Machine Learning Engineer (LLM)
Location
Madrid, Spain
Work type
Hybrid
Employment
Full Time
Experience
2+ years
Compensation
Compensation not disclosed
Posted
1h ago
Summary and responsibilities
Role overview
Summary
We are seeking a skilled Machine Learning Engineer with expertise in Large Language Models to design, implement, and optimize LLMs using cutting-edge quantum and AI technologies. This role involves building LLM-based applications, conducting performance evaluations, and collaborating with cross-functional teams to integrate models into products.
Job Overview
We are seeking a skilled and experienced Machine Learning Engineer with a strong background in Large Language Models to join our team. In this role you will have the opportunity to leverage cutting-edge quantum and AI technologies to lead the design, implementation, and improvement of our language models, as well as working closely with cross-functional teams to integrate these models into our products. You will have the opportunity to work on challenging projects, contribute to cutting-edge research, and shape the future of LLM and NLP technologies.
As a Machine Learning Engineer, you will
Design and develop new techniques to compress Large Language Models based on quantum-inspired technologies to solve challenging use cases in various domains.
Conduct rigorous evaluations and benchmarks of model performance, identifying areas for improvement, and fine-tuning and optimising LLMs for enhanced accuracy, robustness, and efficiency.
Build LLM based applications such as RAG and AI agents.
Use your expertise to assess the strengths and weaknesses of models, propose enhancements, and develop novel solutions to improve performance and efficiency.
Act as a domain expert in the field of LLMs, understanding domain-specific problems and identifying opportunities for quantum AI-driven innovation.
Design, train and deliver custom deep learning models for our clients
Work in diverse areas beyond LLM, e.g., computer vision.
Maintain comprehensive documentation of LLM development processes, experiments, and results.
Share your knowledge and expertise with the team to foster a culture of continuous learning, guiding junior members of the team in their technical growth and helping them develop their skills in LLM development.
Participate in code reviews and provide constructive feedback to team members.
Stay up to date with the latest advancements and emerging trends in LLMs and recommend new tools and technologies as appropriate.
Required minimum Qualifications:
Bachelor's, Master's or Ph.D. in Artificial Intelligence, Computer Science, Data Science, or related fields.
2+ years of hands-on experience with designing, training or fine-tuning deep learning models, preferably working with transformer or computer vision models.
2+ year of hands-on experience using transformer models, with excellent command of libraries such as HuggingFace Transformers, Accelerate, Datasets, etc.
Solid mathematical foundations and theoretical understanding of deep learning algorithms and neural networks, both training and inference.
Excellent problem-solving, debugging, performance analysis, test design, and documentation skills.
Strong understanding with the fundamentals of GPU architectures and and LLM hardware/ software infrastructures.
Excellent programming skills in Python and experience with relevant libraries (PyTorch, HuggingFace, etc.).
Experience with cloud platforms (ideally AWS), containerization technologies (Docker) and with deploying AI solutions in a cloud environment
Excellent written and verbal communication skills, with the ability to work collaboratively in a fast-paced team environment and communicate complex ideas effectively.
Previous research publications in deep learning or any tech field is a plus
Preferred Qualifications:
Spanish Language skills
Experience running large-scale workloads in high-performance computing (HPC) clusters.
Experience in handling large datasets and ensuring data quality.
Experience with inference and deployment environments (TensorRT, vLLM, etc.).
Experience in accuracy evaluation of LLMs (OpenLLM Leaderboard).
Experience building and evaluating RAG systems.
Experience in building non-LLM deep learning applications, e.g., computer vision, audio or signal processing.
Familiarity with AI ethics and responsible AI practices.
Experience in DevOps/MLOps practices in deep learning product development.
Perks and Benefits
Indefinite contract.
Equal pay guaranteed.
Variable performance bonus.
Signing bonus.
We offer work visa sponsorship (If applicable).
Relocation package (if applicable).
Private health insurance.
Eligibility for educational budget according to internal policy.
Hybrid opportunity.
Flexible working hours.
Language classes and discounted lunch options
Working in a high paced environment, working on cutting edge technologies.
Career plan. Opportunity to learn and teach.
Progressive Company. Happy people culture
Updated 1h ago
Candidate fit
Skills and qualifications
Additional skills
Experience
2+ years
How this role is positioned
Role classification
Job domains
Industries
Employment
Full Time
Contract duration
Permanent
Hiring type
Direct
Global hiring
Location specific
Offer details
Compensation and benefits
Compensation
Compensation not disclosed
Benefits and perks
Location, schedule, and role shape
Work setup
Work conditions
Bandwidth profile
Context on the employer
Company snapshot
Company
Multiverse Computing
Team size
Growing team
Location
Madrid, Spain
Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of the 100 most promising AI companies in the world. With 180+ employees and growing, our team is fully multicultural and international. We deliver hyper-efficient software for companies seeking a competitive edge through quantum computing and artificial intelligence.
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Machine Learning Engineer (LLM)
Madrid, Spain • Full Time