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Senior Python Data Science Jobs in Toronto, ON (NOW HIRING)

... data, and quality standards Required Qualifications Bachelor's degree in Computer Science ... Python and object-oriented programming Experience with at least one major Python web framework ...

The Senior Manager, Data Science is responsible for the design and validation of advanced analytics ... Python, R). * Advanced analytical and critical thinking skills. * Strong leadership and people ...

... data, and quality standards Required Qualifications Bachelor's degree in Computer Science ... Python and object-oriented programming Experience with at least one major Python web framework ...

Lead cross-functional collaboration with data scientists, engineers, IT partners, and business ... Proficient in Python, PySpark, SQL, Power BI, and Databricks (or similar platforms) for data ...

Advanced hands-on experience with the Python data science stack. * Owning the full Data Science life cycle from ideation to production. * Strong understanding of quantitative approaches, their ...

Senior Data Scientist, ASR

Markham, ON ยท On-site

CA$77K - CA$117K/yr

Expertise in Python data science libraries like Pandas, matplotlib, NumPy, and Scikit-Learn. * Proficiency in programming languages such as Python, R, or Scala. Experience with SQL and NoSQL ...

Senior Data Scientist, ASR

Toronto, ON ยท On-site

CA$77K - CA$117K/yr

Expertise in Python data science libraries like Pandas, matplotlib, NumPy, and Scikit-Learn. * Proficiency in programming languages such as Python, R, or Scala. Experience with SQL and NoSQL ...

Senior Data Scientist, ASR

Oakville, ON ยท On-site

CA$77K - CA$117K/yr

Expertise in Python data science libraries like Pandas, matplotlib, NumPy, and Scikit-Learn. * Proficiency in programming languages such as Python, R, or Scala. Experience with SQL and NoSQL ...

Developing and maintaining data solutions alongside a team of data scientists that enable the ... SQL, Python - Data orchestration and transformation: Airflow, dbt - Data storage and warehousing:

In this role, you will leverage your deep understanding of data science and advanced analytics to ... Proficiency in programming languages such as Python, R, or Scala, along with experience using data ...

This is a senior leadership role, responsible for defining the data science strategy, guiding ... Proficiency in Python, ML frameworks (Scikit-learn, PyTorch, TensorFlow), SQL, Spark, and Azure ML ...

Senior Associate, Data Science

Toronto, ON ยท On-site

CA$115K - CA$130K/yr

Your Impact We're currently seeking a Senior Associate, Data Science to join our rapidly growing ... Fluent in SQL and Python * Strong grasp of statistics * Experience with one or more of the ...

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Senior Python Data Science information

What is the difference between Senior Python Data Science vs Data Analyst?

AspectSenior Python Data ScienceData Analyst
Required SkillsPython, machine learning, statistical analysis, data modelingExcel, SQL, data visualization, basic statistics
Work EnvironmentData science teams, R&D, product developmentBusiness units, reporting, operational analysis
Industry UsageTech, finance, healthcare, e-commerceRetail, marketing, finance, healthcare

Senior Python Data Scientists focus on advanced analytics, machine learning, and building predictive models using Python, often working in R&D or product teams. Data Analysts primarily handle data reporting, visualization, and basic statistical analysis to support business decisions. While both roles require data handling skills, Senior Python Data Science roles demand deeper technical expertise and experience with complex algorithms.

What job categories do people searching Senior Python Data Science jobs in Toronto, ON look for? The top searched job categories for Senior Python Data Science jobs in Toronto, ON are:

Freelance Data Scientist, ad hoc

Klick Health

Toronto, ON โ€ข Remote

Full-time

Posted 5 days ago


Job description

Company Description

The Klick Groupโ€”comprising Klick Health (including Klick Katalyst and btwelve), Klick Media Group, Klick Applied Sciences (including Klick Labs), Klick Consulting, and Klick Venturesโ€”is an ecosystem dedicated to realizing the full potential of our people and clients in life sciences. Founded in 1997, we have offices in New York, Philadelphia, Saratoga Springs, Toronto, London, Sรฃo Paulo, and Singapore. Consistently named a Best Managed Company, Most Admired Corporate Culture, and Great Place to Work, Klick is committed to fostering a high-performance, people-first culture with creativity, collaboration, innovation, and impact across everything we do.

