Sr. It Build Specialist

Work Location:
Toronto, Ontario, Canada
Hours
37.5
Line Of Business
Technology Solutions
Pay Details
$96,900 - $136,800 CAD
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Job DescriptionTDSGI Network is seeking a Senior Network Infrastructure Specialist based in Canada to support TDS network infrastructure globally. The successful candidate will bring deep, hands‑on expertise in enterprise networking, low‑latency infrastructure, IP multicast, market‑data distribution, exchange connectivity, routing and switching, incident management, and controlled production delivery. The role will help maintain and enhance the resilient, secure, and high‑performing network services that support TDS electronic‑trading platforms and global business operations.
This is a hands‑on senior position covering data‑center networks, colocation environments, WAN, MAN, LAN, SD‑WAN, Internet, B2B connectivity, office infrastructure, and network security integration. The individual will collaborate with regional and global technology teams, Enterprise Network Engineering, Network Operations, cybersecurity partners, application teams, telecommunications carriers, exchanges, colocation providers, managed service providers, and technology vendors.
The role requires strong technical judgment, disciplined change execution, effective incident leadership, comprehensive technical documentation, and the ability to coordinate complex infrastructure initiatives across regions and time zones.
Key AccountabilitiesGlobal Network Infrastructure Delivery
Lead and support the design, implementation, configuration, migration, integration, and lifecycle management of global TDS network infrastructure.
Deliver network solutions across data centers, colocation facilities, trading locations, offices, WAN, MAN, LAN, SD‑WAN, Internet, B2B, exchange connectivity, and out-of-band-management environments.
Translate business, application, security, resiliency, capacity, and operational requirements into secure, scalable, supportable, and highly available network solutions.
Lead or contribute to network modernization, infrastructure currency, data‑center expansion, office buildouts, network segmentation, hardware replacement, software upgrades, and technology transformation initiatives.
Coordinate implementations involving multiple regions, technical teams, telecommunications providers, colocation providers, exchanges, vendors, and business stakeholders.
Ensure solutions align with approved architecture, engineering standards, security controls, operational requirements, naming conventions, and support models.
Complete technical validation and operational‑readiness activities before transitioning new or changed infrastructure into production.
Low‑Latency and Multicast Networking
Design, implement, support, optimize, and troubleshoot low‑latency network infrastructure supporting electronic‑trading and market‑data applications.
Support multicast market‑data distribution, including multicast routing, source and receiver connectivity, group management, traffic replication, and end‑to‑end delivery.
Troubleshoot multicast issues involving: PIM, IGMP, Rendezvous points, Reverse Path Forwarding, Multicast routing and forwarding tables, Duplicate or missing multicast traffic, Packet loss, congestion, latency, and out‑of‑sequence traffic
Analyze latency‑sensitive traffic using packet captures, interface statistics, network telemetry, routing information, device logs, and monitoring platforms.
Identify and help remediate latency, jitter, packet loss, microbursts, congestion, buffering, unnecessary network hops, and capacity constraints.
Work with trading‑application, market‑data, exchange‑connectivity, security, server, and infrastructure teams to understand traffic flows, latency expectations, resiliency requirements, and failover behavior.
Support connectivity to exchanges, market‑data providers, B2B partners, external clients, vendors, and colocation facilities.
Validate primary and disaster‑recovery network paths, multicast convergence, redundancy, capacity, and failover behavior.
Lead technical troubleshooting during incidents affecting electronic trading, market‑data delivery, exchange connectivity, or other latency‑sensitive services.
Routing, Switching, and Network Services
Configure, support, and troubleshoot complex Layer 2 and Layer 3 network environments.
Provide advanced expertise in technologies such as: BGP, OSPF, TCP/IP, IP multicast, VLAN, VRF, Route filtering and redistribution, First‑hop and routing resiliency, Quality of Service, EVPN/VXLAN, Network segmentation, High‑availability routing and switching
Support Arista and Cisco network platforms in data‑center, colocation, and low‑latency environments.
Support routing integration, segmentation, policy implementation, NAT, and connectivity troubleshooting involving Palo Alto firewall infrastructure.
Analyze end‑to‑end traffic paths across switching, routing, firewalls, telecommunications carriers, exchange networks, third‑party services, and application infrastructure.
Support DNS, DHCP, IP address management, AAA, logging, network‑time, and related infrastructure‑service integrations where applicable.
Maintain alignment with approved hardware, software, configuration, and security standards.
Operational Support and Incident Management
Provide senior‑level troubleshooting and escalation support for complex network incidents, service degradation, and production connectivity issues.
