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 $140,628/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Barcelona
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science

Aristocrat Leisure

aristocrat.com
aristocrat.com · HQ: Sydney, Australia · iGaming & Gambling · Mobile Games · 5000+ employees · Est. 1953 · Trust A · Hiring 182, 10 new
HQ: Sydney, Australia · iGaming & Gambling · Mobile Games · 5000+ employees · Est. 1953 · Trust A · Hiring 182, 10 new
Aristocrat Leisure is an Australian gaming company founded in 1953 that designs and manufactures slot machines for casinos and has become one of the largest mobile game publishers in the world. Its land-based business supplies cabinets, game content and systems to casino operators across North America, Australia and Asia, while Pixel United publishes free-to-play social casino and casual mobile titles, and a separate online real money gaming division was built through the Anaxi brand and the NeoGames acquisition. Headquartered in Sydney and listed on the Australian exchange, it derives the majority of revenue from North America.
Julie Cameron-Doc · Executive Officer · decision-maker
Julie Cameron-Doe · Executive Officer · decision-maker
Trevor Croker · Chief Executive Officer and Managing Director · decision-maker
Len Ainsworth · Founder · founder
Careers mailbox is known
Open 104 daysVerified live · 2 hours ago 3 months ago Long shot · 7%

MLOps Engineer

≈ $63k – $131k per year (Estimated) · Hybrid (Barcelona, Spain) · PhD · Full-Time
Python
Databases
Snowflake
AI/ML
Weights & Biases
MLFlow
Prefect
BentoML
Kubeflow
KServe
Triton
Machine Learning
LLM
DevOps
Prometheus
Grafana
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
AIOps
+12
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Fluendo

fluendo.com
fluendo.com · Barcelona · Custom Software Development · 11-50 employees · Est. 2005 · Hiring 1
Barcelona · Custom Software Development · 11-50 employees · Est. 2005 · Hiring 1
Fluendo is a multimedia company driven by top multimedia experts. We create smart multimedia solutions for any framework to make your video pipelines shine.
No named decision-maker yet.
Careers mailbox is known
Open 104 daysVerified live · 1 hour ago 3 months ago Long shot · 3%

Model AI Engineer

Middle · 3+ years exp · Barcelona · Remote (likely Spain) · Bachelor's Degree · Contractor · Middle · Spanish · English
SQL
Python
AI/ML
OpenCV
MLFlow
Optuna
ONNX
Albumentations
Transformers
Ray Tune
Hugging Face
TensorFlow
PyTorch
Ray
DevOps
GitLab CI
Gitflow
Amazon S3
GitHub Actions
Docker
CI/CD
AWS
Git
Robotics
GStreamer
QA
Pytest
+15
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Report

MKS PAMP

mkspamp.com
mkspamp.com · Kuala Lumpur · Barcelona · New York · Wholesale · Precious Metals · 11-50 employees · Est. 2022 · Trust B · Hiring 14
Kuala Lumpur · Barcelona · New York · Wholesale · Precious Metals · 11-50 employees · Est. 2022 · Trust B · Hiring 14
MKS PAMP is the primary company in the MKS PAMP GROUP , providing financial and physical trading services globally and operating a state-of-the-art precious metals refinery in Switzerland. 1 Who We Are Our core business is sourcing, supplying, refining and trading precious metals products.
No named decision-maker yet.
Careers mailbox is known
Open 104 daysVerified live · 4 hours ago 3 months ago Long shot · 5%

Agentic AI Implementation Lead

≈ $66k – $165k per year (Estimated) · Lead · In office (Barcelona, Spain) · Full-Time · Staff · English
Human-in-the-Loop
LLM Guardrails
AI Agents
Apply

sennder

sennder.com
sennder.com · HQ: Berlin, Germany · Freight Forwarding · Road Transport · 201-500 employees · Est. 2015 · Trust B · Hiring 27, 1 new
HQ: Berlin, Germany · Freight Forwarding · Road Transport · 201-500 employees · Est. 2015 · Trust B · Hiring 27, 1 new
sennder is a Berlin company founded in 2015 that operates a digital road freight platform across Europe. It connects large shippers with thousands of small trucking companies and manages the transport digitally end to end. The company is one of the largest digital freight forwarders on the continent.
No named decision-maker yet.
Careers mailbox is known
Verified live · 21 min ago 3 months ago Long shot · 24%

