157,822+ Ai Driven Fullstack Engineer Java React Jobs in Spain — Top Companies Hiring June 2026

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Senior AI Engineer las palmas de gran canaria

¡En Ayesa Digital crecemos Contigo! Cada profesional de nuestra empresa es importante para nosotros, nos ayudan a crecer de manera diversa y gracias a ellos somos más de 11.000 personas trabajando con el mismo objetivo en 10 países. Si eres una persona entusiasta y buscas un nuevo re ...

Senior ML Platform & Ops Engineer: Scale AI Pipelines

A technology-driven learning platform is looking for a Senior ML Platform/Ops Engineer based in Barcelona, Spain. You will be responsible for building and maintaining ML pipelines, collaborating with ML Scientists and Data Engineers, and implementing observability for ML systems. The ideal candidate has over 5 y ...

Senior ML Engineer — Build AI that Scales Globally

A technology consulting firm in Barcelona seeks a Senior Machine Learning Engineer to work on applied research projects and help deploy machine learning solutions. The ideal candidate should have strong proficiency in Python, experience with ML frameworks, and the ability to communicate effectively with non-tech ...

AI Engineer: Build Production LLM Apps (Hybrid, Barcelona)

A leading technology firm in Barcelona seeks AI engineers to design and implement AI-powered applications for clients. This role requires at least 2 years of engineering experience and proficiency in AI tools, LLMs, and software fundamentals. You will communicate technical concepts clearly and work directly with ...

Senior Full Stack Engineer – AI First, Barcelona (Hybrid)

A fast-growing SaaS startup in Barcelona is seeking a Full-Stack Developer (Backend-Leaning) to own backend architecture and contribute to frontend development. The ideal candidate has over 5 years of experience, strong proficiency in TypeScript/Node.js, React, and AWS, with responsibilities including API develo ...

Lead AI Engineer: Multi Agent Systems & Production LLMs

A leading enterprise AI company in Barcelona is seeking a Senior Engineer to design multi-agent architectures and build backend services in Python. This role involves making foundational architecture decisions and collaborating with product leadership. The ideal candidate has strong experience with Python, agent ...

Senior Python AI Engineer Azure & GenAI (Hybrid Madrid)

Una empresa tecnológica en Madrid busca un Desarrollador Senior especializado en Python. La persona seleccionada liderará la creación de soluciones de Inteligencia Artificial y Machine Learning usando Azure. Ofrecemos un contrato Freelance a tiempo completo, con un ritmo de trabajo híbrido (3 días en oficina y 2 ...

Data Engineer: AI Ready ETL & Big Data Pipelines

A leading energy management company located in Barcelona seeks a Data Engineer to modernize data-lake operations. The role involves designing ETL processes, managing complex datasets, and collaborating with cloud engineering teams. Suitable candidates should have a degree in a relevant field and at least 2 years ...

Mid Level AI Engineer: Agentic LLM & RAG Systems

A pioneering Healthtech company in Barcelona seeks a Mid-Level AI Engineer to design sophisticated AI systems. The role focuses on building advanced workflows, managing complex state in AI applications, and ensuring the reliability of generative features. Candidates should have 2-3 years of experience in softwar ...

Senior Full Stack ML Engineer — Healthcare AI, Hybrid

A pioneering healthcare technology company based in Barcelona is seeking a Senior Full Stack ML Engineer to lead the development of innovative machine learning models targeted at solving complex healthcare challenges. The role demands strong Python skills, experience in data science, and the ability to mentor co ...

Senior Python Engineer AI Testing Project (Freelance, Mindrift)

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. </ ...

Hybrid Data Engineer for Big Data & AI Research

Eurecat Technology Centre in Barcelona is seeking a Data Engineer to work within the Big Data & Data Science unit. The ideal candidate will design data pipelines, contribute to EU-funded projects, and collaborate on data spaces. Candidates should have an MSc in Computer Science or a related field, along with at ...

