Job offer

Machine Learning Engineer (Full-Time) (f/m/d)

Julius Baer is looking for a Machine Learning Engineer in Madrid to develop and operate scalable AI and ML solutions—particularly multi-agent systems and LLM integrations—as part of an agile team. The role covers the entire lifecycle, from design to implementation, in a DevOps environment.

Tasks

  • Development of multi-agent systems and graphs with reasoning and vision capabilities
  • Design and implementation of AI systems to embed AI responses in corporate data
  • Evaluation and integration of AI models (e.g., LLMs) while ensuring optimal performance and reliability
  • Optimization of Agent-Based Workflows and AI Agents for Production Use Cases
  • Testing and optimizing system prompts and few-shot examples to ensure accurate, consistent, and safe AI outputs
  • Evaluation of machine learning and AI models using appropriate metrics, evaluation datasets, and techniques, as well as continuous iteration and improvement
  • Collaborate with platform teams, data engineers, data scientists, and other stakeholders to integrate machine learning solutions into existing systems and processes
  • Participate in code reviews, testing, and debugging to ensure the quality and reliability of machine learning solutions

Requirements

  • Strong problem-solving and analytical skills, with the ability to think critically and creatively when faced with complex problems
  • Excellent communication and collaboration skills, with the ability to work effectively with cross-functional teams and stakeholders at all levels of the organization
  • Ability to efficiently manage multiple workloads, prioritize tasks, manage schedules, and deliver high-quality results on time
  • A passion for continuous learning and an interest in staying up to date on the latest developments in machine learning and artificial intelligence
  • Attention to detail and a commitment to producing high-quality, reliable, and maintainable code
  • Bachelor's or Master's degree in data science, computer science, mathematics, statistics, or a related field
  • Strong programming skills in Python, with experience in machine learning libraries and deep learning frameworks such as TensorFlow or PyTorch
  • Proven experience working with large language models (LLMs)
  • A solid understanding of AI agents and agent-based workflows, LLM orchestration frameworks, and reasoning patterns
  • Experience in data preprocessing, feature engineering, and techniques for model selection and evaluation
  • Knowledge of statistical and mathematical concepts relevant to machine learning, such as probability theory, linear algebra, and optimization

Job details

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