The best operating system for modern biotech. Join 100+ biotechs that use Scispot to collect, clean, and activate their data - and supercharge R&D.
Software • Biotechnology • Bioinformatics
$80k – $120k per year • Equity 0.1–0.1% • Senior • 6+ years exp • Remote (United States, India, Germany, United Kingdom, Netherlands) • Full-Time • Senior
Java
Python
TypeScript
Java
Spring Boot
Python
FastAPI
Databases
OpenSearch
ElasticSearch
Amazon Aurora
AI/ML
AI Agents
LLM
RAG
Frontend
Next.js
React.js
DevOps
Amazon EKS
AWS
AWS Lambda
CI/CD
Docker
Kubernetes
Vector
Amazon CloudWatch
Amazon ECS
Amazon S3
Analytics
ETL/ELT
Poolside is a foundation model company bringing intelligence to everywhere work gets done. Our mission is to drive abundance for humanity by creating artificial general intelligence.
London • Hardware • LLM & Generative AI • Artificial Intelligence
Remote (EMEA, United States) • Full-Time
Python
AI/ML
LLM
Prompt Engineering
Synthetic Data
Tokenization
Post-training
Pre-training
AI Agents
Remote (EMEA, United States) • Full-Time
Go
AI/ML
Reinforcement Learning
AI Agents
DevOps
Kubernetes
Tryolabs is a specialized AI and machine learning solutions company that helps companies create business value by partnering with them through their AI journey.
Data & Analytics • Machine Learning • Artificial Intelligence • Est. 2009
≈ $107k – $237k per year (Estimated) • Senior • Remote • Full-Time • Senior
Python
AI/ML
Scikit-learn
XGBoost
DevOps
AWS
Azure
CI/CD
GCP
Terraform
Neurons Lab helps financial institutions move from AI-curious to AI-enabled. We deliver AI training programs and custom AI agents designed for regulated environments — from pilot to production, at scale.
Madrid • AI Agents • Financial Services • Artificial Intelligence • 501-1000 employees • Est. 2019
≈ $77k – $138k per year (Estimated) • Staff+ • 6+ years exp • Remote (Bulgaria, Cyprus, Czech Republic, Hungary, Italy) • Contractor • Architect • English
Python
TypeScript
AI/ML
AWS Bedrock
Claude
Copilot
Langfuse
LLM
Prompt Engineering
LLM Guardrails
LiveKit
Mobile
Twilio
DevOps
AWS
Chips/EDA
PoC Library
Analytics
A/B Testing
Akamai is the cybersecurity and cloud computing company that powers and protects business online.
Singapore • Hong Kong • CDN • Cybersecurity • Cloud Computing • 1001-5000 employees
≈ $107k – $236k per year (Estimated) • Senior • Remote (Spain) • Senior
Python
AI/ML
AI Agents
CrewAI
LangChain
Vertex AI
Edge AI
Google ADK
Langfuse
DevOps
Akamai
AWS
Azure
GCP
CircleCI
Docker
Kubernetes
Terraform
Our core values tell our story:Excellence. Creativity. Integrity. Teamwork. Empathy.
San Diego • Zurich • Artificial Intelligence • Design & Creative • Financial Services • Software • IT Consulting • Information Technology • 201-500 employees
≈ $118k – $260k per year (Estimated) • Staff+ • 10+ years exp • Remote (Europe) • Bachelor's Degree • Architect
Python
SQL
Databases
MySQL
PostgreSQL
Snowflake
AI/ML
AI Agents
Anomaly Detection
Claude
Embeddings
Fine-tuning
Function Calling
Hallucination
LLM
NLP
NumPy
Pandas
Prompt Engineering
PyTorch
RAG
Reranking
Scikit-learn
Sentiment Analysis
Spark
TensorFlow
Vertex AI
Amazon SageMaker
Anthropic
Context Engineering
Hugging Face
Human-in-the-Loop
Structured Outputs
Claude Code
LangChain
LangGraph
LlamaIndex
Model Context Protocol
Semantic Kernel
LLM Guardrails
LLMOps
DevOps
AWS
AWS Lambda
Azure
GCP
Vector
Amazon S3
CI/CD
Docker
Kubernetes
Analytics
Matplotlib
Power BI
Seaborn
Tableau
ETL/ELT
Management
ServiceNow
Red Hat is the world’s leading provider of open source solutions, using a community-powered approach to provide reliable and high-performing cloud, virtualization, storage, Linux, and middleware technologies. Red Hat also offers award-winning support, training, and consulting services.
