IT Systems Administrator

VINCI Energies Norge

. Install, configure, operate, and further develop LAN and WLAN infrastructures at customer sites .

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

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

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

Highest-signal resume keywords

LAN/WLAN Infrastructure DevelopmentSwitching and Routing KnowledgeNetwork Incident AnalysisCisco/Extreme Networks ExperienceCCNA/CCNP Certifications

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

LAN InstallationWLAN ConfigurationSwitching (VLAN, STP, OSPF/BGP)Routing (IPv4/IPv6)Network Services (DHCP, DNS, RADIUS/802.1X)Network Incident ResolutionNetwork DocumentationProject Planning and ImplementationFirewall KnowledgeSite Connectivity

Soft Skills

CollaborationProblem-SolvingCommunication

Tools & Technologies

Cisco SwitchesCisco RoutersFortinet FirewallsExtreme Networks Equipment

Certifications & Qualifications

CCNACCNP

Industry Keywords

Enterprise NetworksNetwork TopologiesWi-Fi Site SurveysSecond-Level SupportCustomer Site Work

Tech Stack

Tools & technologies

DNSFirewallsSwitching

About the role

Key responsibilities & impact

Install, configure, operate, and further develop LAN and WLAN infrastructures at customer sites
Commission switches, routers, firewalls, and access points on-site and via remote access
Analyze and resolve complex network incidents in second-level support
Plan and implement migration, rollout, and modernization projects, such as core/campus network upgrades, Wi-Fi site surveys, and site connectivity
Document network topologies and configurations
Collaborate with Sales, Consulting, and Security colleagues

Requirements

What you’ll need

IT training (e.g., IT Specialist for System Integration), a degree, or comparable qualification; career changers are expressly 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, such as Cisco or Fortinet, is an advantage
Certifications such as CCNA/CCNP or comparable vendor certifications are an advantage
Class B driving license
Willingness to work at customer sites
Fluent spoken and written German
English language skills are an advantage

Benefits

Comp & perks

Participation in the company’s share program, including subsidies for free shares and support for occupational pension plans
Modern offices
Access to an external employee assistance platform for support in all areas of life
Preventive healthcare initiatives and sports programs, such as bike leasing
Numerous training and professional development opportunities through the VINCI Academy
Scope for initiative, short decision-making processes, flat hierarchies, and an area of responsibility with a high degree of autonomy
First-name culture and an open-door policy