AI Jobs in Spain

Find top AI jobs in Spain across machine learning, generative AI, and data roles. All opportunities are curated and updated hourly from companies hiring nationwide.

Check out 61 new AI opportunities posted on AI Chopping Block

Senior Software Engineer, AI Voice Agent

New
Top rated
Aircall
Full-time
Posted

As a Senior Software Engineer on the AI Voice Agent team, you will work on real-time systems involving live audio streaming and latency optimization integrated with speech providers. You will build and improve conversation intelligence systems that manage LLM layers, including prompt construction, context management, function calling, and dialogue management to create natural, actionable phone conversations. You will develop the action framework allowing configurable API calls with branching logic and runtime execution, supporting tasks like data lookup and ticket creation during calls. You'll manage knowledge ingestion, storage, and retrieval to enhance agent memory and learning over time. You will collaborate with designers to enable customers to create, configure, test, and deploy voice agents through intuitive product experiences. Additionally, you will help develop evaluation frameworks, analytics, call quality metrics, and monitoring instrumentation, and participate in on-call rotation duties.

$150,000 – $220,000
Undisclosed
YEAR

(USD)

Maybe global

Member of Technical Staff (Data): World Models

New
Top rated
Moonvalley
Full-time
Full-time
Posted

Design, automate, maintain, and optimize Python ETL pipelines (Spark/Ray) for large-scale multimodal data. Build and maintain data cataloging, lineage, quality tooling, integrity verification, access controls, and lifecycle management systems. Provide guidance, internal tools, and documentation to colleagues on data best practices. Serve as a custodian of the company’s datasets, ensuring overall data health, quality, and discoverability.

Undisclosed

()

Maybe global
Remote

Freelance Junior Journalist - AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

As an AI Trainer - Junior Journalist, the role involves helping to train AI models by crafting text that teaches AI reasoning, logic accuracy, nuance, and clarity. Contributors may craft original, clear, and fact-checked responses based on project guidelines, generate prompts to challenge AI, define comprehensive scoring criteria to evaluate AI answer accuracy, and follow style and quality standards to ensure consistency.

$20 / hour
Undisclosed
HOUR

(USD)

Spain
Maybe global
Remote

Machine Learning Developer (Freelance)

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors may design original computational STEM problems that simulate real scientific workflows, create problems that require Python programming to solve, ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes, develop problems requiring non-trivial reasoning chains and creative problem-solving approaches, verify solutions using Python with standard libraries such as Numpy, Pandas, Scipy, and scikit-learn, and document problem statements clearly while providing verified correct answers.

$34 / hour
Undisclosed
HOUR

(USD)

Spain
Maybe global
Remote

Senior Software Engineer – Applied AI for Corporate Systems

New
Top rated
Aircall
Full-time
Full-time
Posted

The Senior Software Engineer is responsible for partnering with Finance and HR stakeholders to map, document, and prioritize workflows that can be automated with AI agents, building autonomous and semi-autonomous agent workflows that interact with browsers, internal APIs, ERP systems like NetSuite, and HRIS platforms such as BambooHR. They design and operate Model Context Protocol (MCP) Servers callable by AI Agents to act on corporate systems, and build proprietary agent libraries, prompting strategies, and benchmarking frameworks tailored to corporate use cases. The role includes developing and maintaining integrations between AI agents and corporate SaaS platforms including NetSuite, Slack, and Google Workspace, developing custom JavaScript (SuiteScript) for NetSuite to automate workflows and integrations, prototyping, testing, and optimizing AI-powered applications including workflow automation for Finance and HR. The engineer translates complex business processes such as month-end close, payroll, onboarding, and compliance reporting into clear technical specifications, provides technical documentation and training to non-technical Finance and HR teams for adoption of AI solutions, participates in architecture reviews, sprint planning, and cross-functional alignment with Finance, HR, Legal, and Engineering teams, and stays current on advancements in AI technologies while evangelizing AI capabilities internally across Aircall.

Undisclosed

()

Madrid, Spain
Maybe global
Onsite

Energy Systems Engineer - Freelance AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors may design rigorous energy engineering problems reflecting professional practice; evaluate AI solutions for correctness, assumptions, and constraints; validate calculations or simulations using Python (NumPy, Pandas, SciPy); improve AI reasoning to align with industry-standard logic; and apply structured scoring criteria to multi-step problems.

$33 / hour
Undisclosed
HOUR

(USD)

Spain
Maybe global
Remote

Electrical Engineer & Python Expert - Freelance AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors may design rigorous electrical engineering problems reflecting professional practice; evaluate AI solutions for correctness, assumptions, and constraints; validate calculations or simulations using Python (NumPy, Pandas, SciPy); improve AI reasoning to align with industry-standard logic; and apply structured scoring criteria to multi-step problems.

$55 / hour
Undisclosed
HOUR

(USD)

Maybe global
Remote

Electrical Engineer & Python Expert - Freelance AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors may design rigorous electrical engineering problems reflecting professional practice, evaluate AI solutions for correctness, assumptions, and constraints, validate calculations or simulations using Python (NumPy, Pandas, SciPy), improve AI reasoning to align with industry-standard logic, and apply structured scoring criteria to multi-step problems.

$33 / hour
Undisclosed
HOUR

(USD)

Spain
Maybe global
Remote

Statistics Expert (Python) - Freelance AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors design rigorous statistics problems reflecting professional practice; evaluate AI solutions for correctness, assumptions, and constraints; validate calculations or simulations using Python libraries such as NumPy, Pandas, SciPy, Statsmodels, and Scikit-learn; improve AI reasoning to align with industry-standard logic; and apply structured scoring criteria to multi-step problems.

