Senior AI Data Scientist

Attendance

Hybrid

Job number

33760

Category

Senior Professional

Status: Permanent

Type of Contract

Permanent

Schedule: Full-Time

Full Time / Part Time?

Full-Time

Posting date

07-Jul-2026

Area(s) of interest: Business intelligence and data

Location(s): Montreal

A career as a Senior AI Data scientist in the Hyper Automation – Cross-sector Solutions, Acceleration and Data team at National Bank means serving as an applied Artificial Intelligence specialist. This position allows you to have a concrete impact on the performance and evolution of an enterprise platform thanks to your expertise in applied data science, model evaluation and continuous improvement. You contribute directly to the quality, reliability and evolution of an intelligent document processing platform used on a large scale. Your role focuses on measurable results, improving models in production and delivering concrete value to business teams.

Your job

Define and develop quality metrics related to classification, extraction, validation and confidence scores
Build and maintain the reference, validation and test data sets needed to evaluate models
Analyze production results and identify the causes of problems in order to propose concrete improvements
Help develop models, prompts, confidence thresholds and validation rules
Compare different versions to detect regressions and support releases
Track performance over time to identify drifts and recommend adjustments

Your team

Cross-sector Solutions, Acceleration and Data, you are part of a multidisciplinary team of specialists in business analysis, development, architecture and operations. It is also a specialised team that works in an agile, proactive and collaborative manner to improve processes and develop automation capabilities across the Bank. You work in a collaborative environment where quality, discipline and continuous improvement are at the heart of our priorities.

The Bank values continuous development and internal mobility. Our personalised training programs, based on on on-the-job learning, help you master your profession and develop new fields of expertise. Tools such as the Data Academy, language training, the Harvard Learning Centre and coaching and mentoring support are available to you at any time.

Prerequisites

A bachelor’s or master’s degree in a related field and 7 to 10 years of relevant experience
Experience in model evaluation, advanced analytics or improving solutions in production
Master the concepts related to performance metrics, validation and monitoring of models
Solid experience with Python and solid knowledge of SQL
Understand artificial intelligence issues in production, including robustness, drift, governance and security
Experience manipulating structured and unstructured data

Languages:

English, French

Reason to require this language: you will need to discuss frequently with our service providers or partners who speak a language other than French.

Skills

Artificial Intelligence Communication Data Structures Data Visualization Diversity & Inclusion Performance Analysis Problem Solving Python Teamwork Data-Driven Decision-Making Detail-oriented Initiative Learning Agility Resiliency Data pipeline

Your benefits

In addition to competitive compensation, upon hiring you’ll be eligible for a wide range of flexible benefits to help promote your wellbeing and that of your family such as:

* Health and wellness program, including many options

* Flexible group insurance

* Generous pension plan

* Employee Share Ownership Plan

* Employee and family assistance program

* Preferential banking services

* Involvement in community initiatives

* Telemedicine service

* Virtual sleep clinic

We have an offer that keeps up with trends as well as your needs and those of your family.

Our dynamic work environments and cutting-edge collaboration tools foster a positive employee experience. We value employees’ ideas. Whether through our surveys or programs, regular feedback and ongoing communication are encouraged.

Making a bold move in a people-first environment

We’re a bank on a human scale that stands out for its courage, entrepreneurial culture, and passion for people. Our mission is to have a positive impact on people’s lives. Our core values of partnership, agility, and empowerment inspire us, and inclusion is central to our commitments. We aim, wherever possible, to provide a barrier-free and accessible environment to all employees.

We strive to provide accessibility measures throughout the recruitment process within the limits of our available resources. If you require accommodations, feel free to let us know during our initial conversations. We welcome all candidates! What can you bring to our team?

Join us!

Apply

For an environment that supports your career path

There are many varied opportunities for you to progress and develop, and move ahead in your career. This includes on-the-job learning and training, co-development and pairing with other employees, professional support and mentoring, internal career days or discussion forums with our leaders.

For an inclusive and diverse environment

We foster inclusion in an environment where each person’s unique qualities, whether visible or invisible, are celebrated and valued. We welcome all candidates! What can you bring to our team?