Senior Network Administrator

**About Proximus Luxembourg**
Proximus Luxembourg is a leading historical player in the ICT & Telecoms markets. Proximus Luxembourg addresses both residential and business markets through its commercial brands Tango, Telindus and more recently Codit.

With PSF support status, the company has almost 750 employees. All these experts share a passion for digital technology, a spirit of openness and innovation, and a desire to simplify, connect and make their customers' personal and professional activities ever more secure.

Proximus Luxembourg is actively contributing to the acceleration of Luxembourg's digitalisation and its economic influence through the development of connectivity, resilient infrastructures and 5G, as well as innovative technologies such as Blockchain, Artificial Intelligence, Machine Learning and IoT.

Proximus Luxembourg is a subsidiary of the Proximus group (Euronext Brussels: PROX), provider of digital services and communication solutions operating in the Belgian and international markets.

**Telindus Luxembourg - Share more than technologies**

Telindus is a brand of Proximus Luxembourg.

Founded in 1979, Telindus Luxembourg accompanies all organizations in their digital transformation, by providing holistic ICT & Telecommunication solutions, as well as tailored support services. Its areas of expertise include Telecommunication Services, ICT Infrastructure, Multi-Cloud, Digital Finance Solutions, Cybersecurity, Business Applications, Managed Services and Training.

**Job Content**:
This position is responsible for optimal and secure operation of the Datacenter network and security infrastructure. The Senior Network Administrator must be able to identify needs, design upgrades and implementation of new technology as needed to support the various responsibilities of this position.

Datacenter infrastructure is a mixed Cisco ACI and Cisco Nexus environment. Security technologies are mainly PaloAlto/Checkpoint/Fortinet/Cisco FirePower firewalls, F5 load balancers and WAF, Infoblox and Efficient IP DNS. Upgrades to network and security infrastructure typically require work outside business hours to avoid user disruption.

Position functions as Level II / Level III support and will be responsible for handling and resolve end-user tickets if level I is not able to treat them. Position is also part of the On-call role 24/7 once every ~5 weeks to intervene on service interruption based on major incidents.
The Senior Network Administrator works closely with vendor and manufacturer staff to coordinate operation and repair, and to determine and correct problems that may occur during set-up and operation. Consults with vendors and manufacturers regarding product compatibility, investigates user complaints of malfunctioning equipment; isolates the fault and makes repairs where appropriate.

The Senior Network Administrator works also within project teams as technology reference and will take the responsibility of the installation and configuration of the equipment.
Essential responsibilities:

- Installation, configuration, monitoring and incident/problem resolution of Network switching equipment and routing equipment;
- Monitoring and incident/problem resolution of security equipment;
- Installation, configuration of part of the security equipment;
- Monitor performance and capacity of the infrastructure
- Works closely with users to understand needs, define and solve incidents/problems;
- Instructs users in order to avoid recurring incidents/problems
- Maintains a current knowledge of changes in the data communications field;
- Suggests improvements to Datacenter infrastructure

**Profile**:
Required Knowledge, Skills and Abilities Working knowledge of:

- A Master's degree in IT or IT Security, or equivalent professional competencies supported by relevant certifications and extensive experience.
- Ongoing identification of needs, design upgrades and implementation of new technology
- Hardware, software and networking protocols utilized in LAN, WAN and related data communication systems, including fiber optics and peripheral equipment
- LAN switch and router management
- Router protocols and setup
- TCP/IP communication
- VLAN technology
- Configure and troubleshoot networking technologies, including MPLS, BGP, OSPF, and EIGRP
- Cisco IOS software (ACI is a plus)
- Firewalls and VPN servers
- Syslogs and syslog servers
- The use and care of tools and equipment related to the installation, troubleshooting, maintenance and upgrading of a variety of data/security networks and communication hardware and software
- Record keeping practices and procedures

Ability to:

- Prioritize competing requests for service, multiple tasks, and organize schedules to meet SLA and deadline requirements;
- Explain technical information to non-technical users;
- Prepare clear, concise reports, documentation and correspondence;
- Communicate professionally and effectively, both orally and in writing;
- Work professional