Network Security Engineer BTCC Location: To Be Confirmed Contract Type: Full-Time, Permanent Working Model: On-site / Hybrid (as applicable) Industry: Cryptocurrency / Blockchain / Fintech About BTCC Founded in 2011, BTCC is one of the world s longest-running cryptocurrency exchanges, delivering secure, transparent, and high-performance digital asset trading infrastructure. With over a decade of operational excellence in global crypto markets, BTCC continues to invest heavily in strengthening its infrastructure and security architecture to support a rapidly expanding global user base. As part of our ongoing commitment to enterprise-grade security and resilience, we are seeking a skilled Network Security Engineer to enhance our infrastructure and cloud security posture across both on-premise and cloud environments. What You ll Do Design, implement, and maintain robust network security solutions across on-premise and cloud environments. Manage, configure, and optimise firewall infrastructure, preferably FortiGate. Oversee and maintain VPN infrastructure and secure remote access solutions. Configure and manage FortiSASE to enable secure remote connectivity and cloud-delivered security services. Integrate and manage CDN and WAF platforms including Cloudflare, AWS CloudFront, and Akamai. Collaborate closely with IT Operations and DevOps teams to ensure secure network architecture and deployment practices. Monitor, investigate, and respond to network-related security