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CBTW

Senior Network & Security Engineer

CBTW
Luxembourg · Full-time · Mid-Senior
Overview

We are an independent global technology group delivering end-to-end technology solutions through a global delivery model.

We invest our efforts in unlocking the full potential of not only our clients, but also that of our employees by providing them with an evolving environment that encourages collaboration, creativity and a positive mindset.

Collaboration better the World – let’s do something great together !

Responsibilities

What is your role?

In this strategic hybrid role, you will be the guardian of the organization’s infrastructure robustness, connectivity, and protection. You will operate across the entire value chain, from the physical network layer to advanced threat detection:

  • Hybrid Operations (BAU): Administer and maintain critical infrastructure, including switching and routing (Cisco, Aruba) as well as next-generation security boundaries (Palo Alto, CheckPoint Firewalls).
  • Access & Identity Security: Manage the privileged access lifecycle via PAM (Wallix) solutions and supervise PKI and certificate management.
  • Performance & Connectivity: Optimize network flows, manage Load Balancing (F5) solutions, and ensure high availability for VPN tunnels and SD-WAN architectures.
  • Vulnerability Management & Monitoring: Drive scanning campaigns (Rapid7), prioritize technical remediations, and analyze alerts from the SIEM (ELK) or EDR platforms.
  • Incident Response & Troubleshooting: Act as a Level 2/3 expert to resolve complex connectivity issues and coordinate the response to security incidents (containment and post-mortem).
  • Governance & Projects: Contribute to the design of secure architectures (network segmentation, Zero Trust), apply ISO 27001 standards, and automate tasks through scripting (Python, Ansible).

Qualifications

What is your profile ?

  • Experience: 3 to 6 years of proven experience in a role combining network engineering and cybersecurity.
  • Network Expertise:
    • Deep understanding of routing protocols (BGP, OSPF) and switching.
    • Hands-on experience with market-leading equipment: Cisco Catalyst/Nexus, HP/Aruba, or Juniper.
    • Proficiency in Load Balancing (F5 Big-IP).
  • Cybersecurity Expertise:
    • Administration of Next-Gen Firewalls (Palo Alto, CheckPoint).
    • Knowledge of detection tools and identity management (PAM Wallix, AD, EntraID).
    • Practical experience in vulnerability scanning and log analysis (SIEM).
  • Frameworks & Standards: Strong familiarity with ISO 27001, NIST, or CIS frameworks.
  • Languages: Fluent French is mandatory; a solid level of technical English is required.
What are we offering?

Evolution:

  • Personal follow-up during your career at CBTW
  • Catalogue with a wide variety of trainings for hard- and soft skills, private language classes, unlimited access to an E-learning platform (Udemy, Code Academy) and possibility to get certified every year

Collaboration:

  • Opportunity to join a community and participate in knowledge sharing sessions, events, workshops, etc.
  • Join one of our collectives (Wellness, Agile, RSE ..) and share your interests with other positive thinkers

On top of that:

  • We offer a competitive salary with a flexible mobility package that allows you to choose options such as having mobility benefits (electric cars, electric bikes, public transportation subscription).
  • You will become part of a growing team of people keen on applying the latest technologies and knowledge

Do you see a match? We would love to see your application coming in! 😉

Key Skills

Ranked by relevance

palo alto high availability firewalls python aruba nist ospf siem elk vpn wan bgp cis
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Country Guide

Luxembourg

High-value international enterprise and fintech hub

Posted
Feb 16, 2026
Type
Full-time
Level
Mid-Senior
Location
Luxembourg
Company
CBTW

Industries

IT Services IT Consulting

Categories

Information Technology

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