Open to opportunities

Dean Horn

@deanhorn

Message

I am an information security engineer specializing in Check Point firewalls and high-availability infrastructure.

South Africa

Message

What I'm looking for

I'm seeking a senior security role focusing on Check Point architecture, cloud security and automation in a collaborative, uptime-driven company that values continuous learning.

I am an experienced IT professional with nine years in the iGaming industry, focused on maintaining high-uptime infrastructure and securing large-scale environments. I deploy, manage and troubleshoot extensive Check Point firewall estates, create hundreds of IPSec site-to-site VPNs, and implement identity-based rules using OKTA to reduce blast radius for critical systems.

I prioritize automation, documentation and proactive monitoring—using Check Point Skyline, Zabbix and Grafana with PagerDuty to sustain 99.99% uptime—and I deliver infrastructure-as-code for repeatable deployments. I collaborate cross-functionally, conduct regular rulebase audits with Algosec, and continuously pursue certifications to strengthen security posture and operational resilience.

Experience

Work history, roles, and key accomplishments

Network Security Engineer

Derivco

Oct 2021 - Jun 2025 (3 years 8 months)

Deployed and maintained one of the company's largest Check Point firewall environments and managed hundreds of IPSec site-to-site VPNs, providing 24/7 on-call support and proactive monitoring to sustain 99.99% uptime.

IPSEC Okta Zabbix Grafana Algosec Infrastructure as Code

Software Configuration Engineer

Derivco

Jun 2016 - Oct 2021 (5 years 4 months)

Coordinated deployments, patch rollouts and configuration management across QA and production environments, improving release reliability and minimizing downtime during critical operations.