Remote Python Software Engineer — AML/Big Data AI

Una empresa de software de detección de fraudes busca un Software Engineer (Python) para desarrollar herramientas basadas en inteligencia artificial. El candidato ideal tendrá más de 2 años de experiencia en Python y trabajará en un entorno 100% remoto. Las responsabilidades incluyen el análisis de requisitos, d ...

Data Engineer – AI Analytics for ISPs | Hybrid Madrid

A leading tech company based in Madrid is seeking a Data Engineer to enhance access networks for global ISPs. This role involves data collection, analysis, and predictive modeling to support business decisions. The ideal candidate will have a Bachelor's degree in a relevant field and strong experience with Pytho ...

Senior French Prompt Engineer – Clinical AI (Remote Europe)

A consulting firm is seeking a Senior French-speaking Prompt Engineer to enhance AI-powered clinical documentation systems. This role emphasizes LLM prompt engineering and innovative solutions within healthcare workflows. The ideal candidate will possess over 5 years of experience, strong Python skills, and flue ...

Lead Repair Design Engineer Compressors, 3D Scans & AI

A global energy technology leader in Madrid is looking for a Repair Lead Design Engineer to innovate and validate solutions for compressor repairs. The role involves applying cutting-edge technology, coordinating project progress, and developing repair designs. Ideal candidates will have over 10 years of experie ...

Federated AI Engineer — Remote Impact in Precision Medicine

A leading data analysis technology company in Barcelona is seeking an AI Engineer to bridge massive biomedical datasets with insights. You'll develop systems to optimize machine learning models within a federated architecture, ensuring data security. Candidates should have a degree in Computer Science or related ...

Python & Kubernetes Data Engineer — AI/ML & Analytics (Remote)

A leading open source software provider is seeking Python and Kubernetes Specialist Engineers to develop data analytics and MLOps solutions. The role involves collaboration across teams, debugging, and working with both cloud solutions and Kubernetes. Candidates should have strong Python experience, an undergrad ...

Python API Engineer for AI Agents & LLM Integrations

A pioneering Healthtech company in Barcelona is seeking a talented Python Software Developer to join their innovative team. The role involves building scalable APIs, integrating AI systems, and managing database schemas. Ideal candidates will have proven experience with Python and LLM frameworks, along with a so ...

AI Agent & MCP Engineer – Hybrid in Málaga (Relocation)

A global consulting leader is seeking an AI Integrations Engineer to design and manage AI agents and Model Context Protocol servers. This hybrid position in Málaga requires a minimum of 5 years in software engineering or DevOps, with a focus on AI systems. You'll collaborate in a dynamic environment and receive ...

Senior AI Full Stack Engineer: Production ML Systems

A leading recruitment agency is looking for a Senior Consultant specializing in AI, Semiconductor, and Embedded Systems in Madrid. The role involves taking ownership of AI solutions from concept to production, building intelligent systems, and collaborating across teams to deliver robust AI solutions. Ideal cand ...

Lead Design System Engineer — Kaizen, AI ready UI

bsport in Castelldefels is looking for a Senior Design System Engineer to lead the architecture and strategy of their design systems. In this role, you will drive the evolution of Kaizen, ensure accessibility improvements, and collaborate closely with design teams for high impact. The ideal candidate has over 4 ...

Remote AI Infrastructure Engineer – GPU ML Ops (EMEA)

Pragmatike is looking for an AI Infrastructure Engineer to join a fast-growing startup in Madrid, fully remote. The role involves building production-grade model serving infrastructure for AI systems, focusing on efficient ML inference platforms. Candidates should have 4+ years of relevant experience, skills in ...

Senior AI Engineer — LLMs, ML Pipelines & MLOps (Remote)

Initiumsoft busca un AI Engineer para diseñar y liderar pipelines de inteligencia artificial. Trabajarás en un entorno 100% remoto desde España, colaborando con un equipo multidisciplinario en proyectos innovadores. El candidato ideal tiene 7 años de experiencia en ingeniería de datos, es experto en Py ...

Staff Software Engineer Lead Web Platform & AI (Remote)

A leading information services company in Barcelona is seeking a Staff Software Engineer to architect and deliver next-gen web and AI platforms. You will lead technical strategies, bridge business and technology, and drive operational excellence, requiring 7+ years of experience in software engineering, includin ...

