IT Network System Engineer, LAN/WLAN

DATAGROUP

. Operate and configure LAN and WLAN environments at customer locations .

Posted 10/11/2026full-timeRemote • LithuaniaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in operating and configuring LAN and WLAN environments, ensuring high availability and reliability of network operations. Proficient in troubleshooting network issues and providing second-level support while utilizing various network management tools.

Highest-signal resume keywords

LAN/WLAN ConfigurationTCP/IP and OSI Layer 1-7Cisco Catalyst SeriesNetwork TroubleshootingCisco Certifications (CCNA, CCNP)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network SupportError AnalysisRoot Cause AnalysisWLAN Infrastructure MeasurementAnsiblePythonAPIsZabbixNetboxOpenNMS

Soft Skills

Independent WorkReport CreationDocumentation

Tools & Technologies

Cisco MerakiCisco Catalyst/DNA CenterRuckus LAN/WLAN Components

Certifications & Qualifications

CCNACCNP

Industry Keywords

Network ManagementBusiness Fluent EnglishGerman Language Skills

Tech Stack

Tools & technologies

AnsiblePythonTCP/IP

About the role

Key responsibilities & impact

Operate and configure LAN and WLAN environments at customer locations
Work independently on customer LAN/WLAN projects
Ensure continuous and highly available network operation
Troubleshoot and eliminate faults in network environments
Perform error analysis and root cause analysis in network contexts
Provide 2nd level support for network-related questions
Create reports and document network environments

Requirements

What you’ll need

Completed apprenticeship as an IT specialist or a bachelor's degree in computer science
Several years of professional experience in the professional support of networks
Experience with TCP/IP and OSI Layer 1-7
Good knowledge of Cisco Catalyst Series, including 9000er Switch Series and Catalyst WLAN Controller
Experience in measuring and simulating WLAN infrastructures is desirable
Additional knowledge of Cisco Meraki, Cisco Catalyst/DNA Center and Ruckus LAN/WLAN components would be beneficial
Knowledge of Ansible, Python and APIs on network components
Basic knowledge of network management tools such as Zabbix, Netbox and openNMS
Relevant Cisco certifications such as CCNA or CCNP are desirable
Business fluent English, written and spoken
German language skills are desirable

Benefits

Comp & perks

Individual training opportunities
Diverse development opportunities
Personal mentor
Flat hierarchies
Strong feedback culture
Regular performance reviews
Flexible working hours
Option to work remotely
Height-adjustable desks
At least 2 monitors per workstation
Space to meet and retreat in state-of-the-art offices
Company-sponsored participation in sporting events
Necessary sporting equipment through the company's own DATAGROUP store
Special leave days
Company health insurance