As a dedicated network and security expert, I am driven by my passion for technology and my commitment to solving complex problems. With over 10 years of experience in the network and security domain, I possess in-depth knowledge of a variety of technologies, including Cisco, Palo Alto, Checkpoint, F5, SonicWall, Fortinet, Sophos, VMware, and more. My expertise spans design, administration, implementation, and support, and I have a proven track record of deploying and troubleshooting IP protocols, as well as layer 3 routing and layer 2 switching. In addition, I have experience with Cisco ASA, Firepower, and FMC, and am an expert in network protocols, LTM, WAF, firewalls, and security systems design and implementation. I have successfully deployed F5 Web Application Firewall, Local Traffic Manager & DNS, as well as VCMP in F5 BIG-IP. My experience includes deploying Cisco application-centric infrastructure (ACI), and I possess extensive knowledge in MPLS, BGP, ISIS, OSPF design, and implementation. Moreover, I am skilled in deploying Palo Alto & Sophos next-generation firewalls, and possess a deep understanding of designing and implementing data center technology like FCOE, VSAN, SAN, FEX, and vPC. I also have knowledge in Cisco Unified Communications Manager. With an eye for detail, I am proficient in using Microsoft Visio for technical documentation and presentation purposes. I possess excellent experience in Network Planning, Implementing, Configuring, Troubleshooting, and Testing of networking systems. I hold multiple professional certifications, including CCIE Routing and Switching (400-101) - Written, Cisco Certified Network Associate (CCNA), F5 301a: LTM Specialist: Architect, Setup and Deploy, F5 Certified Administrator, BIG-IP, and more. My technical skills encompass a broad range of expertise, including routing / WAN, switching, security, data center / Nexus, virtualization, NMS / analysis, hardware, F5 Networks, and IOS. I have extensive experience with network tools and software, such as Solarwinds engineer's toolset, GNS3, UNL, and EVE-NG. If you are looking for a dedicated and experienced network and security expert with a proven track record of success, I invite you to connect with me.

🥇 𝗧𝗼𝗽 𝟭% 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 | 💰 𝗖𝘂𝘁 𝗖𝗹𝗼𝘂𝗱 𝗖𝗼𝘀𝘁𝘀 𝟮𝘅–𝟱𝘅 | 📈 𝟮𝟮𝟬+ 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 | ⚡ 𝟵𝟵.𝟵𝟵% 𝗨𝗽𝘁𝗶𝗺𝗲 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀 | 🚀 𝟭𝟬𝟬𝟬+ 𝗩𝗠𝘀 | 𝗣𝗕-𝘀𝗰𝗮𝗹𝗲 𝗰𝗹𝘂𝘀𝘁𝗲𝗿𝘀 | 🧠 𝟮𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 | 🎯 𝟲𝗸+ 𝗨𝗽𝘄𝗼𝗿𝗸 𝗛𝗼𝘂𝗿𝘀 | ❌ 𝗡𝗲𝘃𝗲𝗿 𝗢𝘂𝘁𝘀𝗼𝘂𝗿𝗰𝗲𝗱 | 📩 𝗙𝗮𝘀𝘁 𝗮𝘂𝗱𝗶𝘁 𝗶𝗻 𝟮𝟰𝗵 I help companies cut infrastructure costs 2x by migrating from expensive cloud and SaaS solutions to efficient private cloud environments built on Proxmox and Ceph. Whether you're paying too much for cloud, struggling with scaling, or dealing with unstable infrastructure - I design and implement systems that are faster, cheaper, and easier to manage. I work with high-load production environments: clusters with 1000+ VMs, petabyte-scale storage, and fully automated infrastructure. What I can help you with: • Reduce cloud and infrastructure costs by 50–80% using Proxmox-based private cloud • Migrate from VMware, AWS, or other platforms to cost-efficient infrastructure • Build and optimize Ceph storage (RBD, CephFS, S3) for performance and reliability • Fix performance issues, instability, or scaling problems in existing clusters • Design HA architecture with backup and disaster recovery • Automate infrastructure using Puppet and provisioning pipelines Typical problems I solve: • Infrastructure costs are too high and keep growing • Cloud bills are unpredictable • Ceph clusters are slow, unstable, or constantly rebalancing • Proxmox clusters break, failover doesn’t work, or nodes drop • Backup systems are unreliable or too slow • Monitoring systems (Zabbix) overloaded and ineffective Why clients work with me: • 20+ years in enterprise infrastructure • 200+ real-world projects (not lab setups) • Experience with large-scale production systems • Focus on measurable results: cost reduction, stability, scalability Technologies I use: Proxmox VE, Ceph, Zabbix, Puppet, BGP, VPN, HA clusters, Backup & DR systems If your infrastructure is getting expensive, slow, or hard to manage — I can fix it or rebuild it properly.

