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🔹SENIOR NETWORK ENGINEER | NETWORK SECURITY, PRIVATE CLOUD & INFRASTRUCTURE🔹 Senior Network Engineer with 6+ years of experience designing, securing, and operating enterprise networks, private clouds, and IT infrastructure. I've built private clouds for clients of a global managed hosting provider with presence in 10+ data centers and over 2 Pbps of global uplink capacity, and delivered network and security solutions across a wide range of enterprise environments. Whether you're designing new infrastructure from scratch, upgrading and modernizing an existing network, hardening your security posture, or migrating workloads to the cloud, I bring senior-level engineering with a focus on clean design, security, and long-term reliability. 🌐 Network Engineering & Design Enterprise, data center, and multi-site network design and upgrades. Routing: BGP, OSPF, EIGRP, IS-IS, MPLS, VXLAN Switching: VLANs, STP, LACP, MLAG, VRRP, HSRP, QoS, EVPN-VXLAN fabric Load Balancing: HAProxy, NSX-T, NSX-V 🔐 Network Security & Firewalls Vendors: Fortinet (FortiGate), Palo Alto, Juniper SRX/vSRX, Sophos (UTM, XGS), SonicWall, Zyxel, pfSense, OPNsense Services: NGFW rules, NAT, segmentation, IPS/IDS, DDoS mitigation, Zero Trust ☁️ Private Cloud & Virtualization Hypervisors: VMware (ESXi, vCenter), Proxmox, Hyper-V, KVM, Xen Virtual networking & security: VMware NSX-T / NSX-V, pfSense, OPNsense, Sophos 🌩️ Cloud & Hybrid Networking AWS: VPC, Transit Gateway, Site-to-Site VPN, Security Groups, hybrid connectivity Also experienced with Azure, Vultr, DigitalOcean, Linode 🔗 VPN & Secure Remote Access IPsec, OpenVPN, WireGuard, SSL VPN, GRE, L2TP, DMVPN, SD-WAN Enterprise VPNs, hybrid cloud connectivity, secure remote workforce 📡 UniFi / Ubiquiti Deployments UniFi network design and deployment for offices and multi-site businesses UniFi switches, access points, gateways, Dream Machine 🧰 Vendors & Platforms Cisco (Catalyst, Nexus, Meraki, ISR, ASR), Juniper (MX, vMX, EX, QFX, SRX), Huawei (CloudEngine), Fortinet, Palo Alto, Sophos, SonicWall, Zyxel, Ubiquiti/UniFi, VMware ⚙️ Automation, Monitoring & Documentation Automation: Python (Netmiko, NAPALM), Ansible, Terraform, REST APIs Monitoring: PRTG, Grafana, LibreNMS, Zabbix, Cacti, FastNetMon Documentation & IPAM: NetBox, phpIPAM 🐧 Linux Ubuntu, Debian, CentOS, FreeBSD, OpenBSD 📜 CERTIFICATIONS Cisco: CCNP, CCNA 💼 SERVICES • Network Design & Optimization (Enterprise, Data Center Fabric, Private Cloud) • Firewall & Security Hardening (NGFW, IPS/IDS, Zero Trust) • Private Cloud Build & Migration (VMware, Proxmox) • Cloud & Hybrid Networking (AWS VPC, Transit Gateway, Site-to-Site VPN) • VPN & Secure Remote Access (IPsec, SSL, SD-WAN, WireGuard) • UniFi Network Design & Deployment • Network Troubleshooting & Performance Tuning • Network Automation & Monitoring (Ansible, Python, APIs)

Results-driven Senior Network & Security Engineer with 15+ years' experience in routing, switching, security, and network design for corporate and enterprise environments. I specialize in next-generation firewall and security platforms, including Fortinet (FortiGate, FortiManager, FortiNAC, FortiAuthenticator), Palo Alto Networks (Panorama), Cisco ASA/FTD, Cisco WSA/SMA, and Juniper SRX — alongside SD-WAN design and deployment across Fortinet and Meraki MX environments. My core strengths cover enterprise routing and switching with BGP and OSPF, centralized policy and device management through FortiManager and Panorama, and application delivery/load balancing with F5 BIG-IP. I also bring hands-on experience extending network security into the cloud, with networking expertise across AWS and Azure — covering hybrid connectivity, secure cloud-to-cloud, and cloud-to-on-prem architectures. Whether it's a greenfield SD-WAN rollout, a multi-vendor firewall migration, NAC deployment, or a full network security audit, I bring a methodical, security-first approach focused on minimizing downtime and delivering measurable outcomes.

