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Added 15 mins ago
Senior Full Stack Developer (Hybrid | Toronto, CAD)
Radiology Partners
Toronto, ON
Lead technical execution through code reviews, architectural guidance, troubleshooting, production monitoring, and mentoring of software engineers.
Added 15 mins ago
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- Full-time
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Added 28 mins ago
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Principal Technical Consultant, Google Cloud (GCP)
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Vancouver, BC
- Full-time
As a Principal Technical Consultant specializing in Google Cloud Platform (GCP), you will be a senior technical leader within our Google Cloud consulting practice. Leveraging your deep…
Added 28 mins ago
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Senior Project Manager, Business Transformation Office (BTO)
Coca-Cola Canada Bottling Limited
Toronto, ON
- Full-time
…Office project management function for Coke Canada Bottling. The Senior Project Manager will oversee a portfolio of approximately 35 cross-functional initiatives, steward the project…
Added 44 mins ago
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Sr. Software Engineer– Kernel & Device Drivers (Temp 1 Year Contract)
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- Temporary
AMD is looking for a senior software engineer to join our growing team. As a key contributor you will be part of a leading team to drive and enhance AMD's abilities to deliver the highest…
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We are seeking a Senior Researcher to join our team and contribute to the advancement of key projects around agentic coding.
Added 54 mins ago
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Chief of Staff
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- Full-time
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Added 56 mins ago
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Forward Deployed AI Engineer
Accenture
Calgary, AB · Vancouver, BC · Ottawa, ON · Toronto, ON
- Full-time
Minimum of 7 years of experience leading software engineering teams, including delivery oversight, resource allocation, and professional development of direct reports
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Calgary, AB · Vancouver, BC · Ottawa, ON · Toronto, ON
- Full-time
10–15 years of experience leading software engineering teams, including delivery oversight, resource allocation, and professional development of direct reports
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Senior Java Developer Solution Architect - Vice President
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- Full-time
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Added 1 hour ago
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Senior Software Developer, Full-Stack
Intuit
Toronto, ON
- Full-time
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Added 1 hour ago
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Added 1 hour ago
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Added 1 hour ago
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Software Engineer
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Senior Software Developer, AI Solutions
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Senior Java Back - End Developer - Assistant Vice President
Citi
Mississauga, ON
- Full-time
We’re seeking a seasoned Senior Java Back - End Developer with 5+ years of experience to lead end-to-end technical design and delivery of mission‑critical systems. You will own architecture…
Added 1 hour ago
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Principal Architect
BDO
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- Full-time
Demonstrated success as a senior technical authority leading architects through technical credibility, influence, coaching, mentoring, and design governance.

Tata Consultancy Services

Senior L3 Network Engineer (Network SME and Automation Lead)

Toronto, ON, Canada

$100,000 to $120,000 CAD / year · Full-time

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Job details

Pay: $100,000 to $120,000 CAD / year
Job type: Full-time
Apply by: Nov 6, 2026
Posting language: English
Posted: Oct 7, 2026

Original job description

Inclusion without Exception

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

TCS has been serving the Canadian marketplace for more than 35 years and today is the technology partner of choice for many of the country's leading organizations. As one of the largest IT services providers in Canada and globally, TCS is aiming to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.

Rooted in the heritage and values of the Tata Group, TCS is focused on creating long-term value for its clients, investors, employees, and the communities it serves. With a highly skilled workforce supporting customers from coast to coast, TCS has consistently been recognized as a Top Employer by the Top Employers Institute, including a recent top ranking at the country level.

TCS also sponsors 14 of the world's most prestigious marathons and endurance events, including the TCS Toronto Waterfront Marathon, reflecting its commitment to health, sustainability, and community empowerment.

Senior L3 Network Engineer (Network SME and Automation Lead)

Role Overview

The Senior L3 Network Engineer is the technical lead for the Switch Lifecycle Refresh Program, with responsibility for engineering design, migration planning, technical governance, advanced troubleshooting, automation development, and escalation management. This role independently leads complex refresh activities, owns annual automation initiatives, and drives continuous improvements in operational efficiency through scripting and process innovation.

