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Added 13 hours ago
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Senior Mobile Solutions Lead
Cognizant
Toronto, ON
- $60,000 to $95,000 CAD / year
- Full-time
We are seeking an experienced 6-10 years of experience Senior Mobile Solutions Lead to drive the design and development of mobile and backend solutions supporting the Life & Annuities…
Added 1 day ago
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Sr. React Native Engineer | US/Canada
Pack.com
Remote, Canada
- Remote
…now expanding our mobile surface. We are looking for an elite Senior React Native Engineer to lead the engineering of our iOS and Android mobile apps from development builds through app…
Added 1 day ago
SC
Experienced Intermediate Software Engineer, Ruby on Rails
SureSwift Capital
Remote, Canada
- $90,000 to $120,000 CAD / year
- Full-time
- Remote
…and can explain it. You'll work side by side with our other senior engineer, two engineers who share production and learn from each other, and report to the GM, who leads the product. This…
Added 1 day ago
CO
Senior Mobile Developer (React Native)
Caspian One
Toronto, ON
- Full-time
Senior Mobile Developer (React Native) | Incorporated Contract | Long-term project
Added 1 day ago
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Senior Manager Technical Program Management
Zebra Technologies
Mississauga, ON · CAN - Mississauga, Canada
- Full-time
We are seeking a Senior Manager of Technical Program Manager (software and hardware) with proven functional leadership ability to develop a team of program managers operating across all…
Added 1 day ago
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Winter 2027: Software Developer Co-op, Front End (8 months)
Intuit
Toronto, ON
- Internship
…dedicated programming and social events, and get exposure to senior leadership and cross-functional work across Intuit's product ecosystem. Learn more about our Intern and Co-op Program…
Added 1 day ago
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Network Operations Analyst
Royal Bank of Canada
Toronto, ON
- Full-time
Strong communication and ability to communicate effectively with diverse stakeholders, from technical specialists to senior managers.
Added 1 day ago
IG
Senior iOS Developer
Insight Global
Toronto, ON
- $50 to $80 CAD / hour
- Contract
Senior-level experience developing and delivering production iOS applications.
Added 1 day ago
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Network Operations Analyst
RBC
Toronto, ON
- Full-time
Strong communication and ability to communicate effectively with diverse stakeholders, from technical specialists to senior managers.
Added 1 day ago
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Senior Software Engineer
Xsolla
Canada
- Full-time
You're a hands-on mobile engineer with 4+ years of experience, primarily in React Native across iOS and Android, who's ready to step into (or continue in) a tech lead role. You've shipped…
Added 1 day ago
IG
Senior IOS Developer
Insight Global
Toronto, ON
- $65 to $78 CAD / hour
- Contract
Insight Global is looking for a Senior iOS Developer to join a leading financial institution’s Digital Investing team. This individual will be responsible for building and enhancing modern,…
Added 2 days ago
TG
Senior Network Engineer
TMX Group
Toronto, ON
- Full-time
We are seeking a highly skilled and motivated Senior Network Engineer with 7+ years of experience to join our dynamic infrastructure team. In this full-time role, you will be an integral…
Added 2 days ago
UG
Supervisor, Creative Services and Strategy (Temporary, Full-time) Vancouver
Union Gospel Mission (Vancouver)
Vancouver, BC
- Full-time
Work closely with Senior Development Officer, Marketing to ensure all creative assets effectively support campaign tactics and goals.
Added 2 days ago
EH
Senior Software Developer
Eli Health
Montreal, QC
- Full-time
Eli is looking for a Senior Software Developer to join our product team full-time, starting as soon as possible. You’ll own features end to end across our mobile app and backend, from the…
Added 2 days ago
TG
Senior Network Engineer
TMX Group
Toronto, ON
- Full-time
We are seeking a highly skilled and motivated Senior Network Engineer with 7+ years of experience to join our dynamic infrastructure team. In this full-time role, you will be an integral…
Added 2 days ago
SL
Senior Software Engineer, Operations – Core Java & iOS focus
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
- Full-time
We are looking for a Senior Software Engineer with strong full-stack Java experience and hands-on iOS development skills. You will develop and support reliable applications across the web,…
Added 2 days ago
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Technology - Senior Engineer/Engineer, Cybersecurity
Aritzia
Vancouver, BC
- Full-time
…enable the business to operate and innovate securely. As the Senior Engineer/Engineer, Cybersecurity, you will engineer, implement, automate, and continuously improve security across…
Added 2 days ago
AS
Mobile Developer (React Native)
Apex Systems
Toronto, ON
- $60 to $70 USD / hour
- Full-time
Native Developer experience with Reactive Native
Added 3 days ago
PI
Senior Software Engineer, Accounts
PENN Interactive
Canada
- Full-time
Added 3 days ago
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Full Stack Engineer, Agentic AI
Lazer
Remote, Canada
- Contract
- Remote
Lazer is a world-class digital product studio composed of 180+ senior engineers and designers with backgrounds from companies like Apple, Google, Coinbase, and more. With our product…
Added 3 days ago
E
Braze Architect
EXL
Canada
- Full-time
8-12 years overall; 5+ years hands-on in Braze; 3+ years in architect or Developer roles
Added 4 days ago
RI
Senior SDET – iOS Automation (Xcode, XCUI, Python/Java)
Raas Infotek
Vancouver, BC
- Contract
Job role: Senior SDET – iOS Automation (Xcode, XCUI, Python/Java)
Added 4 days ago
RI
Senior SDET – iOS Automation (Xcode, XCUI, Python/Java)
Raas Infotek
Vancouver, BC
- Contract
Job role: Senior SDET – iOS Automation (Xcode, XCUI, Python/Java)
Added 4 days ago
Unified Customer Experience - Consultant - Senior Full Stack Engineer
Questrade Financial Group
Calgary, AB
We’re looking for our next Senior Software Engineer. Could It Be You?
Added 4 days ago
A
Product Designer
Achievers
Toronto, ON
- Full-time
…it gets solved, and grow your skills with support from the senior designers on the…

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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