What are we looking for? * +5 years of hands-on experience designing and implementing scalable machine learning products; * Solid understanding of ML algorithms, pipelines, and data transformation processes; * Proficiency in Python, SQL, and software design patterns; * Proven experience implementing ML solutions in microservices architectures within production environments; * At least 2 years of experience working with GCP tools in ML workflows (Vertex AI, BigQuery, Cloud Composer, Cloud Storage); * Proven experience with LangChain, NLP, LLMs, RAGs, and embedding models; * Strong experience in MLOps, automation, and CI/CD for ML workflows; * Experience with testing methodologies (unit, integration, end-to-end) and proficiency in Docker and Kubernetes; * Experience mentoring and guiding other ML developers (a plus); * Experience in the retail or e-commerce sector (a plus); * Familiarity with serverless architectures and advanced search agents (a plus); * Strong focus on automation and AI productivity tools (a plus); * Availability to work in a hybrid model in Lisbon, Braga, or Coimbra (mandatory); * Fluency in spoken and written English (mandatory). What do we offer you? * Health insurance; * Feedback&Coffee – the system encompassing the Performance Management Cycle, with regular feedback moments and Aubay's Career Progression Model; * Work model: Lisbon, Braga, or Coimbra (hybrid/in-person); * A Training Academy designed around you and your needs. Count on technical and soft skills training (e-Learning and classroom), Meet&Techs, Webinars, and Mentoring; * Events and Teambuildings. What makes us different? * Our organizational culture is based on values such as transparency, teamwork, regular feedback, and continuous learning; * Referral bonuses and birthday gifts; * Lounge areas; * We have no dress code; * We call each other by first names and address each other informally; * Coffee and snacks available; * You will grow in good company. Isn't that the best way to grow professionally?