Hire the Best RTLinux Specialists

I help businesses secure and optimize Linux infrastructure, firewalls, VPNs and virtualization environments. Specialized in: Network & Security: OPNsense | pfSense | Wazuh SIEM Wireless & Infrastructure: Ubiquiti UniFi Ecosystem Virtualization & Backup: Proxmox VE | Proxmox Backup Server VPN & Connectivity: WireGuard | OpenVPN | Cloudflare Tunnel SysAdmin & DevOps: Linux Servers | Docker | Reverse Proxy Core Services: Network Troubleshooting | Infrastructure Hardening I work mainly with: VPN issues Firewall configuration Secure remote access Reverse proxy problems Linux server deployments Monitoring and log analysis High availability environments I focus on fast troubleshooting, security best practices and stable infrastructure delivery. If you need someone to solve infrastructure and security problems quickly and professionally, let’s talk.

🏆 UPWORK EXPERT-VETTED | NETWORK & SECURITY ENGINEER / ARCHITECT 🏆 I’m a Network & Security Engineer / Architect with 17+ years of experience and 15,000+ hours on Upwork. I design, secure, and optimize enterprise, ISP, data center, and cloud networks — focused on performance, scalability, and security. 🔹 CORE EXPERTISE Networking & Infrastructure Vendors: Cisco, Juniper, MikroTik, Arista, Dell, Ruckus, Mellanox, Ubiquiti, Aruba Technologies: BGP, OSPF, MPLS, VXLAN, EVPN, QoS, Load Balancing Firewalls & Security Fortinet, Palo Alto, Sophos, SonicWall, Zyxel, PFSense NGFW, IPS/IDS, Zero Trust, DDoS Mitigation, Web Filtering, SIEM Integration ISP & Broadband Huawei, ZTE, MikroTik, Netonix GPON/XG-PON, CGNAT, PPPoE, RADIUS, IPv6 Migration VPN & Remote Access IPSec, OpenVPN, WireGuard, DMVPN, SSL VPN, SD-WAN, V2Ray Cloud & Virtualization AWS, Azure, VMware, Proxmox, KVM, Hyper-V Linux (Ubuntu, Debian, CentOS, BSD) Monitoring & Automation PRTG, Grafana, LibreNMS, Zabbix, NetBox 📜 CERTIFICATIONS Cisco: CCNP / CCNA / CCDA / CCDP Juniper: JNCIS / JNCIA Ruckus: RCNI / RONE / RASZA / RICXI / RCWA HPE: HPE-Hybrid Cloud Fortinet: NSE4 💼 SERVICES Network Design & Optimization (Enterprise, ISP, Data Center) Firewall & Security Hardening (NGFW, IPS/IDS, Zero Trust) Cloud & Hybrid Networking (VPC, Peering, Transit Gateway) VPN & Secure Remote Access (IPSec, SSL, SD-WAN) ISP & Broadband Engineering (BGP, MPLS, GPON, IPv6) Network Troubleshooting & Performance Tuning

ISP Network Engineer with 10+ years of experience in GPON, MikroTik, Linux, DNS, Email Infrastructure, and Hosting Operations. I have more than 10 years of hands-on experience operating real production environments, including an FTTH network, MikroTik routing platforms, GPON OLT systems, SmartOLT automation, hosting infrastructure, and business email systems. Recently received a 5-star Upwork review for DNS, Email Infrastructure, and Technical Operations support, with client feedback highlighting quality, problem-solving, and technical expertise. My experience comes from real operational environments rather than lab-only setups. I work daily with customer provisioning, PPPoE services, network troubleshooting, DNS management, hosting infrastructure, and email delivery systems. ISP & Network Operations • MikroTik RouterOS Administration • GPON OLT Administration (ZTE C620 / C650) • SmartOLT Deployment & Automation • ONU Provisioning & Troubleshooting • PPPoE Services & Subscriber Management • VLAN Configuration, Routing & Switching • VPN & WAN Failover Solutions • ISP Customer Provisioning & Operations Linux, Hosting & DNS • Ubuntu Linux Administration • VPS & Hosting Management • cPanel & WHM Administration • DNS Troubleshooting & Migration • Cloudflare Administration • SSL Certificates • Website & Email Migration • WordPress Hosting & Troubleshooting Email Infrastructure • Microsoft 365 Administration • Google Workspace Administration • SPF, DKIM, DMARC & MX Records • Email Deliverability Troubleshooting • Email Routing & Forwarding • SMTP Configuration I focus on identifying root causes, solving technical issues efficiently, and building reliable solutions that work in real production environments. Available for GPON, MikroTik, SmartOLT, Linux, DNS, Email Infrastructure, Hosting, WordPress, ISP Operations, and Network Troubleshooting projects.

