349 Ofertas de Machine Learning en España

A Quantum Computing & AI software company based in Madrid are seeking to bolster their team with a Machine Learning engineer.

Please note this is a fixed term contract of 9 months.

Responsibilities:

• Build and manage end-to-end data and model workflows, including dataset creation, model training, evaluation, and deployment to meet product goals.
• Create and maintain rigorous testing frameworks to ensure model accuracy, reliability, and task alignment through statistical and continuous evaluation methods.
• Enhance training and inference efficiency through distributed computing, system optimisation, and algorithmic improvements.
• Apply reinforcement learning, fine-tuning, and preference-based methods to improve model quality, reasoning, and safety.
• Work closely with researchers and engineers to support data curation, training, and deployment; contribute clean, well-documented, and tested code.

Requirements:

• Bachelor’s degree in Computer Science, Mathematics, Physics, Data Science, Operations Research, or a related field.
• Proficient in Python, PyTorch, and core data libraries (NumPy, Pandas), with experience using modern ML development practices (Git, CI/CD, testing).
• Strong understanding of language modelling, data processing, model architectures, and evaluation methodologies.
• Skilled in handling large datasets and familiar with GPU utilisation, containerised environments (e.g., Docker), and cloud orchestration tools.
• Ability to translate research insights into production-ready solutions with clear communication and a collaborative approach.

If this role is of interest please apply directly on LinkedIn or send a copy of your CV to

By applying to this role you understand that we may collect your personal data and store and process it on our systems. For more information please see our Privacy Notice (

A Quantum Computing & AI software company based in Barcelona are seeking to bolster their team with a Machine Learning engineer.

Please note this is a fixed term contract of 9 months.

Responsibilities:

• Build and manage end-to-end data and model workflows, including dataset creation, model training, evaluation, and deployment to meet product goals.
• Create and maintain rigorous testing frameworks to ensure model accuracy, reliability, and task alignment through statistical and continuous evaluation methods.
• Enhance training and inference efficiency through distributed computing, system optimisation, and algorithmic improvements.
• Apply reinforcement learning, fine-tuning, and preference-based methods to improve model quality, reasoning, and safety.
• Work closely with researchers and engineers to support data curation, training, and deployment; contribute clean, well-documented, and tested code.

Requirements:

• Bachelor’s degree in Computer Science, Mathematics, Physics, Data Science, Operations Research, or a related field.
• Proficient in Python, PyTorch, and core data libraries (NumPy, Pandas), with experience using modern ML development practices (Git, CI/CD, testing).
• Strong understanding of language modelling, data processing, model architectures, and evaluation methodologies.
• Skilled in handling large datasets and familiar with GPU utilisation, containerised environments (e.g., Docker), and cloud orchestration tools.
• Ability to translate research insights into production-ready solutions with clear communication and a collaborative approach.

If this role is of interest please apply directly on LinkedIn or send a copy of your CV to

By applying to this role you understand that we may collect your personal data and store and process it on our systems. For more information please see our Privacy Notice (

Opportunity – Machine Learning Engineer

About the role

At Capitole Consulting , we continue expanding our Data & AI practice and are looking for passionate professionals who want to work on real-world AI projects with impact.

We are seeking a Machine Learning Engineer (MLE) with 3–5 years of experience to support the development and productionization of advanced AI models — from research to scalable, production-ready solutions.

What you’ll do

Design, develop, and train AI and machine learning models (NLP, GenAI, predictive analytics).

Write clean, maintainable, and well-structured Python code.

Collaborate closely with MLEs to deploy and scale models in production environments.

Work with large datasets using Databricks , Pandas , and modern ML frameworks.

Contribute to the continuous improvement of our AI development lifecycle and MLOps practices.

What we value

3–5 years of experience in Data Science or Machine Learning Engineering .

Strong programming skills in Python .

Hands-on experience with Databricks and ML libraries such as scikit-learn , PyTorch , or TensorFlow .

Solid understanding of data processing, feature engineering, and model evaluation.

Knowledge or interest in NLP and Generative AI / LLMs .

Excellent communication skills and a high level of English (team communication in English).