I design fit-for-purpose infrastructure that holds up under pressure without torching the budget. I build and run multivendor production environments where systems must behave predictably through load, change, and failure. I own systems end-to-end: architecture, deployment, operations, and incident response. I kill manual toil with IaC and repeatable workflows, eradicate configuration drift, convert tribal knowledge into clean diagrams, runbooks, and a single source of truth. Security is built into the design through segmentation, least-privilege access, and automated controls, with systems documented and monitored to support audits, security incidents, and ongoing operations. I’ve seen the carnage of failed changes, vague handovers, audit nightmares, and undocumented systems that bleed operational risk daily. That’s why I build lean, observable, boringly stable platforms that scale without drama and cost less to run long-term. Experienced across enterprise, data center, and cloud environments, with industry exposure spanning telecoms, vendor support, MSP operations, financial services, low-latency trading, and large-scale service providers. 💻TECH SKILLS🥷 🌐Networking: WAN, LAN, WLAN(Meraki, UniFi), VLANs, VXLANs, IPv6, NAT, RIP, OSPF, BGP, VRF, ACLs, QoS, VPNs, DHCP, DNS, NFV 📦Virtualization: VMware, OpenStack, Hyper-V, KVM, Proxmox, Docker, SR-IOV, SAN ☁️Cloud: AWS(EC2, VPC, Flow Logs, S3, IAM, CloudWatch, WorkSpaces, WAFR), Azure(VMs, AD, Networking), Google Workspace, Office 365 ⚙️OS: Cisco IOS, Cisco NX-OS, Dell OS10, Arista EOS, Windows Server(PowerShell, AD, Group Policy, Exchange), Linux(Bash, IPtables, Permissions, Nginx), macOS 🔐Security: Firewalls(Palo Alto, FortiGate, SonicWall), CASB(Netskope), SIEM(Rapid7), MDM(MaaS360), IAM(Okta, Centrify, CyberArk), Email(Mimecast) 🤖Automation: Python(Jinja2), APIs(RESTful, NETCONF, RESTCONF), XML, JSON, YAML, YANG, Terraform, Ansible, GitHub 🛠️Tools: Wireshark, Nmap, iPerf, Cisco CIMC, Dell iDRAC, Dell OpenManage, Veeam, OpenVAS, GitHub, Postman, ManageEngine, PRTG, Zabbix, Observium, Graylog, Passbolt, NetBox, Visio, Itemit

Do you need a reliable System Administrator to keep your servers secure, optimized, and running 24/7? I specialize in system administration, server management, and cloud infrastructure, helping businesses maintain stability, scalability, and security across hybrid environments. ⚙️ What I Do I provide end-to-end system administration and technical support for both Windows and Linux ecosystems — ensuring high performance, strong security, and minimal downtime. Core Services: 🧩 Windows & Linux Server Management (Ubuntu, CentOS, Red Hat) 🔒 Active Directory, Group Policy, and User Management ☁️ Microsoft 365 & Azure Administration (VMs, Azure AD, IAM, MFA) 🧠 Network Administration & Security (VPNs, Firewalls, Load Balancing) 💾 Backup & Disaster Recovery (Veeam, Acronis, Windows Backup) ⚙️ Server Virtualization (VMware, Hyper-V, Proxmox) 🔧 Automation & Scripting (PowerShell, Bash) 🛠️ Remote IT Support & Troubleshooting (TeamViewer, RDP, AnyDesk) 🌐 Tools & Technologies Operating Systems: Windows Server, Ubuntu, CentOS, Red Hat Platforms: Azure, Microsoft 365, VMware, Hyper-V, Proxmox Networking: Cisco ASA, Fortinet, pfSense, Nginx, HAProxy Monitoring: Nagios, PRTG, SolarWinds Backup: Veeam, Acronis, Windows Backup ⚡ Why Clients Choose Me ✅ 20+ successful system administration projects with 5-star results ✅ Proactive monitoring to prevent issues before they occur ✅ Fast response times and detailed documentation ✅ Experienced in both on-premises and cloud environments ✅ Dedicated to delivering secure, efficient, and reliable IT solutions Let’s optimize your systems for performance, security, and uptime. 💬 Contact me to discuss your infrastructure and how I can help streamline it.

IT Support Engineer with extensive experience in network configuration, troubleshooting & system optimization. Adept at prioritizing tasks, managing projects, and providing top-tier user support. Holding an MSc in Business Intelligence & Analytics, with a focus on enhancing IT performance. Passionate about leveraging technical skills to deliver impactful solutions and drive success within an organization. Although, I’m new to Upwork, but I bring a wealth of experience and a strong skill set that makes me confident in my ability to deliver high-quality work. Over the years, I’ve developed expertise in IT support, Technical support, Network Support, Network troubleshooting & management, Network configuration & monitoring, Technical Documentation, Data Entry, Data Administration, Web searching, Customer Support and I’m eager to apply this to help clients achieve their goals. Beyond my technical skills, I have strong communication, attention to detail, and problem-solving abilities that set me apart. My personality traits, such as being reliable, adaptable, and proactive, further enable me to deliver exceptional results and foster positive working relationships. I’m excited to start this journey on Upwork and am committed to providing great value to every project I take on.

Hi, I'm Nana! I've helped businesses migrate email platforms safely, securely, and without downtime for over 20 years. During that time I've also helped them fix spam issues and set up their domain on online platforms. I hold a Microsoft MCSE email specialization and have extensive expertise with Google Workspace, Microsoft 365, and various other email systems. Having founded and managed my own company, I understand the challenges you face. Let me handle the technical side, so you can focus on your core business. My guarantees: No downtime. No emails lost. No data lost. No Junk mail. Post-project validation. Security and privacy. Satisfaction - 7 days post service support. You shouldn't worry about email setup, migration, or delivery issues. Focus on your main tasks and leave all your email worries to me. I have over 20 years of experience with every kind of email system you can imagine and I am certified. Things I can do for you: * Custom domain registration and email setup on - Google Workspace, Microsoft 365, Microsoft Outlook, Zoho Mail, iCloud Mail, cPanel webmail, Fastmail, Bluehost, Godaddy, Rackspace, Proton Mail, Yahoo Mail, Yandex Mail, Namecheap Mail, Zimbra and any other email platform. * Email migration with no downtime. Seamless migration to or from any email platform to another. You emails, your contacts and your calendar items will all be moved. * Verify your domains, setup secondary domains and aliases. * Setup email forwarding * Setup and configure shared mailboxes and shared calendars. * Setup and configure DNS records to avoid spam folder and fix delivery issues: SPF, DKIM, DMARC, TXT, MX, etc. * Configure mail clients like Outlook, Thunderbird, etc. * Configure email marketing tools and provide audits and recommendations to improve ongoing inbox placement and campaign success. I look forward to helping you. If you have any questions message me to discuss.