Senior Experimentation Scientist
Senior Experimentation Scientist
Employer Active
Job Alert
You will be updated with latest job alerts via email
Share
Job Alert
You will be updated with latest job alerts via email
Job Description
We power peoples progress.
At Preply were all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor craft a personalized learning journey and stay motivated to keep growing. Our approach is human-led tech-enabled - and its creating real impact. So far 90000 tutors have delivered over 20 million lessons to learners in more than 175 countries. Every Preply lesson sparks change fuels ambition and drives progress that matters.
Meet the team!
We A/B test most of our changes on production both product and technical before scaling it to all customers. The Experimentation Squad owns the whole infrastructure and the framework that are used to make those business-vital decisions.
We define the framework rules including the overall evaluation criterion set of target metrics available test types: student-sided tutor-sided clustered; frequentist bayesian interleaving; superiority non-inferiority. We analyze performance of the experimentation program using multiple holdout groups and push product management in the directions which will improve its results. Finally were in charge of improving the companys experimentation culture and education and keeping institutional memory.
What youll be doing:
- Unlock the potential of product and marketing teams by researching and implementing new approaches for hypothesis testing (clustering interleaving geolift..);
- Identifying and designing value-adding insights solutions leveraging data to optimize our strategy;
- Establish credibility and quality of the experimentation framework;
- Quantify the impact of product and marketing development and distinct initiatives in order to identify growth opportunities and help top management in prioritizing Preplys roadmap;
- Level up the experimentation culture across the company;
- Support engineers to build and maintain high-quality data pipelines;
- Collaborate with product teams to help them tackle technical issues with A/B testing.
- Collaborate with marketing teams to measure the impact of changes in budget relocation.
What you need to succeed:
- Extensive experience in the data science & analytics field (5 years experience at least);
- Experience in product or marketing experimentation and desire to dive deeper into the sphere and research best industry practices to build state-of-the-art experimentation in Preply;
- Strong curiosity problem-solving and problem-finding skills;
- Solid SQL hands-on experience and strong knowledge of Python (NumPy Pandas SciPy);
- Good understanding of statistical analysis concepts such as p-value null hypothesis and confidence interval;
- Eagerness to take responsibility for systems that directly impact the companys decision-making process;
- Passion for analyzing data to inform decisions measuring and monitoring;
- Willingness to educate colleagues (doing knowledge-sharing sessions);
- Excellent written and verbal communication skills. Fluent English is a must.
Nice to have:
- Experience applying advanced experimentation - bayesian testing causal impact analysis;
- Knowledge of Airflow Redshift (or any other Data Warehouse DBs - Snowflake BigQuery..)
- Knowledge of Looker Amplitude Databricks or other BI tools.
Why youll love it at Preply:
- An open collaborative dynamic and diverse culture;
- A generous monthly allowance for lessons on ;
- Learning & Development budget including time off for your self-development;
- Competitive financial package with equity and leave allowance;
- The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!).
Our Principles
- Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.
- We do it for learners - For both Preply and tutors learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
- Keep perfecting - To create an outstanding customer experience we focus on simplicity smoothness and enjoyment continually perfecting it as every detail matters.
- Now is the time - In a fast-paced world it matters how quickly we act. Now is the time to make great things happen.
- Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals focus on what matters and utilize our resources efficiently.
- Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories unlocking meaningful insights to guide our decisions.
- Growth mindset - We proactively seek growth opportunities and believe todays best performance becomes tomorrows starting point. We humbly embrace feedback and learn from setbacks.
- Raise the bar - We raise our performance standards continuously alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
- Challenge disagree and commit - We value open and candid communication even when we dont fully agree. We speak our minds challenge when necessary and fully commit to decisions once made.
- One Preply - We prioritize collaboration inclusion and the success of our team over personal ambitions. Together we support and celebrate each others progress.
Diversity Equity and Inclusion
Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. Different opinions and viewpoints are key ingredients in our success as a multicultural Ed-Tech company.
Preply will consider all applications for employment without regard to race color religion gender identity or expression sexual orientation national origin disability age or veteran status. Together we are The World Class.
#LI-VS1
Required Experience:
Senior IC
Employment Type
Full Time
