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Added 16 mins ago
HI319: Britain's 18th Century (Winter 2027)
Wilfrid Laurier University
Waterloo, ON
…Laurier Faculty Association (WLUFA) is the exclusive bargaining agent. All applicants are assessed using both the “Appendix H: Assessment of CTF Candidates under 13.6.1” in the collective…
Added 1 hour ago
O
Analyste d'affaires
Onepoint
Montreal, QC
- Full-time
Added 1 hour ago
W
Analyste d'affaires
Wepoint
Montreal, QC
- Full-time
Added 1 hour ago
P
Sustainability Assurance Senior Associate (Bilingual FR/ENG)
PwC
Montreal, QC
- Full-time
Added 1 hour ago
AI
Software Architect
Arkion Identity Systems
Toronto, ON · Greater Toronto Area, Canada
- Full-time
What it means to govern an AI agent's identity: provisioning, scoping, revoking. Topic explainer.
Added 1 hour ago
GS
Lead AI Engineer/QA
GeorgiaTEK Systems Inc.
Quebec, QC
- Contract
AI agent testing QE working on multiple projects implementing AI-based solutions
Added 1 hour ago
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Software Developer - CRM - Senior (Lead exp)
Bevertec
Toronto, ON
- Contract
Job Role: Software Developer - CRM - Senior (Lead exp)
Added 1 hour ago
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Full Stack Engineer
mthree
Montreal, QC
- Full-time
A tier-one global investment bank is hiring a Full Stack Developer (Java and React), with 2–5 years’ experience, to join its Custom Baskets team.
Added 1 hour ago
Salesforce Technical Architect - Financial Services Cloud, Marketing Cloud & Data360 - Manager
EY
Toronto, ON · Montreal, QC
Working knowledge of Agentforce and Prompt Builder: agent instructions, topics/actions, knowledge retrieval, testing, escalation patterns.
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Scrum Master-Kanban/Banking
BeachHead
Toronto, ON
- $78.78 to $94.53 CAD / hour
- Contract
Act as a change agent to adapt processes for increased team productivity
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Lead AI Engineer/QA
GeorgiaTEK Systems Inc.
Halifax, NS
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AI agent testing QE working on multiple projects implementing AI-based solutions
Added 1 hour ago
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Technology Strategy & Transformation, Senior Associate
PwC
Vancouver, BC · Victoria, BC
- Full-time
Added 2 hours ago
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Senior Software Developer, AI Solutions
System Soft Technologies
Quebec, QC
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Contributed to MCP servers/tools, eval frameworks, or agent-orchestration frameworks.
Added 2 hours ago
VT
Java ReactJs Developer
Volgo Technologies
Montreal, QC
- Full-time
Experience with AI coding assistants like copilot, using Agent mode, Skills, etc for
Added 2 hours ago
Legal Product Builder
Carta
Toronto, ON
…development process, helping turn complex legal work into scalable, agent driven…
Added 3 hours ago
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Intermediate Software Engineer
AltaML
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
…libraries or AltaForge - supporting the AltaForge Clients and Same-Agent-Across-Clients north…
Added 4 hours ago
MP
Luxury Property Consultant (Dubai Based)
McCone Properties
Montreal, QC
- Full-time
The average agent here earned US$112,000 last year, tax free; US$2.9 million is our best year, not the usual one. There is no salary, so arrive with around six months of savings while you…
Added 4 hours ago
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Founding CTO
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- Full-time
Kouvre is the AI agent for restaurants. Independent owners text it like an employee and it runs the business for them: launching promos, fixing menus, changing prices, replying to reviews,…
Added 7 hours ago
SH
Applied AI Software Engineer
SE Health
Markham, ON
- Full-time
…specification-driven workflows, autonomous iteration loops, repository-level agent instruction files, custom commands, skills and hooks, subagent orchestration, Model Context Protocol…
Added 9 hours ago
Software Development Engineer II, Advertiser Growth Engine
Amazon
Toronto, ON
- Build an agentic platform that powers all Ads agent to communicate with advertisers in 20+ languages.
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Loss Prevention Store Security Agent
TJX Canada – Winners, Marshalls, HomeSense
Halifax, NS
- $37,590 to $52,626 CAD / year
- Full-time
We're seeking a Loss Prevention Store Security Agent to help create a safe, secure, and welcoming environment in our stores. In this impactful role, you’ll be instrumental in theft…
Added 9 hours ago
TC
Loss Prevention Store Security Agent
TJX Canada – Winners, Marshalls, HomeSense
London, ON
- $37,590 to $52,626 CAD / year
- Full-time
We're seeking a Loss Prevention Store Security Agent to help create a safe, secure, and welcoming environment in our stores. In this impactful role, you’ll be instrumental in theft…
Added 10 hours ago
S
Asset Protection Partner
sephora.com
Toronto, ON
- $25 to $30 CAD / hour
- Full-time
Testify in court on behalf of the company, in any case, criminal or civil, to which the Agent is summoned.
Added 10 hours ago
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Senior Manager, Strategic Initiatives- Corporate Strategy
Walmart
Mississauga, ON
- Full-time
…critical initiative to ensure successful delivery. This role is an agent of the Office of the President, and as such, must uphold a level of strong internal influence to ensure optimal…
Added 11 hours ago
SC
Senior Developer
SAP Careers
Montreal, QC
- $108,100 to $222,800 CAD / year
- Full-time
We are looking for a dynamic and motivated Senior Software Developer who embrace AI-assisted software development as part of their everyday engineering practice to join our engineering…

Visa

Senior Data Scientist

Toronto, ON, Canada

Full-time

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Applications open in a new tab.

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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