Machine Learning Engineer Jobs in Barcelona

Machine Learning Engineer jobs in Barcelona hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $202,319/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Barcelona
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

Aristocrat Leisure

aristocrat.com
Aristocrat Leisure is an Australian gambling technology and entertainment company that stands as one of the world's largest manufacturers of slot machines and electronic gaming systems. Founded in 1953 and headquartered in Sydney, the enterprise designs, manufactures, and distributes land-based gaming hardware, casino management software, and mobile social casino games. By continually expanding its global footprint across North America, Europe, and Asia-Pacific, it delivers interactive gaming content and digital solutions to regulated operators worldwide.
aristocrat.com • HQ: Sydney, Australia • Mobile Games • Gaming • iGaming & Gambling • 501-1000 employees
HQ: Sydney, Australia • Mobile Games • Gaming • iGaming & Gambling • 501-1000 employees
Verified live · 2 hours ago 2 months ago

ML Engineer

$45k – $113k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (Barcelona, Spain) • Full-Time • Senior
Python
SQL
AI/ML
CrewAI
LangChain
RAG
Streamlit
AI Agents
DevOps
AWS
Azure
Docker
GCP
Apply
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Plain Concepts

plainconcepts.com
Plain Concepts is a technology company that provides a range of services to businesses, including software development, consulting, and training. The company has a team of experienced professionals who are committed to delivering high-quality solutions. Plain Concepts has a strong reputation for its expertise in various technologies, and it has worked with a wide range of clients across different industries.
plainconcepts.com • HQ: Barcelona, Spain • Artificial Intelligence • Information Technology • Software • 201-500 employees
HQ: Barcelona, Spain • Artificial Intelligence • Information Technology • Software • 201-500 employees
Verified live · 1 day ago 2 months ago

AI/ML Engineer (GenAI)

$58k – $118k per year (Estimated) • Senior • 5+ years exp • Remote (Spain) • Full-Time • Senior • Spanish: C1
Python
SQL
AI/ML
Computer Vision
Copilot
NLP
TensorFlow
Recommender Systems
AI Agents
DevOps
Azure
GitHub
CI/CD
gRPC
Apply
2 months ago

AI/ML Engineer (GenAI)

$51k – $128k per year (Estimated) • Senior • 5+ years expSpain • Remote (Spain) • Full-Time • Senior • Spanish: C1
Python
SQL
AI/ML
Computer Vision
Copilot
NLP
TensorFlow
Recommender Systems
AI Agents
DevOps
Azure
GitHub
CI/CD
gRPC
Apply
Verified live · 1 day ago 6 months ago

Senior AI Engineer (Generative AI & MLOps)

$52k – $130k per year (Estimated) • Senior • 7+ years exp • Remote (Spain) • Full-Time • Senior • Spanish: C1
Python
SQL
AI/ML
Computer Vision
Copilot
NLP
PyTorch
TensorFlow
Recommender Systems
AI Agents
DevOps
Azure
GitHub
CI/CD
gRPC
Apply
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Pragmatike

pragmatike.com
Pragmatike is a global remote recruitment and staffing platform that connects companies with top-tier technology professionals. The company specializes in human-curated talent matching, sourcing vetted software developers, product managers, and IT specialists for startups and enterprises worldwide. By streamlining the hiring process and offering flexible, project-based collaboration, it enables organizations to rapidly build and scale their distributed engineering teams.
pragmatike.com • HQ: Hanoi, Vietnam • Information Technology • IT Outsourcing • Professional Services • Human Resources
HQ: Hanoi, Vietnam • Information Technology • IT Outsourcing • Professional Services • Human Resources
Verified live · 3 hours ago 2 months ago

Principal ML Ops Engineer (EMEA Remote)

Lead • 4+ years exp • Remote (Croatia, Czech Republic, Italy, Montenegro, Poland) • Full-Time • Principal
Python
AI/ML
vLLM
TGI
CUDA Toolkit
Kubeflow
MLFlow
ROCm
DevOps
CI/CD
Platform Engineering
Terraform
Cybersecurity
GDPR
Apply
Verified live · 3 hours ago 2 months ago

