CYBER SECURITY L3 Firewall Engineer
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Want to Make Waves in Tech? GBT Solutions Is the Place to Be 🐝
About Us: GBT Solutions is a Portuguese technology company founded in 2018, part of the HFA Group established in 1995. With a focus on delivering cutting-edge solutions across various industries, we are committed to fostering a diverse and inclusive work environment and are proud to be recognized for our commitment to excellence and innovation.
Position: CYBER SECURITY L3 Firewall Engineer
Location: Mons, Belgium
Key Responsibilities
- Build, implement, maintain, and support Next Generation Firewalls in complex environments.
- Configure, maintain, and review security policies and advanced firewall capabilities.
- Perform centralized administration and configuration to ensure optimal functionality and uptime.
- Implement, validate, and optimize firewall rulesets and policies.
- Troubleshoot complex network security issues and collaborate with cross‑functional teams for resolution.
- Work closely with Infrastructure Management and Cyber Security teams to enhance security posture.
- Support Incident Handlers in identifying and remediating security incidents.
- Review security documentation and provide technical guidance when required.
- Execute additional duties aligned with cyber security operations.
Required Qualifications
- Minimum 3 years of practical experience in cyber security or a related field.
- At least 3 years of hands‑on experience with:
- Palo Alto Networks Firewalls
- Palo Alto Panorama (enterprise deployments)
- Firewall installation and management across multiple vendors
- Strong scripting skills: Bash, Python, Ansible.
- Solid understanding of network protocols and traffic analysis.
- Proven ability to troubleshoot complex network security issues.
- Experience with LAN/WAN networking, protocol architecture, and OS/application vulnerabilities.
- Strong knowledge of TCP/IP protocols and services.
- Experience with \nix-based operating systems*.
- Relevant cybersecurity certifications (e.g., CISM, CISSP, GIAC).
Equal Opportunity: GBT Solutions is an equal opportunity employer and values diversity.
We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any other factor other than merit.
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