Senior Data Engineer — Build AI Ready Data Platform

team.blue is seeking a Senior Data Engineer located in Barcelona, Spain. This pivotal role involves developing and maintaining the central data ecosystem that transforms raw data into high-value products. Candidates should have 7+ years of experience and a Master’s or PhD in a related field. The succes ...

Senior Lead Software Engineer, AI & NLP (Hybrid, Barcelona)

Clarivate Analytics seeks a Senior Lead Software Engineer in Barcelona to join the Data Science and AI team. This role focuses on developing AI solutions with a strong emphasis on Python programming and cloud environments. With over 7 years of experience required, the ideal candidate will have expertis ...

AI Research Engineer (PhD) Hybrid Remote, Flexible Perks

NeuralTrust, a Barcelona-based startup, is seeking an AI Research Engineer with a PhD to lead their product vision and work closely with enterprise clients. This role involves designing AI components, applying state-of-the-art research, and collaborating with product teams. Candidates should have stron ...

Principal Forward Deployed Engineer QuantumBlack, AI by McKinsey

Who You’ll Work With Driving lasting impact and building long‑term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture – doing hard things, picking yourself up when you stumble, and having the resilience to try another w ...

Remote Data Scientist & AI Engineer | RAG, LLMs & Cloud

Logicalis Spain busca un Data Scientist / IA Engineer para unirse al equipo de Data, Analytics & IA. El candidato participará en proyectos de ingeniería de datos e inteligencia artificial para clientes nacionales e internacionales. Se requiere experiencia en Python, integración de APIs de IA y plataformas cloud. ...

Senior Backend Engineer for Scalable, Secure AI Voice

Aircall is seeking a Senior Backend Software Engineer to design and develop customer-centric features, focusing on quality and scalability. The ideal candidate has over 6 years of experience in back-end development, particularly with Typescript, and has strong skills in AWS. The role involves mentoring, particip ...

Senior Backend Engineer — Build Enterprise AI Data Layer

Cirql One in Barcelona is seeking a talented Backend Engineer to build the foundational semantic core that connects enterprise data to AI. You will take ownership of features from design through to implementation, ensuring coherence and quality. The ideal candidate will have significant experience in d ...

Barcelona Onsite Software Engineer Python/C++ & AI Tools

Qorvo (Nasdaq: QRVO) supplies innovative semiconductor solutions that make a better world possible. We combine product and technology leadership, systems‑level expertise and global manufacturing scale to quickly solve our customers' most complex technical challenges. Join Qorvo’s R&D software team ...

GCP Cloud AI Engineer – Production LLM & Agent Apps

Publicis Groupe Holdings B.V is seeking a Cloud AI Developer in Madrid, Spain, to design, build, and deploy production-ready AI solutions using Google Cloud Platform. This role involves collaborating with Google teams and focuses on building AI services that are reliable and scalable. The ideal candidate should ...

Senior Full Stack AI Engineer: Production ML & MLOps

A leading multinational organization in Málaga is seeking a Full Stack Applied AI Engineer to develop and maintain AI applications, optimize performance, and collaborate with cross-functional teams. Ideal candidates have a Bachelor's degree and 4+ years of experience in AI or ML engineering, with strong programm ...

Pre Training AI Research Engineer, Large Scale GPUs

A leading AI research firm in Spain seeks an experienced AI Research Engineer to advance large-scale pre-training systems. You will work directly with cutting-edge GPU architectures to design training pipelines and improve model performance. Ideal candidates have a PhD in Computer Science or related fields, hand ...

Senior ML Platform Engineer: Build Scalable AI Infrastructure

Super is seeking a Senior Engineer to lead the development of an ML Platform that will significantly influence user experience and data-driven decisions across the organization. This position requires a blend of strategic and hands-on work, ensuring the platform supports ML adoption. The ideal candidat ...

Data Architect & Engineer: AI Ready Data Platforms (Hybrid)

Symrise AG in Barcelona is looking for a Data Architect & Engineer to lead the company's data strategy and digital transformation. This role involves designing data solutions and collaborating with various business and technology teams. The ideal candidate will have expertise in data architecture, mode ...

