Senior Machine Learning Engineer

Empresa Confidencial; Barcelona; Híbrido; EUR 50.000 - 70.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive salary

Flexible working hours

Learning and development opportunities

International work environment

Descripción de la vacante

Empresa Confidencial in Barcelona is seeking a Senior Machine Learning Engineer to design and maintain machine learning models for educational platforms used by millions. Ideal candidates will have over 5 years of relevant experience, be proficient in Python, and have a strong background in deep learning frameworks such as PyTorch or TensorFlow. The position offers competitive salary, flexible hours, and opportunities for learning and development in a collaborative international environment.

Formación

• 5+ years of experience in Machine Learning, Data Science, or similar roles.
• Experience working with machine learning solutions in production environments.
• Fluency in Spanish and English.

Responsabilidades

• Design, develop, and maintain machine learning models integrated into products.
• Collaborate closely with Product and Engineering teams to understand user behavior.
• Contribute to the deployment of models into production and monitor performance.

Conocimientos

Machine Learning

Data Science

Deep Learning

Python

RESTful APIs

Cloud Platforms

Analytical Skills

Communication

Educación

Bachelor’s or Master’s degree in Engineering, Mathematics, Data Science, or related field

Herramientas

PyTorch

TensorFlow

Hugging Face

AWS

Azure

Google Cloud

Descripción del empleo

If you are passionate about building and scaling machine learning solutions in real-world products, and you’re excited about applying AI to improve learning experiences, keep reading. Our client is a growing international technology company that develops software solutions integrated into major learning platforms (LMS) and used by millions of users worldwide.

This is a great opportunity to join them as a Senior Machine Learning Engineer and contribute to the evolution of intelligent features within their product ecosystem.

WHAT WILL YOU DO?

• Design, develop, and maintain machine learning models integrated into products used in educational and LMS environments.
• Maintain and improve existing ML-based solutions, while designing and implementing new ones aligned with product and user needs.
• Develop, train, and evaluate deep learning algorithms to enhance user experience, content interaction, and learning outcomes.
• Collaborate closely with Product and Engineering teams to understand user behavior and business requirements, translating them into scalable ML solutions.
• Define and implement metrics to measure the performance and impact of ML features in real product usage.
• Contribute to the deployment of models into production and monitor their performance in real-world environments.
• Run experiments and iterate on models to continuously improve accuracy, performance, and user impact.
• Document progress and communicate results clearly to both technical and non-technical stakeholders.

WHAT WILL MAKE YOU SUCCEED IN THIS POSITION?

• Bachelor’s or Master’s degree in Engineer, Mathematics, Data Science, or a related field.
• 5+ years of experience in Machine Learning, Data Science, or similar roles.
• Experience working with machine learning solutions in production environments (beyond research).
• Strong ability to connect machine learning solutions with real user and product impact.
• Experience collaborating in product-driven environments, ideally with cross-functional teams.
• Fluency in Spanish and English.

TECHNICAL SKILLS

• Strong experience with deep learning frameworks such as PyTorch, TensorFlow, Hugging Face, or similar.
• Solid Python programming skills, with experience building and maintaining ML pipelines.
• Understanding of RESTful APIs and integration of ML models into software products.
• Experience with cloud platforms such as AWS, Azure, or Google Cloud.
• Experience or exposure to model deployment and monitoring in production environments.

SOFT SKILLS

• Strong analytical and problem-solving mindset.
• Curiosity and interest in applying machine learning to real-world user problems.
• Ability to communicate complex ideas clearly across technical and non-technical teams.
• Proactive attitude and ownership of end-to-end solutions.
• Collaborative mindset, working effectively across Product and Engineering teams.

NICE TO HAVE

• Experience working with LMS platforms or educational technologies.
• Experience in NLP, symbolic systems, or structured data (especially math-related).
• Exposure to MLOps practices.
• Familiarity with Agile methodologies.

WHAT DO WE OFFER YOU?

• Competitive salary aligned with experience.
• Flexible working hours and hybrid work environment.
• Learning and development opportunities.
• International and collaborative work environment.