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TechYard Linkedin · Posted 28d ago

Staff Machine Learning Engineer

Barcelona, Barcelona, Spain

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Staff Machine Learning Engineer | Barcelona | AI & Data Consultancy


Are you a seasoned ML engineer ready to move beyond execution and into true technical leadership?


We're working with a leading AI & Data consultancy that partners with enterprise clients on large-scale AI transformations. They're looking for a Staff Machine Learning Engineer based in Barcelona to own their most complex, high-impact projects — from architecture design through to production deployment.


The role


This goes beyond building models. You'll set technical direction, mentor engineers, and shape how ML is delivered at scale — while staying hands-on with high-quality code contributions.

  • Set direction for a technical team, ensuring architectural excellence and long-term maintainability
  • Lead and mentor junior and senior engineers, raising the technical bar across projects
  • Design and deploy LLM-based applications, including RAG systems, prompt engineering, and vector databases
  • Partner directly with enterprise clients to translate business challenges into clear technical roadmaps
  • Drive adoption of modern ML best practices across modelling, MLOps, and system design


What you'll bring


  • 6–8 years of experience in machine learning, data science, or a related field
  • Strong Python skills and proficiency in ML/DL frameworks (PyTorch, TensorFlow, Scikit-learn)
  • Deep learning experience (CNNs, RNNs) and solid knowledge of clustering, regression, and classification
  • Hands-on experience deploying LLM applications and RAG pipelines in production
  • Cloud platform experience — AzureML, AWS, or GCP
  • Experience with Databricks, Snowflake, or Dataiku (certifications a plus)
  • A track record of technical leadership and mentoring engineering teams
  • Fluent Spanish/English


Why this role?


  • Staff-level scope with real influence over technical strategy — not just execution
  • Work on cutting-edge AI projects across diverse enterprise clients
  • A collaborative, high-calibre team that values engineering excellence
  • Based in Barcelona


Interested or know someone who'd be a great fit? Apply directly or send me a message — all enquiries handled confidentially.

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