Jobs – Carrots

BARCELONA OR FULLY REMOTE

PRODUCT

ANALYTICS

You are a student currently enrolled in a Spanish university (ideally near Barcelona) able to sign a “convenio de prácticas”.
You love connecting numbers with real user stories and have a strong interest in UX data and app performance.
You have an analytical mindset and the curiosity to find the “why” behind user behavior.
You are comfortable creating structured reports and visuals to share findings with a squad.

Ensure every product decision is driven by data evidence.
Define and implement event tracking plans (naming conventions and parameters) across Firebase and Amplitude.
Study user behavior through funnels, sessions, screen paths, and retention curves to identify drop-off points.
Build, automate, and maintain dashboards in Amplitude, Looker, and Firebase.
Conduct market research and competitor analysis using tools like Data.ai, SensorTower, and AppTweak

Education: Current university student in Spain.
Analytical: Ability to interpret funnels, retention, and engagement metrics.
Tools: Familiarity with Amplitude, Firebase, Looker, BigQuery, Appsflyer, and RevenueCat.
Technical: Proficiency in Google Sheets. Basic knowledge of SQL or Python for data exploration is a plus.

Remuneration: A paid full-time internship with real ownership and impact.
Flexibility: Flexible working hours, 25 days annual leave, and 1 month of ‘work from anywhere’ outside of Spain.
Workspace: Private offices at Norrsken House with a €5,000 budget for professional home-office equipment.
Wellness & Perks: High-end gym membership (innerflow.es) and healthy in-office catering starting at €2-€3.
Growth: Dedicated education budget and a tailored career plan with performance reviews every 6 months.

HO CHI MINH

A hybrid profile: part builder, part architect, and part mentor.

Someone who loves building predictive systems and designing scalable data architectures.
Capable of balancing hands-on coding with leading high-performance teams.
Data-obsessed, collaborative, and comfortable in a fast-paced environment

Lead all modeling initiatives: LTV prediction, churn models, signal optimization, and pricing/retention forecasting.
Architect and maintain scalable data pipelines from sources like BigQuery, Firebase, AppsFlyer, and RevenueCat.
Act as the founding technical mentor for the Data team in Vietnam.
Make every app smarter through predictive data and automation.

5+ years in Data Science or ML Engineering, with 2+ years in leadership or mentorship.

Strong foundation in probability, statistics, and ML fundamentals.
Expertise in Python (pandas, scikit-learn, TensorFlow, PyMC), BigQuery, GCP, and dbt.
Excellent English for collaboration with distributed teams.

Attractive base salary in USD + Performance-based quarterly bonus (up to 30%).

BARCELONA OR FULLY REMOTE

You are a student currently enrolled at a university in Spain able to sign a “convenio de prácticas“.
You love creating designs that convert and can balance high-level creativity with practical usability.
You are a curious, proactive designer who finds ways to improve flows before being asked.
A collaborative communicator who views themselves as the owner of usability and polish, not just aesthetics.

Design user experiences for live Carrots apps that are as beautiful as they are effective.
Create user flows, wireframes, and interactive prototypes in Figma for real product features.
Conduct UX research, including usability testing, competitor audits, and heuristic analyses.
Optimize designs for activation, retention, and monetization through growth-oriented experimentation on paywalls and onboarding.
Maintain and improve the design system, ensuring clean Figma files for developer handoff.

Core Technical: Proficiency in Figma and a solid understanding of UX/UI principles.
Portfolio: Strong portfolio showcasing web or mobile app projects (personal, academic, or professional).
Analytical: Ability to interpret product data and user behavior to inform design decisions.
Requirements: Full-time availability (40h/week) for at least 6 consecutive months.
Nice-to-have: Familiarity with tools like Amplitude, Firebase, or Looker and experience with A/B testing.

Paid Internship: A remunerated full-time position offering real ownership—you will ship end-to-end designs, not just “student tasks”.
Flexibility: Flexible working hours, 25 days annual leave, and 1 month of “work from anywhere” outside of Spain.
Workspace & Tech: Private office at Norrsken House with a €5,000 budget for professional home-office equipment.
Wellness & Perks: Option for a high-end gym membership (innerflow.es) and healthy in-office catering for €2-€3.
Career: Tailored career plan with performance reviews and salary calibrations every 6 months.

BARCELONA

You are a Python-first, statistics-strong individual.
You possess the autonomy and speed to self-direct and ship working code without step-by-step guidance.
You are capable of explaining complex modeling choices in plain language with actionable conclusions.
You are currently a student at a university in Spain able to sign a “convenio de prácticas”.

Partner with Data Analysts to solve complex problems such as probabilistic LTV, churn prediction, and forecasting.
Build, compare, and iterate LTV models (e.g., survival/retention-based, GBMs) to produce calibrated predictions for UA and pricing.
Predict churn windows and retention curves by app/geo/cohort to inform payback and creative strategies.
Translate model outputs into conversion signals for Google and Meta optimization.
Pull and transform event and purchase data from BigQuery, RevenueCat, and AppsFlyer into model-ready datasets.
Evaluate A/B tests and pricing experiments using frequentist or Bayesian methods

Core Technical: Strong hands-on experience with Python (pandas, NumPy, scikit-learn, Jupyter).
Theoretical: Solid understanding of probability, hypothesis testing, regression, classification, and model calibration.
Evidence: Ability to show at least one end-to-end model (academic or personal project).
Nice-to-have: Experience with Bayesian modeling (PyMC/Stan), survival analysis, gradient boosting (XGBoost/LightGBM), and SQL/BigQuery.

Remuneration: A remunerated full-time position providing real ownership and impact.
Flexibility: Flexible working hours, 25 days annual leave, and 1 month of ‘work from anywhere’ outside of Spain.
Workspace: Private office at Norrsken House and a €5,000 budget for professional home-office equipment.
Wellness: Option for a high-end gym membership (innerflow.es) and healthy in-office catering starting at €2-€3.
Career: Tailored career plan with performance reviews and salary calibrations every 6 months.