Senior Data Scientist

Why Valtech? We’retheexperience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience.The opportunityAt Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries.We are proud of: The work we do and the innovation we drive Our values of share, care and dare A workplace culture that fosters creativity, diversity and autonomy Our borderless, global framework, which enables seamless collaboration For Québec-based positions, the position requires proficiency in English, as the role involves regular communication with clients and colleagues located outside of Québec.The role We are looking for a Senior Data Scientist to join a highly collaborative team focused on building and scaling innovative machine learning and AI-powered products. This role will work at the intersection of Data Science, Machine Learning, and Engineering to drive experimentation, optimize customer experiences, and develop next-generation AI solutions.The ideal candidate combines a strong quantitative foundation with deep expertise in machine learning, experimentation, and modern AI tooling. This individual will be comfortable operating in emerging product areas with limited direction, helping define both the technical approach and long-term business value.Role responsibilitiesLead the design, development, and deployment of machine learning solutions that drive business impact.Partner closely with Product, Engineering, and Data teams to identify opportunities and recommend data-driven solutions.Design and analyze experiments, including A/B tests, to evaluate product enhancements and business initiatives.Develop quantitative frameworks to assess new customer experiences and emerging product opportunities.Build predictive and optimization models that improve customer outcomes and business performance.Contribute to initiatives involving customer personalization, recommendation systems, and behavioral modeling.Drive innovation in computer vision, generative AI, and image-generation technologies.Improve and expand AI-powered visual experiences, identifying new use cases across the business.Evaluate, implement, and optimize state-of-the-art machine learning techniques and open-source AI frameworks. Collaborate with engineering teams to productionize models and create scalable AI systems. Operate independently on ambiguous problems while helping define technical strategy and best practices. Must have qualificationsTo be considered for this role, you must meet the following essential qualifications:Bachelor's, Master's, or PhD in Statistics, Mathematics, Computer Science, Physics, Engineering, or another quantitative discipline.5+ years of experience in Data Science, Machine Learning, or a related field.Deep expertise in machine learning, including model development, evaluation, and deployment.Strong programming skills in Python and experience building production-grade data science solutions.Experience designing and analyzing experiments, including A/B testing methodologies.Strong statistical modeling and hypothesis-testing skills.Experience partnering with software engineers to deploy and scale machine learning systems.Ability to independently drive projects from problem definition through implementation.Excellent communication skills and ability to translate complex findings into business recommendations.Technical SkillsPythonMachine LearningStatistical AnalysisExperimental Design / A/B TestingData ModelingMachine Learning ProductionizationNice to have qualifications Experience with Generative AI applications and large language model ecosystems.Experience with AI orchestration frameworks such as LangChain, LangGraph, or similar open-source technologies.Experience working with image generation, computer vision, or multimodal AI systems.Experience building AI-powered customer-facing products.SQL proficiency for data exploration and analysis.Experience working in fast-paced environments where experimentation and iteration are critical to success.Familiarity with recommendation systems, personalization, or customer lifecycle optimization.Technical SkillsSQLGenerative AILangChainLangGraphComputer VisionImage Generation ModelsLLM Orchestration FrameworksOpen-Source AI TechnologiesIf you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn.Commitment to reaching all kinds of peopleWe design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re