Senior Data Analyst

4 semanas atrás

Braga, Braga, Portugal Vizor Apps Limited Tempo inteiro

Job Summary

We are seeking a highly skilled Data Insights Specialist to join our team at Vizor Apps Limited. As a key member of our data analytics team, you will be responsible for developing and implementing data-driven solutions to drive business growth and improvement.

Main Responsibilities

  • Participate in the development and improvement of our internal system of evaluating the effectiveness of continuous ad buying.
  • Provide methodological support to the existing team, ensuring the selection of appropriate tools for specific tasks and guiding the correct interpretation of results.
  • Contribute to the automation of processes related to training, validation, monitoring, and updating of predictive models.
  • Develop methods to account for and/or eliminate the effects of seasonality and product activity (A/B tests, LiveOps) to improve forecast accuracy and stability.
  • Monitor forecast achievement and look for and interpret the reasons why forecasts are not met.
  • Develop segmentation techniques to partition data (at the level of users, countries, etc.) into optimal groups.
  • Implement and test new approaches to forecasting (e.g., neural networks, boosting algorithms, etc.).
  • Work with the existing Python codebase, participate in code reviewing and optimization.
  • Develop and test modular, reusable code in accordance with the best practices of mission-critical software development.
  • Effectively communicate complex ideas and data-driven decisions to various stakeholders (CMO, user acquisition team, data engineering team, business analytics team).
  • Write optimized queries and create templates for the PostgreSQL database.
  • Write understandable documentation.

Requirements
  • Bachelor's or Master's degree in statistics, applied mathematics, computer science, or a related field.
  • At least 5 years of experience in data analytics, preferably in mobile advertising or marketing analytics.
  • Proficiency in SQL and Pandas for data manipulation.
  • Intermediate or higher-level Python programming skills.
  • Experience in developing mission-critical software.
  • Experience with version control systems (GitLab).
  • Strong knowledge of statistical modeling, machine learning, and predictive analytics.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication skills with the ability to communicate complex ideas.

Preferred Skills
  • Technical skills: Python (intermediate or advanced level), SQL (PostgreSQL), Git (GitLab), machine learning libraries (e.g. scikit-learn, TensorFlow, PyTorch).
  • Bonus skills: Experience with mobile apps (gaming experience will be a big plus), expertise in time series analysis and segmentation techniques, experience with data visualization tools (Tableau), intermediate written English for effective communication, including with LLMs, familiarity with cohort analysis and key ad-buying effectiveness metrics (ROAS), experience in creating Python packages.

What We Offer
  • We are inspired by each other and share experiences, exchange ideas, discuss them, and then immediately implement them.
  • Our care department works hard to make sure that you hear the word «care» more often than you think about it.
  • The starter kit includes health insurance, paid sick leave, vacation, 4 sick days per year, sports and fitness reimbursement, and psychological support for our employees.
  • We offer everything you need for professional development: specialized conferences, workshops, internal English, and much more.

How to Apply

Please submit your application, including your resume and a cover letter, to [insert contact information]. We look forward to hearing from you

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