At CN, we are committed to our pursuit of excellence. We take pride in delivering work of the highest standard, continually innovating to shape the railroad of the future. As responsible railroaders, we make the right decisions every time, putting safety first, acting with unwavering integrity, and holding ourselves accountable for our actions. We believe in succeeding together—by fostering inclusivity and collaboration, we sustainably deliver exceptional results for our customers.
We welcome students aboard to join our team and play a valuable role in the engine that keeps the North American economy on track. Expect an exciting environment where you’ll be encouraged to learn, grow, and be recognized for your unique ideas and contributions. Work on pivotal projects with experienced collaborators who will encourage you to share your perspectives, and thrive in our close-knit, safety-focused culture. The careers we offer are meaningful because the work we do matters. Join us and get your career moving!

Intern, Operational Technology (OT) Security Architecture

This is a full-time summer internship lasting from May 11, 2026, until August 28, 2026.

Job Summary

The Intern, Operational Technology (OT) Security Architecture is responsible for executing activities that support the Chief Information Security Office’s (CISO) OT Security Architecture team with the development and review of OT security architectures. The OT Security Architecture team is responsible for developing, establishing and reviewing best practices for OT security architecture designs, procedures, and policies. In addition, the OT Security Architecture team provides support, consultation, and revision for OT projects.

Major Responsibilities

• Assist the OT Security Architecture team on key project deliverables
• Assist with gathering and collating information about security architectures of OT systems
• Provide assistance in gap analysis of security aspects of existing and planned OT systems
• Assist with developing, maintaining and updating OT security architecture diagrams and documentation
• Interface with various system owners and designers to assist with OT security architecture development
• Gather information about possible vendors for engagement on proof of concepts
• Assist with preparing security reviews of draft OT system architectures
• Participate in meetings with OT system stakeholders and system owners, and assist with preparing meetings materials, presentations and minutes
• Update documentation

Requirements

• Communicates with impact
• Applies critical thinking
• Demonstrates agility and drives change
• Eagerness to learn with a general understanding and interest in a career in Cybersecurity, Risk Management, and technology best practices as they apply to OT systems
• Experience in Computer Science, Computer Engineering, or Industrial Process Automation*
• Experience in Operational Technology*
• Experience in Cybersecurity*

Education

• Working towards a Bachelor’s Degree in Computer Science, Computer Engineering, Industrial Process Automation, or equivalent field

• Any experience/education/skills/knowledge for these above would be considered as an asset

About CN

CN is a premium railroad that sustainably generates value for our customers, shareholders, employees, and stakeholders with an unwavering commitment to safety and service. 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. CN's network connects Canada's Eastern and Western coasts with the U.S. South through a 20,000-mile rail network. CN and its affiliates have been contributing to community prosperity and sustainable trade since 1919. CN powers the North American economy and is committed to programs supporting social responsibility and environmental stewardship.

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 often don't apply unless they feel they fit the job posting at 100%. To all potential applicants, even if you don't meet 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 get in touch with our team at cnrecruitment@cn.ca.

As an equal opportunity employer, qualified candidates 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.

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