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Proximus Group

Cyber Security Consultant

Proximus Group
Belgium · Full-time · Mid-Senior

Freelancer Opportunity!!!


We are looking for a Medior/Senior Security Engineer (freelancer or employee) for a long-term mission within ADA team who will be handling Proximus Media House account.


Language: EN is a must (NL or FR are an asset).

Team: 7 members.

Office presence: 3 days/week, Thursday Evere, another day Evere, Tuesday BE Central, 2 days from home.


Profile: Medior - Senior.


The new consultant will need to have a technical networking background, and a technical side of security (we do not need a security/governance officer), translating architecture into design.

Preferable knowledge on firewalls, VPN, hardcore technical side, hands-on experience and solid knowledge in network.


Description:


Are you passionate about #AI or #cybersecurity? You love working with high profile teams with a sure taste for challenge and variety? You dream to join a fast-growing company with start-up mentality? Eager to learn continuously? Join Proximus Ada!


Within this Proximus’ newly created center of excellence for AI and Cybersecurity, the mission of the Security Management and CSIRT teams is to protect Proximus, its customers, its business, its operations and reputation against external and internal threats. You will be fascinated by a highly dynamic environment, the strong collaboration and some deep technical aspects.


Within the Security Management team, we are looking for a Medior/Senior Security Engineer to support one of our Affiliates Proximus Media House (PMH).


As a Medior/Senior Security Engineer, you are responsible for the implementation, monitoring, and continuous improvement of the organization's cybersecurity posture. You focus on both proactive and reactive security measures to protect PMH’s digital and media infrastructure to meet the demands of PMH’s ambitions: Live, broadcasting, playout, content management, media operations, and more.


You will work across traditional IT systems and specialized media and broadcast networks. Collaboration with innovation teams, project management, technology teams, and external vendors is a daily aspect of the role.


You proactively propose, develop, and maintain future-proof security solutions that align with PMH’s strategic goals while ensuring operational effectiveness and business continuity.


Your Role:


Design and implement secure network, system, and application architectures aligned with industry best practices.

Perform continuous threat monitoring, vulnerability management, and patch management.

Define and enforce firewall, network, endpoint, and cloud security policies.

Conduct and support forensic analysis, threat hunting, and root cause analysis for security incidents.

Lead security incident response and coordinate with internal teams and external partners.

Evaluate and test security tools and recommend enhancements.

Collaborate with project and infrastructure teams to embed security requirements in design and deployment phases.

Maintain compliance with relevant security standards (e.g., ISO27001, NIS2, GDPR).

Support internal and external audits, including documentation and remediation tracking.

Develop and deliver internal security training and awareness initiatives.

Participate in change and incident management processes to ensure secure implementations.

You are occasionally available to handle critical security tasks or incidents outside of standard business hours (estimated 2–3 times per year).


Your Profile:


3–10 years of experience in cybersecurity roles (Medior: 3+, Senior: 7+)

Certified in one or more: CISSP, CISM, OSCP, CEH, CCSP, or equivalent is a plus

Certified in one or more : CCNA, CCNP, Arista ACE, Checkpoint CCSA/CCSE, Fortinet NSE 4-7 or equivalent is a plus

Solid understanding of firewalls, IDS/IPS, SIEM, DLP, endpoint protection, and encryption technologies

Experience securing hybrid infrastructures (on-prem, cloud, media-specific systems)

Knowledge of broadcast media environments and video-over-IP is a strong asset

Demonstrated skills in incident detection, analysis, and response

Experience with Cisco, Checkpoint and Fortinet Firewall, Arista security-enabled networking products is a strong plus

Familiarity with automation/scripting for security (Python, Bash, PowerShell)

Team player with the ability to work independently

Strong problem-solving and communication skills

Fluent in English, with conversational ability in French or Dutch preferred

Based in Belgium, hybrid working 3 days/week at the office.

Long-term mission.


Interested candidate apply on:


https://proximus.talent-pool.com/projects/cyber-security-consultant-medior/53931?utm_medium=referral&utm_content=1243

Key Skills

Ranked by relevance

cybersecurity firewalls firewall fortinet cloud ai incident response cloud security python cissp bash ccna oscp cism ccnp ccsp siem vpn ceh
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Posted
Jul 28, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels

Industries

Telecommunications

Categories

Information Technology

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