Machine Learning Engineer

≈ $59k – $122k per year (Estimated) · Senior · 5+ years exp · In office (Barcelona, Spain) · Full-Time · Senior
SQL
Python
Databases
Snowflake
AI/ML
Streamlit
Recommender Systems
LLM
Machine Learning
AI Agents
DevOps
Git
Analytics
Power BI
+2
Apply

Lab House

labhouse.io
labhouse.io · HQ: Barcelona, Spain · Custom Software Development · Likely startup · Trust B · Hiring 17
HQ: Barcelona, Spain · Custom Software Development · Likely startup · Trust B · Hiring 17
Labhouse is a small, talented studio based in Barcelona crafting category-defining AI-powered mobile apps. 100M+ downloads across 50 countries worldwide and growing.
No named decision-maker yet.
No careers mailbox known
Verified live · 3 hours ago 3 months ago Long shot · 21%

AI Engineer Tools & Automations

≈ $48k – $120k per year (Estimated) · Hybrid (Barcelona, Spain) · Bachelor's Degree · Full-Time
Python
AI/ML
LLM
LlamaIndex
Fine-tuning
CrewAI
LangChain
RAG
Management
n8n
Zapier
+1
Apply
Verified live · 3 hours ago 4 months ago Long shot · 13%

AI Engineer

≈ $47k – $119k per year (Estimated) · Hybrid (Barcelona, Spain) · Master's Degree · Full-Time
Python
AI/ML
Fine-tuning
JAX
Transformers
Hugging Face
PyTorch
Machine Learning
Quantization
Multimodal AI
Knowledge Distillation
NLP
ONNX
Edge AI
Model Distillation
DevOps
GitHub
+7
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Antai Ventures

antaiventures.com
antaiventures.com · Barcelona · Angel Networks & Startup Accelerators · Venture Capital · 1001-5000 employees · Est. 2012 · Hiring 3
Barcelona · Angel Networks & Startup Accelerators · Venture Capital · 1001-5000 employees · Est. 2012 · Hiring 3
We back incredible people and help them build disrupting products with the potential of changing the lives of millions.
No named decision-maker yet.
Careers mailbox is known
Open 134 daysVerified live · 4 hours ago 4 months ago Long shot · 10%

Senior Full-Stack Engineer - Stealth Company - Founding Engineer - Vertical AI

$56k – $78k per year · Senior · Hybrid (Barcelona, Spain) · Full-Time · Senior · English: C1
Node JS
TypeScript
JavaScript
SQL
Node JS
Prisma
Databases
PostgreSQL
AI/ML
AI Agents
Function Calling
Agentic Workflows
Cursor
Claude Code
RAG
Frontend
Vue.js
Mobile
Capacitor
Offline-First
DevOps
GCP
CI/CD
AWS
+10
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Prosper AI

getprosper.ai
getprosper.ai · HQ: New York, United States · Revenue Cycle & Medical Billing · Patient Access & Booking · Medical AI · 51-200 employees · Est. 2024 · Startup · Trust B · Hiring 13, 2 new
HQ: New York, United States · Revenue Cycle & Medical Billing · Patient Access & Booking · Medical AI · 51-200 employees · Est. 2024 · Startup · Trust B · Hiring 13, 2 new
Prosper AI is the only platform to schedule patients, verify benefits, and process billing in one workflow. 150,000+ providers, $1.7B in care powered.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 2 hours ago 4 months ago Long shot · 6%

