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Senior Data Scientist

The Knot WorldwideBarcelona, Catalonia, SpainData Science & Analytics
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Salary
Not listed
Job type
Full-time
Posted
2 Sept 2026
Status
Open · checked 7d ago

About this role

The Knot Worldwide is seeking a Senior Data Scientist to join the marketplace team in Barcelona, Spain. This hybrid position suits an experienced analytics professional eager to shape data strategy, guide advanced experimentation, and mentor teammates.

Role Overview

The Senior Data Scientist drives impact through advanced analytics, machine learning, and data strategy within the global wedding vendor marketplace. Working alongside product managers, engineers, and business partners, this individual designs experiments, builds scalable data solutions, and translates complex insights into business results. The role combines direct technical execution with mentorship, helping elevate the analytical capabilities of the wider team.

Key Responsibilities

Gather, process, and interpret data to guide organizational strategy and decision-making.
Build and apply advanced statistical and machine learning models, including regression, classification, clustering, causal inference, forecasting, and hypothesis testing.
Simulate scenarios and forecast potential outcomes prior to launching large initiatives.
Design, execute, and analyze multivariate and A/B testing experiments while establishing organizational best practices.
Create scalable, reusable data products and self-service capabilities for internal teams.
Translate data insights into actionable recommendations impacting revenue, retention, conversion, and ROI.
Partner with engineering teams to ensure robust, scalable tracking and data infrastructure.
Identify new data assets and use cases, prioritizing backlogs in collaboration with business stakeholders.

Requirements

Minimum of 2 years of professional experience in data science or advanced analytics.
Prior experience involving project ownership, leadership, or mentorship.
Fluency in both English and Spanish.
Strong business acumen with the ability to translate challenges into structured analytical solutions.
Excellent communication skills for conveying technical concepts to diverse audiences.
Advanced expertise in statistics, encompassing causal inference, forecasting, and regression.
Hands-on background in A/B and multivariate experiment design and rollout.
Master’s or Ph.D. in a quantitative discipline is preferred.

Skills and Tools

Advanced SQL writing skills for efficient query development.
Python proficiency for data visualization, manipulation, and predictive analysis.
Knowledge of modern data modeling techniques.
Familiarity with AI tools to enhance daily productivity and workflow efficiency.

About the Company

The Knot Worldwide operates a leading global online wedding vendor marketplace across more than ten countries, connecting millions of couples with hundreds of thousands of local small business professionals. The company provides a comprehensive suite of digital planning tools, websites, registries, and invitations designed to make celebration planning seamless. Operating under a hybrid work model known as Together@TKWW, the company encourages purposeful in-person collaboration alongside remote flexibility.

How to Apply

Interested candidates should submit their application directly through the official company careers page.

Skills and tech stack

PythonSQL

Questions candidates ask

Where is this job located?

This position is based in Barcelona, Catalonia, Spain, operating under a hybrid work model requiring time in the office two days a week.

What level of experience is required?

Candidates must have 2 or more years of experience in data science or advanced analytics, alongside prior project ownership, mentorship, or leadership background.

What languages are required for the role?

Applicants must be fluent in both English and Spanish.

What technical skills are necessary?

The role requires advanced SQL programming, strong Python capabilities for data manipulation and analysis, and deep knowledge of statistics and experiment design.

How should I apply?

Candidates should apply directly on the official company careers page of The Knot Worldwide.

Ready to apply?

The application is on the official The Knot Worldwide careers page.

Apply on company site