Core Responsibilities

Network Refresh Engineering

Assess switch refresh candidates and confirm hardware lifecycle requirements.
Conduct technical discovery and deployment-readiness assessments.
Develop deployment strategies, methods of procedure (MOPs), and rollback plans.
Validate hardware, software, and feature compatibility.
Lead migration planning, implementation, and validation activities.
Review and improve engineering standards, templates, and implementation practices.

Advanced Troubleshooting and Escalation

Diagnose and resolve complex Layer 2 and Layer 3 network issues.
Perform root-cause analyses and assess service and business impacts.
Provide senior-level support during critical outages and maintenance windows.
Analyze packet captures, device logs, alarms, and telemetry.
Investigate routing, switching, convergence, and performance anomalies.

Automation and Innovation

Design, develop, test, and implement network automation solutions.
Automate configuration generation, validation, and deployment activities.
Develop reusable pre- and post-cutover validation scripts.
Implement configuration-compliance auditing and drift detection.
Build dashboards for deployment tracking, lifecycle status, and operational reporting.
Identify and deliver at least one measurable productivity or efficiency improvement each year.

Technical Leadership and Governance

Mentor L2 engineers and support their technical development.
Review change requests, implementation plans, MOPs, and rollback procedures.
Lead technical governance, design assurance, and readiness reviews.
Contribute to architecture, standards, and solution-design discussions.

Required Skills

Cisco Technologies

Cisco Catalyst 9200, 9300, 9400, 9500, and 9600 platforms
Cisco IOS XE
Cisco DNA Center

Arista Technologies

Arista EOS
Arista campus and data centre switching solutions

Routing and Switching

Routing protocols: BGP, OSPF, and EIGRP
High availability: HSRP and VRRP
Layer 2 technologies: VLANs, STP, MST, and EtherChannel
Network access and traffic management: 802.1X and QoS

Network Services

Core services: DHCP, DNS, and NTP
Authentication and access control: TACACS+ and RADIUS
Monitoring and logging: SNMP and Syslog

Automation

Programming and scripting: Python
Automation frameworks and libraries: Ansible, Nornir, and Netmiko
Version control and integration: Git and REST APIs

Tools

SolarWinds
ServiceNow
Wireshark
Cisco DNA Center

Salary Range - CA$ 100,000 - CA$ 120,000 Per Year

Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.

Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.

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More about this job

Responsibilities

Lead switch lifecycle refresh engineering, including technical discovery, design, migration planning, implementation, validation, and governance. Resolve complex network issues, develop automation and operational improvements, and mentor engineers while overseeing technical readiness and change quality.

Requirements

The role requires senior-level expertise with Cisco Catalyst and Arista switching platforms, IOS XE, routing and switching protocols, network services, and advanced troubleshooting. It also calls for Python-based automation using tools such as Ansible, Nornir, and Netmiko, along with technical leadership and experience guiding complex refresh activities.

Skills

Cisco Catalyst
Cisco IOS XE
Cisco DNA Center
Arista EOS
BGP
OSPF
EIGRP
HSRP
VRRP
VLANs
Spanning Tree Protocol
802.1X
Quality Of Service
Python
Ansible
Nornir

Visa sponsorship

Not detected in the job text

Keywords

Cisco Catalyst 9200
Cisco Catalyst 9300
Cisco Catalyst 9400
Cisco Catalyst 9500
Cisco Catalyst 9600
Cisco IOS XE
Cisco DNA Center
Arista EOS
BGP
OSPF
EIGRP
HSRP
VRRP
VLANs
STP
MST
EtherChannel
802.1X
QoS
DHCP
DNS
NTP
TACACS+
RADIUS
SNMP
Syslog
Python
Ansible
Nornir
Netmiko

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