Hire the Best Antispam and Antivirus Specialists in Belgrade, RS

Infrastructure & Security Specialist specializing in Linux, VMware, Hyper-V, Windows Server, Oracle databases, infrastructure troubleshooting, security incident response, virtualization, and production systems support. I help businesses investigate security incidents, recover compromised Linux and WordPress environments, harden infrastructure, stabilize production systems, and resolve complex hosting, virtualization, and server issues. My experience includes: ✔ Security incident response & malware remediation ✔ WordPress malware removal & website recovery ✔ Server hardening & security auditing ✔ SSH, access control & authentication hardening ✔ VMware & Hyper-V virtualization ✔ Windows Server administration ✔ Linux systems administration ✔ Oracle Database administration & troubleshooting ✔ Infrastructure troubleshooting & performance analysis ✔ RAID, storage & recovery diagnostics ✔ VPS, dedicated server & hosting environments ✔ Backup & disaster recovery support ✔ PowerShell & Bash automation ✔ Email, DNS & server migrations ✔ Monitoring, stability & capacity planning Recent projects include security incident response and malware remediation across 155+ WordPress websites, Hyper-V VM scaling and performance stabilization, RAID recovery diagnostics on HPE servers, Linux/WHMCS migrations, Oracle environment troubleshooting, mail infrastructure troubleshooting, and production environment recovery. I focus on identifying root causes quickly, minimizing downtime, and delivering practical, production-ready solutions for critical systems and business infrastructure.

Hello, My name is Djordje. Im experienced NOC engineer. From 2009 I’m working in sphere of internet technologies. My first job was technical support at YUBC net ISP company. Also I worked for Orion ISP company as NOC engineer, after Orion i was also worked as NOC engineer at Telenor mobile company. Now i work at Telesign company also as NOC engineer. I like to learn new stuff, and my interests are networking. I m also at basic level of Linux admistration knowledge. Since 2021. I started Cyber Security path in my career, so I first work as Information Security Analyst for 2 years, gain ComTia Security + Certificate and moved forward as Security Engeener. I have lot of expirience with cyber security procedures, can help with gaining Cyber Essentials and Cyber Essentials Plus certificates

👑 Expert Vetted - Top 1% of all Upwork Freelancers - Top Rated Network and Cloud Engineer. - 300+ projects and 7000+ Upwork hours up to date. - 600k+ earned on Upwork. Networking vendors I have worked with: * Cisco, Mikrotik, Fortigate, Ubiquiti, Vyatta, VyOS, pfSense, Sonicwall, Sophos XG, Watchguard, Brocade, Ruckus, HP, Huawei, HPE, Aruba, Arista, etc. Cloud Skills: Terraform (AWS, Azure, GCP) AWS - VPC, EC2, RAM, R53, LB, S3, IAM/SSO, various NGFWs, Terraform. Azure - AD, AADDS, S2S VPNs, VMs, LB, NGFWs, Azure Hub-Spoke, Terraform. GCP - Cloud Compute, Security, NGFWs, Terraform. Digital Ocean Vultr ...