Senior Data Scientist – Transaction Monitoring

Rate: $90–$105/hr Inc.

Contract: 6 months

Location: Markham, ON – 3500 Steeles Avenue East

Work Model: Hybrid – 3 days onsite

Positions: 2

Start Date: Early October 2026

Role Overview

Seeking experienced Data Scientists to support the development and enhancement of transaction monitoring and advanced analytics solutions. The role is highly data-focused, requiring expert Python and SQL skills, statistical analysis and experience working with large, complex datasets.

Key Responsibilities

- Perform advanced data exploration and analysis across large-scale datasets.
- Develop analytical solutions using Python and SQL.
- Optimize complex SQL queries and automate analytical processes.
- Conduct data quality and validation activities across Oracle and Azure environments.
- Perform customer segmentation, threshold analysis and model performance monitoring.
- Apply statistical techniques and data mining methods to identify patterns and support business decisions.
- Analyze transaction monitoring data and identify opportunities to improve monitoring effectiveness.
- Perform quality control and validation of end-to-end analytical solutions.
- Support implementation of new and enhanced data-driven monitoring solutions.
- Maintain structured analytical documentation supporting audit, compliance and regulatory requirements.




- Present analytical findings and recommendations to business and technical stakeholders.

Must-Have Requirements
- 8+ years of relevant Data Science, Advanced Analytics or data-focused experience.
- Expert-level Python and SQL.
- Advanced SQL query optimization and debugging experience.
- Robust experience developing automation for data and analytical processes.
- Extensive experience exploring and analyzing large-scale datasets.
- Strong statistical analysis and data mining capabilities.
- Demonstrated experience delivering complex data-driven/data-centric projects.
- Strong analytical and problem-solving skills.
- Ability to work independently while collaborating effectively across large teams.

Nice to Have
- AML / Transaction Monitoring experience.
- Financial services experience.
- Oracle and Azure experience.
- SAS, Informatica or Tableau.
- Master's degree in Computer Science, Data Science, Statistics or a related quantitative discipline.

Additional Details
- Supporting transaction monitoring initiatives within a data science and analytics environment.
- Approximately 1 hour of meetings per day, with the majority of time focused on hands-on analytical work.
- Interview process: one in-person panel interview in Markham including technical testing.
- Potential for extension and/or conversion.

📌 Senior Data Scientist – Transaction Monitoring (Markham)
🏢 Infotek Consulting
📍 Markham