Appodeal is a dynamic US-based product company with a truly general presence. We have offices in Warsaw, Barcelona and Virginia along with remote team members located around the world. Our company thrives on diversity, collaboration, and innovation, making us a leader in the mobile app monetization space. At Appodeal, we're more than just a company—we're a team united by a common mission: to help every person discover and grow their talents! We take pride in our cutting-edge product and our internationally dispersed team of talented professionals. Here's what we value, and what we hope you do too: Continuous Learning and Growth: We are passionate about learning, growing personally, and building rewarding careers. Making an Impact: We are committed to building a history-defining company that leaves a lasting impact on the mobile app industry. Solving Exciting Challenges: We tackle complex problems every day, supported by a team of world-class professionals and mentors. Enjoying the Journey: We believe in having fun while working toward our goals. BidMachine — a high-performance in-app-only Programmatic Ad Network built on an advanced technology stack. The team is looking for a Data Scientist based in Barcelona or ready for relocation to Barcelona. Responsibilities: Analyze data to identify trends, patterns, and actionable insights, independently solving complex data-related problems. Design and develop end-to-end data science solutions, from initial analysis and model development to deployment, optimizing for performance and scalability. This includes creating models tailored to optimizing ad targeting, bid strategies, and campaign performance analysis. Collaborate with both technical and business teams to understand requirements and translate them into data-driven solutions and insights, particularly focusing on enhancing advertising effectiveness and ROI. Maintain and optimize existing data processing pipelines and machine learning models, with a strong emphasis on applications within the ad-tech ecosystem, ensuring high efficiency and alignment with dynamic market trends. Proficiency in Python and SQL Experience with manipulation frameworks such as PySpark and Pandas Familiarity with Dagster (or similar) as ETL tool and Druid (or similar) as OLAP database Skilled at using cloud services such as AWS etc. Hands-on experience in DNN models training libraries and frameworks (pytorch, hydra, comet etc.) Knowledge of Databricks will be a plus Qualifications: Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, or related field. 5 years of experience in data science, preferably in a product-focused environment. 3 years experience in AdTech. Strong analytical skills with the ability to derive insights from complex datasets. Proficiency in statistical modeling and machine learning techniques. Excellent communication and collaboration skills, with the ability to work effectively in a cross-functional team environment. With an outstanding product and a mission that excites and inspires, Appodeal offers a unique opportunity to make an impact while being part of an amazing team. Join us and help shape the future of mobile app success! Create a Job Alert Interested in building your career at Appodeal? Get future opportunities sent straight to your email. Apply for this job indicates a required field First Name * Last Name * Email * Phone Resume/CV * Enter manually Accepted file types: pdf, doc, docx, txt, rtf Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile Salary Expectations * Potential Start Date * Experience in AdTech * Select How many years of experience do you have in the same role? Can you work as a sole trader/individual entrepreneur? Select J-*****-Ljbffr