Senior Data Scientist
4 weeks ago
Job Title: Senior Data Scientist Location: Toronto Department: AI & Data Engineering Type: Full-time Reports to: Head of Applied AI & Data Engineering Who is EnStream EnStream is a leader in secure digital identity and mobile data intelligence, working to advance the future of digital trust in Canada. We build innovative data-driven models that enhance the integrity, reliability, and safety of digital identity ecosystems. Our latest initiative leverages advanced data science , machine learning , and deep learning to further grow and sustain digital trust across Canada. Our mission is to empower frictionless trust in every interaction. EnStream is dedicated to increasing trust and convenience for Canadians using real-life, verified identities and network data held by trusted telco networks. At EnStream, every team member plays a critical role in shaping our strategy and delivering meaningful impact across industries. About the Role We are seeking a Senior Data Scientist to join EnStream’s Data & AI team and help design and build models that measure behavioural, relational and contextual integrity across the EnStream ecosystem. You will apply your expertise in data wrangling, feature engineering, machine learning, and deep learning —with a strong preference for experience in graph-based and semi-supervised learning —to develop models that are explainable, scalable, and production-ready . Additionally, you will conduct ad-hoc statistical analysis to support production operations and future initiatives. What You'll Do Research, design, and prototype Machine Learning/Deep Learning models for identity trust and integrity scoring Prepare, clean, and engineer features from large, complex telecommunications and fraud datasets Develop and evaluate unsupervised and semi-supervised learning models (including graph-based techniques) Collaborate with data and application engineering teams to operationalize data engineer pipeline and AI/ML models Support ad-hoc statistical analysis, data visualization , and insight generation for exploratory studies and impact assessments Contribute to the design of model monitoring , explainability, and drift detection frameworks Participate in peer reviews, documentation, and knowledge sharing within the Data & AI team What You Bring Must-Have Skills & Experience Bachelor’s or higher degree in Computer Science, Data Science, Engineering, Mathematics , or related field Domain knowledge in fraud detection 5+ years of hands-on experience in Data Science, Machine Learning, Deep Learning Proficiency in Python (e.g. numpy, pandas, PySpark, scikit-learn, PyTorch/TensorFlow, matplotlib, seaborn), SQL, hyperparameter optimization framework (e.g., Ray Tune, Optuna, Hyperopt), and graph ML frameworks (e.g., PyTorch Geometric, NetworkX) What Sets You Apart Domain knowledge in digital identity and telecommunications Experience with advanced Unsupervised and Semi-Supervised Learning techniques Experience in Data Engineering or ML Engineering Experience with AWS S3, SageMaker, and lakehouse architecture Experience implementing model monitoring, data/concept drift detection and explainability frameworks (e.g. SHAP, LIME) Why Join Us? Contribute to a national-scale initiative defining the future of digital trust in Canada Work on cutting-edge graph-based semi-supervised learning applications using real-world identity data Collaborate with a highly skilled, cross-functional team
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Senior Data Scientist
4 weeks ago
Toronto, ON, Canada EnStream LP Full timeJob Title: Senior Data Scientist Location: Toronto Department: AI & Data Engineering Type: Full-time Reports to: Head of Applied AI & Data Engineering Who is EnStream EnStream is a leader in secure digital identity and mobile data intelligence, working to advance the future of digital trust in Canada. We build innovative data-driven models that enhance the...
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Senior Data Scientist
4 weeks ago
Toronto, Canada Johnson & Johnson Full timeAt Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across...
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Senior Data Scientist
4 weeks ago
Toronto, Canada Johnson & Johnson Full timeAt Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across...
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Data Scientist
3 weeks ago
Toronto, Canada Procom Full timeInformation Technology recruitment | Talent Acquisition | Technology Recruiter specialized in placing candidates with contract and full time… On behalf of our Banking client, Procom is searching for a Data Scientist, Python for a 12‑month role. This position is a hybrid position with 4 days onsite at our client’s Toronto, Ontario office. Data...
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Data Scientist
3 weeks ago
Toronto, Canada Procom Full timeInformation Technology recruitment | Talent Acquisition | Technology Recruiter specialized in placing candidates with contract and full time… On behalf of our Banking client, Procom is searching for a Data Scientist, Python for a 12‑month role. This position is a hybrid position with 4 days onsite at our client’s Toronto, Ontario office. Data...
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Senior Data Scientist
2 weeks ago
Toronto, Ontario, Canada Johnson & Johnson Full timeAt Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to...
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Senior Data Scientist
4 weeks ago
Toronto, Canada Massive Insights Full timeSenior Data Scientist Massive Insights Inc. is at the forefront of data-driven decision-making and is seeking a talented Senior Data Scientist to join our innovative team. In this role, you will leverage your deep understanding of data science and advanced analytics to drive insights for our clients, helping them turn complex data into actionable strategies....
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Senior Data Scientist
4 weeks ago
Toronto, Canada Massive Insights Full timeSenior Data Scientist Massive Insights Inc. is at the forefront of data-driven decision-making and is seeking a talented Senior Data Scientist to join our innovative team. In this role, you will leverage your deep understanding of data science and advanced analytics to drive insights for our clients, helping them turn complex data into actionable strategies....
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Senior Data Scientist
1 week ago
Toronto, Canada Tubi Full timeSenior Data Scientist – Tubi Join to apply for the Senior Data Scientist role at Tubi . About Tubi: Boldly built for every fandom, Tubi is a free streaming service that entertains over 100 million monthly active users. Tubi offers the world’s largest collection of Hollywood movies and TV shows, thousands of creator‑led stories and hundreds of Tubi...
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Senior Data Scientist
2 weeks ago
Toronto, Canada Tubi Full timeSenior Data Scientist – Tubi Join to apply for the Senior Data Scientist role at Tubi. About Tubi: Boldly built for every fandom, Tubi is a free streaming service that entertains over 100 million monthly active users. Tubi offers the world’s largest collection of Hollywood movies and TV shows, thousands of creator‑led stories and hundreds of Tubi...