HQ: Somerville, United States • Software • Artificial Intelligence • Information Technology • 1001-5000 employees • Est. 1993
≈ $109k – $238k per year (Estimated) • Staff+ • 5+ years exp • United Kingdom • Ireland • Remote (EMEA) • Full-Time • Architect • English: C1
Fine-tuning
Edge AI
LLM Guardrails
AI Agents
DevOps
Kubernetes
OpenShift
Red Hat
OnTheGoSystems is a remote team of tech enthusiasts, innovators, creatives, and engineers. Together, we build products that allow businesses of all sizes to go global.
Belgrade • Zagreb • Kyiv • Bucharest • Athens • Translation Services • Web Development • Software
≈ $58k – $117k per year (Estimated) • Barcelona • Remote (Poland, Serbia, Spain, Ukraine) • Full-Time
Ruby
SQL
Ruby
Ruby on Rails
Neo4j is the world's leading graph database platform, engineered specifically to store, query, and analyze highly connected data. Unlike traditional relational databases that rely on rigid tables and costly JOIN operations, Neo4j models data naturally using nodes (entities), relationships (connections), and properties (key-value attributes).
HQ: San Mateo, United States • Big Data • Information Technology • Database Management
Lead • Remote (EMEA) • Cofounder • Staff
Neo4j
AI/ML
Knowledge Graph
Synthesia is an AI video generation platform that enables users to create professional, studio-quality videos from plain text scripts without needing traditional cameras or film crews. The platform utilizes hyper-realistic digital avatars and natural synthetic voice models to deliver localized video content across dozens of languages in minutes. Widely adopted by corporate enterprises, Synthesia streamlines corporate training, customer onboarding, and internal communications at scale.
HQ: London, United Kingdom • Software • Artificial Intelligence • Generative Video • Video & Image Processing Software • 51-200 employees • Est. 2017
≈ $93k – $236k per year (Estimated) • Senior • Remote (Europe) • Full-Time • Senior
Python
AI/ML
DeepSpeed
Diffusion Models
PyTorch
FSDP
CUDA
CUDA Toolkit
DevOps
CI/CD
Datadog
AWS
Docker
SLURM
GitHub
Design
Webflow
Management
Miro
Remote (Europe) • Full-Time
Python
AI/ML
AI Agents
LLM
DevOps
Datadog
GitHub Actions
Kubernetes
Terraform
GitHub
Design
Webflow
Management
Miro
≈ $136k – $298k per year (Estimated) • Staff+ • Remote (Europe) • Full-Time • Staff
Fine-tuning
Knowledge Distillation
Multimodal AI
PyTorch
Tokenization
DPO
Post-training
Time Series Forecasting
Diffusion Models
DevOps
Datadog
Design
Webflow
Management
Miro
Twilio is a leading cloud communications platform that enables software developers to programmatically build, scale, and integrate real-time communication capabilities into applications via application programming interfaces (APIs). Headquartered in San Francisco, California, the company provides infrastructure for automated SMS messaging, voice calls, WhatsApp integration, video, and two-factor authentication without requiring traditional telecom hardware.
HQ: San Francisco, United States • Telecommunications • Software • Online Communication • 1001-5000 employees • Est. 2008
≈ $34k – $100k per year (Estimated) • Junior • 2+ years exp • Remote (Spain) • Bachelor's Degree • Junior
Python
AI/ML
AutoGen
CrewAI
Fine-tuning
JAX
LangGraph
LLM
NLP
NLTK
Prompt Engineering
PyTorch
TensorFlow
Transformers
LangChain
Hugging Face
LLMOps
AI Agents
Mobile
Twilio
DevOps
AWS
Azure
GCP
Provectus is a global technology consulting firm that specializes in delivering innovative software solutions to businesses of all sizes. We have a proven track record of success in helping our clients achieve their strategic goals by leveraging our deep expertise in cloud computing, big data, and artificial intelligence. Provectus is a trusted partner for organizations looking to transform their digital landscape and gain a competitive advantage in today's dynamic marketplace.
