MSx Security Engineer III

TPX Communications is hiring an MSx Security Engineer III for an onsite role in the United States. In this leadership-level position, you’ll help steer complex networking and security outcomes within TPx’s Managed Services environment, serving as a go-to escalation point while supporting customer deployments and continuous improvement across offerings.

What you’ll do

• Stay current on emerging trends, threats, and technologies relevant to TPx offerings, applying that knowledge to customer solutions.
• Act as an escalation point for lower tiers, supporting questions and partnering to drive issue resolution.
• Provide consulting support for client environments, including technology planning and security-focused best practices through technical discussions.
• Plan, design, and deploy cloud-based FortiGate platforms and other UTM offerings.
• Use network diagrams to support solution planning; create diagrams as needed using Visio.
• Own assigned tickets to drive resolution and maintain customer satisfaction.
• Collaborate with customers and internal teams (sales and marketing) to understand customer needs.
• Handle escalations coming from the Managed Services Support Team and within the Security Engineering Team.
• Work closely with Project Managers and Implementation Specialists to meet installation timelines for customers.
• Support the Managed Services Support Team as directed by MSx management.
• Participate in after-hours installations and escalations as needed.

Responsibilities across solution delivery

This role supports customers with complex, end-to-end networking and security solutions, including designing, building, and deploying premise-based firewalls, routers, switches, access points, and SD-WAN appliances. You will also partner with product engineering to vet new solutions and document current ones to improve workflow, and coordinate with other senior engineers to develop cross-platform solutions and evaluate products aligned to customer needs.

Required experience and skills

• Minimum 7-10 years of IT/Network/Telco/Security work experience
• Experience in a leadership or trainer capacity
• Proven design/build experience across SMB and enterprise network environments
• Customer service experience and a positive attitude
• Strong technical, troubleshooting, and problem-solving skills
• Strong knowledge of LAN and WAN with security best practices, including IP routing protocols and topologies, switching technologies, VLANs, packet-level performance analysis, and application troubleshooting
• Hands-on tools and protocols including Wireshark, DHCP, DNS, VPN, and Microsoft Visio/Office Suite
• Deep understanding of routing protocol configuration, including BGP and OSPF
• Excellent written and oral communication
• Ability to work independently
• Bachelor’s degree in Information Systems or related experience
• Industry-recognized certifications: NSE/FCP/FCSS, CCNA, CCNP
• NSE 4 / FCP required; NSE 5, 6, 7 / FCSS desired
• In-depth knowledge of Fortinet plus additional areas including Wi-Fi, SIP/RTP, VoIP, Video, DNS, SMTP, and HTTP/HTTPS/SSL
• Experience with Fortinet SD WAN

Additional skills (highly desired)

• Programming experience; Python experience highly desired
• Knowledge of other firewall vendors such as Palo Alto and SonicWall is highly desired
• Microsoft AD, Email, and Virtualization knowledge/experience highly desired

Technologies you’ll work with

• Fortinet, Meraki, FortiManager, FortiAnalzyer, FortiGate, UTM
• Visio, Wireshark, DHCP, DNS, VPN
• BGP, OSPF, IP routing protocols, VLANs
• SIP/RTP, VoIP, Video, SMTP, HTTP/HTTPS/SSL
• Fortinet SD WAN, Python
• Palo Alto, SonicWall, Microsoft AD, Email, Virtualization
• NSE/FCP/FCSS, CCNA, CCNP, NSE 4/FCP, NSE 5,6,7/FCSS
• Microsoft Visio/Office Suite