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Added 6 mins ago
Executive Director of Policy and Legislation
Innovation and New Technology
Winnipeg, MB
…that support innovation and economic growth. The role advises senior government officials, oversees planning, resource management, and organizational performance, and fosters a respectful,…
Added 7 mins ago
Senior Technical Analyst
Innovation and New Technology
Winnipeg, MB
Reporting to the DTS Service Manager, the Technical Analyst supports the implementation, maintenance, and optimization of infrastructure services, including servers, networks, cloud…
Added 13 mins ago
M
Senior Manager, Organic Growth
Mistplay
Toronto, ON
- $120,000 to $165,000 CAD / year
- Full-time
Mistplay is seeking a strategic and hands-on Senior Manager of Organic Growth to help build and scale the organic acquisition engine for our fast-growing rewarded gaming platform. This…
Added 13 mins ago
RC
Server
Retirement Concepts
Nanaimo, BC
- $23.89 to $25.82 CAD / hour
- Temporary
…other with respect and dignity. We invest in the growth and development of our teams to actively participate in the creation of memories and moments that matter to our…
Added 13 mins ago
M
Senior Data Analyst I, Product
Mistplay
Toronto, ON
- Full-time
The Senior Data Analyst I, Product within Mistplay's Data department will play a crucial role in enhancing Mistplay's business performance through insightful analysis and driving analytics…
Added 13 mins ago
HT
Financial Manager - PLM (Product Line Mgmt)
Husky Technologies
Bolton, ON
- Full-time
Title: Financial Manager - PLM (Product Line Mgmt)
Added 14 mins ago
AG
Executive Administrative Assistant
Adelphi Group
Toronto, ON
- Full-time
Previous experience in an administrative role, supporting senior leadership
Added 14 mins ago
AG
Director, Communications Design
Adelphi Group
Toronto, ON
- Full-time
Cultivate and strengthen client, agency and media partner relationships at the senior level.
Added 14 mins ago
AG
Sr. Director, Connections Planning
Adelphi Group
Toronto, ON
- Full-time
The Senior Director, Connections Planning is an opportunity to oversee media strategy across a portfolio of leading brands on a tier 1 account, as well as leading and inspiring a team of…
Added 14 mins ago
AG
Head of Client Services & Toronto Office
Adelphi Group
Toronto, ON
- Full-time
This is a dual mandate: you are both the commercial and cultural leader of a ~35-person office, and the senior-most client partner ensuring the work we do drives real business results and…
Added 14 mins ago
AG
Account Director, Business Leadership - Automotive
Adelphi Group
Toronto, ON
- Full-time
…brand, digital and experiential. You will lead day-to-day and senior clients through Momentum’s strategic, creative and production process. This role reports into the VP, Business…
Added 14 mins ago
AG
Senior Vice President, Finance
Adelphi Group
Toronto, ON
- Full-time
Provide leadership, mentorship and counsel to the finance team, building a high-performing function with strong individual development.
Added 14 mins ago
AG
Senior Manager, Integrated Media
Adelphi Group
Toronto, ON
- Full-time
Our Toronto office is looking for a Senior Manager – Integrated Media, who is a seasoned public relations consultant responsible for providing strategic client counsel around media and…
Added 14 mins ago
AG
Campaign Manager, Programmatic
Adelphi Group
Toronto, ON
- Full-time
The Campaign Manager, Programmatic is responsible for responsible for campaign set up, tagging and optimization. Their goal is to improve the quality and performance of our campaigns.
Added 14 mins ago
AG
Analyst, Data Science
Adelphi Group
Toronto, ON
- Full-time
We are looking for a Data Science Analyst to join our growing data science practice. In this role, you will support the development and delivery of quantitative models and analyses across a…
Added 14 mins ago
AG
Senior Analyst, Data Science
Adelphi Group
Toronto, ON
- Full-time
We are looking for a Senior Analyst, Data Science to join our growing data science practice. In this role, you will lead the development and delivery of quantitative models and analyses…
Added 14 mins ago
AG
Sr Campaign Manager, Programmatic
Adelphi Group
Toronto, ON
- Full-time
The Senior Campaign Manager, Programmatic is responsible for responsible for campaign set up, tagging and optimization. Their goal is to improve the quality and performance of our campaigns.
Added 14 mins ago
AG
Senior Financial Analyst
Adelphi Group
Toronto, ON
- Full-time
Review and communicate financial results with senior account and client leads
Added 14 mins ago
AG
Strategist
Adelphi Group
Calgary, AB
- Full-time
Reporting directly to a senior member of the Strategy team, you’ll play a critical role supporting the strategic direction and ongoing delivery of work across multiple business units and…
Added 14 mins ago
AG
Senior Financial Planning & Analysis Analyst
Adelphi Group
Toronto, ON
- Full-time
The role of Senior Financial Planning & Analysis Analyst handles the planning and monthly financial management process for one Omnicom Media agency. The role is responsible for identifying,…
Added 14 mins ago
AG
Account Director, Earned Media Strategy
Adelphi Group
Toronto, ON
- Full-time
Serve as a trusted advisor and senior partner to client leaders and executive teams, providing high-level strategic counsel on brand reputation, media landscapes, crisis communications,…
Added 14 mins ago
AG
Account Director, Client Experience
Adelphi Group
Toronto, ON
- Full-time
Partner with senior counselors in the development of communication strategies.
Added 14 mins ago
AG
Project Manager
Adelphi Group
Toronto, ON
- Full-time
MRM//McCann is seeking a Project Manager. This role requires the ability to work independently, manage client and partner relationships, as well as taking direction from other team members…
Added 14 mins ago
AG
Senior Media Planner
Adelphi Group
Toronto, ON
- Full-time
The role of a Senior Media Planner is to manage our media planning product through preparing and presenting media plans, proposals, and analysis. This role requires you to work as part of…
Added 14 mins ago
AG
Senior Campaign Manager, Social
Adelphi Group
Toronto, ON
- Full-time
The role of the Senior Campaign Manager, Social is responsible for the overall account performance and execution. Their goal is to provide best in class expertise and recommendations that…

