ML / AI Jobs in Spain
There are 169 open ML / AI jobs in Spain on freehire right now. 84 of them were posted recently. The skills employers ask for most often are machine-learning, python and ai.
Most requested skills
- machine-learning 82%
- python 72%
- ai 59%
- cloud 49%
- llm 38%
- pytorch 37%
- api 34%
- generative-ai 31%
How the work is done
- Hybrid 56 · 33%
- Remote 56 · 33%
- Onsite 10 · 6%
Visa sponsorship offered in 60% of the 15 postings that state a position on it.
Seniority
- Senior 53
- Intern 7
- Lead 6
- Junior 3
- Middle 2
- Staff 2
Who is hiring
- 1000+ employees 9
- 51-200 employees 5
- 11-50 employees 4
- 201-500 employees 1
- 501-1000 employees 1
Data & machine learning engineer
Описание: Our company is an end-to-end working capital solutions provider focused on enabling CFOs/Finance teams of SMEs to pay their suppliers and collect from their customers. This includes short-term credit…
Senior Machine Learning Engineer, Media Knowledge
Do you want to help Apple deeply understand the music, shows, podcasts, and artists our customers love? Our team builds the intelligence behind Apple’s media experiences. We combine speech, language, vision, and…
Remote Senior ML Engineer — AI Models & Data Workflows
Senior machine-learning engineer at Talantir who designs, trains and deploys ML models tackling NLP, computer vision or recommendation-system challenges, collaborating with product and engineering. Core stack: Python with TensorFlow/PyTorch/Scikit-learn plus big-data experience with Spark/Hadoop.
Remote AWS DevOps Engineer: Kubernetes, CI/CD & AI/ML Ops
A contract DevOps engineer (7+ years experience) working remotely for a client in Barcelona via global consulting firm Exalto, focusing on AWS cloud operations for large-scale platforms. Core stack: AWS, Kubernetes and CI/CD tools, with AI/ML Ops in the title. Initial 6-month engagement paid on a daily rate.

Senior ML Engineer | Kimchi (Inference Stack Optimization)
Senior ML engineer optimizing the Kimchi LLM inference stack inside Cast AI — improving throughput, latency, cold starts, and cost per token across a self-run GPU fleet. Day-to-day work spans SGLang/vLLM/TensorRT-LLM engine tuning, KV-cache strategy, weight loading, quantization, and multi-node distributed inference on Python, CUDA, and Kubernetes.

Senior Applied ML Engineer | Kimchi (Model Router)
Own the ML model inside Cast AI's Kimchi Auto Router, which predicts quality, cost, and decode speed to decide which LLM serves each request. You'll own training data, objectives, production-parity evaluation, and online A/B loops, working in Python, PyTorch, ClickHouse, and OpenAI/Anthropic-compatible LLM APIs.
Senior ML Engineer
Product Madness owns the mobile gaming industry by developing engaging, ground-breaking gaming experiences. We value data’s role in improving player experiences and guiding strategic business decisions. Join our…
ML Engineer
Join Aristocrat, a leading force in the mobile gaming industry, where innovation meets passion! We are dedicated to crafting outstanding gaming experiences and using data to drive strategic business decisions. By…
28628 - Consultor/a Estratégico/a en Inteligencia Artificial
Descripción Ingeniería y consultoría de referencia en el ámbito de la movilidad sostenible y la transformación digital Ineco lleva 55 años diseñando soluciones integrales, innovadoras y tecnológicas que han permitido…
Explosives & Energetic Materials Expert for AI Safety Audit | Remote - Full Time
Type: full_time Location: remote Interview: Required Interview language: English About this role Description We are hiring explosives and energetic materials professionals to audit how AI models respond to sensitive…
Internship - Machine Learning Research (recurrent models | generative models | interpretability)
Play a part in the next revolution of machine learning research. Explore new methods, challenge existing metrics or protocols, develop new insightful theories that will change the way we understand machine learning.…
Founding ML Engineer (Spectrum)
Build and own the ML/LLM stack for Spectrum, JetBrains’ AI-powered semantic layer that extracts, organizes, and reasons over code, docs, and issues to keep software systems aligned.
Beca de Tecnología en Digitalización avanzada de procesos alimentarios basada en integración de datos, modelización e inteligencia artificial
AZTI IKERTALENT 2026 ¡Únete a AZTI y forma parte de nuestro equipo para transformar el futuro! Somos un centro de investigación aplicada especializados en el sector marino, y alimentación sostenible. En AZTI somos…
Applied AI & Machine Learning Engineer
At SPD Technology, we bring together a team of like-minded people who are driven by the desire to bring value through their work, united in their commitment to high performance and delivering custom, cutting-edge tech…
Remote Senior ML Engineer — AI Models & Data Workflows
Senior ML engineer at Talantir who designs, trains, and deploys machine-learning models for NLP, computer vision, or recommendation-system challenges, collaborating with product and engineering. Core stack is Python with TensorFlow/PyTorch/Scikit-learn plus Spark/Hadoop for big-data work.
Data / Ml Engineer (Freelance).Inglés
Freelance Data/ML Engineer in Madrid who maintains production solutions, handles BAU work, onboards clients and resolves incidents. Core requirements are Python, cloud experience and problem solving, with English indicated in the title.
Computer vision engineer
Req ID:526347 At Alstom, we build what millions depend on daily - rail transportation systems that can’t afford to fail. We’re more than 85 000 people worldwide creating the industry’s most diverse portfolio:…