Senior AI Engineer

≈ $63k – $132k per year (Estimated) · Senior · 3+ years exp · Hybrid (Barcelona, Spain) · Bachelor's Degree · Full-Time · Senior
TypeScript
JavaScript
Python
Python
FastAPI
Databases
PostgreSQL
AI/ML
Voice Agents
LLM
AI Agents
Frontend
React.js
+1
Apply
Likely inactiveVerified live · 2 hours ago 6 months ago Long shot · 4%

AI Product Manager

≈ $56k – $129k per year (Estimated) · In office (Barcelona, Spain) · Bachelor's Degree · Full-Time
AI Agents
Computer Vision
DevOps
GitHub
Design
Figma
Management
Notion
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Novicap

novicap.com
novicap.com · HQ: London, United Kingdom · Business & SME Lending · Factoring & Trade Finance · 51-200 employees · Startup · Trust B · Hiring 6
HQ: London, United Kingdom · Business & SME Lending · Factoring & Trade Finance · 51-200 employees · Startup · Trust B · Hiring 6
Novicap is a Spanish fintech company that offers financing and working capital optimisation solutions to help businesses grow. Its products cover working capital finance such as factoring and confirming, and it hires risk analysts, data and machine learning engineers and account executives in Madrid and Barcelona. The company is based in Spain.
No named decision-maker yet.
Careers mailbox is known
Open 153 daysVerified live · 1 hour ago 5 months ago Long shot · 6%

Data & Machine Learning Engineer

≈ $44k – $112k per year (Estimated) · Hybrid (Barcelona, Spain) · Full-Time · English
SQL
Python
Python
SQLAlchemy
FastAPI
Pydantic
AI/ML
MLFlow
DevOps
AWS Lambda
Amazon EC2
Amazon S3
IAM
Rest API
Docker
CI/CD
AWS
+6
Apply

STILL

still.at
still.at · HQ: Wiener Neudorf, Austria · Warehousing · Industrial Machinery · 5000+ employees · Trust B · Hiring 885, 83 new
HQ: Wiener Neudorf, Austria · Warehousing · Industrial Machinery · 5000+ employees · Trust B · Hiring 885, 83 new
STILL is a supplier of intralogistics solutions, offering electric forklift trucks, pallet trucks, storage technology and racking systems. The Austrian company hires customer advisers for used equipment sales. The company is headquartered in Wiener Neudorf, Austria.
No named decision-maker yet.
Careers mailbox is known
Reposted ×2Verified live · 3 hours ago 5 months ago Long shot · 24%

AI Engineer

Middle · 3+ years exp · In office (Barcelona, Spain) · Full-Time · Middle · English: C1
Python
AI/ML
MLFlow
Scikit-learn
Langfuse
Google ADK
TensorFlow
PyTorch
RAG
LLM
Machine Learning
AI Agents
DevOps
GCP
Kubernetes
Azure
CI/CD
+7
Apply

Alirahealth

alirahealth.com
alirahealth.com · Paris · San Francisco · London · Munich · Barcelona · Healthcare & Life Sciences Consulting · 1001-5000 employees · Trust B · Hiring 40
Paris · San Francisco · London · Munich · Barcelona · Healthcare & Life Sciences Consulting · 1001-5000 employees · Trust B · Hiring 40
Alira Health is a global healthcare firm whose mission is to humanize healthcare and life sciences in partnership with patients. From development to medical care, we complement the expertise of our Pharma, Biotech, and MedTech clients with a full spectrum of services across their entire solutions lifecycle, including clinical operations, real-world evidence, and patient-centric technology offerings. Our integrated and multidisciplinary team of over 800 scientists, strategists, economists, clinicians, and biostatisticians collaborate across our North American, European, and Asian offices and advise 80% of the top 50 MedTech companies and 75% of the top 50 Pharma companies.
No named decision-maker yet.
No careers mailbox known
Open 176 daysVerified live · 30 min ago 5 months ago Long shot · 6%

