Expert AI Engineering-CA

Canadian National Inc.; Montreal; Hybrid; CAD 110,000 - 144,000; Full time

Benefits offered by this job

Annual bonus

Employee share investment program

Pension

Benefits

Job summary

Canadian National Inc. is seeking an AI Engineer to design, build, and operationalize enterprise AI solutions across data, analytics, automation and agentic capabilities.

The role collaborates with data scientists, platform engineers, cybersecurity, governance, and vendor teams to move AI use cases from concept to production. You will work with CN-approved platforms to deliver secure, scalable AI applications and agents, leveraging Vector DBs, RAG, and modern ML tooling in a hybrid CN office

Qualifications

• 2–5 years in software/data/AI delivery roles.
• Experience building enterprise copilots, chatbots, and AI agents.
• Experience with generative AI, LLMs, RAG, embeddings, prompt engineering and model evaluation.
• Knowledge of GCP, Vertex AI, Databricks, and related cloud AI/data platforms is preferred.

Responsibilities

• Design, build, test, and deploy AI-powered applications and workflows.
• Develop reusable APIs and services to accelerate AI delivery.
• Integrate AI solutions with enterprise data platforms and applications.
• Ensure governance, observability, and continuous improvement of AI systems.

Skills

Python

SQL

CI/CD

APIs

Git

LangChain

LangGraph

CrewAI

AutoGen

Cloud platforms

Education

Bachelor in CS/related

Tools

Databricks

Vertex AI

Gemini Enterprise

Spark/PySpark

Delta Lake

Unity Catalog

MLflow

Docker

Kubernetes

Job description

Please note that the language you select on this site will be the primary language used for all future communications regarding your application.

Highest Level Division: Technology Operations & Enablement

Posting Start Date: 11/2/26

Posting End Date: 09/26/26 11:59 EDT

Hiring Salary Range: $110000 - 144000

This range represents the hiring range. Salaries are determined individually depending on skills and experience. You will also be eligible to an annual bonus, employee share investment program (ESIP), Pension, Benefits and other perks.

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.

Job Summary

The incumbent is responsible for designing, building, integrating, and operationalizing enterprise artificial intelligence (AI) solutions that support CN's next generation of data, analytics, automation, and agentic capabilities. The role translates business opportunities into production-grade AI applications, AI agents, intelligent workflows, reusable components, and platform-integrated services. The incumbent works across software engineering, data engineering, machine learning, and generative AI to deliver secure, governed, reliable, and scalable AI solutions using CN-approved platforms and patterns. The role collaborates with AI architects, platform engineers, AI operations, data scientists, data engineers, business partners, cybersecurity, governance, architecture, and vendor teams to move AI use cases from concept to production.

Main Responsibilities

AI Engineering and Solution Delivery

• Design, develop, test, and deploy AI-powered applications, AI agents, and intelligent workflows that address business needs and deliver measurable value
• Build and enhance generative AI, machine learning, and automation solutions using CN-approved engineering patterns, platforms, and controls
• Implement Retrieval Augmented Generation (RAG), prompt engineering, model evaluation, and AI workflow automation patterns to support scalable production solutions
• Develop reusable application programming interfaces (APIs), services, and components that accelerate AI delivery and promote consistency across use cases

Data and Platform Integration

• Integrate AI solutions with enterprise applications, data platforms, business processes, and operational workflows
• Develop and optimize data pipelines, services, and interfaces that support reliable, secure, and scalable AI applications
• Contribute to enterprise AI platforms, including Databricks, Gemini Enterprise, Vertex AI, and related technologies, to support solution delivery
• Collaborate with data engineers, platform teams, and business partners to ensure AI solutions are aligned with enterprise architecture, data quality, and operational requirements

Governance, Operations and Continuous Improvement

• Apply AI governance, security, privacy, Responsible AI, and model risk controls throughout the solution lifecycle
• Support production deployment, monitoring, troubleshooting, quality evaluation, red-teaming, hallucination mitigation, and continuous improvement of AI solutions
• Document technical designs, decisions, limitations, and operational requirements to support maintainability, auditability, and successful handover

Working Conditions

The role has standard working conditions in an office environment with a regular workweek from Monday to Friday and is eligible to participate in CN's hybrid work model. The role involves managing priorities and delivering work within established timelines, with support from the team to ensure sustainable and effective workload management. Requirements

Experience

• Between 2 to 5 years of experience in software engineering, data engineering, machine learning engineering, AI engineering, or related technology delivery roles
• Experience building enterprise copilots, chatbots, document intelligence solutions, workflow assistants, AI agents, or agentic applications
• Experience with generative AI, large language models (LLMs), Retrieval Augmented Generation (RAG), vector search, embeddings, prompt engineering, agents, and model evaluation
• Experience with Google Cloud Platform, Vertex AI, Gemini Enterprise, Databricks, Spark/PySpark, Delta Lake, Unity Catalog, MLflow, or comparable cloud AI and data platforms*
• Experience implementing observability; quality evaluation; red-teaming; hallucination mitigation; safety controls; and continuous improvement practices for AI systems*
• Candidates with an equivalent combination of education, training, and experience will be considered

AI Engineering

• Between 2 to 5 years of experience in software engineering, data engineering, machine learning engineering, AI engineering, or related technology delivery roles
• Experience building enterprise copilots, chatbots, document intelligence solutions, workflow assistants, AI agents, or agentic applications
• Experience with generative AI, large language models (LLMs), Retrieval Augmented Generation (RAG), vector search, embeddings, prompt engineering, agents, and model evaluation
• Experience with Google Cloud Platform, Vertex AI, Gemini Enterprise, Databricks, Spark/PySpark, Delta Lake, Unity Catalog, MLflow, or comparable cloud AI and data platforms*
• Experience implementing observability; quality evaluation; red-teaming; hallucination mitigation; safety controls; and continuous improvement practices for AI systems*
• Candidates with an equivalent combination of education, training, and experience will be considered

*Any requirement above marked with (*) would be considered as an asset (not mandatory)

Education/Certification/Designation

Bachelor’s Degree in Computer Science, Software Engineering, Data Science, Artificial Intelligence, Information Technology, Engineering, or a related field, or equivalent experienceGoogle Cloud, Vertex AI, Machine Learning Engineer, Data Engineer, or related cloud or AI certification*Candidates with equivalent practical experience, education, or training will be considered*Any requirement above marked with (*) would be considered as an asset (not mandatory)

• We Care About Each Other
• We Strive for Excellence
• We Succeed Together
• Vision and strategic thinking
• Impactful and inclusive leadership
• Performance and value delivery
• Empowerment and talent development
• Strategic communication and influence
• Managerial courage and decisiveness
• Compliance
• AI Literacy and data orientation
• High-Impact Execution
• Process optimization

Technical Skills/Knowledge

• Strong programming skills in Python and Structured Query Language (SQL), with experience using APIs, Git, CI/CD, testing, and software engineering practices
• Knowledge of AI frameworks and tools such as LangChain, LangGraph, CrewAI, AutoGen, FastAPI, Streamlit, Docker, Kubernetes, or related technologies
• Understanding of data governance, data quality, metadata, lineage, security, privacy, Responsible AI, and enterprise technology delivery practices

Additional Information (If Any)

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 an 18,800-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 [e-mail].

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.

Please monitor your email on a regular basis as communication to applicants is done via email