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Added 15 mins ago
HT
Designer, Development (Service)
Husky Technologies
Bolton, ON
- Full-time
…problem solving process, the team member will analyze service data, identify/investigate potential root causes, verify true root causes, and develop permanent corrective…
Added 15 mins ago
HT
Mechanical Designer (Fluidpower)
Husky Technologies
Bolton, ON
- Full-time
Cross discipline interaction and communication including cross discipline inputs – Analysis, Electrical, Software, Mechanical, Metallurgy, Manufacturing, Validation/Test
Added 15 mins ago
HT
IT Internal Auditor
Husky Technologies
Bolton, ON
- Full-time
…will play a key role within the Internal Audit Department to test the effectiveness of Internal Controls and Financial Processes to support the successful execution of our internal audit…
Added 16 mins ago
C
Optimization & Process Engineering Analyst Co-op (16 Month Term)
CIBC
Toronto, ON
- Full-time
…collaborate in a team setting and focus on activities such as data collection, research, and analysis to assist in the design, testing, and implementation of organizational and process…
Added 16 mins ago
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System Admin - On-prem & Cloud (AWS & Azure)
BMO
Toronto, ON · SCC
- Full-time
OS Management: Configure, patch, harden, and maintain Linux (RedHat) and Windows Server environments.
Added 16 mins ago
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Vice President, Commodities Development
BMO
Toronto, ON · FCP
- Full-time
Own the end-to-end Commodities trading technology platforms including electronic execution and RFQ workflows, Order Management Systems (OMS), Trade Capture, lifecycle management and…
Added 16 mins ago
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Development Manager
BMO
Toronto, ON · FCP
- Full-time
Applies development expertise to front and back-end systems coding combined with project management experience with systems administration skills. Designs the strategy for continuous…
Added 16 mins ago
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Senior Technical Lead
BMO
Toronto, ON · FCP
- Full-time
Provide leadership and expertise for production support activities, incident management, root-cause analysis, and problem resolution.
Added 16 mins ago
B
Development Manager
BMO
Toronto, ON · FCP
- Full-time
Applies development expertise to front and back-end systems coding combined with project management experience with systems administration skills. Designs the strategy for continuous…
Added 16 mins ago
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Fixed Income Trading Analyst
BMO
Toronto, ON · FCP
- Full-time
Strong knowledge of all aspects of broker/dealer Fixed Income trading – pricing/Risk, RFQ/position/inventory management, clearing/settlements, regulatory
Added 16 mins ago
IR
Social Media Specialist (GTA)
Islamic Relief Canada
Burlington, ON · Ontario
- Full-time
…activities across the GTA. The Specialist also contributes to data-informed content planning and ensures a consistent, high-quality, and brand-aligned presence across all our social media…
Added 16 mins ago
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Culinary Specialist 12-18 Month Contract
Sysco
Vancouver, BC · Sysco Vancouver
- Full-time
Coordinate with Director of Business Resources, leveraging data to identify top opportunities for business reviews.
Added 31 mins ago
VC
Senior Functional Analyst, Business Systems & Integration
Vancouver Coastal Health
Vancouver, BC
- $46.39 to $66.68 CAD / hour
- Temporary
…objectives. Works with users to troubleshoot system problems, test system solutions, establish clear lines of communication and ensure clear visibility to critical functional issues.…
Added 31 mins ago
GD
Co-op Winter 2027 - Systems Integration, Verification, and Validation - 8-12 months
General Dynamics Missions System International
Ottawa, ON
- Internship
…hands-on experience with system testing, requirements analysis, test automation, and process improvement activities. Students gain exposure to mission-critical systems used in land…
Added 31 mins ago
GD
Co-op Winter 2027 – System of Systems Integration, Verification and Validation – 4-8 months
General Dynamics Missions System International
Ottawa, ON
- Internship
…hands-on experience with system testing, requirements analysis, test automation, and process improvement activities. Students gain exposure to mission-critical systems used in land…
Added 1 hour ago
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Operations Health Technician (Occupational Health)
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London, ON
- Full-time
Ability to assist in the management of a team of professional staff effectively, combining empathy and support for individuals with strong task and performance focus.
Added 1 hour ago
Senior Consultant - Non-Financial Risk and Controls (French bilingual)
EY
Montreal, QC
…that help Financial Services Organizations enhance their risk management, internal controls and internal audit functions. As a Senior Consultant, you will work within the NFR and Controls…
Added 1 hour ago
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Senior Project Manager
Virtusa
Toronto, ON
- Full-time
Metadata Management Data Lineage Expertise in mapping data flows from source to consumption maintaining data catalogs and tracking technicaloperational metadata
Added 2 hours ago
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Production Manager - Paper Bag Manufacturing
Gather Packaging
Toronto, ON · North York, ON
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How can Lean manufacturing, automation, data and artificial intelligence improve production?
Added 2 hours ago
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Architect
Virtusa
Toronto, ON
- Full-time
Coordinate UAT planning, test data preparation, environment readiness, and execution activities.
Added 2 hours ago
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UAT Lead
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Toronto, ON
- Full-time
Coordinate UAT planning test data preparation environment readiness and execution activities
Added 2 hours ago
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Member of Technical Staff
Nutanix
Vancouver, BC
- $103,000 to $155,000 CAD / year
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Collaborate closely with globally located product management and backend development teams to deliver high-quality products in a fast-paced environment.
Added 2 hours ago
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Senior Advisor, Operational Risk and Resiliency - Express Scripts Canada
Express Scripts Canada
Mississauga, ON
- Full-time
Operational Risk Management is a component of the IT Project Management department responsible for risk identification and mitigation across enterprise operational and resiliency…
Added 2 hours ago
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Architect
Virtusa
Toronto, ON
- Full-time
Metadata Management Data Lineage Expertise in mapping data flows from source to consumption maintaining data catalogs and tracking technicaloperational metadata
Added 2 hours ago
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RQ11718 – Software Developer – Intermediate
S M Software Solutions Inc
Toronto, ON
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Upshop

Data Scientist

Mississauga, ON, Canada

$120,000 - 140,000 CAD

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Job details

Pay: $120,000 - 140,000 CAD
Posting language: English
Posted: Oct 9, 2026

Original job description

Position Overview

We are seeking an engineering-focused Data Scientist to build, operationalize, and maintain production-grade retail forecasting and optimization models. In this role, model development goes hand-in-hand with operational reliability: success is measured by accurate forecasts and stable, low-latency, deterministic pipelines running natively on the Databricks Lakehouse.

