Junior Data Scientist with English (Recent Graduate Opportunity)

  • fulltime
  • Barcelona, 08007
  • EUR 30000.0 to 40000.0 Annum

Are you a recent graduate, passionate about challenges, and excited about working with cutting-edge technologies?

Are you motivated by transforming data into strategic knowledge and generating real impact?

Would you like to be part of a dynamic, international environment full of opportunities?

Our client, a fast-growing technology startup, is on a mission to accelerate the global success of mobile applications. Backed by a strong client portfolio of top-tier developers and publishers, the company operates from three strategic hubs: Spain, Poland, and the United States. As they continue to scale, they are now expanding their team in Barcelona and seeking motivated recent graduates eager to kick-start their careers and contribute to an ambitious, high-impact project.

Join a vibrant Data Tech-Hub where you can grow and learn from a passionate team of Data Scientists, Data Analysts, and ML/Data Engineers is ready to innovate and inspire!

Key Languages:


Full Professional level of English


Main Responsibilities:


  • Assist in analyzing data to identify trends, patterns, and contribute to actionable insights under the guidance of senior team members.
  • Participate in the design and development of data science solutions
  • Contribute to various stages from initial analysis and model development to deployment, with a focus on optimizing for performance and scalability within ad targeting, bid strategies, and campaign performance analysis.
  • Collaborate with technical and business teams to understand requirements and contribute to data-driven solutions and insights, particularly focusing on enhancing advertising effectiveness and ROI, while learning from experienced colleagues.
  • Assist in maintaining and optimizing existing data processing pipelines and machine learning models, with a focus on applications within the ad-tech ecosystem
  • Contribute to the exploration and evaluation of new data science techniques and technologies relevant to AdTech.


Core Skills/experience:


  • Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Data Science, or a related field.
  • Strong analytical skills with the ability to learn how to derive insights from datasets.
  • Solid understanding of statistical modeling and machine learning fundamentals.
  • Excellent communication and collaboration skills, with the ability to work effectively in a team environment.

Tech Stack (Exposure and Willingness to Learn):

  • Proficient in Python and SQL.
  • Familiarity with data manipulation frameworks such as Pandas.
  • Exposure to big data processing concepts (e.g., PySpark) is a plus.
  • Basic understanding of ETL processes and tools (e.g., concepts similar to Dagster).
  • Basic understanding of OLAP database concepts (e.g., concepts similar to Druid).
  • Familiarity with cloud services (e.g., AWS) at a conceptual level.
  • Exposure to DNN model training libraries and frameworks (e.g., PyTorch, TensorFlow, Hydra, Comet) through coursework or projects.
  • Knowledge of Databricks (even through academic projects) is a plus.


What's on offer:


  • Competitive salary
  • Comprehensive benefits package
  • 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

Step 3: Technical interview 

Step 4: Interview with Hiring Manager


  • Data Science
  • Data Scientist
  • pyspark
  • Data Analytics
  • Python
  • SQL
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