ML Ops Engineer (EMEA Remote)

Middle • 4+ years exp • Remote (Croatia, Czech Republic, Italy, Montenegro, Poland) • Full-Time • Middle
Python
AI/ML
vLLM
TGI
CUDA Toolkit
Kubeflow
MLFlow
ROCm
DevOps
CI/CD
Platform Engineering
Terraform
Cybersecurity
GDPR
Apply
Verified live · 3 hours ago 2 months ago

AI Infrastructure Engineer (GPU) - Remote EMEA

Middle • 4+ years expDubai • Remote (United Arab Emirates, Bulgaria, Croatia, Czech Republic, Hungary) • Full-Time • Middle
Python
AI/ML
vLLM
TGI
CUDA Toolkit
Kubeflow
MLFlow
ROCm
DevOps
CI/CD
Platform Engineering
Terraform
Cybersecurity
GDPR
Apply
Report

Banco Santander

santander.com
Banco Santander is a prominent multinational financial services company that provides retail, commercial, and investment banking products to millions of customers globally. The institution is recognized as one of the largest banking groups in the world, maintaining a dominant market presence throughout Europe and the Americas. Headquartered in Madrid, Spain, the global bank operates an extensive network of branches and subsidiaries to deliver tailored financial solutions to its diverse international client base.
santander.com • HQ: Madrid, Spain • Events & Ticketing • Corporate Events • Artificial Intelligence • Credit Cards • Financial Services • Banking • 1001-5000 employees
HQ: Madrid, Spain • Events & Ticketing • Corporate Events • Artificial Intelligence • Credit Cards • Financial Services • Banking • 1001-5000 employees
Verified live · 3 hours ago 2 months ago

Tech Lead AI Conversational Agents

$57k – $137k per year (Estimated) • Lead • 5+ years expMadrid • Remote (Spain) • Full-Time • Staff • Spanish: C1
JavaScript
Python
SQL
TypeScript
AI/ML
Embeddings
LLM
NLP
RAG
LLM Guardrails
LLMOps
DevOps
AWS
Azure
CI/CD
GCP
Git
Cybersecurity
GDPR
Management
Confluence
Jira
QA
Postman
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Zapier

zapier.com
Build and scale AI workflows and agents across 9,000+ apps with Zapier—the most connected AI orchestration platform. Trusted by 3 million+ businesses.
zapier.com • Artificial Intelligence • Data Integration • Business Process Automation (BPA) • Est. 2011
Artificial Intelligence • Data Integration • Business Process Automation (BPA) • Est. 2011
Verified live · 1 day ago 3 months ago

Engineer, Applied AI

Middle • 4+ years exp • Remote (AMER, EMEA) • Full-Time • Middle
Python
TypeScript
AI/ML
ChatGPT
Claude
Gemini
LLM
LLMOps
DevOps
Platform Engineering
Management
Zapier
Apply
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Kestra

kestra.ai
kestra.ai • HQ: Paris, France
HQ: Paris, France
Verified live · 2 days ago 3 months ago

Senior Backend Engineer, AI Orchestration

$82k – $206k per year (Estimated) • Senior • Remote (Europe) • Full-Time • Senior
Java
Python
TypeScript
JavaScript
Java
Micronaut
Databases
Apache Kafka
ElasticSearch
MySQL
PostgreSQL
AI/ML
AI Agents
LangChain
LLM
Hugging Face
Frontend
Bootstrap
Vue.js
DevOps
AWS
Azure
Datadog
Docker
GCP
Kubernetes
Terraform
GitHub
Apply
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TP

tp.com
We are TP Group. You've been calling us Teleperformance for almost 47 years. But in the AI era, the world has changed, and we had to change too to keep leading the digital business services market. We're sharper, more modern, and even more empathetic.
tp.com • Mumbai • Madrid • Barcelona • Salamanca • Almería • Cybersecurity • Artificial Intelligence • Financial Services • Professional Services • Information Technology • Technical Support
Mumbai • Madrid • Barcelona • Salamanca • Almería • Cybersecurity • Artificial Intelligence • Financial Services • Professional Services • Information Technology • Technical Support
Verified live · 5 min ago 3 months ago

