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I am a Senior Data Scientist with over 7 years of experience connecting technology and business to unlock value from data, particularly within financial institutions. I have led high-impact projects and managed advanced analytics teams responsible for initiatives yielding more than C$1.3 million annually. I am proficient across the data science life cycle, from ETL to MLOps, leveraging Python, SQL, cloud platforms like AWS, Azure, and Databricks, and machine learning to deliver optimized forecasting, fraud detection, and enhanced customer experience. I am committed to promoting data-driven solutions, fostering cross-functional collaboration, and partnering with stakeholders to create innovative analytics solutions. My passion lies in building efficient teams and scalable data pipelines that improve operational efficiency and drive business success.…I am a Senior Data Scientist with over 7 years of experience connecting technology and business to unlock value from data, particularly within financial institutions. I have led high-impact projects and managed advanced analytics teams responsible for initiatives yielding more than C$1.3 million annually. I am proficient across the data science life cycle, from ETL to MLOps, leveraging Python, SQL, cloud platforms like AWS, Azure, and Databricks, and machine learning to deliver optimized forecasting, fraud detection, and enhanced customer experience. I am committed to promoting data-driven solutions, fostering cross-functional collaboration, and partnering with stakeholders to create innovative analytics solutions. My passion lies in building efficient teams and scalable data pipelines that improve operational efficiency and drive business success.

John Mattox

Data Scientist, Project Manager, Developer, +2

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I am a Senior Data Scientist with over 7 years of experience connecting technology and business to unlock value from data, particularly within financial institutions. I have led high-impact projects and managed advanced analytics teams responsible for initiatives yielding more than C$1.3 million annually. I am proficient across the data science life cycle, from ETL to MLOps, leveraging Python, SQL, cloud platforms like AWS, Azure, and Databricks, and machine learning to deliver optimized forecasting, fraud detection, and enhanced customer experience. I am committed to promoting data-driven solutions, fostering cross-functional collaboration, and partnering with stakeholders to create innovative analytics solutions. My passion lies in building efficient teams and scalable data pipelines that improve operational efficiency and drive business success.…I am a Senior Data Scientist with over 7 years of experience connecting technology and business to unlock value from data, particularly within financial institutions. I have led high-impact projects and managed advanced analytics teams responsible for initiatives yielding more than C$1.3 million annually. I am proficient across the data science life cycle, from ETL to MLOps, leveraging Python, SQL, cloud platforms like AWS, Azure, and Databricks, and machine learning to deliver optimized forecasting, fraud detection, and enhanced customer experience. I am committed to promoting data-driven solutions, fostering cross-functional collaboration, and partnering with stakeholders to create innovative analytics solutions. My passion lies in building efficient teams and scalable data pipelines that improve operational efficiency and drive business success.

Available to hire

I am a Senior Data Scientist with over 7 years of experience connecting technology and business to unlock value from data, particularly within financial institutions. I have led high-impact projects and managed advanced analytics teams responsible for initiatives yielding more than C$1.3 million annually. I am proficient across the data science life cycle, from ETL to MLOps, leveraging Python, SQL, cloud platforms like AWS, Azure, and Databricks, and machine learning to deliver optimized forecasting, fraud detection, and enhanced customer experience.

I am committed to promoting data-driven solutions, fostering cross-functional collaboration, and partnering with stakeholders to create innovative analytics solutions. My passion lies in building efficient teams and scalable data pipelines that improve operational efficiency and drive business success.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

French

Beginner

Spanish; Castilian

Beginner

Work Experience

Data Analyst at Conestoga College

December 1, 2024 - August 26, 2025

Designed and implemented the department's first star schema, automating ETL from fragmented Excel data into a queryable database. Developed Power BI dashboards quantifying student application journeys and identifying bottlenecks, enabling real-time, data-driven management decisions.

Data Science Manager / Senior Data Scientist at Cielo

June 1, 2023 - August 26, 2025

Built and led a 5-person Advanced Analytics team focused on pricing strategies, directly contributing to initiatives demonstrating a gain of C$14 million per quarter. Engineered and automated critical data pipelines, reducing a process from one week and 3 analysts to just 3 hours in the cloud with no manual work needed. Developed and fine-tuned ML and statistical models optimizing pricing strategies for around 1 million active clients monthly, improving accuracy and revenue generation.

Data Scientist / Data Analyst at XP-Inc

June 1, 2022 - August 26, 2025

Partnered with UX designers to develop a data-driven clustering approach for approximately 100K customers, creating actionable personas for product and service customization. Collaborated with MLOps teams to build an automated model deployment pipeline, reducing deployment time from days to hours. Automated and scaled manual Excel-based reporting into robust SQL data pipelines, improving data quality and consistency for enhanced data governance. Developed a 'quant' analysis tool for 500+ financial advisors, enabling dynamic investment portfolio analysis and rapid return estimation for over 100K clients monthly.

Data Scientist at Itaú-Unibanco

November 1, 2020 - August 26, 2025

Developed and deployed ML solutions for diverse projects including fraud detection, forecasting, client segmentation, optimizing cash logistics saving over C$250k daily, and reducing loan default by 20%. Applied advanced analytics to optimize national cash flow in collaboration with the Brazilian Central Bank. Predicted client financial behavior with 88% accuracy. Engineered an MLOps platform implementation via Airflow, standardizing model deployment and centralizing code for enhanced team agility.