Senior AI Backend Engineer — Production Ready GenAI APIs

BME | Bolsas y Mercados Españoles is seeking a Senior AI Backend Engineer to join the AI Engineering team. This role focuses on backend ownership, APIs, and integrations for AI productization in GenAI and Data Mining areas. The ideal candidate will have deep proficiency in Python, with experience in de ...

CRM Integration Engineer Flexible Hours, Hybrid, AI Ready

Zenzorrito Tecnologías SL, part of Badger Maps Inc., is seeking a CRM Integration Engineer in Granada. In this role, you will design and build integrations with various CRM platforms, ensuring reliability and scalability. You will collaborate closely with product and engineering teams, determining inte ...

Remote Senior Python Data Scraping Engineer AI Pilot

Mindrift is seeking a highly skilled Senior Python Data Scraping Engineer for a part-time remote role. You will drive specialized data scraping workflows within the Tendem project and collaborate with AI agents to ensure accurate and actionable results. The ideal candidate has a strong background in we ...

Senior Backend Engineer for AI Ready Cloud Platforms

SEPTEO is seeking a skilled Backend Developer to design and implement high-performance backend services for the hospitality industry. You'll engage in architectural decisions and work with cross-functional teams to drive platform evolution. We value your expertise in Java, Spring Boot, and cloud-native ...

Senior AI Native Full Stack Engineer (Remote/Barcelona)

Nerdleveltech is hiring a Full-Stack Developer in Barcelona, crucial for building and scaling AI-driven platforms. You will be part of a modern tech team working on exciting projects. The ideal candidate has strong skills in TypeScript and Python, with experience in API integrations and database manage ...

GenAI Full Stack Engineer — Production Ready AI Applications

Cavendish Professionals is looking for a GenAI Engineer based in Barcelona, Cataluña. The ideal candidate will be skilled in building scalable systems using Python and GenAI, while enjoying a modular service-oriented environment. Key requirements include over 5 years of experience, Full Stack capabilit ...

ML Engineer, Earth Sciences Climate AI, Flexible Hours

The Barcelona Supercomputing Center (BSC) seeks a Machine Learning Engineer for its AI Factory within the Earth Sciences Department. The position involves supporting AI software, designing machine learning pipelines, and collaborating on projects. This full-time role offers a stimulating environment, f ...

Senior Software Engineer | Remote | AI SaaS Software Role

Senior Software Engineer | Remote | AI SaaS Software Role Remote | UTC-6 to UTC+2 Who we are: Process Street is an AI software and compliance operations platform startup from San Francisco. We help our customers build, document, automate, and track recurring workflows. Our platf ...

Junior Product Engineer Real Time AI for Healthcare

Useprosper is seeking a Product Engineer in Barcelona to design and build innovative AI Phone Agents for healthcare. This full-time role requires experience in product development and a solid understanding of technologies like FastAPI and PostgreSQL. The ideal candidate has a passion for product owners ...

Associate AI Value Engineer — Global, Travel to Japan

Process Analytics Factory - PAFnow by Celonis is seeking an Associate AI Applied Engineer in Madrid to support our clients in Japan. This role involves collaborating with customers to determine how our Celonis Process Intelligence can help achieve their business objectives. Ideal candidates will have a ...

Generative AI Engineer | Hybrid (Remote 2d/wk) & Growth

CORUS Consulting busca un/a Ingeniero/a de IA Generativa en Madrid para trabajar en proyectos del sector asegurador. Se requiere experiencia de al menos 6 años en ingeniería de software con foco en IA Generativa y habilidades en diseño de soluciones innovadoras. Ofrecemos un entorno de trabajo dinámico ...

Software Engineer | AI x Fintech | Founding Engineering Team

About the opportunity This is not a typical engineering hire. This is a founding seat inside the Barcelona office of a fast growing, well-funded company building the financial infrastructure layer for AI agents. You will work alongside an experienced founding team with strong backing, hig ...

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