Senior Team Leader - AI Platform

$59k – $140k per year (Estimated) • Lead • In office (Barcelona, Spain) • Full-Time • Senior • English
Apply
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Hivemq

hivemq.com
The real-time Industrial Data Platform powering Agentic AI. Built on MQTT to connect, contextualize, and analyze AI-ready data from edge to cloud.
hivemq.com • AI Agents • IoT Connectivity • Internet of Things
AI Agents • IoT Connectivity • Internet of Things
$67k – $128k per year • Senior • 5+ years exp • Remote (Germany, United Kingdom, Spain) • Full-Time • Senior
Node JS
TypeScript
JavaScript
Node JS
Fastify
Databases
DynamoDB
AI/ML
LLM
LLM Guardrails
AI Agents
Frontend
React.js
DevOps
AWS
AWS Lambda
Self-Healing
Cybersecurity
TheHive
IoT
MQTT
Apply
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Starbridge

starbridge.com
starbridge.com • New York • Artificial Intelligence • Government
New York • Artificial Intelligence • Government
Verified live · 22 min ago 3 months ago

AI Engineer | EMEA/LATAM

$120k – $140k per year • Senior • 5+ years exp • Remote (LATAM, EMEA) • Bachelor's Degree • Full-Time • Senior
Python
Kotlin
AI/ML
Gemini
LLM
MLFlow
Weights & Biases
LangChain
Anthropic
OpenAI
LangGraph
LiteLLM
RAG
DevOps
CI/CD
Apply
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Tether

tether.to
Tether is a digital asset company founded in 2014 that issues USDT, the largest stablecoin in circulation and the most heavily traded asset in crypto markets. Each token is intended to hold a one-to-one peg with the United States dollar and is backed by a reserve portfolio dominated by short-dated Treasury bills, with regular attestation reports published on the reserve composition. Headquartered in San Salvador, El Salvador, the group has expanded beyond stablecoin issuance into gold-backed tokens, Bitcoin mining, energy, peer-to-peer communications and local artificial intelligence infrastructure.
tether.to • HQ: San Salvador, El Salvador • Crypto Payments • Data Centers • Artificial Intelligence • Blockchain & Crypto • Cryptocurrencies • Stablecoins • 1001-5000 employees • Est. 2014
HQ: San Salvador, El Salvador • Crypto Payments • Data Centers • Artificial Intelligence • Blockchain & Crypto • Cryptocurrencies • Stablecoins • 1001-5000 employees • Est. 2014
Verified live · 1 day ago 3 months ago

AI Research Engineer (Pre-training - LLM & Multi-Modal)

$62k – $125k per year (Estimated) • Remote (Spain) • English: B2
LLM
Multimodal AI
NLP
PyTorch
Tokenization
Hugging Face
Pre-training
Web3
Bitcoin
Apply
Verified live · 1 day ago 4 months ago

AI Research Engineer (Model Compression & Quantization)

$63k – $127k per year (Estimated) • Remote (Spain) • English: B2
C++
C++
PyTorch C++
AI/ML
Fine-tuning
Knowledge Distillation
Multimodal AI
NLP
PyTorch
Quantization
Tokenization
Post-training
Web3
Bitcoin
Apply
Report

Omilia

omilia.com
A visionary combination of technology and art that started from a small garage in 2002, Omilia is now home to solution architects, engineers, developers, linguists, and individuals who share one goal - to deliver unfeigned human experience through...
omilia.com • HQ: Athens, Greece • Speech & Audio AI • Artificial Intelligence • Conversational AI
HQ: Athens, Greece • Speech & Audio AI • Artificial Intelligence • Conversational AI
Verified live · 1 day ago 3 months ago

