Senior Security Engineer

1. Context:

The NMS II Infrastructure consists of:
Network Infrastructure
 The LAN in the buildings (approximately 90 buildings spread over Brussels, Luxembourg)
 The connections between these buildings an international Backbone (MPLS technology)
 The interconnection with other providers with dynamic routing and VPN.
 WIFI Hotspots
Security and Internet Infrastructure
 The security perimeter consists in a multi-layer infrastructure of firewalls and VPN of different vendors (Fortinet, Checkpoint, Pulsecure)
 The incoming and outgoing accesses with the external world pass through dedicated appliances working as proxies and reverse proxies (Bluecoat)
 DNS infrastructure and authentication servers are part of our domain of competences (BIND9)
A team of 45 people is working permanently on-site (Luxembourg and Brussel).
2. Your mission:
 Maintain complex and challenging infrastructures in the domain of Security
 Participate in the layer 2 support in the team
 Participate actively in Health checks for seeking issues before they impact production (Proactive analysis)
 Prepare and execute projects (Releases)
 Contribute to the delivery of projects (Transition)
 Propose and contribute to technical improvement plans
 Develop tools to automate alerting, incident, request management
 Ensure compliance (in operations and projects)
 Insure client satisfaction
 Interact and co-operate with vendors
 Contribute actively to Teams synergy
3. Job profile:
Competencies:
 Knowledge in one or several Security Technologies: Firewall, DNS, Proxy/reverse Proxy, Application Load balancing, Remote Access
 Knowledge of the OSI Model and the associated protocols
 Knowledge in automation and deployment (Ansible)
 Knowledge in one or several development languages (Python, Perl)
 Knowledge in one or several cloud providers (AWS, Azure)
 GNU/Linux
 Fluent in French and Technical English
Career:
 Education : BAC +5 in computer sciences or equivalent experience
 3-5 Years of experience in a large production environment
 Experience in Cloud environment is considered as an advantage
 Experience in delivering in a production environment is considered as an advantage
Skills:
 Autonomous and motivated
 Team spirit and strength of proposal regarding the technical choices
 Spirit of initiative
 Good interpersonal skills and strong adaptability
 Pragmatism and sense of organization
 Analytical mind
 Passion for challenge and innovation
4. Location and Timing issues:
 Provision of the above mentioned services basically in Luxembourg, with a possibility to work in Brussels about 1 day per month.
 Project Business hours: 7H-19H => being able to regularly start at 7AM and being able to regularly end at 7PM
 Occasional interventions outside of normal working hours may be requested
 On-call permanence during nights or weekends (about 1 week every 5 weeks).