HQ: New York, United States • System Integration • Biotechnology • Data & Analytics • Est. 2010
Senior • 5+ years exp • Remote (Poland, Serbia, Spain, Ukraine, Slovakia) • Full-Time • Senior
Python
TypeScript
Go
Rust
AI/ML
AWS Bedrock
Claude
Claude Code
LLM
RAG
Anthropic
AWS Bedrock AgentCore
LLM Guardrails
OpenAI
AI Agents
Function Calling
AgentOps
Airflow
NLP
Spark
A2A
LLM Evaluation
LLMOps
Model Context Protocol
DevOps
AWS
AWS Lambda
Azure
GCP
Amazon ECS
Amazon S3
CI/CD
GitHub Actions
GitLab CI
Kubernetes
GitHub
GitLab
≈ $44k – $111k per year (Estimated) • Senior • 5+ years exp • Remote (Bosnia and Herzegovina, Poland, Romania, Serbia, Spain) • Full-Time • Senior
Python
TypeScript
Go
Rust
AI/ML
AWS Bedrock
Claude
Claude Code
LLM
RAG
Anthropic
AWS Bedrock AgentCore
LLM Guardrails
OpenAI
AI Agents
Function Calling
AgentOps
Airflow
NLP
Spark
A2A
LLM Evaluation
LLMOps
Model Context Protocol
DevOps
AWS
AWS Lambda
Azure
GCP
Amazon ECS
Amazon S3
CI/CD
GitHub Actions
GitLab CI
Kubernetes
GitHub
GitLab
≈ $43k – $109k per year (Estimated) • Senior • Spain • Remote (Spain) • Full-Time • Senior
Python
Python
Dask
AI/ML
AWS Bedrock
Great Expectations
NLP
RAG
Spark
Amazon SageMaker
AI Agents
DevOps
AWS
AWS Lambda
Docker
Amazon S3
Turn your product knowledge into an agent that answers, troubleshoots, and resolves. For humans and for the agents they.
New York • Cybersecurity • Artificial Intelligence • AI Agents • 11-50 employees
$100k – $170k per year • Equity 0.1–0.2% • Middle • 3+ years exp • Remote (Germany, France, Russia, United Kingdom, Austria) • Master's Degree • Full-Time • Middle
Embeddings
Fine-tuning
RAG
AI Agents
DevOps
Docker
Materialise is a Belgian company founded in 1990 and headquartered in Leuven. It is a world leader in 3D printing software and produces medical implants, surgical guides and industrial parts. The company is listed on Nasdaq and its Magics software is an industry standard for additive manufacturing.
HQ: Leuven, Belgium • Hardware • 3D Printing • 501-1000 employees • Est. 1990
Middle • 3+ years exp • Remote/Hybrid (Leuven, Belgium, Barcelona, Spain) • Bachelor's Degree • Full-Time • Middle • English (Optional)
Python
AI/ML
DVC
MLFlow
ONNX
PyTorch
Scikit-learn
TensorFlow
Vertex AI
Weights & Biases
Amazon SageMaker
DevOps
Amazon EKS
AWS
Azure
CI/CD
Docker
GCP
Git
Terraform
Kubernetes
Solidgate is a financial technology company headquartered in London, United Kingdom, and founded in 2018. The company provides a payment orchestration platform that enables businesses to manage multiple payment service providers, optimize transaction routing, and handle subscription billing, fraud prevention, and tax calculation. It serves global clients in the software-as-a-service and e-commerce sectors, offering infrastructure that supports card acquiring, alternative payment methods, and multi-currency treasury operations.
HQ: London, United Kingdom • Commerce • Fraud Detection • Cybersecurity • Billing & Invoicing • Software • FinTech • Financial Services • Payments • 201-500 employees • Est. 2018
≈ $81k – $206k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Full-Time • Senior
Edge AI
Analytics
A/B Testing
JetBrains is a global software vendor specializing in intelligent, productivity-enhancing developer tools and integrated development environments (IDEs). Founded in 2000 and headquartered in Prague, Czech Republic, the company is best known for creating IntelliJ IDEA, PyCharm, WebStorm, Rider, ReSharper, and the Kotlin programming language (which serves as Google's preferred language for Android development).