I am Professional with 3+ years of experience in IT Networks & System Administration. I got a Bachelor's degree in IT. I am CCNA and MCSE Certified individual. I can assist in providing both hardware & Software-based IT Network amd System Support. I am experienced in following Domains: • Configure Network Devices • Configuration VPN Services • Firewall Implementation • Windows Server & Active Directory • Linux Administration • IT Hardware & Software Support • Endpoint Security Solution Deployment and Management • MDM Solution Deployment and Management • Servers Deployment and Management

I am a highly skilled network troubleshooter with 10+ years of experience in the networking and security field. As a certified CCNA, CCNP (Enterprise & Security), CCSA, NSE4, MTCRE, and MTCNA professional, I specialize in custom project-based solutions that enhance network performance, security, and scalability. I have hands-on experience in Banking, Corporate, Garments networks, Security Projects, and Managed Service Providers (MSPs), delivering high-quality, reliable, and detail-oriented solutions tailored to business needs. Key Skills & Expertise: ✔ Network Troubleshooting & Optimization ✔ Routing Protocols – BGP, OSPF, EIGRP, RIP ✔ Switching Technologies – VLAN, STP, PVST, VTP, LACP, PAgP, Bridge ✔ Security & Firewalls – Cisco FTD, Checkpoint, FortiGate, Sophos ✔ VPN Solutions (Multi-Vendor) – IPsec, GRE, L2TP, PPTP, IPIP, EoIP, PPPoE ✔ Access Control (ACLs) – Cisco Routers & Switches ✔ Wireless & LTE – Channel Bonding, MIMO, WDS, Mesh Networks ✔ QoS & Traffic Optimization – FIFO, RED, SFQ, PCQ ✔ MikroTik Expertise – Load Balancing, Failover, Bandwidth Management, Web Proxy, DHCP, PCC/PBR Routing, Static NAT/PAT, SNMP, Scripting Professional Certifications: 🏆 Fortinet Network Security Expert (NSE4) 🏆 Checkpoint Certified Security Associate (CCSA) 🏆 Checkpoint Certified Security Expert (CCSE) 🏆 Palo Alto Networks Certified Network Security Engineer (PCNSE) 🏆 Cisco Certified Network Professional (CCNP-Security & CCNP-Enterprise) 🏆 Cisco Certified Specialist - Enterprise Core 🏆 Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation 🏆 Cisco Certified Network Associate (CCNA) (Cisco-ID: CSCO13422865) 🏆 MikroTik Certified (MTCNA, MTCRE) I am committed to delivering top-tier network security and performance solutions with a dedication to excellence. Let’s collaborate to take your network infrastructure to the next level!

I have years of experience designing, deploying, and managing networks for small and medium businesses. I can provide one-time or ongoing services for your business. I have extensive experience with Ubiquiti (Unifi & UISP), Cisco/Meraki, Watchguard, and Sonicwall technologies. I work well independently, or can also work collaboratively with internal IT teams, contractors or service providers.

Intensive Cisco/Adtran/Netgear/SonicWALL/Ubiquiti/Fortinet/Palo Alto/HP/Aruba Knowledge VLANs, QoS, STP, Web Filtering, IPS/IDS, Subnetting/Suppernetting LAN, WLAN, MAN, WAN Active Directory, DNS, DHCP Microsoft Azure Microsoft Viso Microsoft Excel Microsoft Server 03, 08, 10, 12, 16 Windows XP, Vista, 7, 8, 10, 11 Microsoft 365 Microsoft Hyper V VMware Scripting Teaching Leadership

Your network is the backbone of your business. I make sure it's secure, reliable, and built to scale. I'm a CCNA-certified Network & Security Engineer with 10+ years of hands-on experience designing, securing, and managing enterprise-grade infrastructure for SMBs, MSPs, and growing businesses. From firewall hardening to full data center virtualization — I deliver end-to-end solutions that work in the real world, not just on paper. I don't just configure and disappear. I document everything, communicate clearly throughout the project, and make sure you understand your own infrastructure before I close the engagement. 🔐 Network Security & Firewall FortiGate, Palo Alto, SonicWall, Sophos, Cisco Meraki — design, deploy & harden Firewall policy design, NAT, segmentation & least-privilege access HA cluster setup & failover optimization Site-to-Site & Remote Access VPN (IPsec, SSL) SD-WAN planning and deployment Network security audits & remediation 🌐 Routing, Switching & WAN Cisco & MikroTik router/switch configuration Multi-WAN failover, load balancing & policy-based routing VLAN design, trunking, inter-VLAN routing QoS, traffic shaping & bandwidth management 📶 Wireless LAN UniFi & Cisco wireless deployments Multi-SSID with VLAN isolation Guest WiFi security & bandwidth controls AP placement, coverage planning & interference diagnostics 🖥️ Virtualization & Data Center VMware vSphere, Hyper-V, Proxmox — design, deploy & manage Full virtual networking (vSwitch, port groups, VLANs) Veeam Backup & Replication — scheduling, retention & recovery testing VMware Horizon & Citrix VDI environments ☎️ VoIP & Communication FreePBX & Asterisk-based phone systems Extension setup, IVR configuration & ongoing support VPN over WiFi for secure multi-location connectivity 🗂️ Windows Server & Active Directory AD setup, OU structure, group policies & user management DHCP, DNS, IP addressing & server hardening Remote access design & secure connectivity 🔧 Troubleshooting & Support Live troubleshooting & real-time guidance Packet flow analysis, DHCP/DNS issues, IP conflicts Slow network diagnostics & performance optimization Firewall rule reviews & security posture assessments Why clients choose me: ✅ End-to-end ownership — I handle design, deployment, and documentation ✅ Clear communication — no technical jargon unless you want it ✅ Production-ready configs — tested, documented, and handover-ready ✅ Fast response — I'm available and responsive throughout your project ✅ Honest scoping — I'll tell you exactly what you need, nothing more Whether you need a quick firewall fix, a full network redesign, a virtualization rollout, or just an expert second opinion on your current setup — I'm here to help. 📩 Message me with your project details. I offer a free 15-minute consultation to scope your needs and I typically respond within a few hours.

