This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Cisco Firewall Engineer L3 based in Canada. This role offers the opportunity to act as a senior technical expert supporting enterprise network security infrastructure.You will be responsible for advanced firewall troubleshooting, security architecture improvements, and complex infrastructure initiatives.The position combines hands-on engineering, strategic problem-solving, and collaboration with security and networking teams.You will help strengthen security posture through firewall optimization, segmentation strategies, automation, and continuous improvements.Working in a remote environment, you will support critical enterprise systems while contributing technical expertise and mentorship.This is an ideal opportunity for an experienced network security professional who enjoys solving complex challenges.You will play a key role in improving reliability, performance, and security across large-scale environments.