HQ: Prague, Czech Republic • Artificial Intelligence • Software • Code Intelligence • Productivity Software • 51-200 employees • Est. 2000
Senior • Amsterdam • Remote (Germany, United Kingdom, Cyprus, Czech Republic, Netherlands) • Relocation • Senior
AI Agents
Fine-tuning
Prompt Engineering
Staff+ • Amsterdam • Remote (Germany, United Kingdom, Cyprus, Czech Republic, Netherlands) • Relocation • Staff
Fine-tuning
LLM
Context Engineering
Post-training
AI Agents
Function Calling
Staff+ • Amsterdam • Remote (Germany, United Kingdom, Cyprus, Czech Republic, Netherlands) • Staff
Python
AI/ML
DeepSpeed
Fine-tuning
Kubeflow
LLM
NLP
PyTorch
RLHF
TensorRT
vLLM
Hugging Face
Pre-training
DevOps
CI/CD
Git
Kubernetes
TeamCity
Sword Health is pioneering AI Care-an AI-first approach to healthcare that combines artificial intelligence with clinical expertise to improve access, outcomes, and cost at scale. Initially transforming pain care with AI at its core, Sword has expanded into women's health, movement health, and mental health, delivering hyper-personalized treatment programs available anytime, anywhere. Since 2020, more than 700,000 members across three continents have completed over 10 million AI sessions, helping 1,000+ enterprise clients-including employers, health plans, and governments-avoid more than $1 billion in unnecessary healthcare costs.
Porto • Medical AI • Physical Therapy • Digital Health • Est. 2014
$70k – $99k per year • Senior • Remote (Europe) • Full-Time • Senior
Fine-tuning
Knowledge Distillation
LLM
AI Agents
Function Calling
RLHF
DPO
Payhawk is a London company founded in 2018 that combines corporate cards, expense management and accounts payable in one system. Its platform automates approvals, receipt capture and accounting reconciliation for finance teams across Europe. The company operates engineering hubs in Sofia and serves mid-market and enterprise customers.
HQ: London, United Kingdom • Est. 2018
≈ $59k – $140k per year (Estimated) • Lead • 7+ years exp • In office (Barcelona, Spain) • Staff • English: C1
CAST AI is an AI-driven cloud automation and Kubernetes cost optimization platform built to help enterprises manage, scale, and secure their cloud infrastructure. Founded in 2019 and headquartered in Miami, Florida, the company automates cloud operations across major hyper-scalers including Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure.
HQ: Miami, United States • Information Technology • Virtualization • DevOps
Equity • Senior • Remote (EU) • Visa sponsorship • Internship • Senior
Python
Databases
ClickHouse
PostgreSQL
AI/ML
CUDA
CUDA Toolkit
LLM
Perplexity
PyTorch
Quantization
SGLang
TensorRT
TensorRT-LLM
TPOT
vLLM
Hugging Face
DevOps
Akamai
ArgoCD
AWS
Azure
GCP
GitLab CI
Grafana
Kubernetes
Loki
Prometheus
GitLab
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.
HQ: San Francisco, San Jose, United States • Artificial Intelligence • AI Agents • Speech & Audio AI • Est. 2021
$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
Salary range
| Seniority |
Jobs |
25% |
Median |
75% |
| Senior |
8 |
$98K |
$120K |
$120K |
| All levels |
12 |
$115K |
$120K |
$140K |
Based only on the listings that state pay. Gross annual amounts, converted to USD so roles in different currencies stay comparable.
The market right now
Alion currently lists 96 open Machine Learning Engineer jobs in Barcelona from 65 companies. 8 of them were posted or refreshed in the last seven days. 52 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary.
What these roles pay
12 of these Machine Learning Engineer jobs in Barcelona state pay directly. Across them the middle half of the market sits between $115K and $140K a year, with a median of $120K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable.
Where the work is
The largest concentrations of these roles are Spain (26), Netherlands (10), France (2), Belgium (1), and Ireland (1). 81% of the listings are fully remote and a further 11% are hybrid, so a large part of this market is open to you regardless of where you live.
Who is hiring
The employers with the most open Machine Learning Engineer jobs in Barcelona right now are JetBrains (10), Synthesia (5), Provectus (4), Plain Concepts (4), Ecovadis (3), and Pragmatike (3). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application.
What employers ask for
Reading across the current listings, the tools that come up most often are Python (70), AI Agents (54), LLM (52), AWS (31), Azure (29), CI/CD (25), Kubernetes (25), and Fine-tuning (25). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list.
Relocation, visas and equity
Of the current Machine Learning Engineer jobs in Barcelona, 6 state visa sponsorship, 8 offer a relocation package, and 6 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you.