Lead or participate in major‑incident technical triage, impact assessment, service restoration, stakeholder communication, and follow‑up remediation.
Diagnose routing, switching, multicast, firewall, circuit, packet‑loss, latency, capacity, application‑connectivity, network‑path, and device‑health issues.
Work with Network Operations and other infrastructure teams to maintain service availability, stability, and resiliency.
Coordinate with telecommunications carriers, exchanges, colocation providers, managed service providers, equipment vendors, and B2B partners during service‑impacting events.
Develop corrective actions addressing the underlying stability, resilience, capacity, monitoring, or maintainability concerns identified during incident investigations.
Contribute to post‑incident reviews and ensure agreed technical remediation actions are documented and completed.
Participate in an on‑call or after‑hours support rotation where required.
Monitoring, Performance, and Capacity Management
Use enterprise and TDS monitoring platforms to identify incidents, investigate performance, validate infrastructure health, and support capacity planning.
Monitor and analyses latency, jitter, packet loss, interface errors, discards, utilization, routing state, device health, multicast behavior, and network‑path performance.
Ensure new or changed infrastructure is integrated with the required monitoring, logging, configuration‑management, inventory, and alerting platforms.
Contribute to network‑performance baselines, service‑availability reviews, capacity assessments, and proactive remediation.
Identify opportunities to improve visibility through telemetry, dashboards, higher‑frequency monitoring, packet analysis, and automation.
Support performance testing and technical validation for new applications, infrastructure changes, capacity increases, and disaster‑recovery exercises.
Change, Risk, and Control Management
Prepare and execute production changes in accordance with established change‑management, risk‑management, and approval requirements.
Produce clear implementation, validation, rollback, impact, dependency, risk, and communication plans.
Ensure production changes are technically reviewed, appropriately approved, completed within authorized implementation windows, and closed with the required evidence.
Evaluate technical and operational risks associated with network implementations, migrations, incidents, exceptions, and temporary solutions.
Escalate design exceptions, operational gaps, infrastructure risks, and deviations from approved standards to the appropriate stakeholders.
Support audit, compliance, security, software‑currency, asset‑management, vulnerability‑remediation, and control‑remediation activities.
Ensure network infrastructure remains on approved and supportable hardware and software versions.
Participate in failover tests, disaster‑recovery exercises, resiliency validation, and remediation of identified gaps.
Documentation and Operational Readiness
Create and maintain high‑quality network diagrams, high‑level designs, low‑level designs, implementation plans, rollback plans, operational support documents, standards, procedures, inventories, and troubleshooting guides.
Document network topology, routing, segmentation, multicast flows, monitoring, failover behavior, circuit information, service dependencies, support contacts, and escalation paths.
Ensure newly delivered infrastructure has complete monitoring, support, asset, configuration, security, recovery, and operational documentation.
Maintain accurate infrastructure information within approved repositories and operational systems.
Conduct or participate in design reviews, operational‑readiness reviews, change reviews, post‑implementation reviews, and knowledge‑transfer sessions.
Develop reusable documentation and implementation patterns that improve global consistency and reduce operational risk.
Technical Leadership and Collaboration
Act as a senior technical resource and escalation point for complex network initiatives, incidents, and infrastructure decisions.
Independently lead technically complex implementations, migrations, upgrades, troubleshooting activities, and service‑restoration efforts.
Provide technical guidance and mentoring to other team members while promoting collaboration and knowledge sharing across regions.
Lead technical discussions involving architecture, engineering, operations, security, application teams, project stakeholders, vendors, and service providers.
Review technical designs and deliverables to identify implementation, resilience, security, capacity, supportability, monitoring, and operational‑readiness gaps.
Communicate complex technical matters clearly to technical and non‑technical audiences.
Manage multiple concurrent priorities while maintaining delivery quality, control compliance, and production stability.
Promote standardization, automation, repeatable delivery, improved observability, and operational simplification.
Represent TDSGI Network requirements while maintaining alignment with enterprise architecture, engineering, and security direction.
Required Qualifications
Significant hands‑on experience supporting complex enterprise network infrastructure, preferably within financial services or another highly available, regulated environment.
Advanced experience supporting low‑latency networks in capital‑markets, electronic‑trading, market‑data, or similarly time‑sensitive environments.
Strong understanding of packet forwarding, latency, jitter, packet loss, microbursts, congestion, buffering, and end‑to‑end network‑path analysis.
