Do you want to join the exciting and innovating world of online banking?
Keytrade 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.
Over the past years, we have experienced strong growth, doubling our client base in 5 years and continuously expanding our teams.
Unlike 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.
We are looking for a senior network & security engineer to reinforce our Network & Security team.
This 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.
You will report directly to the Head of Network & Security and collaborate closely with our dedicated Risk & Security team.
Responsibilities
Main Responsibilities
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Oversight of routing & switching infrastructure (Cisco-based environment)
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Oversight of firewalling and perimeter security (Palo Alto, Fortigate, Juniper)
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Oversight of load balancing (F5 BigIP LTM)
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Microsoft Teams Telephony (VoIP , ... )
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L3 escalation support for internal IT teams
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Maintain, monitor, and stabilize hybrid cloud connectivity
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Coordinate with telecom providers, partners and external vendors
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Ensure documentation and operational best practices
Technical environment
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Hybrid multi-cloud: on-premises datacenters & AWS & Azure
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Network fabric
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Cisco switches & routers
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Palo Alto, FortiGate & Juniper firewalls
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F5 BigIP LTM
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Entreprise Wi-Fi infrastructure
Skills
What we are looking for
Must have
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5+ years of experience in network engineering
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Strong expertise in enterprise routing & switching
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Proven hands-on experience with:
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Cisco Catalyst switches and routers
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Palo Alto and/or Fortigate firewalls
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F5 bigIP LTM
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Experience working in hybrid cloud-connected environments
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Solid troubleshooting skills (L3 level)
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Professional English (written & spoken)
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Have a clean certificate of good behavior.
Nice to have
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Certifications such as CCNP/CCIE, Palo Alto next gen firewall engineer or Fortinet NSE
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Experience with Cisco Catalyst center
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Experience with scripting/automation languages
(Python, Ansible and/or Terraform) -
Experience in financial services environments
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Experience with Linux RedHat
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Experience with traditional Microsoft products
Soft skills
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Operationally strong and comfortable in complex environments
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Structured, documentation-oriented mindset
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Calm and pragmatic under pressure
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Capable of balancing hands-on work with technical coordination
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Natural mentor with strong communication skills
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Autonomous and delivery-focused
Offer
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Hybrid way of working: 50% office / 50% home working
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Agile way of working
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Green surroundings
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An inclusive workplace with nice colleagues
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A competitive salary package with advantages such as:
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Meal vouchers: €10 / working day
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Teleworking allowance
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Transport allowance
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Group insurance
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Hospitalisation insurance
