IT Security Expert

Quintet Luxembourg, Luxembourg, LUX, L-2449

Purpose of the Job

Quintet Private Bank is a leading private bank in the wealth management sector; we are committed to our clients and their families, and pride ourselves on our personalised service based on a deep understanding of what clients want to achieve.
We are a bank headquartered in Luxembourg, with branches in Belgium, Denmark, Germany, Netherlands and a subsidiary in the UK. We are supervised by the CSSF with an ambition to stay true to our purpose to be the most trusted fiduciary of family wealth.

When you join Quintet you are joining a company that values diversity of background, equal access to opportunities, career development, collaboration and inclusiveness. We want our employees to feel proud of being part of a company that is committed to do the right thing. You will have the opportunity to grow your career while developing personally and professionally through various resources and programmes.

We are looking for a skilled IT Security Expert with strong hands-on network administration expertise to join our dynamic IT Security team.
The role combines IT Security Infrastructure management with deep operational knowledge of enterprise network infrastructures, ensuring that security controls are effectively implemented, and operated across on‑premises, hybrid, and cloud environments.

The successful candidate will work as part of the ITS Group Function – Network & Security Team in Quintet Luxembourg.

Key Accountabilities

Operate the Bank Security Infrastructure (Run the Bank) including firewall policies, VPNs, IPS/IDS, and mail gateways.
Penetration Testing Coordination: Coordinate and support penetration testing efforts, analysing findings, and working with teams to address identified security weaknesses.
Vulnerabilities Process Follow-Up: Monitor and track the status of identified vulnerabilities, ensuring that remediation efforts are executed efficiently and effectively. Manage the process and provide reporting associated
Patching Follow-Up: Manage and oversee the patch management process including EDR follow up, ensuring timely application of security updates and addressing vulnerabilities in a proactive manner.
Security Dashboard Creation: Develop and maintain security dashboards to provide real-time visibility into security metrics, vulnerabilities, and incident response efforts for stakeholders
Operate the day‑to‑day data leakage prevention (DLP) and data exfiltration monitoring activities, including detection, investigation, and remediation of potential data leaks across network, endpoint, cloud, and perimeter layers.
Technical Risk Analysis Support: Assist in conducting technical risk assessments and analyses to identify potential security threats and recommend appropriate mitigation strategies.
Access Validation: provide guidance for specific access request by following Access control policy principles
Maintain and secure the group network infrastructure, including Lan, Wan, SD-WAN, VPN, Bank Wireless network and cloud networking.
Ensure secure connectivity between on-premises environments and cloud platforms
Collaboration: Work closely with IT teams, including CISO, to integrate security into all aspects of the organization’s IT landscape.

Knowledge and Experience

5+ years of experience in IT Security, with strong hands-on experience in enterprise network administration.
Strong knowledge of security frameworks and best practices (e.g., NIST, ISO 27001).
Proven experience in network and security operations within complex environments.
Experience with penetration testing methodologies and tools.
Familiarity with security technologies, including firewalls, IDS/IPS, and SIEM solutions.
Excellent analytical and problem-solving skills.
Strong communication skills, with the ability to present technical information clearly to diverse audiences.
Relevant certifications (e.g., CISSP, CEH, CISM, CCNP Security, etc) are highly desirable.
Ability to collaborate effectively with cross-functional teams

Attributes and Qualities

Adaptability & Learning Agility
Time Management
Communication (Verbal & Written)
Client-Centric Mindset
Collaborative Teamwork

Technical Skills

Strong knowledge in Security Frameworks and Standards. Knowledge of security frameworks (ISO 27001, NIST, CIS Controls) and Compliance regulations (GDPR, DORA, etc)
Strong knowledge Firewall Next Generation (VPN, IPS, Anti-malware, Sandbox, URL Filtering, ...); Mail & Web gateways;
Knowledge in VPN and Remote access solutions
Knowledge in Endpoints Security (antivirus, antimalware)
Knowledge in Threat Intelligence and Vulnerability Management - Ability to analyse threat intelligence and conduct vulnerability assessments. Familiarity with security tools (SIEM, vulnerability scanners).

Languages Skills

Excellent written and oral French and English skills are essential, any other language is an advantage

< Back to search Apply Now