Sr Data Scientist

The Sr Data Scientist will be part of the design, training, and execution of machine learning models, working independently with little support from more experienced members of the team.

They also participate in curating datasets, cleaning and preparing data, measuring models' performance, as well as participating in all the different parts of the ML Pipeline, from data collection, to deployment. The main objective of this role is to develop well-designed AI solutions that could be used for recommended systems, classifiers, computer vision applications, virtual assistants, translation apps, chatbots, etc, while also sharing their knowledge with less experienced members and the internal AI community.

What are the main responsibilities of this role?

• Identify and develop AI-driven solutions tailored to client-specific business challenges, including both NLP and forecasting/optimization applications.
• Design, build, validate, and deploy robust predictive models.
• Perform Exploratory Data Analysis (EDA) to uncover insights and opportunities.
• Handle challenges in model development, such as bias identification, under-fitting, and overfitting.
• Optimize and fine-tune models to ensure efficiency, scalability, and performance.
• Implement rigorous testing strategies, including A/B testing, for continuous improvement of models.
• Monitor, debug, and maintain production-level machine learning models.
• Research and evaluate new tools, methodologies, and frameworks in AI and Data Science.
• Contribute to thought leadership through content creation, presentations, and mentorship of team members.

Which skills and experience do we envision for this role?

• 3+ years of experience in Data Science, Machine Learning, or related software development roles.
• Demonstrated capability in developing and implementing forecasting models and solving optimization problems.
• Solid technical proficiency with Python and familiarity with frameworks such as TensorFlow, PyTorch, and LangChain.
• Exposure to modern MLOps practices and platforms for efficient model deployment and monitoring.
• Excellent communication skills, with the ability to translate complex technical concepts into clear insights.
• Experience working within Agile environments and methodologies.
• Experience with AI development tools such as Cursor, GitHub Copilot, or Claude
• Advanced English skills, both written and spoken.

Join our team and enjoy:

• Opportunities to organize cross-functional initiatives and receive 360 Feedback to improve your skills continuously.
• Gym benefits, psychological counseling, and weekly lunch reimbursements
• An Onboarding kit and access to cutting-edge technologies and tools to make your work easier.
• Referrals program bonuses special occasions gifts to celebrate your achievements.
• People Care referent to support your well-being and personal development

We value your well-being and happiness. We grow together

How we work:

• We offer a flexible and diverse work environment that fosters multicultural talent
• We value autonomy and creativity, We want people to bring ideas to the table and to think as leaders.
• We put our focus on real human connections

At Rootstrap, we help companies launch, grow, and scale their digital products and services. With over 290 global team members, we've built solutions for industry leaders like MasterClass, Universal, and Google, as well as for innovative startups and inspired pioneers. Our team takes pride in making an impact that goes beyond the code, earning regular recognition as a Fastest Growing Company and Best B2B Service Provider.

We embrace an AI-first mindset, continuously exploring how artificial intelligence can enhance the way we build products, solve problems, and deliver value. Across all stages of the development process, we encourage our teams to actively leverage AI to boost productivity and drive innovation.

With offices in Uruguay, Argentina, and Colombia, we offer the flexibility to work remotely. Discover more about life at Rootstrap at

All of our candidate searches are covered under Uruguayan Law the purpose of this law is to promote the inclusion of people with disabilities).