PWe 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. /ppLanguage: EN is a must (NL or FR are an asset). /ppTeam: 7 members. /ppOffice presence: 3 days/week, Thursday Evere, another day Evere, Tuesday BE Central, 2 days from home. /ppProfile: Medior - Senior. /ppThe 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. /ppPreferable knowledge on firewalls, VPN, hardcore technical side, hands-on experience and solid knowledge in network. /ppDescription: /ppAre 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! /ppWithin this Proximus? newly created centre 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. /ppWithin the Security Management team, we are looking for a Medior/Senior Security Engineer to support one of our Affiliates Proximus Media House (PMH). /ppAs 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 digital and media infrastructure to meet the demands of PMH ambitions: Live, broadcasting, playout, content management, media operations, and more. /ppYou 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. /ppYou proactively propose, develop, and maintain future-proof security solutions that align with PMH?s strategic goals while ensuring operational effectiveness and business continuity. /ppYour Role: /ppDesign and implement secure network, system, and application architectures aligned with industry best practices. /ppPerform continuous threat monitoring, vulnerability management, and patch management. /ppDefine and enforce firewall, network, endpoint, and cloud security policies. /ppConduct and support forensic analysis, threat hunting, and root cause analysis for security incidents. /ppLead security incident response and coordinate with internal teams and external partners. /ppEvaluate and test security tools and recommend enhancements. /ppCollaborate with project and infrastructure teams to embed security requirements in design and deployment phases. /ppMaintain compliance with relevant security standards (e.g., ISO27001, NIS2, GDPR). /ppSupport internal and external audits, including documentation and remediation tracking. /ppDevelop and deliver internal security training and awareness initiatives. /ppParticipate in change and incident management processes to ensure secure implementations. /ppYou are occasionally available to handle critical security tasks or incidents outside of standard business hours (estimated 2 to 3 times per year). /ppYour Profile: /pp3-10 years of experience in cybersecurity roles (Medior: 3+, Senior: 7+) /ppCertified in one or more: CISSP, CISM, OSCP, CEH, CCSP, or equivalent is a plus /ppCertified in one or more: CCNA, CCNP, Arista ACE, Checkpoint CCSA/CCSE, Fortinet NSE 4-7 or equivalent is a plus /ppSolid understanding of firewalls, IDS/IPS, SIEM, DLP, endpoint protection, and encryption technologies /ppExperience securing hybrid infrastructures (on-prem, cloud, media-specific systems) /ppKnowledge of broadcast media environments and video-over-IP is a strong asset /ppDemonstrated skills in incident detection, analysis, and response /ppExperience with Cisco, Checkpoint and Fortinet Firewall, Arista security-enabled networking products is a strong plus /ppFamiliarity with automation/scripting for security (Python, Bash, PowerShell) /ppTeam player with the ability to work independently /ppStrong problem-solving and communication skills /ppFluent in English, with conversational ability in French or Dutch preferred /ppBased in Belgium, hybrid working 3 days/week at the office. /ppLong-term mission. /p