Senior Conversational AI Delivery Engineer

Senior • 5+ years exp • Remote (United Kingdom, Spain, Greece, Portugal) • Senior
Node JS
Python
JavaScript
AI/ML
Claude
Embeddings
Gemini
LLM
Prompt Engineering
RAG
OpenAI
AI Agents
Speech Recognition
Apply
Open 137 daysVerified live · 1 day ago 5 months ago

Text & Reasoning LLM / NLU Tech Lead

Lead • Remote (France, Italy, Poland, Spain, Greece) • Full-Time • Staff
Python
AI/ML
LLM
NLP
PyTorch
TensorFlow
Hugging Face
Apply
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AILY LABS

ailylabs.com
AILY LABS is a software company focused on helping large organisations make better use of their data and operational knowledge through AI-driven applications. From its positioning, the company’s work centres on bringing analytics and machine learning into everyday decision making, so that teams can move from static reporting to more guided, actionable insights. In practice, this typically means building platforms and applications that connect to enterprise systems, interpret complex information, and support people in making faster, more consistent decisions across areas like operations, finance, and customer-facing functions.
ailylabs.com • HQ: Munich, Germany • Biotechnology • Decision Intelligence • Artificial Intelligence • 201-500 employees
HQ: Munich, Germany • Biotechnology • Decision Intelligence • Artificial Intelligence • 201-500 employees
Verified live · 4 hours ago 3 months ago

AI Engineer

$59k – $119k per year (Estimated)Remote/Hybrid (Barcelona, Spain) • Full-Time
Python
SQL
Python
FastAPI
AI/ML
AI Agents
CrewAI
LangChain
LlamaIndex
LLM
DevOps
AWS
Azure
Docker
GCP
Kubernetes
Rest API
Apply
Verified live · 4 hours ago 6 months ago

Senior/ Lead - AI Research Engineer – Agents Team - MAD/BCN/ MUN

$60k – $143k per year (Estimated) • Lead • Remote/Hybrid (Barcelona, Spain) • Master's Degree • Full-Time • Staff
Python
SQL
AI/ML
Fine-tuning
Knowledge Graph
AI Agents
DevOps
Docker
Apply
Report

Hugging Face

huggingface.co
Hugging Face is an American company, founded in 2016 and headquartered in New York, that runs the largest open platform for sharing machine learning models, datasets and demonstration applications. Its Hub hosts more than a million public models and is often described as the GitHub of machine learning, while its open-source libraries such as Transformers, Diffusers and Datasets are standard tools in research and production pipelines. The company earns revenue from paid Hub features, managed inference endpoints and enterprise deployments, and works with cloud and chip vendors to make open models easy to run anywhere.
huggingface.co • HQ: New York, United States • Software • MLOps • Machine Learning • LLM & Generative AI • Artificial Intelligence • 201-500 employees • Est. 2016
HQ: New York, United States • Software • MLOps • Machine Learning • LLM & Generative AI • Artificial Intelligence • 201-500 employees • Est. 2016
Open 94 daysVerified live · 1 day ago 4 months ago

Open-Source Machine Learning Engineer - EMEA Remote

$69k – $165k per year (Estimated)Paris • Remote (EMEA) • Full-Time
Python
AI/ML
Accelerate
Gradio
JAX
PyTorch
TensorFlow
Transformers
vLLM
Hugging Face
Fine-tuning
DevOps
GitHub
Management
Slack
Apply
Report

KION Group

kiongroup.com
KION Group is a Frankfurt company that owns the Linde and STILL forklift brands and the Dematic automation business. Its supply chain solutions arm builds automated warehouses and the software that runs them for retailers and manufacturers. The group is one of the biggest industrial trucks and automation companies in the world.
kiongroup.com • HQ: Frankfurt am Main, Germany • Artificial Intelligence • Transportation & Logistics • Supply Chain • 5000+ employees • Est. 2006
HQ: Frankfurt am Main, Germany • Artificial Intelligence • Transportation & Logistics • Supply Chain • 5000+ employees • Est. 2006
Open 96 days 4 months ago

