IT Systems Administrator

Axians

. Install, configure, operate, and further develop customers’ LAN and WLAN infrastructures .

Posted 11/9/2026full-timeBerlin • GermanyMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in operating and configuring LAN and WLAN infrastructures, with strong knowledge of switching and routing protocols. Proficient in analyzing complex network issues and implementing modernization projects while collaborating effectively with cross-functional teams.

Highest-signal resume keywords

LAN/WLAN Infrastructure DevelopmentSwitching And Routing KnowledgeNetwork Services ExpertiseCisco/Extreme Networks ExperienceCCNA/CCNP Certifications

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

VLANSTPOSPFBGPIPv4IPv6DHCPDNSRADIUS/802.1XNetwork Troubleshooting

Soft Skills

CollaborationProblem-SolvingCustomer Support

Tools & Technologies

Cisco FirewallsFortinet FirewallsNetwork Monitoring Tools

Certifications & Qualifications

CCNACCNP

Industry Keywords

Enterprise NetworksNetwork TopologiesIT SpecialistMigration ProjectsWi-Fi Surveys

Tech Stack

Tools & technologies

DNSFirewallsSwitching

About the role

Key responsibilities & impact

Install, configure, operate, and further develop customers’ LAN and WLAN infrastructures
Commission switches, routers, firewalls, and access points on-site and via remote access
Analyze and resolve complex network issues as part of second-level support
Plan and implement migration, rollout, and modernization projects, such as core/campus network upgrades, Wi-Fi surveys, and site connectivity
Document network topologies and configurations
Work closely with Sales, Consulting, and Security colleagues
Support customers in future-proofing their IT environments

Requirements

What you’ll need

IT training (e.g., IT Specialist for Systems Integration), a degree, or equivalent qualification; career changers are explicitly welcome
Several years of experience operating enterprise networks
Strong knowledge of switching and routing (VLAN, STP, OSPF/BGP, IPv4/IPv6)
Knowledge of network services such as DHCP, DNS, and RADIUS/802.1X
Experience with vendors such as Cisco or Extreme Networks
Knowledge of firewalls (e.g., Cisco, Fortinet) is an advantage
Certifications such as CCNA/CCNP or comparable vendor certifications are a plus
Class B driver's license
Willingness to travel to customer sites
Fluent spoken and written German
English language skills are an advantage

Benefits

Comp & perks

Participation in the company’s employee share program, including subsidies for free shares and support for occupational pension provision
Modern offices
Access to an external employee assistance platform for all areas of life
Support and advice for relatives requiring care
Childcare services
Support with personal or professional matters
Preventive healthcare initiatives
Sports programs, such as bike leasing
Numerous training and professional development opportunities at VINCI Academy
Scope for initiative, short decision-making processes, flat hierarchies, and an area of responsibility with a high degree of autonomy
Informal, first-name culture and an open-door policy