IT Expert with 8+ years of experience in Managing Windows and Linux-based server infrastructures, Network security and administration, and software solutions. Here are some major services on which I am working: ☑️- Server Administration : ✔️ Windows server : Intune , ADDC, DNS, DHCP, WSUS, Group Policy Management, RDP Server, WDS Server, IIS Server, MS Exchange Server, MS SharePoint, MS Office 365, MS One Drive, MS Teams, File Server (NAS & SAN) , FTP, NTP and many more ✔️ Linux Server : SAMBA ADDC LDAP, SAMBA File Server, DNS, DHCP, Mail Servers (Zimbra, PMTA, Send grid, Squirrel mail, Roundcube). Web Servers (Tomcat, apache, nginx, light speed), MySQL, MariaDB, Postgres, FTP, NTP, Ticketing tools (Manage engine, OS ticket, OTRS Ticket, Citrix XenApp, JIRA, Service now), Monitoring Tools ( Check_mk, Syslog, Nagios, Cacti, ELK Stack, Zabbix, PRTG), IDS Server ( OSSEC, WAZUH, SNORT, Suricata, BRO, Tripwire, Security Onion), DLP/Encryption/ Threat Prevention Server ( Symantec, Sophos, McAfee), Threat Intelligence server (MISP, Mitre, OpenCTI), The Hive with Cortex, ArcSight Server, Dialer Server ( VCdialer, go autodialer, ViciBox, Altitude Dialer), Virtaul Hypervisor ( VMware ESXi, Proxomox, Virtual Box, VMware Workstation), GenieACS TR-069 remote management server, Vulnerability Assessment Scanner Tools (OpenVAS, Nessus Professional, Wireshark, Comodo cWatch, Tripwire IP360) , SonarQube Code analysis Tool, NXfilter URL Filtering tool and Many More.. ☑️- Network Administration: Key Network Skills & Security Products Experience: o Firewall – Checkpoint, Cisco ASA, Palo Alto, Fortigate, Sophos, o Router & Switches : Cisco, Mikrotik, Ubiquiti, Netgear, Aruba o Intrusion Detection & prevention – Cisco, Checkpoint, Sophos o Switching: Vlan, Inter Vlan, Stp, Vtp, EtherChannel, Switch Port o Configuration and troubleshooting of routing protocols OSPF, RIP, EIGRP, BGP o Setup of security implementations (Filtering Tool ACL, route map, port security.) o Well versed in the operations, configuring, and troubleshooting of various issues in Checkpoint and Cisco, Mikrotik, Ubiquiti, Netgear & and Aruba Devices. o Checkpoint IPSec VPN Blade, Application & URL filtering Blade, IPS Blades, o Configuration & troubleshooting of IPSEC and S2S VPN ☑️- Information Security I help organizations stay compliant with all the important standards like PCI DSS, HIPPA, ISO 27001, GDPR, FISMA, and GLBA. In addition to these compliances, I also help companies with Information Security Assessments and Penetration and vulnerability Testing for identifying loopholes in their security infrastructure and BCP/DR consulting for building programs to stay ahead of future security incidents. ☑️- Cloud Solutions: I Help organizations to deploy their services on AWS, GCP, and Microsoft Azure cloud & Freshservices. Projects not for me: ✖Asking to hack/crack/access someone else accounts, systems, social media, etc

👋 Greetings! I'm Vishaldeep Singh – Your ConnectWise Automate, Connectwise RMM, Datto RMM & Kaseya VSA Expert 🌟 Why Choose Me: With 10+ years of deep-rooted experience in the Managed Service Provider (MSP) industry, I don’t just understand MSP operations—I optimize them. Whether you're a startup MSP looking to build from the ground up or an established one aiming to refine automation and patching, I bring the expertise to transform your infrastructure. 🛠️ My Core Skill Set: 🔹 ConnectWise Automate (LabTech) Administration: From initial setup to advanced automation, I've helped over 30 MSPs design, optimize, and scale their Automate environments. 🔹 Datto RMM: I help MSPs fully leverage Datto RMM—from onboarding devices and policy setup to alert tuning and automation scripting. 🔹 Kaseya VSA: I'm experienced in deploying, configuring, and managing Kaseya VSA with advanced automation, monitoring, and patching workflows that reduce noise and boost technician efficiency. 🔹 Advanced Scripting: Skilled in PowerShell, VBScript, and native Automate/Datto/Kaseya scripting languages to create workflows, auto-remediations, and intelligent alerting. 🔹 Patching & Monitoring: 95%+ patch success rate across clients with proactive monitor sets, auto-fix scripts, and customized schedules. 🔹 Backup & Antivirus Management: Proficient with Datto, Veeam, Acronis, and Symantec backup tools. I also manage Webroot, ESET, and others with custom infection-response scripting. 🔹 Migrations & Integrations: I’ve led seamless migrations between RMM/PSA platforms and integrated tools like QuickBooks, Control, and Manage to build unified systems. 🔹 SQL & Reporting: Strong SQL knowledge for creating customized dashboards, monitors, reports, and integrations within ConnectWise Automate and Kaseya. 🔹 Windows & Virtualization: Experienced with Windows Server (2008–2019), AD, GPO, DHCP, DNS, Hyper-V, and VMware. 🔹 ConnectWise Control Expert: Branded portal setup, SSL, access configuration—everything you need for a professional remote support experience. 🕒 Always On Duty: My work doesn’t end at setup. I provide ongoing support, performance tuning, and documentation to ensure long-term value. I treat your MSP like my own. ✅ Let’s Talk Results: If you need someone who can walk in and immediately provide value—be it automation, noise reduction, patching hygiene, or RMM customization—I'm your guy. 🙏 Thank you for considering me as a trusted partner in your MSP journey. Let’s simplify, automate, and scale—together.

I am an IT Infrastructure and NOC Engineer with a background in Electrical and Computer Engineering, specializing in designing secure, scalable network systems, managing VoIP and SMS operations, and deploying modern data center solutions. I have hands-on experience in #IT support, networking, Linux systems, data center infrastructure, and network security. #Monitoring and troubleshooting network performance, SIP/RTP issues, KPIs (ASR, ACD, PDD), and trouble tickets #Ensuring service quality across VoIP, SMS, and telecom operations #I help clients troubleshoot technical issues, stabilize their IT environments, and secure networks through clear communication and professional documentation. What I can help you with: •monitor and analyze VoIP & SMS traffic, • Remote IT support (Windows & Linux) •Ensuring service quality across VoIP, SMS, and telecom operations • Network setup and troubleshooting (routers, switches, wireless) • VPN and firewall configuration • Server and data center infrastructure support • Network security fundamentals • Technical documentation and compliance support I am reliable, responsive, and focused on solving problems correctly the first time. Available for one-time tasks or ongoing IT support engagements.