About our Consulting Craft
Our Consulting Craft partners with clients on complex business and transformation challenges. The team applies strategic rigor to real-world problems. They help organizations navigate change with clarity and confidence. Their work drives meaningful, long-term impact.

Job Description

As a Freelance Data Scientist, this role supports Klick Consulting by converting complex healthcare, commercial, and marketing data into clear narratives and practical recommendations for clients. The role partners with data scientists, strategists, consultants, and senior stakeholders to define business questions, select appropriate methods, execute analyses, and communicate findings. This freelance position is based in Ontario, is 100% remote, and does not require travel.

Employment type: freelance
Target hours:ย ad hoc, 20 hours per week, more if possible

What Youโ€™ll Do

  • Design data science approaches that balance client business goals with statistical, technical, and data constraints.
  • Python data analysis workflows using tools such as pandas, NumPy, matplotlib/plotly, scikit-learn, SQL, git, and GitHub.
  • Analyze healthcare, marketing, commercial, clinical, or utilization data using methods such as natural language processing and free-text analysis, clustering, geospatial analysis, descriptive statistics, and predictive modeling.
  • Translate technical findings into clear data stories, visualizations, and client-ready recommendations for cross-functional stakeholders.
  • Support and own experimental design, data analysis workstreams, and documentationย  across consulting engagements.
Qualifications

Required:

  • Undergraduate degree in a computational, scientific, or health-related field, e.g., statistics, mathematics, bioinformatics.
  • Demonstrated experience analyzing structured or unstructured data, including observable understanding of bias, error, confounding, power, and significance.
  • Hands-on experience using Python data analysis tools such as NumPy, pandas, matplotlib, or scikit-learn, plus SQL for data extraction or analysis.
  • Working familiarity with git, GitHub, and command-line workflows to document and collaborate on analysis scripts.
  • Experience translating technical analysis into written or verbal recommendations for cross-functional stakeholders.
  • Ability to independently scope, execute, and explain smaller analysis workstreams, while collaborating with data scientists,ย  consultants, and strategists on larger projects.
  • Practical experience using AI tools to accelerate technical work, including validation, maintainability, and reliability.
  • Comfortable working with ambiguous or evolving business questions, making assumptions explicit, and adapting to new context.

Desired:

  • 3+ years of professional experience in analytics, data science, or applied research outside a purely academic context.
  • Experience analyzing real-world data (RWD), e.g., healthcare administrative claims, EHR data, or clinical outcomes.
  • Familiarity with AWS, Google Cloud Platform, Microsoft Azure, or other cloud-based analytics environments.
  • Graduate degree in data science, statistics, bioinformatics, or a related quantitative field.
  • Experience applying advanced analytic methods and technologies to answer business or clinical questions, such as natural language processing, hierarchical Bayesian modeling, Markov chain Monte Carlo, and generative AI.

Additional Information

This posting is for a newly created role at Klick.

The base hourly rate for this position is between CAD $40/hour to $45/hour. The final amount offered will be determined based on several factors such as a candidate's work location, their unique skill set, education, and prior work experience.ย 

#LI-Remote #LI-ML1

Our Commitment to Inclusion
Klick is consciously creating a culture where everyone can thrive and grow in their careers. We believe that our best work comes from our diverse backgrounds, perspectives, and skills. We strongly encourage members of historically underrepresented communities to apply, including Black people, Indigenous peoples, and other people of color, people with disabilities, people from gender and sexually diverse communities and people with intersectional identities. We're also committed to developing an inclusive, barrier-free recruitment process and work environment. Should you require any accommodation, please contact us at careers@klick.com and we will work with you to meet your accessibility needs and ensure you have a positive experience.