Machine Learning Engineer Salary 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

LiveKit

livekit.io
LiveKit is an open-source real-time audio, video, and AI voice infrastructure platform headquartered in San Francisco. The company provides cloud and developer infrastructure designed to build ultra-low-latency video conferencing, live streaming, and interactive multimodal AI voice agents into web and mobile applications. Powered by flexible SDKs and scalable server orchestration, LiveKit is widely used by developers and enterprise teams to deploy real-time voice and video applications at global scale.
livekit.io • HQ: San Francisco, San Jose, United States • Artificial Intelligence • AI Agents • Speech & Audio AI • Est. 2021
HQ: San Francisco, San Jose, United States • Artificial Intelligence • AI Agents • Speech & Audio AI • Est. 2021
Top 25% payVerified live · 7 hours ago 13 days ago

Research Engineer (Reinforcement Learning)

$135k – $300k per year • Equity • Remote (EMEA, North America) • Full-Time
Python
AI/ML
Synthetic Data
PEFT
LiveKit
OpenAI
Post-training
Fine-tuning
Llama
LoRA
Qwen
Reinforcement Learning
SGLang
vLLM
FSDP
GRPO
LLM Evaluation
Marketing
Salesforce
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Pleo

pleo.io
Pleo is a major European FinTech unicorn and smart business spend management enterprise headquartered in Copenhagen, Denmark. Founded in 2015 by Fintech entrepreneurs Jeppe Rindom (CEO) and Niccolo Perra, the company operates on a B2B SaaS subscription model combined with interchange revenue from corporate card transactions.
pleo.io • HQ: Copenhagen, Denmark • Software • Financial Services • Billing & Invoicing • FinTech • 501-1000 employees • Est. 2015
HQ: Copenhagen, Denmark • Software • Financial Services • Billing & Invoicing • FinTech • 501-1000 employees • Est. 2015
Verified live · 3 hours ago 13 days ago

Staff Applied AI Engineer

$115k – $253k per year (Estimated) • Staff+ • Remote (United Kingdom, Denmark, Spain, Portugal) • Visa sponsorship • Full-Time • Staff
Python
SQL
JavaScript
Kotlin
TypeScript
Databases
Google BigQuery
AI/ML
LLM
RAG
Context Engineering
LLM Guardrails
LLMOps
AI Agents
Function Calling
DevOps
Vector
AWS
GCP
Kubernetes
QA
Rest-Assured
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Verified live · 3 hours ago 17 days ago

Senior Applied AI Engineer

$94k – $191k per year (Estimated) • Senior • Remote (United Kingdom, Denmark, Spain, Portugal) • Visa sponsorship • Full-Time • Senior
Kotlin
Python
AI/ML
Hybrid Search
LLM
RAG
Context Engineering
LLMOps
AI Agents
Function Calling
DevOps
AWS
GCP
Vector
QA
Rest-Assured
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Hudl

hudl.com
Hudl is a sports performance analysis company headquartered in Lincoln, Nebraska, and founded in 2006. The company provides video capture hardware, cloud video review, statistics, and analytics tools that let coaches and athletes study games and training sessions. Its products are used by more than 200,000 teams worldwide, from youth and high school programs to professional clubs and national federations.
hudl.com • HQ: Lincoln, United States • Fan Engagement • Video & Image Processing Software • Software • Athlete Training • Sports Analytics • Sports • Est. 2006
HQ: Lincoln, United States • Fan Engagement • Video & Image Processing Software • Software • Athlete Training • Sports Analytics • Sports • Est. 2006
Verified live · 1 day ago 15 days ago

Senior MLOps Engineer - Edge

$94k – $191k per year (Estimated) • Senior • Barcelona • Remote (United Kingdom, Spain) • Senior
Python
C
C
FFmpeg
AI/ML
TensorRT
Edge AI
DevOps
CI/CD
Docker
AWS
Robotics
GStreamer
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Toloka AI

toloka.ai
Toloka is a data company founded in 2014 and headquartered in Amsterdam that supplies human-generated training, fine-tuning and evaluation data for artificial intelligence systems. It began as a large-scale crowdsourcing platform and has repositioned around expert work, combining domain specialists, machine learning tooling and quality control pipelines to produce reasoning traces, preference rankings and agentic task data. Operating within the Nebius group and backed by Bezos Expeditions since 2025, the company serves frontier model laboratories and enterprises building their own systems.
toloka.ai • HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
Verified live · 1 hour ago 2 months ago