You will bridge the gap between applied data science and machine learning engineering. Working in close partnership with Product and Data Engineering, you will own the operational lifecycle of item-store level demand forecasts and downstream replenishment/optimization engines - from distributed feature pipelines to automated Databricks workflows, model tracking, and runtime monitoring.

Key Responsibilities

Production Forecasting & Optimization: Develop, calibrate, and tune time-series forecasting engines and downstream supply chain/inventory optimization logic using tree-based ensembles (LightGBM, CatBoost) and distributed Python/PySpark.
Databricks-Native MLOps: Build, schedule, and maintain automated training and batch inference pipelines using Databricks Workflows and Jobs. Leverage MLflow for robust experiment tracking, artifact logging, and model registry management.
Cross-Functional Partnership:
- With Product: Translate business requirements into technical specs, define operational SLAs, and provide technical feasibility assessments for new forecasting features.
- With Data Engineering: Establish strict data contracts, define schema validations, and optimize data ingestion/consumption patterns from upstream Delta tables.
Pipeline Quality & Stability: Treat ML pipelines as critical production software. Implement pre-inference data validation gates (e.g., schema checks, missingness thresholds, null checks) and automated alerting to prevent corrupted data from reaching scoring jobs.
Model & Pipeline Observability: Track pipeline health, monitor runtime performance, and detect feature drift, target drift, and forecast degradation across high-cardinality retail catalogs.
Software Excellence: Write modular, maintainable, and testable code. Champion version control best practices, unit/integration testing with pytest, and automated CI/CD checks within Git.
Spec-Driven Execution: Embrace a Spec-Driven Development (SDD) mindset, leveraging modern agentic AI development workflows (e.g., Cursor, Claude Code) to move rapidly from research to reliable production code.

Required Technical Skills

Tree-Based Ensembles: Hands-on experience developing, tuning, and deploying gradient boosted decision trees - specifically LightGBM and CatBoost - on high-cardinality, tabular, and time-series datasets.
Time-Series Retail Forecasting: Deep practical understanding of demand forecasting challenges: trend, seasonality, calendar events, promotional uplifts, stockouts, and intermittent/sparse demand patterns.
Databricks Platform: Proven experience building within the Databricks ecosystem, specifically authoring and managing multi-task Databricks Workflows/Jobs, navigating Delta Lake, and using MLflow across the model lifecycle.
Data Manipulation & PySpark: Strong proficiency in Python and PySpark for distributed data processing, feature engineering, and memory-conscious transformations across massive retail datasets.
Software Engineering Fundamentals: Solid understanding of clean code principles, modular package design, virtual environments, automated testing (pytest), and standard Git workflows (pull requests, branching, code reviews).

Preferred Qualifications

Optimization & Supply Chain: Familiarity with inventory optimization mechanics (safety stock calculation, reorder point modeling, lead time variability, allocation constraints).
Databricks Advanced Features: Experience leveraging Delta Live Tables (DLT), Unity Catalog for data and model governance, or Photon compute engine.
Explainable AI (XAI): Experience implementing TreeSHAP or similar interpretability methods within production batch scoring jobs.
Continuous Integration: Experience setting up or integrating with CI/CD pipelines (e.g., GitHub Actions) to automate testing and deployment into Databricks workspaces.

Cultural Alignment & Values

Production Mindset: You believe a model is only finished when it is tested, automated, monitored, and running reliably in production.
Ownership & Root-Cause Thinking: When a pipeline fails or a metric degrades, you dig into the logs, identify the root cause, write a regression test, and implement a durable fix.
Collaborative Communicator: You easily speak the language of business trade-offs with Product managers and system architecture with Data Engineers.

The estimated pay ranges for this role are as follows:

$120,000 - 140,000 CAD

The successful candidate’s starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location.

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More about this job

Responsibilities

Develop, operationalize, and maintain production-grade retail forecasting and optimization models using Databricks. Collaborate with product and data engineering teams to manage the full lifecycle of demand forecasting pipelines and ensure system reliability.

Requirements

Requires hands-on experience with tree-based ensembles, time-series forecasting, and distributed data processing using PySpark. Candidates must demonstrate strong software engineering fundamentals and proficiency within the Databricks ecosystem.

Skills

Data Science
Python
PySpark
Databricks
Machine Learning Engineering
Time-series Forecasting
LightGBM
CatBoost
MLflow
Delta Lake
Supply Chain Optimization
Git
Pytest
CI/CD
Feature Engineering
Data Pipelines

Visa sponsorship

Not detected in the job text

Keywords

Data Scientist
Retail Forecasting
Optimization
Databricks Lakehouse
MLOps
Time-series
LightGBM
CatBoost
Python
PySpark
MLflow
Delta Lake
Supply Chain
Inventory Optimization
Feature Drift
CI/CD
Git
Pytest
Spec-Driven Development
Data Engineering
Production-grade
Distributed Systems
Data Contracts
Schema Validation
Observability
TreeSHAP
Unity Catalog
Photon
Replenishment
High-cardinality

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