# Network & Security Engineer

About the Role We are looking for an experienced Network & Security Engineer to support the administration, maintenance and evolution of network and datacenter infrastructures. The consultant will contribute to day-to-day operations, complex troubleshooting, infrastructure modernization and network security projects, ensuring the performance, availability and security of critical IT environments. Key Responsibilities Administer, maintain and develop network and security infrastructures. Diagnose and resolve complex network incidents. Participate in network architecture, migration and deployment projects. Monitor and optimize network performance. Manage routing and switching across Layer 2 and Layer 3 environments. Maintain technical documentation, operating procedures and network diagrams. Perform datacenter operations, including equipment installation, replacement, racking and commissioning. Manage copper and fibre-optic cabling. Collaborate with infrastructure, security and project teams. Required Technical Skills Networking & Routing Strong knowledge of TCP/IP, OSI model, subnetting, VLANs, trunking, NAT, DHCP and DNS. Hands-on experience with Layer 2 switching a

- **Id**: 4299473
- **Url**: <https://alion.io/job/catamania-network-security-engineer>
- **Role**: Security
- **Role family**: Security
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: explicit
- **Locations**: Luxembourg City, Luxembourg
- **Countries**: LU
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-14T02:47:09Z
- **Last verified at**: 2026-11-14T02:47:09Z
- **Board verified**: no
- **Days open**: 0
- **Description format**: text
- **Description chars**: 2621
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: IT Consulting & Digital Transformation, Custom Software Development

## Company

- **Id**: 183709
- **Name**: Catamania
- **Domain**: catamania.com
- **Url**: <https://alion.io/company/catamania>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: services
- **Is intermediary**: no

## Technologies

- **BGP** — Optional: no
- **DHCP** — Optional: no
- **DNS** — Optional: no
- **OSPF** — Optional: no
- **TCP/IP** — Optional: no
- **Zabbix** — Optional: no
- **Zero Trust** — Optional: no
- **GCP** — Optional: yes
- **PKI** — Optional: yes

## Trust

- **Level**: not_scored
- **Days open**: 0

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **Luxembourg** — Iso: LU; Kind: country

## Lifecycle

- Event: open; At: 2026-11-14T02:47:09Z

## Liveness

- **Score**: 90
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.903
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 14
- **Reasons**: seen:0, velocity, win:early, comp:brand,attention
- **Computed at**: 2026-11-14T05:58:10Z

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.