Network Infrastructure Engineer

We are looking for a Network Infrastructure Engineer to support and develop network infrastructure in a production/trading environment. Key Responsibilities - Administer and develop network infrastructure based on Cisco Nexus. - Configure and maintain VLAN, LACP, vPC, routing, BGP, and VPN ендпоінтс. - Work with Palo Alto Networks, including firewall policies, NAT, routing, Site-to-Site VPN, and troubleshooting. - Build and maintain connectivity between data centers, providers, and partners. - Organize cross-connects in data centers and coordinate with providers and remote hands. - Configure and maintain AWS Direct Connect and Azure ExpressRoute / VPN connectivity. - Troubleshoot network issues in production environments, including latency, packet loss, routing, firewall, VPN, and physical connectivity issues. - Support network connectivity for Windows and Linux servers. - Monitor the availability and health of network infrastructure. - Document, standardize, and automate network equipment configuration using Ansible. - Manage cloud network infrastructure using Terraform / Infrastructure as Code. - Participate in designing and maintaining fault-tolerant and highly available network architecture. Requirements - 5+ years of experience in Network Infrastructure Engineering role. - Strong knowledge of TCP/IP, VLAN, STP, LACP, NAT, ACL, DNS, and routing. - Hands-on experience with BGP. - Experience with Git and CI/CD practices for Infrastructure as Code. - Experience administering Cisco network equipment, preferably Cisco Nexus. - Hands-on experience with Palo Alto Networks or similar enterprise firewalls. - Experience configuring and troubleshooting IPsec Site-to-Site VPNs. - Understanding of Data Center networking and cross-connect connectivity. - Practical understanding of networking in AWS and/or Azure. - Experience using Ansible for network infrastructure configuration and automation. - Experience using Terraform. - Systematic approach to troubleshooting and experience handling production incidents. - Experience with network monitoring and logging tools such as SNMP, Syslog, Grafana, Zabbix, or similar solutions. - English proficiency at B1+ (sufficient for working with technical documentation and communicating with international providers). Nice to Have: - Experience with AWS Direct Connect / Azure ExpressRoute. - CCNA, CCNP, or Palo Alto certifications. - Experience with Python or PowerShell. - Experience working in FinTech, Trading, or other high-availability environments. - Experience with VXLAN/EVPN and advanced Cisco Nexus networking. What we offer: - 20 paid vacation days per year - 10 paid sick leave days per year - Public holidays as per the company’s approved Public holiday list - Medical insurance - Opportunity to work remotely - Professional education budget - Language learning budget - Wellness budget (gym membership, sports gear and related expenses)