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Expert System Architecture
Expert System Architecture-December 2024
Toronto
Dec 2, 2025
ABOUT CN
CN is a world-class transportation leader and trade-enabler focused on safety, sustainability, and our customers.
10,000+ employees
Consumer Goods & Services
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About Expert System Architecture

  At CN, we work together to move our company-and North America-forward. Be part of our Information & Technology (I&T) team, a critical piece of the engine that keeps us in motion. From enterprise architecture to operational technology, our teams use the agile methodology to automate and digitize our railroad ensuring our operations run optimally and safely and our employees can focus on value-added tasks. You will be able to develop your skills and career in our close-knit, safety-focused culture working together as ONE TEAM. The careers we offer are meaningful because the work we do matters. Join us!

  Job Summary

  The System Architect Expert is the accountable architect to all IT Stakeholders () to define & recommend a sound End to End architecture that will support the Business needs and aligned with the IT directions & standards, and to ensure that the solution defined gets implemented per definition, especially in the context of Mainframe and Legacy Systems Modernization. The end to end architecture encompasses all architecture layers: Business, application, information and technology (see appendix).

  Duties & Responsibilities:

  Main Responsibilities

  Evaluate

  • Assess the current state of legacy systems in scope

  • Finalize future state architecture of the legacy systems

  • Implement the roadmap for legacy modernization as per the defined priorities and dependencies

  • Plan and drive architecture activities required to deliver it

  • Analyse and have good understanding of requirements and provide estimates for design, and development of required functionality

  Provide direction & lead

  • Drive alignment with the Enterprise & Domain strategies, master plans & roadmaps.

  • Handle risk mitigation and drive issue escalation and resolution related to the architecture

  • Ensure the architecture is understood by the designers and I&T integrators that will design the solution per the architecture specifications

  • Lead simultaneous initiatives

  Sign-off on proposed Solution

  • Confirm the end-to-end solution proposed meets business needs and is aligned with the Architecture, Security and I&T Operation standards

  • Confirm I&T stakeholders support the solution or waivers for non-compliancy

  Requirements

  Experience

  • Minimum 15 years of experience in Information and Technology

  • Minimum 10 years of overall work experience

  • Minimum 5 years of experience in a similar role and demonstrating technical leadership qualities or overseeing deliverables

  Any experience for these above would be considered as an asset

  Education/Certification/Designation

  • Bachelor's Degree or equivalent work experience

  Skills/Knowledge

  • Experience in large-scale legacy / mainframe modernization programs

  • Strong understanding of domain-driven design approach based on business capability model

  • The role requires people skills to influence and orient business and technical audience toward a common goal that is satisfying all stakeholders

  • Capable in building collaborative cross functional relationships, pulling together and maintaining a cohesive and high functioning team

  • Experience working with multi-culture, distributed offshore and onshore development teams in dynamic and complex environment

  • Capable to lead team on a mandate and to lead decisions

  • Capable of building and safekeeping integrity and credibility among all solution's stakeholders (Business & IT)

  • Ability to deliver mandate with great autonomy - self-driven

  • Strong ability at taking hard decisions by understanding and explaining trade-offs between business enablement and economics impacts

  • Strong Architecture knowledge within numerous fields: Business, systems, Application, Information and technology architecture facets

  • Strong ability to bring complex concept to actionable architecture deliverable

  • Strong capacity to learn new concepts and technology quickly with the capacity to coach, mentor and develop other in learning them

  • Excellent written and oral communications skills

  Experience

  • 15+ years experience in IT and 5+ years in similar role

  • Experience in CICS, JCL and DB2

  About CN

  CN is a world-class transportation leader and trade-enabler. Essential to the economy, to the customers, and to the communities it serves, CN safely transports more than 300 million tons of natural resources, manufactured products, and finished goods throughout North America every year. As the only railroad connecting Canada's Eastern and Western coasts with the Southern tip of the U.S. through a 19,500 mile rail network, CN and its affiliates have been contributing to community prosperity and sustainable trade since 1919. CN is committed to programs supporting social responsibility and environmental stewardship. At CN, we work as ONE TEAM, focused on safety, sustainability and our customers, providing operational and supply chain excellence to deliver results.

  At CN, we are dedicated to building North America's safest, most inclusive and sustainable railroad, which includes reflecting the communities in which we operate. Research shows that candidates from underrepresented groups often don't apply unless they feel they fit the job posting at 100%. Even if you don't see yourself in every job requirement listed in a posting, we still encourage you to apply. If you require an accommodation for the recruitment process (including alternate formats of materials, accessible meeting rooms or other accommodations), please reach out to our team at [email protected].

  As an equal employment opportunity employer, all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, and other protected status as required by applicable law. We thank all applicants for their interest, however, only candidates under consideration will be contacted. Please monitor your email on a regular basis, as communication is primarily made through email.

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