Applied AI Consultant Engineer

Junior · 2+ years exp · Hybrid (Barcelona, Spain) · Bachelor's Degree · Full-Time · Junior
SQL
Python
AI/ML
Function Calling
Structured Outputs
Multi-Agent Systems
Prompt Engineering
Model Context Protocol
LLM
AI Agents
Knowledge Graph
RAG
DevOps
Rest API
+4
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Air Apps

airapps.co
airapps.co · HQ: San Francisco, United States · Consumer & Utility Software · Office & Productivity Software · 1001-5000 employees · Est. 2017 · Trust A · Hiring 424
HQ: San Francisco, United States · Consumer & Utility Software · Office & Productivity Software · 1001-5000 employees · Est. 2017 · Trust A · Hiring 424
Founded in 2017, Air Apps is a prominent mobile software developer specializing in AI-driven utility, productivity, and personal management applications. Headquartered in San Francisco, California, United States, the enterprise operates a remote-first global team that designs and manages a broad portfolio of digital tools. Through its bundled subscription model and suite of user-friendly mobile solutions, it provides millions of consumers worldwide with streamlined options for daily organization, translation, and task automation.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 6 months ago Long shot · 14%

AI/ML Engineer

$67k – $85k per year · Middle · 4+ years exp · In office (Barcelona, Spain) · Relocation · Full-Time · Middle
Python
AI/ML
NLP
TensorFlow
Computer Vision
PyTorch
Machine Learning
DevOps
GCP
Azure
AWS
+1
Apply
Verified live · 2 hours ago 6 months ago Long shot · 24%

AI Product Manager, Berlin

$65k – $82k per year · Middle · 4+ years exp · In office (Barcelona, Spain) · Relocation · Full-Time · Middle
NLP
Recommender Systems
Computer Vision
Machine Learning
Apply

Exoticca

exoticca.com
exoticca.com · HQ: Barcelona, Spain · Travel & Tourism · Travel Agencies · Est. 2013 · Trust A · Hiring 35, 3 new
HQ: Barcelona, Spain · Travel & Tourism · Travel Agencies · Est. 2013 · Trust A · Hiring 35, 3 new
Exoticca is an online travel agency that designs, produces and sells long-distance package trips to destinations around the world. Its job openings include travel agents specialised in the Amadeus reservation system, B2B travel advisor support and business development managers for B2B travel. The company is headquartered in Barcelona, Spain.
No named decision-maker yet.
No careers mailbox known
Verified live · 1 hour ago 6 months ago Long shot · 20%

Product Manager - Agent Experience & Customer Operations

≈ $51k – $117k per year (Estimated) · In office (Barcelona, Spain)
Jira
Agile
Apply

Lucis

lucis.life
lucis.life · HQ: Paris, France · Consumer Health Apps · Precision Medicine · Health Care · 51-200 employees · Startup · Trust B · Hiring 10
HQ: Paris, France · Consumer Health Apps · Precision Medicine · Health Care · 51-200 employees · Startup · Trust B · Hiring 10
Lucis is your health companion. 110+ data points, 11 body systems, 450+ labs in Europe. Understand your biology and act on what matters. From €490/year.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 28 min ago 6 months ago Long shot · 5%

AI engineer

≈ $61k – $120k per year (Estimated) · Senior · 8+ years exp · Hybrid (Paris, France, Barcelona, Spain, London, United Kingdom) · Relocation · Full-Time · Staff
Python
Databases
PostgreSQL
AI/ML
Function Calling
PubMed
Multi-Agent Systems
LangChain
RAG
LLM
AI Agents
Cursor
Claude Code
DevOps
GitHub Actions
Terraform
AWS
+6
Apply

Fundamental Studio Ltd.

fundamental.bg
fundamental.bg · HQ: Sofia, Bulgaria · Custom Software Development · UI/UX Design · Est. 2016 · Trust C · Hiring 25, 1 new
HQ: Sofia, Bulgaria · Custom Software Development · UI/UX Design · Est. 2016 · Trust C · Hiring 25, 1 new
Blurring the line between art and technology. Fundamental Studio is a modern digital company, offering different kind of services at your disposal. We are your trustworthy partner.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago 7 months ago Long shot · 4%