AI Engineer

$38k – $104k per year (Estimated) • Middle • 3+ years expIn office (Barcelona, Spain) • Full-Time • Middle • English: C1
Python
AI/ML
Langfuse
LLM
MLFlow
PyTorch
RAG
Scikit-learn
TensorFlow
AI Agents
Google ADK
DevOps
Azure
CI/CD
GCP
Kubernetes
Apply
Report

Omya

omya.com
Omya is a leading global producer of industrial minerals - mainly fillers and pigments derived from calcium carbonate and dolomite - and a worldwide distributor of specialty chemicals.\r \r The company's major markets are forest products (fiber-base...
omya.com • Cincinnati • Johor Bahru • Barcelona • Kuala Lumpur • Ipoh • Plastics & Polymers • Biotechnology • Industrial Minerals • 501-1000 employees
Cincinnati • Johor Bahru • Barcelona • Kuala Lumpur • Ipoh • Plastics & Polymers • Biotechnology • Industrial Minerals • 501-1000 employees
Open 105 daysVerified live · 2 days ago 4 months ago

AI Lead

$59k – $141k per year (Estimated) • Lead • Remote/Hybrid (Barcelona, Spain) • Full-Time • Staff
Python
Python
FastAPI
Databases
Databricks
AI/ML
Chain-of-Thought
LangChain
LLM
MLFlow
Prompt Engineering
RAG
Semantic Kernel
EU AI Act
Feature Store
OpenAI
Structured Outputs
DevOps
Azure
Vector
Apply
Report

Huzzle

huzzle.app
Huzzle is an early careers platform connecting students, societies, and employers. Starting out as a CRM for pre-professional student societies, Huzzle has evolved into the university career companion used by over 100,000 talents in the UK.
huzzle.app • HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
Open 108 daysVerified live · 1 day ago 4 months ago

AI Engineer

$63k – $108k per year (Estimated) • Junior • 2+ years exp • Remote (Bulgaria, Poland, Romania, Spain, Portugal) • Full-Time • Junior
Python
SQL
AI/ML
Claude
Embeddings
Gemini
LangChain
LLM
Prompt Engineering
PyTorch
RAG
TensorFlow
Hugging Face
OpenAI
Computer Vision
NLP
Edge AI
DevOps
AWS
Azure
Docker
GCP
Kubernetes
GitHub
Apply
Open 139 daysVerified live · 1 day ago 5 months ago

AI Automation Engineer

$97k – $203k per year (Estimated) • Junior • 2+ years exp • Remote (United States, United Kingdom, Australia, Bulgaria, Canada) • Full-Time • Junior
JavaScript
Python
AI/ML
Claude
Anthropic
Hugging Face
OpenAI
DevOps
Rest API
Management
Make.com
n8n
Zapier
Marketing
HubSpot
Salesforce
Apply
Report

Cint

cint.com
Cint is a global software company headquartered in Stockholm, Sweden, and was founded in 1998. The company operates a digital insights platform that automates the market research process by connecting sample providers with researchers to gather consumer data. Listed on the Nasdaq Stockholm, it maintains a presence in over 15 countries and serves thousands of customers across the market research, advertising, and consulting industries.
cint.com • HQ: Stockholm, Sweden • Analytics Platforms • Business Process Automation (BPA) • Software • Data Collection • Data & Analytics • Sales & Marketing • Market Research • Est. 1998
HQ: Stockholm, Sweden • Analytics Platforms • Business Process Automation (BPA) • Software • Data Collection • Data & Analytics • Sales & Marketing • Market Research • Est. 1998
Open 122 daysVerified live · 7 hours ago 5 months ago

