Hire the Best IPsec Specialists

I’m a network engineer with over 9 years of experience in managing, optimizing, and securing complex network infrastructures in global environments. Professional Background: I offer end-to-end network solutions—from setup to optimization—designed to give your business uninterrupted performance, top-tier security, and long-term stability. Specializations: 1. Cisco Technologies (Routers, Switches, Firewalls - ASA, ISE, SD-WAN, VPN - AnyConnect) 2. Juniper (Routers and Switches) 3. Arista (Routers and Switches) 4. Meraki (Switches and Access Points) 5. Palo Alto Firewalls 6. Fortigate Firewalls 7. Linux Servers 8. VMWare vCenter Certifications: 1. CCNP Enterprise 2. CCNA Security and Data Center 3. AWS Cloud Practitioner If you’re looking for a reliable professional to manage your network, resolve technical challenges, and strengthen your infrastructure's security and efficiency, let’s connect.

I am a CCIE-certified Network Engineer with over 14 years of experience designing, upgrading, and supporting on premise and hybrid enterprise network infrastructure across healthcare, financial services, professional services, public sector, and managed services environments. My background is rooted in deep hands-on expertise across routing and switching, data center networking, WAN architecture, and advanced troubleshooting in complex, multi-vendor environments. I have worked extensively with platforms including Cisco, Palo Alto, Infoblox, Arista, and Juniper. Throughout my career, I have led large-scale remote and hybrid deployments, stabilized critical network environments, and improved uptime, performance, and scalability across both data centers and distributed enterprise systems. I bring a strong ability to partner cross-functionally with infrastructure, security, and operations teams to deliver resilient, high-performing network solutions. CORE COMPETENCIES: ★ Data Center Architecture ★ Routing & Switching ★ SD-WAN ★ Network Security ★ WAN Architecture ★ Infrastructure Modernization ★ Advanced Troubleshooting ★ Cisco Nexus & Catalyst ★ Palo Alto / Fortinet Firewalls ★ Infoblox ★ BGP / OSPF / EIGRP ★ MPLS / DIA ★ Network Automation (Ansible) ★ High Availability & Resiliency ★ Leaf & Spine / Core & Distribution & Access TOOLS: Cisco IOS | Cisco NX-OS | Cisco Nexus (9000/7000/5000/2000) | Cisco Catalyst | Cisco ACI | Arista EOS | Juniper MX/EX | ArubaOS | Nokia OS | Cisco Meraki | BGP | OSPF | EIGRP | vPC | STP | VDC | VXLAN | EVPN | NAT | QoS | Multicast | VRF | DMVPN | IPsec | HSRP | VRRP | GLBP | LACP | LLDP | CDP | Cisco Catalyst SD-WAN | Viptela SD-WAN | SilverPeak SD-WAN | MPLS | DIA | Metro Ethernet | Palo Alto | Fortinet | Cisco ASA | Cisco ISE | Cisco DNA | Wireshark | Ansible | TCL Shell | Python | SecureCRT | PuTTY | ServiceNow | Microsoft Teams | Zoom | Webex | Outlook | Visio CERTIFICATIONS: CCIE Routing & Switching #51201 | CCNP | CCDA | MCSE

Am a CCIE#26611 with extensive experience in Routing & Switching, Security, Datacenter, Virtualization, Public Cloud, Artificial Intelligence Network Skills & Agentics, Programmability & Automation. Am delivering unique & absolutely different service for the below technologies: * SDN Datacenter: Cisco ACI, VMware NSX, Nutanix Flow, Arista. * SDN Storage: Nutanix HCI, VMware VSAN. * SDN Access: Cisco DNA, LISP Implementation, Cisco Spaces, Cisco ISE, PacketFence. * SDN WAN: Cisco SDWAN, VMware VeloCloud, SilverPeak, PaloAlto SDWAN, FortiGate SDWAN, Meraki. * Programmability & Automation Controllers: Python & API tools to automate business intent & workflows within networks, Ansible, Chef, NSO, Terraform, OpenShift, AI network skills. * Monitoring Applications: Zabbix, SolarWinds, Home Made Custom Tools, Nmap, Packet Tracer (Wireshark), Splunk, Wazuh, ContraForce, ServiceNow and much more. * Routing & Switching and Wireless Technologies: Cisco, Mikrotik, Juniper, FS, Arista, HPE, Huawei. * Security: Cisco, PaloAlto, Meraki, FortiNet, Ubiquiti, VMware MDM, Infoblox. * Datacenter, Cloud Computing, Cloud Native, Virtualization & HCI Solutions. * Public Cloud: Design, Setup & Administer Tenants on AWS, Azure, GCP & OCI. * Micro-segmentation & Containerized Applications: Docker, Kubernetes. * API Gateways & Swagger Documentation. * Python Scripting for DevOps, SecOps, NetOps & I network skills. * Technical Writing & Documentation. Please refer to my LinkedIn account aossama. Certifications: * CCIE Enterprise CCIE#26611. * Cisco CCNP DevNet. * Cisco CCNP Enterprise. * Cisco CCNP Datacenter. * Cisco ACI Certified Specialist.