A collaborative mindset and curiosity for innovation.

Why join this project?

Ready to push the boundaries of what’s possible with AI? Join a Quantum AI trailblazer on a mission to make AI faster, greener, and more accessible. You’ll collaborate with world-leading experts in quantum computing and AI, building breakthrough solutions that deliver real-world impact for global clients.

This is your chance to work on cutting-edge projects at the intersection of LLMs, quantum-inspired tech, and applied AI innovation.

This is a 9-month fixed-term contract (with potential extension), based in Madrid with hybrid working flexibility.

What you’ll be doing

• Invent new ways to compress and optimise Large Language Models with quantum-inspired methods.
• Benchmark, stress-test, and fine-tune LLMs to boost accuracy, efficiency, and robustness.
• Build and deploy LLM-powered apps – from RAG systems to AI agents.
• Act as an LLM specialist, spotting opportunities where quantum AI can make the impossible possible.
• Design and train custom deep learning models, not just for language, but also in computer vision and beyond.
• Keep experiments transparent with clear documentation, while driving innovation at speed.
• Mentor teammates, share knowledge, and help grow a culture of technical excellence.
• Stay ahead of the curve with the latest research, tools, and breakthroughs in AI.

What we’re looking for

• A degree in AI, Computer Science, Data Science (BSc, MSc, or PhD).
• 2+ years of hands-on deep learning experience – designing, training, or fine-tuning transformers or vision models.
• Strong track record with transformer models (Hugging Face Transformers, Accelerate, Datasets, etc.).
• Solid grasp of deep learning theory, training & inference.
• Excellent Python skills with PyTorch + Hugging Face expertise.
• Understanding of GPU architectures and LLM infrastructure.
• Hands-on with AWS (or similar), Docker, and deploying models in production.
• Problem-solver with sharp debugging, testing, and performance optimisation skills.
• Clear communicator, great collaborator, fluent in English.
• Bonus points for published research in AI/deep learning.

Ready to push the boundaries of what’s possible with AI? Join a Quantum AI trailblazer on a mission to make AI faster, greener, and more accessible. You’ll collaborate with world-leading experts in quantum computing and AI, building breakthrough solutions that deliver real-world impact for global clients.

This is your chance to work on cutting-edge projects at the intersection of LLMs, quantum-inspired tech, and applied AI innovation.

This is a 9-month fixed-term contract (with potential extension), based in Barcelona with hybrid working flexibility.

What you’ll be doing

• Invent new ways to compress and optimise Large Language Models with quantum-inspired methods.
• Benchmark, stress-test, and fine-tune LLMs to boost accuracy, efficiency, and robustness.
• Build and deploy LLM-powered apps – from RAG systems to AI agents.
• Act as an LLM specialist, spotting opportunities where quantum AI can make the impossible possible.
• Design and train custom deep learning models, not just for language, but also in computer vision and beyond.
• Keep experiments transparent with clear documentation, while driving innovation at speed.
• Mentor teammates, share knowledge, and help grow a culture of technical excellence.
• Stay ahead of the curve with the latest research, tools, and breakthroughs in AI.

What we’re looking for

• A degree in AI, Computer Science, Data Science (BSc, MSc, or PhD).
• 2+ years of hands-on deep learning experience – designing, training, or fine-tuning transformers or vision models.
• Strong track record with transformer models (Hugging Face Transformers, Accelerate, Datasets, etc.).
• Solid grasp of deep learning theory, training & inference.
• Excellent Python skills with PyTorch + Hugging Face expertise.
• Understanding of GPU architectures and LLM infrastructure.
• Hands-on with AWS (or similar), Docker, and deploying models in production.
• Problem-solver with sharp debugging, testing, and performance optimisation skills.
• Clear communicator, great collaborator, fluent in English.
• Bonus points for published research in AI/deep learning.

Hola Consultores, S.L. es una empresa especializada en la provisión de Servicios TIC e Ingeniería para la gestión empresarial, ofreciendo soluciones diseñadas a medida de las necesidades de nuestros clientes.

