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Selected role

Data Scientist (Machine Learning focus)

Volotea Barcelona, CT, ES

Senior Full-time

Hello! We are Volotea, the airline of small and mid-sized cities in Europe.

We’re growing our Data Science team — and we’re looking for someone who’s passionate about applying Machine Learning to real business challenges.

If you love building models, experimenting with data, and seeing your work make a real impact across operations, finance, and strategy, you’ll feel right at home here.

Take off with us! Your journey starts here.

How will it be to work with us?

You’ll join a cross-functional Data Science team that collaborates with multiple departments.

Your goal: transform data into actionable insights and scalable ML solutions that drive measurable results:

Design, build & refine ML models: Develop, test, and iterate on machine learning models and mathematical-programming approaches.
Prototype Production: Write clean, tested Python code, review peers’ work, and deploy services through our CI/CD pipeline.
Monitor & improve performance: Profile algorithms, tune parameters, and track KPIs to ship incremental improvements that make our systems smarter.
Go beyond modelling: Explore projects in forecasting, optimization, experimentation design, or causal inference as business needs evolve.
Collaborate & communicate: Work closely with operations, scheduling, finance, and IT to turn data and constraints into actionable solutions.
Stay curious: Apply new industry methods and academic research to enhance workflows and processes.

*Why join us?

️ Travel the world for less**

Enjoy exclusive deals with 180+ airlines—fly with your family for up to 4-5 times less than standard fares, just covering airport taxes. Weekend getaways or global adventures? You decide!

A prime location in Barcelona – And no, we’re not located at the airport!

You may not have seen us at Barcelona Airport, but there’s a reason for that—you’ll understand when you get to know us! Our HQ is in a top area, surrounded by great restaurants, shops, and services.

We work hard, but we have fun too!

We love bringing people together with events like: Carnival parties Trips to Port Aventura Ski getaways Running clubs Paddle & ping-pong tournaments

We’re an active, social team—there’s always something happening!

Make an impact – Bring your ideas to life!

At Volotea, your ideas matter. We give you the space and support to create, innovate, and shape the company’s future.

A benefits plan that works for you

Customize your benefits! Allocate part of your salary to dining, transport, or health insurance, tax-free—meaning more savings for the things you love!

‍️ Your well-being comes first

Enjoy discounted gym memberships, free fresh fruit, and coffee to keep you energized.

A global teamwork

In a diverse, multicultural environment where teamwork and innovation drive success.

Grow your career with us

Access training in soft skills, office tools, and languages to boost your career.

Work-Life balance – Flexibility to thrive

With flexible schedules, hybrid models with up to t*wo days of remote work per week*, flexible vacations, and your birthday off, you can grow professionally without compromising your well-being.

Ready to join us?

What will make you succeed in this position:

Hold a degree in a quantitative field (Statistics, Mathematics, Physics, Engineering, Computer Science, etc.)
Have 1+ years of hands-on experience in data science and machine learning
Know how to design and evaluate models (feature engineering, model selection, hyper-parameter tuning, interpretability…)
Write production-quality Python code using data and ML libraries
Have a good grasp of MLOps principles (versioning, reproducibility, monitoring)
Are fluent in SQL and comfortable with relational databases
Communicate clearly and enjoy explaining technical ideas to non-technical people
Speak Spanish and English fluently
Think creatively and analytically — you don’t just analyze data, you look for better ways to solve problems.

Nice to have

Master’s Degree in Data Science, Machine Learning, AI, Applied Mathematics, Statistics, Optimization, or similar.
Solid software design and testing habit.
Experience with cloud platforms (Azure, AWS, or GCP)
Exposure to Big Data tools (Spark, PySpark, Hadoop, Hive, Impala…)

**️ Our Tech Stack

Python** (Anaconda, uv, pandas, polars, NumPy, SciPy, scikit-learn, LightGBM, shap, mlflow, optuna, jupyter, matplotlib, seaborn, streamlit, Flask, SQLAlchemy, pytest, …) -GitHub (git, ruff, pre-commit) - VS Code & PyCharm · Docker - PostgreSQL, Redshift & Delta Lake - PySpark, Databricks - Azure & AWS - Power BI

Learn more about working at Volotea HQ

VOLOTEA | Jobs and Careers

VOLOTEA | Vuelos baratos, ofertas y billetes de avión a ciudades de toda Europa.

Listen to our Top Management introduce our culture at Volotea.

Volotea is an equal opportunity employer that values diversity and inclusion and strives to recruit diverse candidates. Our goal is to continuously improve and sustain an inclusive culture by attracting, developing, and engaging the best talent in our industry.

Data Privacy

Please read our Data Privacy Policy here.

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