Freelance Forward Deployed AI Engineer

Remote (EU, United States, United Kingdom, Serbia) • Master's Degree • Freelance
Python
AI/ML
LLM
LoRA
NumPy
Pandas
PEFT
RAG
RLHF
Synthetic Data
Transformers
Anthropic
DPO
PPO
SFT
AI Agents
Fine-tuning
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Innovecs

innovecs.com
Innovecs is a Ukrainian software company founded in 2011 and headquartered in Kyiv. It builds digital products for gaming, logistics and healthcare clients. The company operates delivery centres across several countries.
innovecs.com • HQ: Kyiv, Ukraine • Information Technology • Data & Analytics • Artificial Intelligence • Est. 2011
HQ: Kyiv, Ukraine • Information Technology • Data & Analytics • Artificial Intelligence • Est. 2011
Open 186 days 7 months ago

Senior Back-End Engineer (AI-Native)

Senior • Remote (Poland, Romania, Spain, Ukraine) • Senior
AI Agents
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Cohere

cohere.com
Cohere is a Canadian AI company founded in 2019 and headquartered in Toronto. It builds secure, enterprise-focused large language models and AI tools for businesses and regulated industries. The company is known for emphasizing privacy, private deployment, and "sovereign AI" rather than consumer chat products
cohere.com • HQ: Toronto, Canada • Energy & Utilities • Biotechnology • Natural Language Processing • LLM & Generative AI • Artificial Intelligence • 1001-5000 employees • Est. 2019
HQ: Toronto, Canada • Energy & Utilities • Biotechnology • Natural Language Processing • LLM & Generative AI • Artificial Intelligence • 1001-5000 employees • Est. 2019
Verified live · 1 hour ago 19 days ago

Member of Technical Staff, Agentic Environments

$126k – $277k per year (Estimated) • Staff+ • New York • Remote (EU, Europe, United States, Canada) • Full-Time • Staff
Python
AI/ML
Cohere SDK
JAX
LLM
Multimodal AI
PyTorch
Ray
AI Agents
DevOps
Kubernetes
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Accenture

accenture.com
Accenture is a leading global professional services company specializing in strategy, consulting, technology, and operations services. Headquartered in Dublin, Ireland, the firm helps organizations optimize their business performance, navigate digital transformation, and implement advanced technologies like AI and cloud computing.
accenture.com • HQ: Dublin, Ireland • HQ: Chicago, United States • Artificial Intelligence • IT Consulting • Information Technology • 5000+ employees • Est. 1989
HQ: Dublin, Ireland • HQ: Chicago, United States • Artificial Intelligence • IT Consulting • Information Technology • 5000+ employees • Est. 1989
Verified live · 2 hours ago 20 days ago

AI Software Engineer | Spain

$67k – $135k per year (Estimated)In office (Madrid, Barcelona, Spain) • Full-Time
Java
Python
AI/ML
AutoGen
Braintrust
CrewAI
Embeddings
LangGraph
LangSmith
LLM
RAG
Vertex AI
LangChain
Anthropic
Context Engineering
LLM Evaluation
OpenAI
AI Agents
DevOps
CI/CD
Docker
Helm
Kubernetes
Terraform
Vector
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Constructor

constructor.io
Founded in 2015, Constructor is an AI-powered search and product discovery platform built specifically for enterprise e-commerce businesses. The company utilizes real-time clickstream data and machine learning to deliver personalized product recommendations, site search results, and category browse experiences. By optimizing search outcomes for key retail metrics like revenue and conversion rather than simple keyword matching, it helps major online retailers increase sales and improve customer retention.
constructor.io • HQ: San Francisco, United States • Internet Services • Artificial Intelligence • Commerce • Search Engines • Est. 2015
HQ: San Francisco, United States • Internet Services • Artificial Intelligence • Commerce • Search Engines • Est. 2015
Verified live · 1 day ago 26 days ago

Senior Backend Engineer: Machine Learning Infrastructure

$80k – $120k per year • Senior • 5+ years exp • Remote (EMEA) • Full-Time • Senior
Python
C++
Go
Rust
Databases
PostgreSQL
Milvus
OpenSearch
pgvector
Qdrant
Weaviate
DevOps
AWS
Azure
GCP
Kubernetes
Platform Engineering
Terraform
Vector
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Kiwi.com

kiwi.com
At Kiwi.com, we believe everyone should be free to experience the world and that's why we're breaking down the barriers to low-cost travel. Using our powerful search technology, we create solutions to make affordable travel accessible for all. Wit...
kiwi.com • Prague • Brno • Barcelona • Bratislava • Travel & Tourism • Travel Technology • Travel Agencies
Prague • Brno • Barcelona • Bratislava • Travel & Tourism • Travel Technology • Travel Agencies
Verified live · 1 day ago 26 days ago

