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) - Onboard & Network Technology

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

Job Summary

The Intern, Operational Technology (OT) - Onboard & Network Technology is responsible for working with CN’s OT Systems including Automated Train Inspection (ATI) program, Locomotive Onboard Systems (LOBS), Wayside systems and the Data Management of the information generated by these systems. The Intern Operational Technology Developer will be tasked with the development of automation to enable continuous improvement of OT deliverables, development and delivery of OT solutions, development and evaluation of the Machine Learning (ML) and Computer Vision pipelines and development of automated data solutions between Operational Technology and the cloud. The Intern Operational Technology Developer will be required to work with Solution Architects, RAMS Engineers, System Designers, Data Scientists, MLOps, DevOps teams across both the lifecycle of system development and of data management.

Main Responsibilities

• Define and develop applications and services
• Define, develop Unit Test code aligned with specifications and standards
• Participate in test planning and execution
• Participate in designing and implementing data warehousing solutions
• Assist in building and maintaining data pipelines for real-time and batch processing
• Support Data Scientist and ML Developer on the design and development of ML Solutions
• Apply and ensure compliance with appropriate CN Information and Technology (I&T) standards, including Security, Architecture, Project Delivery Methodology, Sarbanes-Oxley (SOX), Telecom, and Software Engineering
• Conduct code reviews and ensure coding standards

Requirements

• Proficient in programming languages such as Python, C++, Java, or SQL and familiarity with tools like Spark.
• Familiarity with database management systems (e.g., MySQL, PostgreSQL) and Data Lake concepts.
• Knowledge of DL frameworks such as Pytorch, Tensorflow, and Keras
• Knowledge with Linux Operating systems configuration and scripting
• Knowledge of Agile Development Operations and concepts related to continuous integration and pipeline management
• Knowledge of Computer Vision for Objects Detection, Segmentation, and Classification
• Applies critical thinking
• Communicates with impact
• Solves problems to create value
• Experience in Active Learning, Semi-Supervised Learning, and Few-Shot Learning algorithms*

Education

• Working toward a Bachelor’s Degree, Master’s Degree or Ph.D. Degree in Computer Science, Engineering, Artificial Intelligence (A.I.), ML or a related field of study .

• 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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