Senior Network Engineer

Senior Network Engineer - Toronto Canada Department: Blue Mantis Employment Type: Full Time Location: Remote Description At Blue Mantis, we specialize in designing, implementing, and managing secure, high-performance digital operating environments for leading companies nationwide. With deep expertise in security and cloud technologies, we deliver end-to-end infrastructure solutions that empower businesses to achieve their objectives and excel in the digitally driven economy. We are seeking a highly skilled and experienced Senior Network Engineer to join our dynamic team in supporting our customers. The ideal candidate will be part of a team responsible for supporting a large, complex customer environment. This role requires expertise in managing, troubleshooting, and optimizing a range of network technologies, including Cisco and Nexus switches, Meraki, Palo Alto, and Check Point firewalls, physical and virtual F5 load balancers, and Cisco SANs. The Senior Network Engineer will play a critical role in ensuring network reliability, security, and performance while contributing to documentation and process improvement initiatives. If you thrive under pressure and excel at managing complex technical challenges, this is your opportunity to make an impact. Key Responsibilities Incident Response and Troubleshooting: Quickly assess and resolve network-related incidents, ensuring minimal disruption to operations. Conduct root cause analysis (RCA) and implement preventive measures to avoid recurrence. Proactive Network Maintenance: Perform firmware updates, patches, and upgrades across all network devices. Monitor network health and performance, identifying and addressing potential issues proactively. Documentation and Process Improvement: Create and maintain detailed documentation, including Standard Operating Procedures (SOPs) and technical diagrams. Develop runbooks to streamline troubleshooting and resolution processes. Communication and Collaboration: Provide timely updates and clear communication to stakeholders during incidents and maintenance activities. Collaborate with cross-functional teams to ensure seamless integration of network services. On-Call Support: Participate in an on-call rotation to provide 24/7 network support when needed. Skills, Knowledge & Expertise Technical Skills: Switching and Routing: Expertise in Cisco and Nexus switches, with a solid understanding of VLANs, trunking, spanning tree, and Layer 3 routing protocols (BGP, OSPF, EIGRP). Firewalls: Hands‑on experience with Palo Alto and Check Point firewalls, including policy configuration, troubleshooting, high availability and optimization. Wireless and Cloud Networking: Experience with Meraki networks and cloud‑based management. Load Balancing: Proficiency with physical and virtual F5 load balancers, including configuration and troubleshooting. Monitoring and Automation: Familiarity with network monitoring tools (SolarWinds) and automation techniques using scripting (Python, Ansible, or similar). Soft Skills: Exceptional analytical and problem‑solving abilities. Strong verbal and written communication skills to provide clear updates and create comprehensive documentation. Ability to work independently and as part of a team in a fast‑paced, high‑pressure environment. Experience: Minimum 7–10 years of experience in network engineering roles, with a focus on enterprise‑scale environments. Proven track record in incident management, RCA, and delivering network solutions under tight deadlines. Experience with firmware updates, patch management, and hardware lifecycle management. Certifications (Preferred): Cisco Certified Network Professional (CCNP) or higher. Palo Alto Networks Certified Network Security Engineer (PCNSE). Check Point Certified Security Expert (CCSE). F5 Certified Administrator or similar. Agencies/3 Parties may not solicit to any employee of Blue Mantis. Any candidate information received from any Agency/3 Party will be considered a gift and property of Blue Mantis, unless the Agency/3 Party is an Authorized Vendor of Blue Mantis with an up‑to‑date Blue Mantis Contract in hand signed by Blue Mantis Talent Acquisition. No payment will be made to any Agency/3 Party who is not an Authorized Vendor, nor has specific approval in writing from Blue Mantis Talent Acquisition to engage in recruitment efforts for Blue Mantis. At this time we have no interest in onboarding any new staffing partners. #J-18808-Ljbffr