Senior Data Scientist, AWS

Jordan martorell s.l.; Barcelona; Híbrido; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A technology startup in Barcelona is seeking a Data Scientist with over 3 years of experience to join their team. You will explore complex datasets, build scalable ML models, and collaborate with stakeholders to enhance ad performance. This role offers a hybrid working model, professional development opportunities, and a chance to start your career in Data Science.

Servicios

Hybrid working model

Professional development opportunities

Flexible work hours

Relocation package

Formación

• 3+ years of experience in data science, preferably in a product-focused environment.
• Solid understanding of statistical modeling and machine learning fundamentals.
• Hands-on experience in DNN model training libraries and frameworks.

Responsabilidades

• Explore complex datasets to uncover trends and insights.
• Build and deploy full-cycle data science solutions.
• Collaborate with stakeholders to develop data-driven strategies.

Conocimientos

Data science experience

Statistical modeling

Machine learning

Python proficiency

SQL proficiency

Educación

Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Data Science

Herramientas

PySpark

Pandas

AWS

PyTorch

TensorFlow

Descripción del empleo

Job Overview

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. 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 keep growing and learning from a passionate team of Data Scientists, Data Analysts, and ML/Data Engineers who are ready to innovate and inspire!

Responsibilities

Uncover trends and insights by independently exploring complex datasets and resolving intricate data challenges. Build and deploy full‑cycle data science solutions—from exploratory analysis to scalable, high‑performing models—focused on improving ad targeting, bidding, and campaign results. Work closely with both business and technical stakeholders to turn requirements into impactful, data‑driven strategies that boost advertising performance and ROI. Improve and fine‑tune existing ML models and data pipelines within the ad‑tech space, ensuring they remain efficient and aligned with a fast‑moving market.

Qualifications

• 3+ years of experience in data science, preferably in a product‑focused environment
• Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Data Science, or a related field.
• Solid understanding of statistical modeling and machine learning fundamentals.
• Proficient in Python and SQL. Experience with frameworks such as PySpark and Pandas. Skilled with cloud services (e.g., AWS). Hands‑on experience in DNN model training libraries and frameworks (e.g., PyTorch, TensorFlow, Hydra, Comet).

Benefits

Hybrid working model from Barcelona's Hub (relocation package is included). Opportunities for professional development and growth. Flexible work hours and vacation policy. Great opportunity to kick‑start your career in Data Science.