Advanced knowledge of IP multicast, including: PIM Sparse Mode, IGMP, Rendezvous‑point concepts, Reverse Path Forwarding, Multicast source and receiver behavior, Multicast routing and forwarding tables, Multicast troubleshooting
Experience supporting multicast market‑data distribution across datacenter, colocation, or exchange‑connectivity environments.
Advanced routing and switching knowledge, including: BGP and eBGP, OSPF, TCP/IP, VLANs and VRFs, Route filtering and redistribution, Quality of Service, High‑availability routing and switching, Resilient Layer 2 and Layer 3 designs
Hands‑on experience with Arista and Cisco networking platforms in production environments.
Practical experience with Arista Cloud Vision.
Experience with Palo Alto firewalls, including routing integration, segmentation, NAT, security‑policy implementation, and troubleshooting.
Experience supporting WAN, MAN, LAN, Internet, MPLS, SD‑WAN, data‑center, branch, office, and colocation connectivity.
Experience supporting B2B, third‑party, client, vendor, exchange, or extranet connectivity.
Strong troubleshooting skills using CLI diagnostics, packet captures, telemetry, device logs, routing tables, multicast tables, interface statistics, and monitoring data.
Experience executing production network changes within formal change‑management and risk‑control processes.
Ability to create and review high‑level designs, low‑level designs, network diagrams, implementation plans, validation plans, rollback plans, and operational documentation.
Experience working with telecommunications carriers, exchanges, colocation providers, equipment vendors, managed service providers, and external technical teams.
Strong written and verbal communication skills.
Ability to work effectively across geographic regions, time zones, cultures, and organizational boundaries.
Ability to provide after‑hours support for production changes, incident response, testing, and service‑restoration activities when required.
Working Conditions
The position is based in Canada and supports TDS network services and infrastructure globally.
Regular collaboration with teams and stakeholders across North America, Europe, and Asia‑Pacific will be required.
Evening or weekend work is required for production changes, maintenance, failover testing, incident response, disaster‑recovery exercises, and business‑continuity activities.
Participation in an on‑call support arrangement may be required.
Occasional travel to TDS offices, data centers, colocation facilities, or other technology locations may be required.
Who We AreTD is one of the world's leading global financial institutions and is the fifth largest bank in North America by branches/stores. Every day, we strive to make every interaction, product, and experience remarkably human and refreshingly simple for over 27 million households and businesses in Canada, the United States and around the world. More than 95,000 TD colleagues bring their skills, talent, and creativity to foster deeper relationships, ensure disciplined execution, and build a simpler, faster banking experience. TD is deeply committed to being a leader in client experience, that is why we believe that all colleagues, no matter where they work, are client facing. Together, we are reimagining what banking can be for our clients, colleagues and communities.
Our Total Rewards PackageOur Total Rewards package reflects the investments we make in our colleagues to help them and their families achieve their financial, physical, and mental well‑being goals. Total Rewards at TD includes a base salary, variable compensation, and several other key plans such as health and well‑being benefits, savings and retirement programs, paid time off, banking benefits and discounts, career development, and reward and recognition programs.
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Additional InformationWe’re delighted that you’re considering building a career with TD. Through regular development conversations, training programs, and a competitive benefits plan, we’re committed to providing the support our colleagues need to thrive both at work and at home.
Please be advised that this job opportunity is subject to provincial regulation for employment purposes. It is imperative to acknowledge that each province or territory within the jurisdiction of Canada may have its own set of regulations, requirements.
Colleague DevelopmentIf you’re interested in a specific career path or are looking to build certain skills, we want to help you succeed. You’ll have regular career, development, and performance conversations with your manager, as well as access to an online learning platform and a variety of mentoring programs to help you unlock future opportunities.
If you’re passionate about helping clients and building deep, lasting relationships, TD offers diverse career paths where you can grow your expertise and make a meaningful impact.
We're committed to your success and foster a respectful workplace where diverse perspectives are valued, everyone has fair opportunities to grow, and you can unlock your full potential to achieve your career goals. Here at TD, we hire and develop the best.
Training & OnboardingWe will provide training and onboarding sessions to ensure that you’ve got everything you need to succeed in your new role.
Interview ProcessWe’ll reach out to candidates of interest to schedule an interview. We do our best to communicate outcomes to all applicants by email or phone call.
AccommodationYour accessibility is important to us. Please let us know if you’d like accommodations (including accessible meeting rooms, captioning for virtual interviews, etc.) to help us remove barriers so that you can participate throughout the interview process.
We look forward to hearing from you!
Language Requirement (Quebec Only)Sans Objet
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