DevOps and Linux engineer with 4+ years running production infrastructure for businesses that cannot afford downtime. 100+ projects delivered on Upwork at a 96% success rate, currently managing systems that handle millions of requests a day. Most clients reach out for one of three reasons. Something broke and they need it fixed fast. They are scaling and their setup will not hold. Or they want someone to review their cloud and tell them honestly what is wrong. I handle all three, find the root cause, fix it properly, and document everything so your team can maintain it. ☁️ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 AWS, Azure, GCP, Oracle Cloud, DigitalOcean, Hetzner. Kubernetes (EKS, GKE, AKS, K3s), Docker, Terraform, Ansible. CI/CD pipelines with GitHub Actions, GitLab CI, Jenkins, and ArgoCD. GitOps, zero-downtime deployments, autoscaling, cloud migration, and cost optimization. 🐧 𝗟𝗶𝗻𝘂𝘅 & 𝗦𝗲𝗿𝘃𝗲𝗿 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 Ubuntu, Debian, RHEL, Rocky, AlmaLinux. Nginx, Apache, LiteSpeed, HAProxy. Server setup and hardening, SSL, performance tuning, cPanel, WHM, Plesk, WordPress hosting, backups, and disaster recovery. 🌐 𝗡𝗲𝘁𝘄𝗼𝗿𝗸, 𝗗𝗡𝗦 & 𝗘𝗺𝗮𝗶𝗹 WireGuard, OpenVPN, NAT and floating IP routing, firewalls, and DNS architecture. Email deliverability (SPF, DKIM, DMARC, BIMI), mail servers (MailCow, Postfix, iRedMail, Amazon SES), and VoIP (Asterisk, FreePBX, SIP). 🛡️ 𝗖𝗹𝗼𝘂𝗱𝗳𝗹𝗮𝗿𝗲 & 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 Cloudflare WAF, DDoS and bot mitigation, Zero Trust, Tunnels, and load balancing. DevSecOps, Vault secrets management, fail2ban, and full security audits. 📊 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 & 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 Prometheus, Grafana, Datadog, Dynatrace, Splunk, CloudWatch, and ELK. Logging, alerting, and observability that catches problems before your users do. Python and Bash automation throughout. ✅ 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗸𝗲𝗲𝗽 𝗵𝗶𝗿𝗶𝗻𝗴 𝗺𝗲 I communicate clearly and give honest timelines. I own the problem instead of handing it back. I leave you with clean documentation. And I am there when production breaks, including outside business hours. If your infrastructure is unstable, your costs are climbing, or you just need a reliable engineer who takes responsibility for the outcome, send me a message. Happy to review your setup and tell you honestly what I would do. Ali

Accomplished Network Engineer with a decade of industry experience in designing, implementing, and optimizing complex network solutions. Expert in deploying robust network architectures across multiple platforms and environments, including Cisco, Microsoft, Fortinet, Sonicwall, HP and Juniper systems. Proven track record of enhancing system functionality and reducing downtime through strategic network improvements and preventive maintenance. - Network architecture design and strategic roadmap for your business. - Security Solution Design and Implementation: Developing tailored security frameworks that align with your business needs and compliance requirements. - Vulnerability Assessment and Penetration Testing: Identifying vulnerabilities in your network and applications to prevent potential attacks. - Ongoing Network Monitoring and Management: Ensuring continuous monitoring and immediate response to security incidents. - Compliance and Security Audits: Evaluating systems to ensure adherence to regulatory standards and best practices. - Training and Advisory Services: Providing cybersecurity training to your team to enhance security awareness and practices.

✨A network engineer with more than 10 years of relevant experience✨. Having experience dealing with clients from various industries(Service provider, BPO, Pharmaceutical and Retail), I am sure to provide value to customers with their needs through my various experience. ✨Professional Background✨: Exposed to being an engineer for service provider and enterprise clients. Having experience to both being in operations and implementation. Technology Expertise: ✨ Experienced with configuring and troubleshooting with various dynamic routing protocols(EIGRP, OSPF, BGP, MPLS). ✨ Experience with configuring various HA protocols such as HSRP. VRRP and VPC. • Exposure as well to multiple SD-WAN platforms such as Versa and Cisco SD-WAN. • Able to assist in creating/updating network topologies. ✨ Configure and troubleshoot various firewall devices such as Cisco ASA and Palo Alto. ✨ Troubleshooting and configuring router/switches such as Cisco Nexus, ASR, Meraki routers/switches.