NTT Limited

[Staffing/Freelance] Network Security Engineer

Diegem, Belgium Full time

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

We are seeking an experienced Network & Security Engineer to strengthen the team of our client. You will design, secure, and optimize network environments using Fortinet solutions and Cisco technologies at CCNP level.

Your Mission

  • Design, implement, and maintain secure network infrastructures
  • Configure and manage Fortinet appliances (FortiGate, FortiWeb, FortiEDR)
  • Administer and troubleshoot Cisco network equipment (routing, switching, VPN)
  • Monitor network performance and proactively resolve issues
  • Ensure compliance with security standards and best practices
  • Act as escalation point for complex incidents and collaborate on projects

Technical Environment

  • Network: Cisco LAN/WAN, VPN, routing & switching
  • Security: Fortinet suite (FortiGate, FortiWeb, FortiEDR)
  • Protocols: TCP/IP, VLAN, BGP, OSPF
  • Tools: Firewall management, IDS/IPS, VPN solutions

Required Qualifications

  • Education: Bachelor’s or Master’s in IT, Networking, or related field
  • Certifications: Cisco CCNP (Routing & Switching or Enterprise) & Fortinet NSE4 (or higher)
  • Experience:Minimum 5 years in network and security engineering
  • Proven hands-on experience with Cisco and Fortinet technologies
  • Skills: Strong troubleshooting and problem-solving abilities
  • Knowledge of network security principles and best practices
  • Languages: Fluent in French or Dutch & English

Workplace type:

Hybrid Working

About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services.  Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.

Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.

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