Network Security Engineer

Work set-up: 
Full Remote
Contract: 
Full time
Work from: 
Anywhere

Offer summary

Qualifications:

Experience with Cisco ASA and Cisco Firepower Threat Defense (FTD) firewalls., Proficiency in managing and configuring Cisco Firepower Management Center (FMC)., Strong knowledge of VPN technologies, NAT, ACLs, routing, and IPS/IDS on Cisco and Fortinet platforms., Proficiency in Python scripting for automation and working with REST APIs, JSON/XML..

Key responsibilities:

  • Operate, administer, and improve 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 identify root causes.
  • Collaborate with IT, DevOps, and Security teams to implement secure network designs.

Київстар logo
Київстар Large http://kyivstar.ua
1001 - 5000 Employees
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Job description

Kyivstar Tech is looking for a Network Security Engineer.

About us

Kyivstar.Tech is a Ukrainian hybrid IT company and a resident of Diia.City. We are a subsidiary of Kyivstar, one of Ukraines largest telecom operators.
Our mission is to change lives in Ukraine and worldwide by creating technological solutions and products that unleash the potential of businesses and meet users needs.
Over 600+ KS.Tech specialists work daily in various areas, including mobile and web solutions and the design, development, support, and technical maintenance of highperformance systems and services.
We believe in innovations that truly bring quality changes and constantly challenge conventional approaches and solutions. Each of us is an adherent of entrepreneurial culture, which allows us never to stop, to evolve, and to create something new.

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 IPSIDS on Cisco and Fortinet platforms
  • Deep understanding of network protocols and services: TCPIP, 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 vendorssupport
  • Proficiency in Python for automation of security operations:
  • scripting policy deployments, configuration validation, auditing, and integrations
    working with REST APIs, JSONXML, 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

    • Required profile

    Experience

    Spoken language(s):
    English
    Check out the description to know which languages are mandatory.

    Hard Skills

    Cisco firePOWERNetwork SecurityPython (Programming Language)ARP4761Internet Protocols SuiteFortinetVirtual Private Networks (VPN)Domain Name SystemVxLAN (Virtual Extensible LAN)Cisco firePOWERPalo Alto WildfireSplunk

    Other Skills

    • Troubleshooting (Problem Solving)
    Are you interested?

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