Venture outside the ordinary - TMX Careers The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets. United as a global team, we’re connecting cross-functionally, traversing industries and geographies, moving opportunity into action, advancing global economic growth, and propelling progress. Through a rich exchange of ideas, meaningful collaboration, and a nimble operating model, we're powering some of the nation's most critical systems, fueling capital formation and innovation, bringing increased opportunity to business visionaries, product ingenuity to consumers, and career exploration to our team. Ready to be part of the action? We are seeking a highly skilled and motivated Senior Network Engineer with 7 plus years of experience to join our dynamic infrastructure team. In this full-time role, you will be an integral member responsible for implementing, maintaining, and supporting our mission-critical network infrastructure. With a focus on Multicast, Cisco datacenter technologies, F5 LTM/APM, FortiGate firewalls, and wireless, you will contribute to the development of resilient, scalable, and secure solutions that power our business. The ideal candidate is a proactive problem-solver with a minimum of 7 years of hands-on experience in large-scale, mission-critical networks. This role requires a solid background in data center technologies, firewalls, load balancers, and wireless technologies. You will support our current infrastructure and will participate in a 24/7 on-call rotation to ensure the stability of our critical applications. Key Responsibilities Part of a team of network engineers in the day-to-day operations and 24/7 support of our global enterprise network, ensuring service level agreements (SLAs) and uptime targets are met. Provide support for Datacenter, Campus, SAN, and Wireless infrastructure Serve as the top-tier technical escalation point for troubleshooting and resolving complex, high-priority network incidents. Engineer, implement, and optimize routing protocols (BGP) and switching environments to improve network efficiency and reduce latency. Develop and maintain network automation scripts using Python, Ansible, or similar tools to standardize configurations and automate repetitive operational tasks. Manage and maintain network security infrastructure, including firewal (Cisco ASA, Fortinet, AWS Native FW ), VPNs, and NAC solutions (Cisco ISE). Oversee the performance and capacity of the network, utilizing monitoring tools like SolarWinds, Splunk, and Wireshark to proactively identify and address potential issues. Lead network-related projects, from planning and design to implementation and post-deployment support. Mentor and train junior engineers on advanced troubleshooting techniques, network protocols, and operational best practices. Create and maintain comprehensive documentation, including network diagrams, standard operating procedures (SOPs), and knowledge base articles. Must-Haves: Bachelor’s degree in Information Technology, Computer Science, or a related field. 7+ years of experience in a network engineering role, with a focus on operations. Experience with Cisco ACI datacenter technology Expert-level knowledge of routing and switching protocols (TCP/IP, BGP, OSPF, EIGRP, Spanning Tree). Experience with Multicast networking (PIM-SM, IGMP, MSDP) Experience with Cisco wireless technologies Extensive hands-on experience with Cisco enterprise-grade hardware (Nexus, Catalyst) and NX-OS/IOS. Proven experience with firewall administration and policy management. Experience with F5 LTM/APM and Single Sign-On (SSO) integrations. Excellent communication and documentation skills, with proficiency in tools like Visio or Lucidchart. Experience with SAN technology (Cisco or Brocade) Cisco CCNP Datacenter or CCNP Enterprise certification Nice-to-Haves: Cisco CCIE or Fortinet NSE 4+ certification (or actively working towards). Cloud certifications (e.g., AWS Certified Solutions Architect Associate). Any scripting experience (Python, Ansible, or Terraform) This role is hybrid (2-3 days in the office) - based in Toronto downtown, ON. In the market for… Excitement - Explore emerging technology and innovation, as well as ventures and digital finance that shape the future of global markets! Experience the movement of the market while grounded in the stability of close to 200 years of success. Connection - With site hubs in some of the world’s most multicultural cities, we leverage our size and structure to create rich connections and belonging while experiencing powerful global impact through our work. Impact - More than a platform, we use our talents to power mission-critical systems that drive global economic advancement, innovation, and growth. As well, our employee-led Team Impact spreads social good via our giving strategy. Wellness - From empathetic leadership to a culture of flexibility and balance, we believe wellness at work creates the maximum yield and a stronger “we”. Plus, with a cloud-first and hybrid workstyle, as well as generous time-off and leaves, we support a life well lived! Growth - From a growth mindset in our work, to expansion in our business, TMX is home to action-takers energized by the achievement of ambitious growth. Ready to enrich your career with impactful work, leaders who truly care, and the flexibility and programs to help you thrive as part of #TeamTMX ? Apply now. Please note that our company is not currently sponsoring work permit applications and the applicant must be authorized to work in the country where this position is located. TMX is committed to creating and sustaining a collegial work environment in which all individuals are treated with dignity and respect and one which reflects the diversity of the community in which we operate. We provide accommodations for applicants and employees who require it. Our Culture: The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets. United as a global team, we’re connecting cross-functionally, traversing industries and geographies, moving opportunity into action, advancing global economic growth, and propelling progress. Through a rich exchange of ideas, meaningful collaboration, and a nimble operating model, we're powering some of the nation's most critical systems, fueling capital formation and innovation, bringing increased opportunity to business visionaries, product ingenuity to consumers, and career exploration to our team. Ready to be part of the action? Our Business: TMX Group operates global markets, and builds digital communities and analytic solutions that facilitate the funding, growth and success of businesses, traders and investors. TMX Group's key operations include Toronto Stock Exchange, TSX Venture Exchange, TSX Alpha Exchange, The Canadian Depository for Securities, Montréal Exchange, Canadian Derivatives Clearing Corporation Trayport and VettaFi, which provide listing markets, trading markets, clearing facilities, depository services, technology solutions, data products and other services to the global financial community. TMX Group is headquartered in Toronto and operates offices across North America (Montréal, Calgary, Vancouver and New York), as well as in key international markets including London, Singapore and Vienna. For more information about TMX Group, visit www.tmx.com. Follow TMX Group on Twitter: @TMXGroup.
