Hire the Best Software Defined Networking (SDN) Specialists
in Ukraine

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Andriy P.

Sumy, Ukraine

$40/hr
5.0
87 jobs

Expert Network & Systems Engineering: VPN solutions, OpenWRT firmware customization, containerization with Docker/Kubernetes, thorough network monitoring, and resilience. Experience: Specialized in elevating server and network infrastructures, my VPN works encompass versatile use cases such as remote access, inter-office connectivity, secure client/end-point communication, and Internet access. Core Skills: - Expert in VPN Configuration and Management of various protocols - OpenWRT Firmware Customization - Cultivated expertise in a variety of networking platforms, such as MikroTik, OpenWrt, UniFi, and more - Proficient with Docker Containers and Orchestration, CI/CD pipelines Professional Philosophy: Commitment to delivering user-friendly, reliable, and easy-to-maintain solutions. Striving to demystify network challenges for clients and enable them to concentrate on their core business activities. My vision as a Network and Systems Engineer is to deliver solutions that provide seamless, efficient communication and operations for end-users. Contact me for network engineering expertise that advances your infrastructure in line with contemporary practices and business objectives.

  • Network Engineering
  • Computer Network
  • SSL
  • VPN
  • Network Equipment
  • Linux
  • Linux System Administration
  • MikroTik RouterOS
  • OpenVPN
  • Firewall
  • OpenWrt
Valentin L.

Kyiv, Ukraine

$40/hr
4.9
7 jobs

PROFILE GENERAL Experienced Network Engineer | Cybersecurity Specialist | IT Infrastructure Expert 🔹 Vade in expertis🔹 🔹Citius, altius, fortius 🔹 What I Do Best: * Network Engineering: Advanced routing, switching & optimization using Cisco, Meraki, Ruijie, Extreme Networks, Aruba, Juniper, HPE, Dell, Mikrotik, ZTE. * Cybersecurity: Fortigate, Palo Alto Networks, VPN (IPSec/SSL), MFA, SSO, Cortex XDR, DPI control, NAT, SSH management, threat prevention. * Cloud & Virtualization: AWS, Azure, Google Cloud, VMware, Proxmox, OpenPallet, clustering, backups, disaster recovery. * Protocols & Services: BGP, OSPF, MPLS, SIP gateways, VoIP/PBX, AD, load balancing, production & factory network integration. * Infrastructure Design: Data centers, IDF/MDF layouts, server rooms, telecommunications, industrial machine connectivity. Why Clients Choose Me: ✅ 10+ years in enterprise networking, cloud, and cybersecurity. ✅ Expert with multi-vendor environments (Cisco, Fortigate, Palo Alto, Aruba, Juniper, HPE, Dell, VMware, Mikrotik & more). ✅ Proven success in manufacturing, energy, media, and service sectors. ✅ Clear, friendly communication without the jargon. I Can Help You With: Configuring *switches, firewalls, routers, wireless, servers, clusters, hosts**. * Designing and implementing secure, high-performance IT infrastructures. * Troubleshooting complex issues (IPSec tunnels, SSL sessions, SIP gateways, DPI, NAT). * Modernizing outdated networks for speed, stability, and compliance. * Coordinating with vendors for seamless integrations. Industries Served: Manufacturing | Energy | Media | Distribution | Industrial | Technology | SaaS 💬 Let’s connect — whether you need a secure new setup, a performance boost, or 24/7 reliability, I’ll deliver results you can count on. SOFT SKILLS and ABILITY Responsible for the consequences. My actions admitted. Honest at all time. Result orientation. Great communication and very polite. I'll be happy to assist with: Configuring - Swithces/Firewalls/Routers/Wirless/Servers, Host, Node, Claster of Servers, Virtualization, Backup, Production and Factoring Design and Implementation - Switching, Telecommunications, IDF/MDF, Server-room, Cybersecurity, VPN, AS LIR, VoIP/PBX, Comminication. Troublsooting and Moderniztion IPSEC Tunnel, SSL Session, DPI Control, SIP Gateway, Tech Consult, Service Support, Industrial Machines, Media, Customer Support, Distribution maintannace, Energy, AWS, Google Cloud, Microsoft Azure, AD, NAT, SSH Management. Work with vendors - Cisco, Meraki, Ruiji, Extreme Network, Aruba, Juniper, HPE, DELL, PALO ALTO NETWORKS, FORTIGATE, VMware, Proxmox, OpenPallet, Mikrotik, CentOS, Ubuntu, Debian

  • Network Engineering
  • Computing & Networking
  • Cybersecurity Management
  • Palo Alto Firewalls
  • Network Access Control
  • Network Design
  • Network Security
  • Routing
  • Cisco
  • FortiGate Firewall
  • Linux System Administration
  • Network Administration
  • Firewall
  • Network Architecture
  • Virtual LAN
Mykola Y.

Kyiv, Ukraine

$50/hr
4.1
17 jobs

- 12+ years operating enterprise infrastructure, network, cloud, and security systems. - Strong production ownership mindset: reliability, monitoring, documentation, secure access, and incident response. - Designed infrastructure supporting 3000+ IoT devices across distributed locations. - Managed virtualization environments with 100+ virtual machines across Proxmox / VMware / Hyper-V-style platforms. - Built monitoring with Zabbix / Prometheus / Grafana / PRTG, improving visibility across 1000+ nodes and reducing incident response time. - Strong firewall, VPN, segmentation, DNS, routing, and secure connectivity background. - Hands-on with Azure networking, OCI, hybrid cloud, Active Directory, Windows Server, Linux, Docker, and reverse proxies. - Security-focused operator with experience in audits, hardening, access control, disaster recovery, and Fortinet security technologies. - Comfortable with evidence-based change control, production readiness checks, and saying “not ready” when required evidence is missing. - Strong written documentation and knowledge-base development experience.

