Ernest H.

✨𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 🏆 Advanced Networking & Infrastructure Engineering I specialize in designing, implementing, troubleshooting, and optimizing complex network and infrastructure environments across enterprise, ISP, data center, and cloud environments. My expertise is vendor-independent and focused on networking principles, architecture, protocols, automation, security, and infrastructure design — allowing me to work across a wide range of technologies and platforms. ✅ Network Architecture & Engineering • Enterprise, ISP, carrier, and data center networking • High Availability, redundancy, and resilient network design • HLD / LLD, network migrations, optimization, and troubleshooting • Layer 2 / Layer 3 architecture • IPv4 / IPv6 planning, addressing, and implementation • VLAN, QinQ, VXLAN, EVPN, MPLS, VRF, and tunneling technologies ✅ Routing & Switching • BGP, OSPF, IS-IS, EIGRP, RIP • MPLS / MPLS VPN • VRF and route leaking • STP / RSTP / MST • HSRP / VRRP • VLANs, Private VLANs, VTP, QinQ • Data center switching and leaf-spine architectures ✅ Network Security & Connectivity • Firewalls and security architecture • Site-to-Site and Client VPN • IPsec, GRE, L2TP, OpenVPN, WireGuard • Network segmentation and security policies • Secure remote access and network hardening • SD-WAN and modern WAN architectures ✅ Vendor & Platform Expertise • Cisco, Juniper, Arista, Fortinet, Palo Alto • MikroTik, Dell, Brocade, Mellanox/NVIDIA • Aruba, Ruckus, Ubiquiti, Cambium • Huawei, ZTE and carrier/ISP platforms • pfSense, OPNsense, VyOS, Quagga, Cumulus Linux • VMware ESXi, Hyper-V and virtual networking ✅ Linux & Network Infrastructure • Ubuntu, Debian, CentOS, Fedora • Network services and infrastructure on Linux • FastNetMon, GoBGP, Cacti, LibreNMS • NetBox, phpIPAM and network documentation/IPAM platforms ✅ Cloud Networking • AWS: VPC, EC2, routing, security groups, VPN, S3 • Microsoft Azure: VNet, VM, VPN, routing, load balancing, security • Vultr: Compute, VPC, data centers, peering and routing 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻: 🎓Master of Sciences in Computers Engineering 🎓Industry-Recognized Certifications: 🌟Cisco: CCDP, CCNP Enterprise, CCNP Security 🌟Juniper: JNCIA 🌟Fortinet NSE4 🌟Ruckus: RCNI, RCWA 🌟HP: HyCl