AdTech Data Scientist — Hybrid, Relocation & Growth

Babel Profiles; Barcelona; Hybrid; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Hybrid working model

Opportunities for professional development

Flexible work hours

Relocation package

Job summary

A global tech company in Barcelona is seeking an experienced Data Scientist to optimize advertising performance and contribute to high-impact projects. You will explore large datasets, design data science solutions, and develop machine learning models. Candidates should have a strong background in data science, preferably with 5+ years of experience. The role offers a hybrid working model and opportunities for professional growth, making it an excellent chance to advance your career in Data Science.

Qualifications

• 5+ years of professional experience in data science, ideally in product-oriented organizations.
• At least 3 years of hands-on experience in the AdTech domain or with advertising-related platforms.
• Solid background in statistical analysis and machine learning techniques.

Responsibilities

• Explore and analyze large datasets to identify trends and actionable insights.
• Design and deploy end-to-end data science solutions, ensuring scalability.
• Develop machine learning models for ad targeting and campaign evaluation.

Skills

Data analysis

Machine learning

Problem-solving

Statistical analysis

Collaboration

Education

Bachelor’s or Master’s degree in Computer Science, Statistics, Mathematics

Tools

Python

SQL

PySpark

Pandas

Databricks

Job description

What if your insights could directly shape how millions of ads reach their audience every day?

Our client is a rapidly scaling, global tech company redefining mobile app monetization through advanced data science and advertising intelligence. With a strong international footprint across Spain, Poland, and the United States, and a fully distributed team worldwide, they foster a culture built on diversity, collaboration, and technical excellence.

As part of their growth in Barcelona, they are looking for an experienced Data Scientist to turn complex data into actionable insights, optimize advertising performance, and contribute to high-impact projects in a dynamic ad-tech environment.

Main responsibilities

• Explore and analyze large and complex datasets to identify trends, patterns, and actionable insights, working independently on challenging data problems.
• Design, build, and deploy end-to-end data science solutions, from early analysis and model development to production, ensuring scalability and high performance.
• Develop and refine machine learning models focused on advertising use cases, including ad targeting optimization, bidding strategies, and campaign performance evaluation.
• Partner with product, engineering, and business teams to translate commercial and technical needs into effective, data-driven solutions that improve advertising impact and ROI.
• Maintain, monitor, and enhance data pipelines and machine learning systems, particularly within ad-tech environments, adapting them to changing market dynamics.
• Work with modern data and ML tooling, including Python and SQL, data processing frameworks such as PySpark and Pandas, and cloud-based infrastructures.
• Leverage ETL and analytics platforms like Dagster and Druid or equivalent technologies, as well as ML frameworks such as PyTorch and related tooling; experience with Databricks is considered a plus.

Core skills/experience

• Bachelor’s or Master’s degree in Computer Science, Statistics, Mathematics, or a related technical field.
• 5+ years of professional experience in data science, ideally within product-driven or data-intensive organizations.
• At least 3 years of hands-on experience working in the AdTech domain or with advertising-related data and platforms.
• Strong analytical and problem-solving skills, with the ability to extract insights from complex and high-volume datasets.
• Solid background in statistical analysis and machine learning techniques, including the training and evaluation of advanced models.
• Excellent communication and collaboration skills, with proven experience working in cross-functional, multidisciplinary teams.

What's on offer

• Hybrid working model from Barcelona's Hub (relocation package is included)
• Opportunities for professional development and growth
• Flexible work hours and vacation policy
• Great opportunity to kick-start your career in Data Science

Our recruitment process?

• Step 1: Interview with our Recruiter to get to know you
• Step 2: Interview with our client's HR Team