Senior Network Engineer

We are looking for a Network Infrastructure Engineer to join our fintech product team and work with network infrastructure in a production environment.
The role covers data center and cloud networking, network security, high availability, troubleshooting, and infrastructure automation.
If you enjoy complex networking, troubleshooting real production issues, and improving infrastructure rather than simply maintaining it, this role could be a great fit for you.
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 enterprise firewalls.
Experience configuring and troubleshooting IPsec Site-to-Site VPNs.
Understanding of Data Center networking and cross-connect connectivity.
Systematic approach to troubleshooting and experience handling production incidents.
Experience with network monitoring and logging tools.
Professional level of English.
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.
Experience with Palo Alto Networks
Experience using Terraform
Practical understanding of networking in AWS and/or Azure
Experience using Ansible for network infrastructure configuration and automation
Experience with network monitoring and logging tools: SNMP, Syslog, Grafana, Zabbix, or similar solutions.
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)

Work arrangement
Yes