Hello, I’m a Senior Network & Systems Engineer with over 12 years of professional experience in ISP operations, enterprise network infrastructure, firewall security, VPN deployment, and remote IT support. I have hands-on expertise in managing large-scale network environments, troubleshooting complex connectivity issues, and ensuring stable, secure, and optimized infrastructure for business operations. Core Expertise: Advanced configuration & troubleshooting of Routers, Switches, and Layer 2/Layer 3 networks Firewall deployment & security hardening (Sophos, Fortinet) VPN setup (Site-to-Site, IPsec, SSL VPN, Remote Access) Server installation, configuration & performance optimization (Windows environments) VoIP systems support Network monitoring, incident response & root cause analysis ISP-level bandwidth management & user session handling Remote Work Capability: Secure access via SSH, RDP, VPN, AnyDesk, TeamViewer Clear documentation & structured handover Coordination with on-site technical teams when required Stable high-speed internet with backup connectivity Flexible availability across time zones I understand that businesses depend on secure, stable, and high-performing network systems. My approach focuses on reliability, security, fast resolution, and long-term stability — not just temporary fixes. I’m ready to discuss your requirements, define the scope clearly, and deliver results efficiently. Best regards, Sitaram Banskota Senior Network & Systems Engineer | ISP & Enterprise Infrastructure Specialist