Description:

Kyivstar Tech is seeking a Network Security Engineer to operate, administer, and evolve the company’s network security infrastructure.
The role involves automating routine firewall operations and policy management using Python and APIs.
Responsibilities include investigating network and security incidents, performing traffic analysis, and identifying root causes.
The engineer will collaborate with IT, DevOps, and Security teams to implement secure network designs.
Documentation of configurations, topologies, and workflows for internal and audit use is also required.

Requirements:

Candidates must have experience with Cisco ASA and Cisco Firepower Threat Defense (FTD) firewalls.
Managing and configuring security policies using Cisco Firepower Management Center (FMC) is essential.
Experience administering and configuring Fortinet (FortiGate) security solutions is required.
A strong knowledge of VPN technologies (IPSec, SSL VPN), NAT, ACLs, routing, and IPS/IDS on Cisco and Fortinet platforms is necessary.
Applicants should possess a deep understanding of network protocols and services, including TCP/IP, UDP, DNS, DHCP, VLANs, STP, ARP, OSPF, and BGP.
Excellent troubleshooting skills for network connectivity and security incident investigation are needed.
Experience with traffic monitoring, packet capture tools (e.g., tcpdump, Wireshark), and log management tools is required.
Familiarity with cloud technologies such as Azure and AWS is necessary.
Candidates must be able to maintain accurate technical documentation, including network diagrams and configuration records.
Proficiency in English is required for technical documentation and communication with vendors/support.
Proficiency in Python for automation of security operations, including scripting policy deployments, configuration validation, auditing, and integrations, is essential.
Experience working with REST APIs, JSON/XML, and CLI tools is required.

Employees can choose to work from the office or remotely, with arrangements made for their workplace.
The company offers remote onboarding for new hires.
Performance bonuses are available for all employees, either annually or quarterly, depending on the role.
Training opportunities are provided through the company’s library, internal resources, and programs from partners.
Health and life insurance are included as part of the benefits package.
A wellbeing program and access to a corporate psychologist are offered to employees.
Reimbursement of expenses for Kyivstar mobile communication is provided.