> Markdown version of [/jobs/ext/3328507-data-scientist](https://www.wearedevelopers.com/jobs/ext/3328507-data-scientist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Scientist - **Company:** The Knot Worldwide - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Data Analysis, Collaborative Software, Data Infrastructure, Digital Assets, Statistical Hypothesis Testing, Python (Programming Language), Data Processing, Sql Optimization, Data Analytics - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/senior-data-scientist-the-knot-worldwide-9858553 ## About the Role * Excellent communication skills; able to translate technical concepts to non-technical audiences * Strong business acumen and ability to translate business problems into analytical solutions and decision frameworks * Demonstrated ability to influence stakeholders and drive alignment through data-driven insights and recommendations * Advanced knowledge of statistics, including hypothesis testing, regression, causal inference, and forecasting * Hands-on experience with experiment design, analysis, and rollout of A/B and multivariate tests * Advanced SQL skills and ability to write efficient, production-ready queries * Strong Python skills for data manipulation, visualization, and advanced analysis * Knowledge of data modeling and experience partnering with engineers on data infrastructure * Experience prioritizing and managing analytical work, data assets, or product backlogs in a cross-functional environment * Master's or Ph.D. in a quantitative field preferred * 2+ years of experience in data science or advanced analytics, with some prior leadership, mentorship, or project ownership experience * Fluent in English & Spanish ## Description TKWW is looking for a Senior Data Scientist to join our team of data professionals supporting our Marketplace. The Senior Data Scientist will play a critical role in shaping data strategy, guiding experimentation, and driving impact through advanced analytics. They will partner with cross-functional teams-including product managers, engineers, and business stakeholders-to design experiments, develop analytical tools, and ensure we are making data-driven decisions that deliver measurable results. As a trusted advisor and mentor, this person will both lead analyses directly and elevate the work of the broader team., * Gather, analyze, and interpret data to deliver business impact and help the organization make informed decisions * Apply advanced statistical and machine learning techniques (e.g., hypothesis testing, regression, classification, clustering, forecasting, causal inference) to uncover insights and guide strategy * Forecast and simulate hypotheticals to provide early potential signals before large initiatives start * Design and analyze A/B and multivariate testing experiments; guide experimentation best practices across teams * Design, build, and maintain reusable, scalable data products and self-serve capabilities used by multiple internal teams * Translate analyses into clear, actionable recommendations, linking insights to business outcomes such as ROI, conversion, retention, and revenue * Maintain a deep understanding of the product, relevant data assets, and the outcomes of past experiments and analyses * Identify opportunities for new data products and integrations, prioritize a backlog of data assets and use cases, and collaborate with business partners to implement them * Partner closely with Product, Engineering, Marketing, Sales, and other stakeholders to ensure strong internal customer focus and alignment * Partner with engineers to ensure appropriate and scalable tracking is in place, * Commit to our customers: You act as one team on behalf of our customers. You lead with head and heart, and build what matters for life's most meaningful moments. * Raise the bar: You define "great" and work backwards. You don't just accept how it's been done, but boldly define how it should be. You are unafraid to innovate, learn, and keep moving forward toward our shared vision. * Be all in: You believe in our mission and take ownership of your work. You debate openly to reach the best outcomes, speaking with clarity and care, embracing diverse perspectives, then commit fully. * Celebrate impact: You measure success by the outcomes you create. You hold yourself accountable to delivering value, while recognizing progress and the lessons learned along the way. You love to win, together.