With 10+ years in network infrastructure and security, I help businesses resolve the issues that stop daily operations: failed VPNs, blocked firewall traffic, unstable branches, cloud connectivity and VoIP/SIP problems. My focus is simple: find the actual root cause, restore services with minimum disruption, and avoid risky trial-and-error changes on a live network. I have supported enterprise, government, data centre and multi-site business networks using Fortinet, Cisco and other leading firewall platforms, with hybrid connectivity across AWS, Microsoft Azure and Google Cloud. My "Zero-Risk" Methodology Many engineers rely on "guess and check" troubleshooting. I don't. I never make blind changes on a live production network. Before altering your setup, I map your current design, analyze your routing, and review firewall policies. I always pull backups, engineer a rollback plan, and execute controlled, fully documented changes. My goal is permanent stability, not temporary patches. Core Expertise & Outcomes Delivered: Firewall & Threat Management: FortiGate, Cisco, UniFi, and MikroTik. (Comprehensive policy audits, legacy rule cleanup, and strict hardening). Complex VPN Troubleshooting: Site-to-Site, Remote-Access, IPsec, and SSL VPNs. If your tunnel is unstable or failing, I will stabilize it. Cloud & Hybrid Infrastructure: AWS (VPC, Security Groups), Microsoft Azure (VNet, VPN Gateway, NSG), and Google Cloud. I build secure, seamless office-to-cloud and cloud-to-cloud bridges. VoIP/SIP Optimization: Resolving SIP registration failures, NAT traversal bugs, one-way audio, and call drops using precise QoS, Voice VLANs, and Cisco CUBE support. Advanced Routing & Switching: SD-WAN deployments, dual-ISP failover, VLANs, and comprehensive LAN/WAN/Wi-Fi troubleshooting. How We Can Partner: Emergency Troubleshooting: Rapid isolation and resolution of critical connectivity, routing, or security failures affecting your users. Network Health & Security Audits: Deep-dive reviews to identify vulnerabilities, clean up messy configurations, and provide actionable security roadmaps. Infrastructure Setups & Migrations: End-to-end planning for new branch offices, secure remote work environments, and physical security networks (CCTV/Biometrics). Retained Network Support: Dependable, on-demand escalation support for internal IT teams, MSPs, software companies, and business owners. My core technical experience includes: • FortiGate configuration, migration and troubleshooting • Cisco routers, switches, Firewall, Firepower, Voice Gateway and CUBE • Fortigate, Fortinet, Mikrotik, • IPsec, SSL and remote-access VPNs • Site-to-site VPN and multi-site connectivity • SD-WAN, dual-ISP failover and policy-based routing • VLANs, routing, NAT, DHCP, DNS and LAN/WAN troubleshooting • Firewall policy review, cleanup and security hardening • Wi-Fi, office connectivity and branch network support • AWS VPC, routing, security groups, VPN and hybrid access • Azure VNet, NSG, VPN Gateway, peering and hybrid connectivity • Google Cloud VPC, firewall rules, VPN and network access • SIP, NAT traversal, RTP, one-way audio and call-drop issues • Voice VLANs, QoS and firewall policies for voice traffic • Network diagrams, documentation and handover notes Where access permits, I take a backup, confirm the rollback plan, make controlled changes, test the traffic flow and document the result. This is especially important on production firewalls, remote branches, VPN tunnels and voice networks, where one quick change can affect another service. Let’s Secure Your Network Whether you need a one-time emergency fix, a comprehensive security audit, or ongoing support, I am here to help. Please share: Your primary firewall/hardware vendor and model. The exact issue or project scope (and any recent changes made). The number of sites or users affected. Once I understand your exact setup and the business impact, I will provide a clear, safe plan of action to get your network running flawlessly.

Experienced Network Operations Center Team Lead with a demonstrated history of working in the information technology and services industry. - expert in building vpn platforms - expert in Networking, Cisco Systems Products( R&S, Security and Collaboration). - expert in Palo alto , Fortinet, PFSense firewalls, Mikrotik router, VPN - very good experience in Vmware ESXi, Ubiquity, Unify , windows Servers - very good exprience in cloud (AWS, GCP, Azure, Oracle OCI) - very good experience in linux -very good experience in docker, kubernetes -very good experience in git, ci/cd - Strong Development Skills specially network development(C#, .net web API , asp.net mvc) - .net core web api, microservices, rabbitmq, Rest API, EF

Networks look like a puzzle to most people. To me, they're just a problem I know how to solve. What I deliver: Network audits & optimization Design & migration - new builds, office expansion, hybrid/cloud Security hardening - ACLs, segmentation, firewall policies, VPNs Troubleshooting escalations - when your team is stuck, I step in. Root causes, not symptoms. Mentoring / on-call - fractional architect for teams without a full-time role Technical depth: Areas and stack: Routing & switching - Multi-vendor. Security - PFSense, OPNSense, Fortinet, Palo Alto, Cisco ASA/FTD, VPNs, segmentation Linux - Any distro, bash scripting, performance tuning Virtualization - Proxmox, VMware, Hyper-V, KVM Automation - Ansible, Terraform Observability - Zabbix, Splunk, SNMP, syslog Background: 30+ years in the field, 7 as a Cisco Networking Academy Manager and Instructor. I've designed large-scale enterprise networks for government, healthcare, and finance — example a maternity center where downtime isn't an option, campus networks for universities, and an airport-wide wireless solution. I've delivered security projects following both international best practices and local regulatory standards. I've trained and worked alongside engineers across Australia, New Zealand, the US, and beyond, and I learn as much from them as they do from me. I work self-paced, lead or go solo, and I'm still adding tools: Proxmox and Splunk a few years ago, Ansible and Terraform last year. This year I'm diving into AI infrastructure — GPU clusters, distributed training, high-throughput data pipelines. I'm also building deeper into Python and scripting to support automation and development from the ground up. How I work: Clear communication, no jargon. English fluent. Documentation-driven: diagrams, runbooks, handoff notes. Available 20–40 hrs/week. Fixed-price or hourly — whatever fits. Ready to solve your network puzzle? Send me an invite.