Senior AI Engineer – Greenfield AI Platform Fully greenfield AI initiativeOwn the complete ML lifecycle end-to-endWork at the intersection of AI, privacy, and real-time optimisationAre you a Senior AI Engineer ready to take full ownership of a high-impact AI function?A fast-scaling SaaS company in Dublin is entering a major growth phase and is hiring a Senior AI Engineer to architect and build the intelligence layer of its platform from the ground up. This is a true greenfield opportunity to shape the AI strategy, tooling, and production systems that will sit at the core of a category-defining product spanning AI, compliance, and revenue optimisation.You'll apply machine learning, behavioural analytics, and advanced experimentation techniques to power a real-time optimisation engine. Working primarily in Python with modern ML tooling, you'll build systems that predict user behaviour, optimise decision-making, and continuously learn from live interaction data.The AI capability you develop will be central to the product giving you strong ownership, cross-functional visibility, and direct strategic impact across engineering, product, and compliance.What You'll Be DoingDesigning and building ML models to predict user behaviour and optimise real-time decisionsCreating robust experimentation frameworks (A/B testing, multi-armed bandits, reinforcement learning)Deploying scalable, production-grade ML systems within a SaaS environmentDriving best practices across data, experimentation, and model performanceWhat You'll Bring5+ years' experience in AI/ML engineering with strong Python expertiseProven track record building and deploying ML systems into productionDeep understanding of experimentation methods (A/B testing, causal inference, reinforcement learning)Experience working in fast-moving product environmentsSalary & BenefitsCompetitive base salary + Pension + Health insurance + Stock optionsFor a confidential discussion, contact Olga Torres on or send your CV to