Keystone Solutions

Network security engineer

Senior Network Security Engineer at Keystone Solutions, Brussels. Design enterprise firewalls, segmentation & secure access for banking. 7+ yrs required. PTO, 401k, visa sponsorship, 4-day week.

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Job description

Date - JobBoardly X Webflow Template
Posted on:
 
December 12, 2025

Keystone Solutions is looking for a Senior Network Security Engineer to join their team as a consultant and deliver a high-impact mission for a leading banking institution in Brussels. The role involves designing, implementing, and operating enterprise-grade network security architectures, including next-generation firewalling, secure routing, segmentation, and secure remote access.

Requirements

  • 7+ years of hands-on experience in network security engineering within large-scale, mission-critical environments
  • Expertise with next-generation firewalls such as Palo Alto Networks, Check Point, or Fortinet
  • Strong proficiency with routing, switching, and SDN technologies
  • Practical experience with load balancers and application security
  • Proven skills in network segmentation, NAC, IDS/IPS, DDoS protection, DNS security, and secure web proxies

Benefits

  • Generous Paid Time Off
  • 401k Matching
  • Retirement Plan
  • Visa Sponsorship
  • Four Day Work Week
  • Generous Parental Leave
  • Tuition Reimbursement
  • Relocation Assistance

Requirements Summary

7+ years of experience in network security engineering, expertise with next-generation firewalls, and strong proficiency with routing, switching, and SDN technologies