  • Network Engineering
  • Computer Network
  • Computing & Networking
  • VPN
  • Firewall
  • Network Security
  • Load Balancing
  • Network Administration
  • Microsoft Exchange Server
  • Fortinet
  • Information Security
  • HAProxy
  • Linux System Administration
  • FortiGate Firewall
  • Network Equipment
Harb A.

Odessa, Ukraine

$59/hr
5.0
53 jobs

Over 13 years of experience in Enterprise network solutions, design, implementation & Operations. List of solutions experience: A) Routing & Switching: Cisco ISR, ASR(IOS/IOS-XE), Nexus N5K, N7K, C2960, C3650, Catalyst 9K, SG500X, Brocade/Ruckus, HP Mellanox SN2000, QoS, BGP, OSPF, EIGRP, STP, VLAN, VPC B) Networks Security: Cisco FirePower, ASA/FTD, Juniper ISG, Fortigate 501E 201E, FortiAnalyzer/FortiManager, PaloAlto PA-5200, Cisco ISE (Tacacs+ / Radius), SecureWorks, SonicWall, pfsense, Meraki MX, Cisco Umbrella, DUO 2FAC C) Wireless Networks: Cisco WLC 9800 | Cisco 9100 series AP , FlexConnect / Mobility Express, Meraki MR D) Remote Access | VPN: CiscoAnyConnect, Prisma, Zscaler E) Network Performance Optimization: Riverbed Steelhead F) Monitoring: Solarwinds, Nagios, Netscout G) Cloud computing - AWS H) IT service mgmt. | IT vendor mgmt. | IT service delivery mgmt. | Project mgmt. Continuously pushing to leverage technology, and identify better methods to enhance customer experience, and deliver on time with highest quality.

  • Project Delivery
  • Architectural Design
  • AWS Cloud9
  • Palo Alto Firewalls
  • Cisco Certified Network Associate
  • Cisco WLC
  • Cisco ISE
  • Cisco Router
  • Project Plans
  • Cisco Certified Network Professional
  • Data Center Operations
  • Security Infrastructure
  • Wireless Network Implementation
  • IT Service Management
Dmytro Y.

Ternopil, Ukraine

$50/hr
4.9
118 jobs

I have more then 7 years experience in networking (routing,VPN, link reservation(failover), trafic priority etc. ), and more then 15 years of design and develop ERP systems for milk, beer, agro and other production industry. 2017-04-01 MikroTik MTCNA 1704NA7632 2017-04-14 MikroTik MTCWE 1704WE8685 2017-04-28 MikroTik MTCRE 1704RE10039 I love my job and hope you need my skills. I would be happy to communicate with interesting people.

  • Network Engineering
  • MikroTik
  • VPN
  • Network Design
  • Mikrotik RouterBOARD
  • MikroTik RouterOS
  • LAN Implementation
  • OpenWrt
  • Microsoft Visual Studio
  • FTP
  • Scripting
  • VoIP Administration
  • Wireless Network Implementation
  • Routing
Petro L.

Irpin, Ukraine

$199/hr
5.0
65 jobs

I am a Senior Embedded Linux Programmer and IT/Infrastructure Consultant with nearly 40 years of overall development experience. I specialize in getting tough hardware and networking projects off the ground—or rescuing existing projects that have hit a wall. Because my background spans the entire stack—from bare-metal custom Linux kernels to advanced enterprise server configurations—I can troubleshoot and build systems that most single-discipline developers cannot. Here are my core areas of expertise: • Embedded Linux & BSP: Custom firmware, kernel drivers, and deep optimization for SoC boards (Raspberry Pi, Orange Pi, NanoPi, etc.). I have extensive experience with Buildroot, Yocto, MAC-PHY communication, and precision timekeeping (PTPv2/IEEE 1588v2). • Networking & Telecom: 7+ years building 4G/LTE protocols (MAC-level, EPC, QoS). I regularly handle BGP routing issues, VPN implementations (IPsec/StrongSwan), and complex traffic convergence. • Edge AI & Computer Vision: Building optimized pipelines for video surveillance, real-time object tracking, and deploying AI models directly on edge devices. • Infrastructure & Email Systems: Advanced Postfix customization. I routinely design secure email obfuscation workflows, generate robust SPF/DKIM records for domains, and manage complex DevOps tasks like cloud migrations and remote work infrastructure. Zabbix and Grafana infrastructure monitoring, custom agents, alerting and visualization. Past Successes: • Led the full-lifecycle development of the MaxBridge 4G solution, successfully deployed across four countries. • Core BSP Engineer on the highly successful Carsifi project. • Rework old systems with new core elements, incorporating existing hardware protocols. I don't just write code; I solve system-wide problems. If you need someone who understands exactly how your hardware talks to your network, send me a message and let's discuss your project.

  • Email Deliverability
  • System Analysis
  • Wireless Communication
  • C
  • Embedded Linux
  • System Programming
  • Embedded System
  • DNS
  • Driver Development
  • Firmware
  • Firmware Programming
  • Postfix SMTP Server
  • ESP32
  • Software Consultation
  • VPN

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