Senior Data Scientist – Generative AI

We are growing. And we are looking for talented people. At Decskill, we believe that technological excellence is driven by human talent. We are an IT consulting company with more than 10 years of consolidated experience in the market, focused on building long-term relationships with both our clients and our people. Today, we are a community of over 800 professionals, working from Lisbon, Porto, and Madrid, contributing to impactful technology initiatives. As part of the Astek Group, we combine a strong local culture with a global presence, being active in around 23 countries across 4 continents. This allows us to offer an international context, diverse challenges, and long-term career opportunities, while staying close to our teams. We would like to meet a Senior Data Scientist – Generative AI & NLP for a project in Lisbon

Responsibilities:
• Develop and implement end-to-end Data Science and Machine Learning solutions, from data preparation and modelling to evaluation and deployment.
• Design, develop and optimize NLP, Generative AI and Machine Learning solutions.
• Perform exploratory data analysis (EDA), data preparation and transformation to support model development.
• Develop and evaluate models using Python and relevant Data Science and Machine Learning frameworks.
• Implement LLM-based solutions using technologies such as RAG, prompt engineering and Generative AI platforms.
• Work with cloud infrastructure, preferably AWS, to develop and deploy scalable AI and ML solutions.
• Collaborate with cross-functional teams to deliver AI and Data Science projects.
• Apply software engineering best practices, including version control, testing and CI/CD.
• Contribute to MLOps practices and the continuous improvement of ML workflows.

Requirements:
• Degree in Computer Science, Data Science, Mathematics or a related field.
• 5+ years of professional experience in Data Science and Machine Learning projects.
• End-to-end experience across the Data Science / ML lifecycle, including data preparation, modelling, evaluation and deployment.
• Strong knowledge of Data Science concepts, particularly exploratory data analysis (EDA), modelling and model evaluation.
• Strong experience with Python and ML frameworks such as scikit-learn, PyTorch, Keras, OpenCV and pandas.
• Experience with data preparation and transformation using SQL and/or pandas.
• Hands-on experience with cloud infrastructure, preferably AWS.
• Experience with LLMs, RAG, prompt engineering and Generative AI technologies.
• Knowledge of MLOps tools such as MLflow and Databricks (nice to have).
• Familiarity with Git, CI/CD pipelines and unit testing (nice to have).
• Fluent in English (C1
- is mandatory). Are you looking for an environment that values curiosity and commitment? Here, your contribution has real impact and individual growth is taken seriously. Find with us the right opportunity to grow What you can expect from us
• Long-term projects with national and international context
• Opportunities to grow technically and professionally
• A people-first culture, focused on transparency and trust
• Teams that value ownership, collaboration and stability Join us Send us your CV in English to marta.fonseca@decskill.com with reference “MF / DAI”. Your next challenge might start here. At Decskill, we are committed to equal opportunities and non-discrimination. We promote a culture of diversity and inclusion, where recruitment and career progression are based solely on talent, regardless of age, gender, ethnicity, race, nationality, or any other form of discrimination incompatible with human dignity.