Nos enorgullece ser una empresa 2.0 innovadora donde las personas son el centro de nuestra atención. La ética, transparencia, imparcialidad e independencia son valores fundamentales en nuestra filosofía, y también estamos comprometidos con la igualdad de género. Nos esforzamos por garantizar oportunidades equitativas para hombres y mujeres en todas las áreas de nuestro trabajo. Además, estamos firmemente a favor de la igualdad en todas sus formas y promovemos un entorno inclusivo donde cada individuo, independientemente de su género, religión, orientación sexual, etnia o cualquier otra característica, sea valorado y respetado.

¡Estamos en la búsqueda de perfiles Machine Learning Engineer !

️ROL : Asumirás las tareas propias de MLE en el despliegue y circuito CI/CD de nuevos modelos, monitorización y re-entrenamiento de modelos.

Serás un perfil que deberás asumir un gran conocimiento técnico y funcional de las aplicaciones del área actuales y futuras. Participarás en los proyectos del área como persona técnica de referencia y en la definición de los procedimientos y metodologías de Desarrollo.

Conocimientos requeridos :

• ML architectures (laboratory, training and inference)
• CI/CD for ML
• Jenkins, GitHub, CodeArtifact
• Monitoring: drift, performance, infra (knowledge of tools will be valued: fluentd, New
• Relic)
• Experience in developing ML models
• Development in Python (will be valued: Scikit learn, Gunicorn, Django)
• Dockerized development
• SQL
• Experiencia en entorno AWS y/o AZURE.

Se valorará :

• AWS Batch
• AWS EKS
• Step Functions
• SageMaker
• CloudFormation
• RDS PostgreSQL
• SQS
• Lambda

Beneficios :

• Contrato laboral indefinido y estabilidad desde el primer día.
• Todo nuestro apoyo para tu desarrollo personal/profesional.
• Jornada laboral hibrida.
• Incorporación inmediata.
• Excelente clima laboral.
• Seguro médico privado con Adeslas (completo + dental).
• Pago del 100% exámenes de certificación oficial.
• Pago parcial de cualquier curso de IT/Data.

Grandes proyectos con tecnologías avanzadas.

¡Únete a nuestro equipo! ¡En Hola Consultores apostamos por ti!

Join a pioneering Quantum AI company that’s redefining how artificial intelligence is built and deployed!

Location: Madrid or Barcelona (Hybrid)

Contract: Fixed Term contract ending 30th June 2026

Responsibilities

• Develop end-to-end data and model pipelines: source, augment, and validate datasets; design and manage training, fine-tuning, and evaluation workflows; deliver production-ready models that meet customer needs.
• Design rigorous evaluation frameworks to ensure model competence and alignment through statistical testing, reliability assessment, and continuous monitoring.
• Optimize training and inference performance using distributed compute resources, reducing latency, and identifying algorithmic or systems-level efficiency improvements.
• Enhance models post-training by applying supervised fine-tuning (SFT), preference optimization, and reinforcement learning techniques to improve reasoning, safety, and helpfulness.
• Compress and specialize models using advanced optimization techniques to meet performance and deployment constraints.
• Collaborate across research and engineering teams on data curation, training experiments, model serving, and system observability.
• Contribute to shared ML infrastructure, writing clean, well-tested, and maintainable Python code, documenting key decisions, and upholding high engineering standards.

Qualifications

• Bachelor’s degree (or higher) in Computer Science, Mathematics, Physics, Data Science, Operations Research, or a related field.
• Strong programming skills in Python and modern machine learning frameworks such as PyTorch.
• Experience with data processing tools (NumPy, Pandas) and software best practices (Git, unit testing, CI/CD).
• Solid understanding of language model training, architecture, and evaluation concepts.
• Hands-on experience with large-scale datasets, including collection, cleaning, annotation, and quality assurance.
• Practical experience using GPUs, containerized workflows (Docker), and distributed or cloud-based job orchestration.
• Ability to interpret research papers, prototype rapidly, and turn ideas into reproducible, production-ready code.
• Excellent communication skills and a collaborative, problem-solving mindset.

By applying to this role you understand that we may collect your personal data and store and process it on our systems. For more information please see our Privacy Notice