• Design, build, and implement mathematical models to drive key long-term product goals, like training a model that predicts which of our free users are most likely to subscribe, or recommending the right articles to the right users at the right time. • Lead projects with hands-on analysis and modeling, drawing from multiple analytical methods to choose the right tool and right level of complexity appropriate for the job. • Use quantitative analysis to deeply understand what our users are saying, and to develop recommendations based on that analysis. • Design and develop data science pipelines in production. • Guide complex experiments. • Cultivate an outstanding data science environment.

• Designing rigorous observational research frameworks that move beyond correlation toward defensible causal inference • Addressing confounding, selection bias, missingness, and other structural challenges in real-world healthcare data • Extracting outcome intelligence from newly acquired longitudinal practitioner datasets • Connecting prescribing patterns, lab data, and behavioral signals into coherent analytical narratives • Establishing methodological standards that protect the integrity of our claims • Translating complex statistical findings into clear implications for Product, Marketing, and executive stakeholders • Leading and mentoring a small data team while remaining deeply hands-on in research and modeling • Building repeatable research processes that can scale as new data flows in

Role Description IXL Learning, developer of personalized learning products used by millions of people globally, is seeking a Portuguese Language Tutor to join our Rosetta Stone Language Tutor Team. We all share a passion for building a world in which everyone can speak, read, and write with confidence. As a language coach, you will: - Facilitate small, engaging, and safe online tutoring sessions that help learners produce speech and socialize in their new language. - Motivate thousands of learners and serve as a bridge to help them communicate thoughts and concepts, and connect cultures. - Be self-motivated and take pride in your commitment to our learners and your colleagues. - Thrive in an adaptable work environment and understand time management and priorities. This is a fully remote, part-time position in the United States. Qualifications - Native European Portuguese speaker. - Completion of Bachelor's degree. - Teaching and/or tutoring experience preferred (familiarity with Rosetta Stone platforms desired). - Strong proficiency with technology and online platform experience with web conferencing solutions preferred. Requirements - Proven flexibility in schedule to meet the hours outlined in the overview. - Must be comfortable with technology and have access to broadband Internet from a personal computer (Wired internet connection required). - Exceptional written and verbal communication skills, with the ability to teach grammar concepts. - Exceptional presentation skills. - Excellent interpersonal skills - dynamic, enthusiastic, upbeat individual who connects well with others and has a positive, collaborative attitude. Benefits - Work remotely. - Flexible schedule.

• Leverage causal inference methods or statistically sound analyses to drive actionable insights • Build metrics and measurement frameworks that are statistically and causally robust • Establish strong partnerships with team members and diverse stakeholders across the business • Facilitate ownership and accountability by ensuring that the team is producing trustworthy and high-quality outputs • Proactively explore trends in content discovery to surface future opportunities • Work independently and drive your own projects