Senior Applied Research Engineer

≈ $63k – $131k per year (Estimated) · Senior · In office (Barcelona, Spain) · Relocation · Full-Time · Senior
Python
C++
AI/ML
Quantization
CUDA
Triton
NCCL
PyTorch
Apply
Likely inactiveVerified live · 3 hours ago 12 months ago Long shot · 3%

ML Researcher

≈ $48k – $120k per year (Estimated) · In office (Barcelona, Spain) · Relocation · Bachelor's Degree · Full-Time
Python
AI/ML
Time Series
TPU
Machine Learning
Apply

Lifebit

lifebit.ai
lifebit.ai · HQ: London, United Kingdom · CRO & CDMO Services · Medical AI · 51-200 employees · Startup · Trust B · Hiring 5
HQ: London, United Kingdom · CRO & CDMO Services · Medical AI · 51-200 employees · Startup · Trust B · Hiring 5
Sovereign AI for federated health data. Health discoveries & decisions proven at 275M+ patient scale. Nothing moves. Everything works.
No named decision-maker yet.
Careers mailbox is known
Open 226 daysVerified live · 4 hours ago 7 months ago Long shot · 4%

AI Engineer - Remote (Spain)

Junior · 2+ years exp · In office (Barcelona, Spain) · Bachelor's Degree · Full-Time · Junior
SQL
Python
TypeScript
AI/ML
LangGraph
AutoGen
Function Calling
CrewAI
Human-in-the-Loop
LLM Guardrails
LangChain
RAG
LLM
Machine Learning
AI Agents
Fine-tuning
Scikit-learn
JAX
NLP
Langfuse
TensorFlow
PyTorch
DevOps
Kubernetes
Docker
GCP
Azure
AWS
+18
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Planner 5D

planner5d.com
planner5d.com · HQ: Vilnius, Lithuania · CAD, PLM & BIM Software · Consumer & Utility Software · 201-500 employees · Est. 2011 · Trust A · Hiring 8
HQ: Vilnius, Lithuania · CAD, PLM & BIM Software · Consumer & Utility Software · 201-500 employees · Est. 2011 · Trust A · Hiring 8
Planner 5D is a home and interior design software company whose web, desktop and mobile apps let users draw floor plans, furnish rooms in 3D and view designs in walkthroughs and augmented reality. The tools include a large catalogue of furniture and decor items, AI-assisted layout and design features and options used by hobbyists, students and design professionals. Founded in 2011, the company is headquartered in Vilnius, Lithuania.
No named decision-maker yet.
No careers mailbox known
Verified live · 3 hours ago 7 months ago Long shot · 16%

AI / Machine Learning Researcher

≈ $51k – $106k per year (Estimated) · Middle · 4+ years exp · Hybrid (Warsaw, Poland, Amsterdam, Netherlands, Barcelona, Spain) · Contractor · Middle
Python
AI/ML
SciPy
Multimodal AI
Pandas
NumPy
TensorFlow
Computer Vision
PyTorch
Machine Learning
AI Agents
Fine-tuning
LLM
+4
Apply

Bluetile Games S.L.

bluetile.com
bluetile.com · Barcelona · Gaming · Mobile Games · 11-50 employees · Hiring 1
Barcelona · Gaming · Mobile Games · 11-50 employees · Hiring 1
Bluetile Games - Casual gaming studio creating relaxing games designed to last. Based in Barcelona with 25M+ monthly active users.
No named decision-maker yet.
No careers mailbox known
Open 258 daysVerified live · 2 hours ago 8 months ago Long shot · 7%

Principal Applied Scientist

≈ $63k – $157k per year (Estimated) · Lead · 7+ years exp · In office (Barcelona, Spain) · Relocation · Master's Degree · Full-Time · Principal
SQL
Python
AI/ML
JAX
TensorFlow
PyTorch
DevOps
GCP
Azure
AWS
Analytics
A/B Testing
+1
Apply
Report