AI Engineer - Security

$59k – $119k per year (Estimated)Remote/Hybrid (Barcelona, Spain) • Relocation • Full-Time
PowerShell
Python
AI/ML
AI Agents
Cybersecurity
CIS Benchmarks
Crowdstrike
SentinelOne
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Verified live · 1 day ago 2 months ago

Senior AI Engineer - Security

$52k – $132k per year (Estimated) • Senior • Remote/Hybrid (Barcelona, Spain) • Relocation • Full-Time • Senior
Go
Python
Rust
AI/ML
AI Agents
DevOps
AWS
GCP
Cybersecurity
Crowdstrike
SentinelOne
Wiz
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Canonical

canonical.com
Canonical is the publisher of Ubuntu, the world's most widely used Linux distribution, headquartered in London. Founded in 2004 by Mark Shuttleworth, the company provides enterprise-grade services, support, and security for open-source software, enabling organizations to deploy and manage workloads consistently across diverse environments. Their portfolio spans the entire compute spectrum - from public and private cloud infrastructure (OpenStack), container orchestration (Kubernetes/MicroK8s), and data center management to specialized edge and IoT computing.
canonical.com • HQ: London, United Kingdom • Artificial Intelligence • Software • Information Technology • 1001-5000 employees • Est. 2004
HQ: London, United Kingdom • Artificial Intelligence • Software • Information Technology • 1001-5000 employees • Est. 2004
Open 1262 daysVerified live · 1 day ago 3 years ago

Engineering Manager - MLOps & Analytics

Lead • Remote (AMER, EMEA) • Staff
Python
AI/ML
Feast
Kubeflow
MLFlow
DevOps
AWS
Azure
Docker
GCP
Kubernetes
Ubuntu
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Novanta

novanta.com
Novanta supplies photonics, vision and precision motion components to equipment manufacturers. Its lasers, encoders and imaging subsystems go into medical and advanced industrial machines. The company operates through a family of specialised engineering brands.
novanta.com • HQ: Bedford, United States • Information Technology • Data & Analytics • Health Care • 501-1000 employees • Est. 1968
HQ: Bedford, United States • Information Technology • Data & Analytics • Health Care • 501-1000 employees • Est. 1968
Verified live · 1 day ago 29 days ago

Security Automation & AI Engineer

$38k – $106k per year (Estimated) • Middle • 3+ years expIn office (Barcelona, Spain) • Bachelor's Degree • Full-Time • Middle
PowerShell
Python
AI/ML
Anomaly Detection
LLM
DevOps
Azure
Azure DevOps
CI/CD
Git
GitHub Actions
Jenkins
IAM
GitHub
AWS
GCP
Cybersecurity
GDPR
MITRE ATT&CK
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Chainguard

chainguard.dev
Chainguard is a cybersecurity company specializing in supply chain security and container image hardening for modern software development. The company is best known for creating minimalist, zero-vulnerability container base images called Chainguard Images, which significantly reduce the attack surface for enterprise applications. Founded by open-source security leaders, Chainguard helps organizations automate software security compliance and protect their build pipelines against supply chain attacks.
chainguard.dev • HQ: New York, United States • Software • Cybersecurity • DevSecOps • Est. 2021
HQ: New York, United States • Software • Cybersecurity • DevSecOps • Est. 2021
Verified live · 6 hours ago 2 months ago

Senior Software Engineer (AI CICD)

$80k – $202k per year (Estimated) • Equity • Senior • 5+ years exp • Remote (Europe, United States) • Bachelor's Degree • Internship • Senior
Go
Databases
Snowflake
AI/ML
AI Agents
OpenAI
DevOps
CI/CD
Docker
GitHub Actions
Kubernetes
GitHub
Apply
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Mira Construction

miraconstruction.com
Mira Construction is a general contracting and construction management firm that delivers residential, commercial, and institutional building projects. The company provides end-to-end project execution services, including pre-construction planning, site development, structural engineering, and interior finishing. By collaborating closely with architects and property owners, it focuses on delivering quality craftsmanship, cost-effective scheduling, and structural integrity tailored to client specifications.
miraconstruction.com • HQ: Dubai, United Arab Emirates • Science & Engineering • Manufacturing • Civil & Structural Engineering
HQ: Dubai, United Arab Emirates • Science & Engineering • Manufacturing • Civil & Structural Engineering
Verified live · 1 day ago 2 months ago