Senior Data Scientist (AI & Synthetic Intelligence)

$52k – $132k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (Barcelona, Spain) • Master's Degree • Full-Time • Senior
Python
SQL
Python
pySpark
Databases
Databricks
AI/ML
Data Augmentation
Fine-tuning
LLM
Synthetic Data
Prompt Engineering
RAG
Spark
Apply
Report

TRM Labs

trmlabs.com
TRM Labs is a blockchain intelligence and financial crime prevention platform headquartered in San Francisco, California. The company provides law enforcement agencies, government bodies, regulatory organizations, and financial institutions with tools to monitor, detect, and investigate illicit cryptocurrency transactions and digital asset fraud.
trmlabs.com • HQ: San Francisco, United States • Cybersecurity • Blockchain & Crypto • Blockchain Analytics
HQ: San Francisco, United States • Cybersecurity • Blockchain & Crypto • Blockchain Analytics
Verified live · 2 hours ago 5 months ago

Senior AI Engineer (AI Automation) - LATAM

Senior • 6+ years expSão Paulo • Remote (LATAM, EEA, Europe, South America) • Full-Time • Senior
JavaScript
Python
TypeScript
Databases
pgvector
Pinecone
PostgreSQL
Redis
AI/ML
DeepEval
Langfuse
LangSmith
Anthropic
OpenAI
AI Agents
Frontend
React.js
Web3
TRM Labs
Management
Slack
n8n
Apply
Report

Lodgify

lodgify.com
Lodgify is a comprehensive vacation rental property management software company that helps property owners and managers streamline their operations. It offers features such as a reservation system, unified inbox, guest management, task management, automation, reporting and analytics, and owner statements. Lodgify supports integrations with major booking platforms like Airbnb, Booking.
lodgify.com • Barcelona • Hotels & Resorts • Travel & Tourism • Vacation Rentals
Barcelona • Hotels & Resorts • Travel & Tourism • Vacation Rentals
Open 143 daysVerified live · 10 hours ago 5 months ago

Senior AI Engineer

$51k – $128k per year (Estimated) • Senior • 5+ years expBarcelona • Remote (Spain) • Full-Time • Senior
Python
SQL
AI/ML
LLM
Prompt Engineering
RAG
Fine-tuning
Mobile
Dependency Injection
Apply
Report

Joko

hellojoko.com
Joko is a consumer shopping application company headquartered in Paris, France, and founded in 2018. The company operates a mobile app and browser extension that gives shoppers automatic cashback, discount codes, and price tracking when they buy from partner retailers. It earns affiliate commission on the purchases it drives, has expanded from France into the United States, and is backed by European venture investors.
hellojoko.com • HQ: Paris, France • E-commerce Marketing • Sales & Marketing • Software • Personal Finance • Financial Services • Mobile App Development • Commerce • Coupons, Deals & Cashbacks • 51-200 employees • Est. 2018
HQ: Paris, France • E-commerce Marketing • Sales & Marketing • Software • Personal Finance • Financial Services • Mobile App Development • Commerce • Coupons, Deals & Cashbacks • 51-200 employees • Est. 2018
Verified live · 6 hours ago 6 months ago

AI Software Engineer (senior/staff level)

$89k – $203k per year • Staff+ • 5+ years expParisBarcelona • Remote (United States, France, Italy, Spain) • Full-Time • Staff • English: C1
Fine-tuning
LangChain
Langfuse
LangGraph
LLM
AI Agents
DevOps
Vector
Apply
Report
Machine Learning Engineer Jobs in Barcelona
Frequently asked questions
How many Machine Learning Engineer jobs in Barcelona are available on Alion?
There are currently 22 active listings from 18 hiring companies on Alion, refreshed daily.
What salary do Machine Learning Engineer jobs in Barcelona pay?
The average salary is around $202,319 per year based on the current listings.
Are remote options available for Machine Learning Engineer jobs in Barcelona?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Machine Learning Engineer jobs in Barcelona?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.