Our global family of brands provide best-in-class products, services and content to take celebration planning from inspiration to action.

At the core of our business is our industry-leading global online wedding Vendor Marketplace, connecting couples with local wedding professionals and a comprehensive suite of personalized wedding websites, planning tools, invitations, and registry services that make wedding planning easier for couples around the globe.

Each year, we connect more than 4.5 million users with around 900,000 global small businesses through our Vendor Marketplace.

Each year, we help millions of couples around the world celebrate life’s most meaningful moments, while also helping hundreds of thousands of integral small business owners get discovered and scale. ABOUT THE ROLE AND OUR TEAM: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.RESPONSIBILITIES: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 placeSUCCESSFUL CANDIDATES HAVE: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 preferred2+ years of experience in data science or advanced analytics, with some prior leadership, mentorship, or project ownership experience

Fluent in English & SpanishWORK MODEL:This role is Together@TKWW-eligible and based near one of our office hubs.

You’ll be expected to work in the office two days a week as part of our hybrid work model. #LI-Hybrid #professional AI FLUENCYAt TKWW, AI is a tool that helps our teams work smarter, move faster, and spend more time on the work that matters most.





This isn't about replacing our people's expertise — it's about equipping every employee to use AI to raise the bar on the work we do together.

You don't just accept how it's been done, but boldly define how it should be. TOGETHER@TKWW: OUR APPROCH TO HYBRID WORKTogether@TKWW is designed to support how we work best: combining the flexibility we value with meaningful opportunities to connect in person.

For Together@TKWW-eligible roles, this includes regular in-office time to foster collaboration and connection.

For roles not eligible for in-office expectations, we support connection through virtual collaboration and intentional facilitate in-person collaboration, we have office spaces in Barcelona, Spain; In addition to federal law requirements, The Knot Worldwide complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.

The Knot Worldwide expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran Notice: The Knot Worldwide (TKWW) processes your personal data to evaluate your application, based on the legal ground of taking steps prior to entering into a potential employment contract.

Only the data strictly necessary for this purpose is collected.

In some cases, your data may also be processed based on TKWW’s legitimate interests (e.g., You have the right to access, rectify, or delete your data, and to object to certain uses.

To learn more about your rights, please consult our The Knot Worldwide (TKWW) processes your personal data to evaluate your application, based on the legal ground of taking steps prior to entering into a potential employment contract.

Only the data strictly necessary for this purpose is collected.

In some cases, your data may also be processed based on TKWW’s legitimate interests (e.g., You have the right to access, rectify, or delete your data, and to object to certain uses.

To learn more about your rights, please consult our Privacy Policy.

If you wish to file a complaint, you may contact the competent data protection authority.

If you wish to file a complaint, you may contact the competent data protection authority.

📌 Data Science Data Science Senior Data Scientist (Remote) (Barcelona)
🏢 The Knot Worldwide
📍 Barcelona