$73 / hour
Undisclosed
HOUR

(USD)

Maybe global
Remote

Statistics Expert (Python) - Freelance AI Trainer

New
Top rated
Mindrift
Part-time
Full-time
Posted

Contributors may design rigorous statistics problems reflecting professional practice, evaluate AI solutions for correctness, assumptions, and constraints, validate calculations or simulations using Python (NumPy, Pandas, SciPy, Statsmodels, and Scikit-learn), improve AI reasoning to align with industry-standard logic, and apply structured scoring criteria to multi-step problems.

$34 / hour
Undisclosed
HOUR

(USD)

Spain
Maybe global
Remote

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Frequently Asked Questions

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[{"question":"What types of AI jobs are available in Spain?","answer":"Spain's AI job market features diverse technical and leadership roles. Machine Learning Engineers build AI models and algorithms for various applications. AI Back End Engineers specialize in LLMs, designing infrastructure to support language models. Data Scientists lead analytics and predictive modeling initiatives. AI Platform Engineers develop and maintain AI infrastructure. Project Managers oversee AI implementation across teams. Other common positions include Senior Machine Learning Scientists and Chief Data Science Officers. These roles span industries from finance to healthcare, with companies like NEORIS actively hiring AI talent in Spain. The market particularly values professionals who can bridge technical expertise with business applications."},{"question":"Are there remote AI jobs available in Spain?","answer":"Yes, remote AI jobs are widely available in Spain's evolving tech market. Many positions on specialized job boards are specifically tagged as remote, allowing professionals to work from anywhere in Spain or sometimes globally. Companies recognize that AI talent is in high demand and offer flexible arrangements to attract qualified candidates. While some roles—particularly senior leadership positions—may require occasional office presence in Madrid, Barcelona, or Valencia, fully remote arrangements have become standard for many AI engineering and data science positions. Organizations typically specify remote status directly in job listings, making it easy for candidates to filter for remote opportunities when searching for AI roles in Spain."},{"question":"What skills are most in demand for AI jobs in Spain?","answer":"In Spain's AI job market, machine learning expertise ranks as the most crucial skill, particularly deep learning frameworks like TensorFlow and PyTorch. Python programming proficiency is essentially mandatory across all AI positions. LLM specialization has surged in demand, with companies seeking professionals who understand prompt engineering and fine-tuning large language models. Data DevOps skills blend traditional development with AI deployment expertise. Spanish employers increasingly value domain-specific AI application knowledge in sectors like healthcare and finance. Beyond technical capabilities, communication skills are essential as AI professionals must explain complex concepts to non-technical stakeholders. Companies also prioritize candidates with practical experience implementing AI solutions rather than just theoretical knowledge."},{"question":"What is the salary range for AI jobs in Spain?","answer":"AI salaries in Spain vary widely based on several key factors. Experience level significantly impacts compensation, with senior and lead roles commanding substantial premiums. Location affects pay scales—Madrid and Barcelona typically offer higher salaries than smaller cities. Specific AI specializations like LLM engineering or reinforcement learning often warrant higher compensation than general data science roles. Company size and type also influence salaries, with multinational tech firms generally paying more than local startups. While exact figures fluctuate, specialized job boards typically categorize AI positions in Spain into broad salary bands ranging from €10,000–€100,000 or €100,000+. AI professionals consistently earn above-average compensation compared to other technical roles across all career stages."},{"question":"What experience levels are companies hiring for in AI jobs in Spain?","answer":"Spain's AI job market shows a strong preference for experienced professionals, with numerous postings for senior and lead positions. Roles like Senior Machine Learning Scientist and Head of Data Science dominate job boards. Mid-level positions for professionals with 3-5 years of experience appear regularly, particularly for Machine Learning Engineers and Data Scientists with practical implementation experience. Entry-level opportunities exist but are less common, typically requiring strong academic backgrounds in computer science, mathematics, or related fields. Some companies offer AI graduate programs or junior positions to develop talent internally. The emphasis on senior talent reflects the complex nature of AI work and the need for experienced professionals who can deliver production-ready AI systems."},{"question":"How often are new AI jobs posted in Spain?","answer":"New AI positions appear consistently on specialized job boards in Spain, with platforms like AIJobs.ai showing 10+ recent roles posted within the past two months. The frequency varies by season, with noticeable increases after budget approvals in Q1 and slower periods during summer holidays. Major cities like Madrid and Barcelona see more frequent postings than smaller regions. Specialized AI job boards typically feature several fresh opportunities weekly, while general employment sites may add new AI positions daily but with less curation. Machine learning engineering and data science roles appear most frequently, while specialized positions like LLM engineers or AI ethics specialists emerge less often. This steady flow of new listings indicates robust ongoing demand for AI talent in Spain."},{"question":"What is the difference between The Homebase and other job boards?","answer":"Unlike general job sites, The Homebase exclusively curates AI, machine learning, and data science positions, eliminating the need to filter through unrelated listings. Their AI-specific curation team evaluates each posting for authenticity and relevance, focusing on quality over quantity. The platform includes salary transparency tags and specialized filters for remote work and experience levels that general boards typically lack. Job descriptions provide deeper technical details about AI tools and frameworks used at each company. The Homebase emphasizes roles from genuine AI companies and departments rather than positions merely mentioning AI as a buzzword. For candidates seeking AI positions in Spain, this specialized approach offers a more efficient job search experience with higher-quality, relevant opportunities."}]