Network Security Engineer

What you will do

• Operate, administer, and evolve the company’s network security infrastructure
• Automate routine firewall operations and policy management using Python and APIs
• Investigate network and security incidents; perform traffic analysis and root cause identification
• Collaborate with IT, DevOps, and Security teams to implement secure network designs
• Document configurations, topologies, and workflows for internal and audit use

Qualifications and experience needed

• Experience with Cisco ASA and Cisco Firepower Threat Defense (FTD) firewalls
• Managing and configuring security policies using Cisco Firepower Management Center (FMC)
• Experience administering and configuring Fortinet (FortiGate) security solutions
• Strong knowledge of VPN technologies (IPSec, SSL VPN), NAT, ACLs, routing, and IPS/IDS on Cisco and Fortinet platforms
• Deep understanding of network protocols and services: TCP/IP, UDP, DNS, DHCP, VLANs, STP, ARP, OSPF, BGP
• Excellent troubleshooting skills for network connectivity and security incident investigation
• Experience with traffic monitoring, packet capture (e.g., tcpdump, Wireshark), and log management tools
• Experience with cloud technologies, Azure, AWS
• Ability to maintain accurate technical documentation, including network diagrams and configuration records
• English proficiency is sufficient for technical documentation and communication with vendors/support
• Proficiency in Python for automation of security operations:
• - scripting policy deployments, configuration validation, auditing, and integrations
• - working with REST APIs, JSON/XML, and CLI tools

A plus would be

• Exposure to Palo Alto, Check Point, or other NGFW platforms
• Knowledge of Zero Trust architecture, NAC, and microsegmentation
• Experience with log aggregation and SIEM tools (e.g., ELK, Splunk)

What we offer

• Office or remote – it’s up to you. You can work from anywhere, and we will arrange your workplace
• Remote onboarding
• Performance bonuses for everyone (annual or quarterly — depends on the role)
• We train employees with the opportunity to learn through the company’s library, internal resources, and programs from partners 
• Health and life insurance
• Wellbeing program and corporate psychologist
• Reimbursement of expenses for Kyivstar mobile communication