Qonto

qonto.com
qonto.com · HQ: Paris, France · Digital Banks & Neobanks · Est. 2016 · Trust A · Hiring 35
HQ: Paris, France · Digital Banks & Neobanks · Est. 2016 · Trust A · Hiring 35
Qonto is a Paris fintech founded in 2016 that provides business bank accounts and financial tools for freelancers and small companies. Its platform combines payments, expense management, invoicing and bookkeeping integrations under a single interface. Holding a French payment institution licence, it serves hundreds of thousands of businesses across Europe.
Alexandre Prot · Directeur Général · decision-maker
Jean-Pascal Beaufret · Président du conseil d’administration · decision-maker
Steve Anavi · Directeur général délégué · decision-maker
Careers mailbox is known
Verified live · 4 hours ago 8 months ago Likely open · 57%

Senior Android Engineer - AI Product

≈ $44k – $87k per year (Estimated) · Senior · Paris · Barcelona · Milan · Berlin · Lisbon · Remote (France) · Relocation · Full-Time · Senior
Kotlin
Swift
AI/ML
Cursor
Claude Code
AI Agents
Apply

Darwin AI

getdarwin.ai
getdarwin.ai · São Paulo · Mexico City · Buenos Aires · Santiago · Lima · Workflow & Process Automation (RPA, BPM) · Conversational AI · 51-200 employees · Startup · Trust D · Hiring 32
São Paulo · Mexico City · Buenos Aires · Santiago · Lima · Workflow & Process Automation (RPA, BPM) · Conversational AI · 51-200 employees · Startup · Trust D · Hiring 32
Darwin AI is a software company that automates business processes for small and mid-sized companies with AI-powered digital workers on WhatsApp. Its AI agents handle lead qualification, customer reactivation, surveys, appointment scheduling and payment collection, and it hires product owners, AI operations executives, account executives and developers in Buenos Aires, Mexico City and São Paulo. The company is based in Argentina.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 6 hours ago 9 months ago Long shot · 4%

AI Engineer

Hybrid (Mexico City, Mexico, São Paulo, Brazil, Buenos Aires, Argentina, Barcelona, Spain) · Full-Time · Spanish · English
Python
AI/ML
AI Agents
OpenAI
Management
Zapier
Apply
Likely inactiveVerified live · 6 hours ago 10 months ago Long shot · 4%

AI Specialist

Hybrid (Mexico City, Mexico, São Paulo, Brazil, Buenos Aires, Argentina, Barcelona, Spain) · Full-Time · Spanish · English
Python
AI/ML
AI Agents
OpenAI
Management
Zapier
Apply

SmartAssets

smartassets.ai
smartassets.ai · London · Barcelona · Marketing Analytics & Attribution · Marketing & Sales AI · 51-200 employees · Likely startup · Trust B · Hiring 3
London · Barcelona · Marketing Analytics & Attribution · Marketing & Sales AI · 51-200 employees · Likely startup · Trust B · Hiring 3
Powered by AI, the platform tags assets at creative-component level, predicts campaign performance pre-spend, and fine-tunes ad creatives for maximum impact.
No named decision-maker yet.
No careers mailbox known
Open 350 daysVerified live · 6 hours ago 11 months ago Long shot · 5%

AI Engineer / Machine Learning Engineer

≈ $45k – $115k per year (Estimated) · In office (Barcelona, Spain) · Full-Time
Python
AI/ML
Scikit-learn
TensorFlow
PyTorch
Machine Learning
DevOps
Git
Docker
GCP
Apply
Machines can read this selection · checked 20:07 UTC
Machine Learning Engineer Jobs in Barcelona
Frequently asked questions
How many Machine Learning Engineer jobs in Barcelona are available on Alion?
There are currently 59 active listings from 38 hiring companies on Alion, refreshed daily.
What salary do Machine Learning Engineer jobs in Barcelona pay?
The average salary is around $140,628 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.