, and troubleshooting of Microsoft Teams, AudioCodes Mediant, Sonus/Ribbon, Oracle Acme SBCs, Cisco Call Managers (CUCM, CUCME, CUCMBE, SME), Cisco Unity, IM&P, Expressway, CUBE, and Prime Collaboration. • Extensive experience with Cisco Hosted Collaboration Solutions (HCS), UCS (B & C Series), and CUCDM. • End-to-end setup of Cisco Telepresence (Codecs, TMS, CMS, VCS, Expressway) and Webex Collaboration platforms. • Designing and supporting hybrid environments integrating Microsoft, Cisco, Zoom, 3CX, and Multi-Vendor collaboration solutions • Designing and supporting scalable open-source VoIP solutions like FusionPBX, Asterisk, FreePBX, ASTPP Billing, and integrating them with various communication platforms like Twilio, Telnyx, and different other communication channels and tools. 🔹 Contact Center & Voice Integration • Strong background in Cisco On-premises contact center UCCE and UCCX ecosystems including ICM, CVP, CUSP (SIP Proxy), PG, CTI, Finesse, CUIC, and other critical components. • Designing, implementing, and supporting Mutli-Vendor Cloud Contact Center Solutions including Cisco Webex Contact Center, Genesys Cloud, Microsoft Dynamics, and Anywhere365. • Designing, implementing, and supporting open-source cost effective contact center solutions like VICIdial. • Integration with voice recording, billing, XML, and 3rd-party applications (Verint, Nice, Qfiniti, Carin, VPI, etc.). • Skilled in Voice XML, SQL troubleshooting, and multi-vendor interoperability. 🔹 Protocols & Connectivity • Deep expertise in different network routing and switching protocols. • Deep expertise in VoIP Protocols SIP, H.323, MGCP, Skinny, and Fax over IP. • Skilled in E1/T1 R2, ISDN PRI/BRI, and QSIG trunk configurations. 🔹 Networking & Security • Expertise in wired and wireless network infrastructure solutions including Cisco switches, routers, VGs, Fortinet SD-WAN & SASE, ZScaler SASE, VPNs, and L2TP security. • Solid understanding of Cisco ASA, ISE, Fortinet, Palo Alto Firewalls, HAProxy, and F5 Reverse Proxies. • Hands-on experience with VMware vSphere & vCenter, SolarWinds, and network monitoring integrations. 🔹 Operational Excellence • Skilled in change management, release management, and system optimization across multi-platform environments. ________________________________________ 🚀 What I Deliver ✅ Scalable, secure, and high-performance Network, Cloud, and collaboration architectures ✅ Smooth migrations and hybrid integrations (on-prem ↔ cloud) ✅ 24/7 reliability through proactive monitoring and optimization ✅ Expert troubleshooting and post-deployment support ________________________________________ If you’re looking for a seasoned consultant who can design, build, and secure your Infrastructure and communication ecosystem end-to-end, I’d be glad to help you achieve it efficiently and cost-effectively.

As a VoIP Expert with bachelor's degree in Telecommunication Engineering, 9 years of experience and holding CCNP Collaboration and Microsoft Teams Voice Engineer certificates, I am a highly skilled professional who is responsible for designing, implementing, troubleshooting and maintaining reliable and secure collaboration solutions that help businesses improve communication and collaboration with their employees and customers. I have a strong technical background in Cisco collaboration solutions, including Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC), Cisco Contact Center Express (UCCX), Cisco Webex Calling, Cisco Webex Contact Center, Cisco Jabber, Cisco Contact Center Enterprise (UCCE), CMS, Cisco Expressway, CUCME, CUCMBE, Cisco Broadworks and CUBE. I am proficient in configuring, deploying, and troubleshooting these solutions to meet the specific needs of businesses. I am also experienced in integrating third-party solutions with Cisco Call Manager. In addition to all of that, I have experience in managing, implementing and troubleshooting other VoIP servers like 3CX, Yeastar, Grandstream, Vital PBX, Oracle SBC and FreePBX, also I have experience in migration between VoIP systems specifically migration from 3CX to FreePBX. I have experience in managing, implementing and troubleshooting firewalls and routers on a lab environment like Fortigate firewall, Cisco and Mikrotik routers. I have on hands experience with the below: - Cisco Webex Calling - Cisco Webex Contact Center - Expressway - CMS - CUBE - UCCX - UCCE - CUCM - SIP Trunks - H323 voice gateways - CUC - Analog voice gateways - ISDN voice gateways - MGCP voice gateways - CUCMBE - CUCME - Cisco Jabber - CIPC - Oracle SBC - Cisco BroadWorks servers - Imagicle Fax Server - Imagicle Attendant Console Server - Calabrio recording application CUCM configuration - Linux system administration - 3CX - Linphone - Twilio - FreePBX - Yeastar - Grandstream - Vital PBX - Fortigate - Cisco routers - Mikrotik routers - IPSEC VPN - VLAN - OSPF - BGP - NAT