INTERNSHIP: Data Science
hace 3 días
We’re hiring a Python‑first, statistics‑strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. ⚠️ Eligibility: You’re currently studying at a university in Spain (ideally in or near Barcelona) and can sign a "convenio de prácticas". This position is open exclusively for internship agreements. If you’re not sure whether your university can provide one, please confirm with them before applying , as we’ll automatically filter out candidates who can’t meet this requirement. Otherwise, feel free to check out our other junior roles on the Carrots Lab LinkedIn page › Jobs Predict churn windows and retention curves by app/geo/cohort to inform payback and creative/keyword strategy. Signal Engineering for UA Revenue & Cohort Analytics (Python) Pull, transform, and join event & purchase data (RevenueCat, AppsFlyer, Firebase, BigQuery) into model‑ready datasets. Evaluate A/B tests (frequentist or Bayesian), pricing experiments, and funnel changes with confidence intervals and practical uplift . Reproducible codebase : clean notebooks/scripts with README, functions, and basic tests; data pulls automated in Python. Write Python every day: data prep, feature engineering, modeling, evaluation, and reporting visuals. Query data from BigQuery/RevenueCat/AppsFlyer/Firebase via Python; assemble tidy training datasets. linear/GLM , XGBoost/LightGBM/CatBoost , survival analysis , time‑series ). Calibrate predictions (Platt/Isotonic), monitor drift, and set up retraining logic. Pair with Sergi (analytics & viz) and the CEO (UA/product strategy); Python : strong hands‑on with pandas, NumPy, scikit‑learn, Jupyter . Statistics & ML : probability, hypothesis testing, regression, classification, evaluation & calibration. Project evidence : at least one end‑to‑end model you can show (repo/notebook; Availability : full‑time in Barcelona (hybrid), 6+ months commitment. Work authorization : able to work in Spain (student internship agreement or junior contract). Bayesian modeling (PyMC/Stan), survival analysis (lifelines), time‑series (statsmodels). Experience with BigQuery (via Python), RevenueCat , AppsFlyer , Firebase , Amplitude . Basic Git , packaging, and testing discipline. Stack : Python, BigQuery, Looker, RevenueCat, Firebase, AppsFlyer, Amplitude, Google Cloud. Culture : high speed, high standards, zero drama. We spend every euro like it’s our own. Paid Internship: This is a remunerated full-time position designed to give you real ownership and impact — not just “student tasks.” The compensation is competitive for top data students or recent graduates in Barcelona. Flexibility & Time Off: Flexible working hours , 25 days annual leave, and 1 month of 'work from anywhere' outside of Spain. Executive Workspace & Tech: Private offices at Norrsken House Barcelona (with complimentary membership) and a generous €5,000 EUR budget for professional home-office equipment. es, including Spa Access in the same office building. Delicious, healthy, and flexible in-office catering — meals starting at just €2–€3. Training: Dedicated Budget for an education program . A Tailored career plan with performance reviews and salary calibrations every 6 months. If you made it all the way down here… Stop looking for entry-level jobs where they’ll spend six months “onboarding” you to clean up spreadsheets.
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Barcelona, España AstraZeneca A tiempo completo**About AstraZeneca**: AstraZeneca Global Hub is an innovation-driven global biopharmaceutical company focused on the discovery, development, and commercialization of prescription medicines, primarily for the treatment of cardiovascular, renal and metabolic, respiratory and immunological, oncological, and rare diseases. **Internship Opportunity**: In line...
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Data Internship Opportunities
hace 1 semana
Barcelona, España AstraZeneca A tiempo completo**About AstraZeneca**: AstraZeneca Global Hub is an innovation-driven global biopharmaceutical company focused on the discovery, development, and commercialization of prescription medicines, primarily for the treatment of cardiovascular, renal and metabolic, respiratory and immunological, oncological, and rare diseases. **Internship Opportunity**: In line...
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INTERNSHIP: Data Science
hace 2 días
barcelona, España carrots A tiempo completoWe’re hiring a Python‑first, statistics‑strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. ⚠️ READ THIS FIRST — Apply only if you meet this: Eligibility: You’re currently studying...
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INTERNSHIP: Data Science
hace 2 días
Barcelona, España carrots A tiempo completoWe're hiring a Python‐first, statistics‐strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. Compruebe a continuación si tiene lo necesario para esta oportunidad y, si es así, envíe su...
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INTERNSHIP: Data Science
hace 2 semanas
Barcelona, España carrots A tiempo completoWe’re hiring a Python‑first, statistics‑strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información...
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INTERNSHIP: Data Science
hace 2 semanas
Barcelona, España carrots A tiempo completoWe're hiring a Python‐first, statistics‐strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información...
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INTERNSHIP: Data Science
hace 1 semana
Barcelona, España carrots A tiempo completoWe're hiring a Python‐first, statistics‐strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. READ THIS FIRST — Apply only if you meet this: Eligibility: You're currently studying at a...
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INTERNSHIP: Data Science
hace 3 días
Barcelona, España carrots A tiempo completoWe're hiring a Python‐first, statistics‐strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. READ THIS FIRST — Apply only if you meet this: Eligibility: You're currently studying at a...
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INTERNSHIP: Data Science
hace 2 días
Barcelona, España carrots A tiempo completoWe're hiring a Python‐first, statistics‐strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV , churn prediction , and forecasting that actually moves CAC, payback, and ROAS. Compruebe a continuación si tiene lo necesario para esta oportunidad y, si es así, envíe su...
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INTERNSHIP: Data Science
hace 2 semanas
Barcelona, España carrots A tiempo completoWe’re hiring a Python‑first, statistics‑strong Data Science Intern (or junior ML Engineer) to partner with our Data Analysts on the hardest problems we have: probabilistic LTV, churn prediction, and forecasting that actually moves CAC, payback, and ROAS.Envíe su solicitud a continuación después de leer todos los detalles y la información de apoyo...