Visa

Senior Data Scientist

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 2, 2026

Original job description

About Us
Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters – to you, to your community, and to the world. Progress starts with you.

Job Description

The Sr. Data Scientist is responsible for designing and deploying AI-powered tools and agent systems that combine LLMs and custom ML models into end-to-end solutions that support business decision-making. Beyond model development, the role involves managing recurring data processes, building predictive and forecasting models, and contributing to data infrastructure modernization.

The position requires collaborating with cross-functional teams, translating model outputs into actionable recommendations, and communicating complex concepts to diverse audiences.

Key Responsibilities:

Agentic Development: Design AI agent systems that automate analytical workflows, including data retrieval, impact analysis, and proactive recommendation generation.
Multi-Model Architecture: Decide how to combine LLMs, traditional ML models, and rule-based logic into reliable, end-to-end agent workflows, and build the orchestration layer that ties them together.
Prototyping to Production: Take agent prototypes from proof-of-concept through iteration to production-grade systems with proper documentation, testing, CI/CD, and deployment ownership.
Predictive Modeling & Forecasting: Build and maintain forecasting models and other predictive tools that feed into agent systems or support business decisions directly.
Data ETL: Monitor and maintain recurring data processes, ensuring pipelines run on time and data quality stays high.
Data Infrastructure: Contribute to modernizing the data stack by migrating pipelines, expanding data coverage, and supporting cloud migration efforts.
Collaboration & Communication: Work with teammates across regions, product, and engineering, translating model and agent outputs into clear recommendations for senior business stakeholders.

Visa requires at least 3 days in office, expectations of these days will be confirmed by your Hiring Manager.

Qualifications

Basic Qualifications:

5 or more years of relevant work experience with a Bachelor's Degree or at least 2 years of work experience with an Advanced degree (e.g., Masters, MBA, JD, MD) or 0 years of work experience with a PhD.
Experience building and deploying machine learning models to production, focusing on modular, scalable, and maintainable models.
Hands-on experience with LLMs or generative AI, with demonstrated interest or experience in building agentic or multi-model systems.
Comfortable building data pipelines and working with large-scale data using tools like Spark, Airflow, SQL, or Python.
Experience managing data science or ML projects from scoping through delivery.
Able to communicate technical work clearly to non-technical audiences.

Preferred Qualifications:

6 or more years of work experience with a Bachelor's Degree or 4 or more years of relevant experience with an Advanced Degree (e.g., Masters, MBA, JD, MD) or up to 3 years of relevant experience with a PhD.
Experience building AI agents or multi-model orchestration systems using SDKs/frameworks such as LangChain, Claude Agent SDK, OpenAI Agents SDK, or similar.
Experience with predictive modeling and time-series forecasting.
Experience with productionalizing agentic applications.
Hands-on experience with cloud platforms (AWS, GCP, or Azure).
Exposure to financial services or the payments industry is a plus.
Experience working across geographies and time zones in a global organization.

Visa is an EEO Employer

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

Visa welcome and encourages application from persons with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

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More about this job

Responsibilities

The Senior Data Scientist will design and deploy AI-powered agent systems that integrate LLMs and custom ML models into end-to-end business solutions. The role also involves managing recurring data processes, building predictive models, and contributing to the modernization of data infrastructure.

Requirements

Candidates must have at least 5 years of relevant experience with a Bachelor's degree, or equivalent experience with an advanced degree. Proficiency in building and deploying machine learning models, working with large-scale data, and experience with generative AI or LLMs is required.

Skills

Data Science
Machine Learning
LLMs
Generative AI
AI Agents
Python
SQL
Spark
Airflow
Predictive Modeling
Time-series Forecasting
CI/CD
Cloud Platforms
Data Infrastructure
Data Pipelines
Multi-model Orchestration

Visa sponsorship

Not detected in the job text

Keywords

Data Science
Machine Learning
LLMs
Generative AI
AI Agents
Python
SQL
Spark
Airflow
Predictive Modeling
Time-series Forecasting
CI/CD
Cloud Platforms
AWS
GCP
Azure
LangChain
Data Infrastructure
ETL
Payments Industry
Financial Services
Orchestration
Data Pipelines
Model Deployment
Prototyping
Business Intelligence
Cross-functional Collaboration
Scalable Systems
Data Quality
Cloud Migration

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