Hire the Best Juniper Routers Specialists
in Serbia

Configure, monitor, and maintain routers and switches (access, aggregation, and service routers). Implement and troubleshoot dynamic routing protocols (BGP, IS-IS, OSPF) and static routing. Manage QoS policies including policing, shaping, and traffic prioritization. Analyze and resolve issues related to L2VPN, L2TP, NAT, TCP/UDP performance, and network slicing. Work with synchronization technologies such as PTP and SyncE, including troubleshooting PDV, servo states, and ESMC/SSM propagation. Support optical and transport technologies (DWDM, OTU4, OSC, SDH/SONET). Conduct network performance testing, monitoring (alarms, PDV measurements, interface utilization), and packet analysis (e.g., Wireshark). Provide expertise in access vs. service router roles and integration with SIP/SBC infrastructure. Document network designs, configurations, and troubleshooting procedures.

Network & IT Infrastructure Expert | Mikrotik | VPN | Linux | Cloud With 25 years of experience in IT infrastructure and network engineering, I specialize in designing, securing, and optimizing network systems for businesses of all sizes. Whether you need a reliable VPN solution, a secure network setup, or an optimized server infrastructure, I can help you achieve your goals efficiently. What I Offer: Mikrotik & Network Configuration – Routing, Firewall, VLANs, QoS, Wireless VPN & Secure Networking – WireGuard, OpenVPN, IPsec, GRE tunnels Linux System Administration – Ubuntu, CentOS, Debian, server automation Cloud & Backup Solutions – Veeam, Rsync, ZFS, Proxmox, Disaster Recovery Server & API Hosting – OpenStreetMap servers, self-hosted solutions Troubleshooting & Performance Optimization – Network monitoring, security hardening Web Development – Next.js websites, WordPress to Next.js migrations I have worked with businesses, startups, and enterprise clients to ensure their IT infrastructure is secure, scalable, and high-performing. My approach is straightforward – I analyze, optimize, and deliver solutions that just work. Let’s connect and discuss how I can help with your project!

I’m a Network Administrator and Network Engineer with 5+ years of hands-on experience designing, configuring, and maintaining enterprise network infrastructures. My primary focus is Cisco networking technologies, where I work with routing, switching, LAN/WLAN environments, network security, and SD-WAN solutions. I currently hold the Cisco CCNP Enterprise (ENCOR) certification and I’m actively preparing for the CCNP ENAUTO certification to further expand my network automation and programmability skills. I enjoy building stable, secure, and scalable network environments — from small business infrastructures to more advanced enterprise deployments. I’m experienced with Cisco ecosystem technologies, Fortinet security solutions, and network monitoring/identity management platforms. What I can help you with: * Cisco Routing & Switching * VLANs, STP, EtherChannel * OSPF, BGP, EIGRP * LAN/WLAN Configuration * SD-WAN Deployments * Fortinet Firewall Configuration * VPN Setup & Troubleshooting * Cisco ISE (802.1X & MAB) * Network Security & Access Control * LibreNMS Monitoring * MikroTik Configuration * Network Troubleshooting * Infrastructure Optimization I’m passionate about networking, problem-solving, and delivering reliable solutions that improve performance, stability, and security. If you’re looking for someone reliable who understands both enterprise networking and real-world troubleshooting, feel free to reach out.

I'm network and VOIP engineer with 11 years of experience. Over time I've completed the following certificates: 1. CCNA 2. CCNA security 3. CCNA wireless 4. CCNP - Not certified yet 5. MTCNA 6. MTCRE 7. Linux Essentials 8. LPIC-1 9. Sophos UTM Engineer 10. dCAA 11. 3CX I have experience with the following vendors: Cisco Cisco ACI MikroTIK Sophos UTM Fortinet Checkpoint HP Ubiquiti - Unifi Juniper Alied Telesis PfSense I can help you with: Router configuration WAN Failover VPNs - IPSec, L2TP, OpenVPN etc... Routing - Static, Dynamic including OSPF and BGP MPLS - L3VPN IPSec Firewall - Filter rules, mangle rules etc... FHRP VRF QoS Switch configuration Vlans FHRP Etherchannel Port security Voice Vlan Trunks Troubleshooting Wireless configuration Cisco WLC and LWAPs Ubiquity Unifi - AP, Switch, USG MikroTIK - I have probably configured 500+ MikroTIK devices VOIP 3CX PBX deployment on prem and in cloud Phone management SIP Trunk management DID management IVR Queues Ring Groups etc... Email security Sophos UTM email filter Spam Titan email filter DNS - SPF, DKIM, DMARC Reach out if you find this interesting and we can discuss the details about your project.

I am a Senior Network Engineer/Consultant with nearly 20 years of hands-on experience designing, building, securing, and supporting enterprise networks across globe. My approach is simple: I solve problems fast, apply best practices, and help businesses run reliable, secure, and scalable networks—without overcomplicating things. What I Do • Network architecture & design • Firewall engineering (Palo Alto, Fortigate, Cisco ASA/FTD/Meraki) • Routing, switching & wireless for small businesses, enterprises, and MSP environments • Cisco Catalyst Center (DNA Center) automation, assurance, and integrations • Cloud networking: AWS & Azure • Zero Trust, segmentation, VPN/IPsec, SD-WAN • Network audits, troubleshooting & optimization Core Technologies • Firewalls: Palo Alto (Pan-OS, Panorama), Fortigate (FortiOS), Cisco ASA, Firepower/FTD, Meraki MX • Cisco Routing & Switching • Wireless: Cisco, Meraki, Unifi • Automation & Tools: Cisco Catalyst Center (DNA Center), Ansible, APIs • Cloud: AWS networking, Azure networking Certifications • CCNP Enterprise • CCNA Security, Wireless, Collaboration, Enterprise Why Clients Hire Me ✔ Fast, clear communication ✔ High-quality network solutions that save time, money, and frustration ✔ Strong troubleshooting and root-cause skills ✔ Practical, business-focused engineering—no overengineering I help companies stabilize, secure, and modernize their networks so they can focus on what matters.

👑 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 ...