Senior ML Engineer / ML Lead

Lead • Remote (Cyprus, Poland, Serbia, Spain, Georgia) • Full-Time • Staff
Python
C++
C++
PyTorch C++
AI/ML
JAX
NumPy
PyTorch
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Ecovadis

ecovadis.com
EcoVadis is a sustainability intelligence company that provides a SaaS platform for assessing and improving the environmental, social and ethical performance of organisations and their supply chains. In practice, it helps companies understand how well they and their suppliers are managing topics such as carbon and climate impact, labour and human rights, ethics and responsible procurement. For job seekers, the core problem EcoVadis tackles is a common one in modern business, large organisations are under pressure to report on sustainability and reduce risk across complex global supply networks, but the data is fragmented, hard to verify and difficult to turn into consistent decisions.
ecovadis.com • Kuala Lumpur • Barcelona • Warsaw • Washington • London • Transportation & Logistics • Cybersecurity • Supply Chain
Kuala Lumpur • Barcelona • Warsaw • Washington • London • Transportation & Logistics • Cybersecurity • Supply Chain
2 months ago

Staff AI/ML Scientist

$72k – $159k per year (Estimated) • Staff+ • 8+ years expRemote/Hybrid (Barcelona, Spain) • Visa sponsorship • Master's Degree • Internship • Staff
Python
Databases
Databricks
AI/ML
AutoGen
LangGraph
LLM
MLFlow
NLP
LangChain
AI Agents
Gemini
DevOps
Azure
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Verified live · 1 day ago 2 months ago

Staff AI/ML Scientist

$72k – $159k per year (Estimated) • Staff+ • 8+ years expRemote/Hybrid (Barcelona, Spain) • Master's Degree • Full-Time • Senior
Python
Databases
Databricks
AI/ML
AutoGen
LangGraph
LLM
MLFlow
NLP
LangChain
AI Agents
Gemini
DevOps
Azure
Apply
Verified live · 1 day ago 2 months ago

Senior AI/ML Engineer

$50k – $127k per year (Estimated) • Senior • Remote/Hybrid (Barcelona, Spain) • Bachelor's Degree • Full-Time • Senior
Python
Databases
Databricks
AI/ML
AgentOps
LangChain
MLFlow
LLMOps
DevOps
Azure
Bicep
Docker
Rest API
Apply
Report

Blockchain Capital

blockchaincapital.com
Blockchain Capital is one of the earliest dedicated digital asset venture firms, founded in 2013 in San Francisco. It has invested across many funds in exchanges, infrastructure, decentralised finance and consumer applications. The firm was also a pioneer of tokenised fund structures, issuing a security token to represent limited partner interests.
blockchaincapital.com • HQ: San Francisco, United States • Blockchain & Crypto • Est. 2013
HQ: San Francisco, United States • Blockchain & Crypto • Est. 2013
Verified live · 2 hours ago 2 months ago

Senior AI Engineer - Growth

$91k – $186k per year (Estimated) • Senior • Remote (United Arab Emirates, United Kingdom, Argentina, Brazil, Bulgaria) • Full-Time • Senior
LLM
Prompt Engineering
Structured Outputs
AI Agents
Function Calling
Apply
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Intellectsoft

intellectsoft.com
Intellectsoft is a global software development company that provides a wide range of services, including mobile app development, web development, cloud computing, data analytics, and more. The company has a team of experienced developers who are committed to delivering high-quality software solutions. Intellectsoft has a strong reputation for its expertise in various technologies, and it has worked with a wide range of clients across different industries.
intellectsoft.com • HQ: Bengaluru, India • Information Technology • Mobile App Development • Software
HQ: Bengaluru, India • Information Technology • Mobile App Development • Software
Verified live · 1 day ago 2 months ago

Embedded AI Engineer (IR-540)

