Network Engineer

We are looking for an experienced Network Engineer to join our DefTech team, support continued company growth and increasing infrastructure complexity.

Responsibilities:

— Design, implement, maintain, and optimize wired and wireless network infrastructure across corporate and remote locations.

— Configure, manage, and troubleshoot network routing, switching, and security services.

— Administer and support core network services, including DNS, DHCP, SMTP, SSH, FTP, and related IP-based services.

— Configure and maintain TCP/IP, VPN (IPsec and SSL), NAT, VLANs, STP and network segmentation technologies.

— Deploy, manage, and support network equipment, including Fortinet, Ubiquiti, and MikroTik solutions.

— Configure, maintain, and optimize firewalls, IDS/IPS, and application control technologies.

— Manage network resources and connectivity within AWS and Azure cloud environments.

— Monitor network performance, availability, and security using tools such as Zabbix, Grafana, and other monitoring platforms.

— Perform network traffic analysis, capacity planning, and proactive performance tuning.

— Investigate, troubleshoot, and resolve network incidents, outages, and security-related events.

— Create and maintain network documentation, diagrams, standards, and operational procedures.

— Collaborate with Infrastructure, Security, and Cloud teams to support business initiatives and technology projects.

— Participate in infrastructure improvement, modernization, and security enhancement projects.

— Provide on-call support and participate in incident response activities when required.

Requirements:

— 3+ years of experience in Network Administration, Network Engineering, or a related role.

— Strong understanding of network architecture, routing, switching, and network security principles.

— Hands-on experience with enterprise networking equipment, including Fortinet, Ubiquiti, and MikroTik.

— Solid knowledge of TCP/IP networking and related protocols.

— Experience configuring and managing VPN (IPsec and SSL), NAT, VLANs, and network segmentation.

— Strong knowledge of network services, including DNS, DHCP, SMTP, SSH, FTP, and related technologies.

— Experience managing firewalls, IDS/IPS, and application control solutions.

— Experience with cloud networking in AWS and/or Microsoft Azure.

— Familiarity with network monitoring and observability tools such as Zabbix, Grafana or similar platforms.

— Experience troubleshooting complex network performance, connectivity, and security issues.

— Knowledge of Linux and Windows Server and MacOs environments.

— Understanding of configuration management and infrastructure automation concepts.

— Ability to create and maintain technical documentation, network diagrams, and operational procedures.

— Strong analytical, problem-solving, and communication skills.

Nice to have:

— Knowledge of Zero Trust Network Architecture (ZTNA) and modern network security frameworks.

— Experience with Endpoint Security solutions (EDR/EPP platforms).

— Familiarity with SIEM solutions and security monitoring tools.

— Understanding of compliance and security standards such as ISO 27001

We offer:

— Official employment in accordance with Ukrainian labor law.

— Military service deferment.

— Modern working equipment.

— Regular performance reviews to support your professional growth.

— 24 working days of paid vacation annually.

— Paid sick-leaves.

— English language classes.

— Compensation for educational and training programs.

— Team buildings and corporate events in a friendly and collaborative environment.

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