IT Security Engineer

ph3Do you want to join the exciting and innovating world of online banking? /h3 pKeytrade Bank is part of the Crédit Mutuel Arkéa Group, a well-established and reliable French banking group headquartered in Brest. As a pioneer in online banking in Belgium, Keytrade has grown into a fully digital bank offering a wide range of daily banking, investment and trading services. /p pOver the past years, we have experienced strong growth, doubling our client base in 5 years and continuously expanding our teams. /p pUnlike traditional banks, we operate with a dynamic, agile and scale-up mindset. We are a Brussels-based financial institution (± 400 employees) operating in a highly available, hybrid multi-cloud environment. /p pWe are looking for a senior network security engineer to reinforce our Network Security team. /p pThis role is both hands‑on and technical lead oriented (50/50). You will stabilize, maintain, and oversee a complex hybrid infrastructure while mentoring junior team members and acting as the go‑to escalation point. /p pYou will report directly to the Head of Network Security and collaborate closely with our dedicated Risk Security team. /p h3Responsibilities /h3 h3Main Responsibilities /h3 ul liOversight of routing switching infrastructure (Cisco-based environment) /li liOversight of firewalling and perimeter security (Palo Alto, Fortigate, Juniper) /li liOversight of load balancing (F5 BigIP LTM) /li liL3 escalation support for internal IT teams /li liMaintain, monitor, and stabilize hybrid cloud connectivity /li liCoordinate with telecom providers, partners and external vendors /li liEnsure documentation and operational best practices /li /ul h3Technical environment /h3 ul liNetwork fabric /li liCisco switches routers /li liF5 BigIP LTM /li /ul h3Skills /h3 h3What we are looking for /h3 h3Must have /h3 ul li5+ years of experience in network engineering /li liStrong expertise in enterprise routing switching /li liProven hands‑on experience with: ul liCisco Catalyst switches and routers /li liPalo Alto and/or Fortigate firewalls /li liF5 bigIP LTM /li /ul /li liExperience working in hybrid cloud-connected environments /li liSolid troubleshooting skills (L3 level) /li liProfessional English (written spoken) /li liHave a clean certificate of good behavior. /li /ul h3Nice to have /h3 ul liCertifications such as CCNP/CCIE, Palo Alto next gen firewall engineer or Fortinet NSE /li liExperience with Cisco Catalyst center /li liExperience with scripting/automation languagesbr/(Python, Ansible and/or Terraform) /li liExperience in financial services environments /li liExperience with Linux RedHat /li liExperience with traditional Microsoft products /li liOperationally strong and comfortable in complex environments /li liStructured, documentation-oriented mindset /liliCalm and pragmatic under pressure /li liCapable of balancing hands‑on work with technical coordination /li liNatural mentor with strong communication skills /li liAutonomous and delivery-focused /li /ul h3Offer /h3 ul liHybrid way of working: 50% office / 50% home working /li liAgile way of working /li liGreen surroundings /li liAn inclusive workplace with nice colleagues /li liA competitive salary package with advantages such as: ul liMeal vouchers: €10 / working day /li liTeleworking allowance /li liTransport allowance /li liGroup insurance /li liHospitalisation insurance /li /ul /li /ul /p