$60k – $104k per year (Estimated) • Remote (Argentina, Brazil, Colombia, Poland, Spain) • Master's Degree • Full-Time
C#
C#
.NET
AI/ML
AI Agents
LLM
Prompt Engineering
Claude
Anthropic
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NIQ

nielseniq.com
NIQ, formerly known as NielsenIQ, is a leading global consumer intelligence company. Headquartered in Chicago, Illinois, the firm provides market measurement, retail analytics, and consumer shopping behavior data to brands, retailers, and consumer packaged goods (CPG) manufacturers across more than 90 countries.
nielseniq.com • HQ: Chicago, United States • Sales & Marketing • Market Research • Customer Analytics • Data & Analytics • 1001-5000 employees
HQ: Chicago, United States • Sales & Marketing • Market Research • Customer Analytics • Data & Analytics • 1001-5000 employees
$64k – $81k per year • Senior • 7+ years expMadrid • Remote (Spain) • Master's Degree • Full-Time • Senior • English
Python
SQL
Databases
FAISS
Pinecone
Databricks
ElasticSearch
AI/ML
Embeddings
NLP
Pandas
PyTorch
Scikit-learn
Semantic Search
Transformers
Hugging Face
Recommender Systems
Semantic Search
AI Agents
RAG
Knowledge Graph
DevOps
Git
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Grafana Labs

grafana.com
Grafana Labs is a company that specializes in open-source observability technologies and solutions. It offers a comprehensive suite of tools for logging, metrics, tracing, and profile management with products like Grafana, Loki, Tempo, and Mimir.
grafana.com • HQ: New York, United States • Information Technology • Data & Analytics • Log Analytics • 1001-5000 employees
HQ: New York, United States • Information Technology • Data & Analytics • Log Analytics • 1001-5000 employees
$97k – $116k per year • Equity • Senior • Remote (Spain) • Visa sponsorship • Bachelor's Degree • Senior
Go
TypeScript
AI/ML
Anthropic
Recommender Systems
DevOps
Grafana
gRPC
Marketing
Salesforce
Apply
Verified live · 1 day ago 2 months ago

Staff AI Engineer - 2nd Horizon | Spain | Remote

$109k – $136k per year • Staff+ • Remote (Spain) • Staff
Databricks
Snowflake
AI/ML
AI Agents
LLM
Anthropic
Context Engineering
DevOps
AWS
Azure
GCP
Grafana
Analytics
Power BI
Tableau
Management
Slack
Marketing
Salesforce
Apply
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Udacity

udacity.com
Udacity is an online education company headquartered in Emeryville, California, and founded in 2011 by Sebastian Thrun, David Stavens, and Mike Sokolsky after a free Stanford artificial intelligence course. The company sells Nanodegree programs in areas such as programming, data science, artificial intelligence, cloud computing, and autonomous systems, built together with industry partners. It shifted toward enterprise and government reskilling contracts and was acquired by Accenture in 2024.
udacity.com • HQ: Emeryville, United States • Corporate Training • Vocational Education • Education • EdTech Platforms • E-learning • Est. 2011
HQ: Emeryville, United States • Corporate Training • Vocational Education • Education • EdTech Platforms • E-learning • Est. 2011
$105k – $233k per year (Estimated) • Senior • 5+ years exp • Remote (MENA, APAC, Europe, United States, Canada) • Visa sponsorship • Contractor • Senior
Bash
Python
SQL
AI/ML
AI Agents
Claude
Claude Code
Model Context Protocol
Prompt Engineering
Anthropic
Context Engineering
Human-in-the-Loop
OpenAI Agents SDK
Structured Outputs
Function Calling
DevOps
CI/CD
Git
Rest API
GitHub
Management
Slack
Apply
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Ruby Labs

rubylabs.com
Ruby Labs is a self-funded technology company that develops subscription-based digital consumer products across the health, wellness, education, and entertainment sectors. Leveraging an engineering-led architecture and proprietary data analytics, the firm builds scalable mobile applications designed to reach tens of millions of active global users. Operating with a remote-first, data-driven approach, the company focuses on creating high-impact consumer apps backed by internal marketing automation and custom payment infrastructures.
rubylabs.com • HQ: Los Angeles, United States • Health Care • Wellness • Software • Mobile App Development
HQ: Los Angeles, United States • Health Care • Wellness • Software • Mobile App Development
Verified live · 9 hours ago 2 months ago

Senior AI Engineer

Senior • 6+ years exp • Remote (EU, Bosnia and Herzegovina, Montenegro, Serbia, Albania) • Full-Time • Senior
Node JS
Python
Ruby
TypeScript
JavaScript
Databases
Redis
PostgreSQL
AI/ML
Function Calling
LangChain
Langfuse
LlamaIndex
LLM
OpenRouter
Prompt Engineering
AI Agents
Claude
Claude Code
Cursor
Fine-tuning
Model Context Protocol
RAG
Windsurf
Anthropic
OpenAI
Frontend
Next.js
React.js
DevOps
Cloudflare
Analytics
A/B Testing
Marketing
Mixpanel
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Machine Learning Engineer Salary 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.