149,513+ Ai Driven Fullstack Engineer Java React Jobs in Spain — Top Companies Hiring June 2026

Professional job seekers finding Spain jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

GTM Engineer AI Growth & Experimentation Lead

Bridged - Event Growth Platform is an AI startup in Almería looking for a Growth Engineering professional to implement AI-driven workflows and optimize GTM campaigns. You will be involved in automated enrichment and CRM optimization. Applicants should have over 2 years of relevant experience and a stro ...

AI Solutions Engineer — Build Intelligent Automation

AION Solutions is seeking an AI Solutions Engineer for a hybrid position based in Barcelona. The role involves building AI systems for various clients, directly collaborating with the founding team to implement effective solutions. Ideal candidates should have hands-on experience with LLM platforms and ...

Senior AI Engineer — People & Talent Transformation

Traveltechessentialist in Barcelona seeks a Senior AI Engineer to enhance internal operations through AI. You'll tackle complex business challenges and create scalable solutions that significantly impact the business.Join the People & Talent team and work closely with domain experts and cross-functional A ...

AI & MLOps Engineer (Cloud, Python) – Hybrid

Linde Material Handling is hiring for a role focused on AI and machine learning solutions in Barcelona. Candidates will design, build, and implement innovative AI applications, working with cloud technologies and data analytics. The position requires 3+ years of experience in AI, proficiency in Python, ...

Senior Platform Engineer / AI Infra / MLOps

Quiénes somos: En h&k creemos que las grandes cosas se logran en equipo. Somos una consultora tecnológica especializada en Microsoft, IA y consultoría con más de 30 años de experiencia en proyectos Cloud dentro del ecosistema de Microsoft y la energía de un equipo joven que comb ...

Software Engineer (Python & Generative Ai) (Granada)

Responsabilidades Diseñar y desarrollar agentes conversacionales con IA Generativa y arquitecturas multiagente. Desarrollar el backend del asistente utilizando Python y FastAPI. Trabajar sobre Google Cloud Platform (Kubernetes, Pub/Sub, Secret Manager, Vertex AI). Integr ...

Senior Robotics AI and Simulation Engineer

ABOUT THE ROLE In this role, you will design and develop AI-driven robotics solutions for clients across healthcare, retail, automotive, and enterprise sectors. You will build production-ready systems and rapid prototypes - from perception pipelines to reinforcement learning workflows – that br ...

Senior Platform Engineer / AI Infra / MLOps

Quiénes somos: En h&k creemos que las grandes cosas se logran en equipo. Somos una consultora tecnológica especializada en Microsoft, IA y consultoría con más de 30 años de experiencia en proyectos Cloud dentro del ecosistema de Microsoft y la energía de un equipo joven que comb ...

Generative AI Engineer — Hybrid, Global Projects

Sectorea, empresa multinacional tecnológica en Valencia, busca un profesional para desarrollar soluciones de Inteligencia Artificial Generativa. El puesto implica trabajar en un proyecto internacional con tecnologías punteras en entornos DevOps. Los candidatos ideales tendrán experiencia en desarrollo ...

FPGA Design Engineer (Imaging & AI Acceleration)

Auxo Talent is seeking an experienced FPGA Design Engineer in Barcelona, Spain to develop next-generation satellite imaging payloads. In this hands-on role, you will focus on designing robust FPGA solutions for demanding imaging applications by collaborating with hardware and software teams in an agile enviro ...

AI Engineer (Santa Cruz de Tenerife)

Participa en un innovador proyecto del sector farmacéutico, aportando al equipo tu experiencia como AI Engineer- E2E Content Manager. En ALTEN tenemos claro que el éxito de nuestros proyectos se debe a las personas que forman nuestro equipo. Por eso, si tienes experiencia como AI Engineer- E2E Conte ...

AI Generative & Agents Engineer (Hybrid Madrid)

Mapfre busca un/a ingeniero/a de IA en Madrid para un rol híbrido. La posición implica diseñar e implementar soluciones de ML y agentes de IA, trabajando colaborativamente con equipos multidisciplinares. Se requiere experiencia en modelos de ML y conocimientos sólidos en IA generativa. Los candidatos deberán ten ...

AI Solutions Engineer — Build Intelligent Automation

AION Solutions in Barcelona is looking for an AI Solutions Engineer to innovate AI systems tailored to business challenges. You'll collaborate directly with the founders to design and deploy AI agents and automation workflows for our diverse clients. Your role encompasses project management, solution a ...

Senior AI Engineer donostia san sebastián

¡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 reto cualificado, ...

AI Solutions Engineer — Build Intelligent Automation

AION Solutions is seeking an AI Solutions Engineer in Madrid to transform business challenges into effective AI systems. The role involves building AI agents, automating workflows, and managing projects with the founding team. Ideal candidates will have hands-on experience with LLM platforms and automa ...

Senior Robotics AI and Simulation Engineer

ABOUT THE ROLE In this role, you will design and develop AI-driven robotics solutions for clients across healthcare, retail, automotive, and enterprise sectors. You will build production-ready systems and rapid prototypes - from perception pipelines to reinforcement learning workflows – that br ...

AI Systems Engineer (LLM & RAG Optimization)

Job Overview Airbus Defence & Space is looking for an LLM Inference Engineer to optimize the efficiency and scalability of Generative AI systems. The selected candidate will join the Architecture & Integration team at CLAEX, in Torrejón de Ardoz Air Base, with the goal of optimizing the deploymen ...

AI Solutions Engineer — Build Intelligent Automation

AION Solutions in Barcelona is looking for an experienced AI Solutions Engineer to join our team. In this role, you will transform business challenges into AI solutions, collaborating directly with our founding team. Your responsibilities will include developing conversational agents and ensuring the successf ...

Senior Backend Engineer — AI‑Powered Microservices

YAKEEY, based in Barcelona, is looking for a Senior Backend Developer to enhance our innovative PropTech platform. You will develop and maintain micro-services, ensuring architectural consistency and collaboration across teams. The ideal candidate has extensive backend experience with Java and Spring B ...

Real Time Energy Data & AI Engineer

Grenergy busca incorporar un/a Data & AI Engineer para diseñar soluciones de datos e IA que impacten en la operación de activos energéticos. Las responsabilidades incluyen construir pipelines de datos, diseñar arquitecturas de datos y desarrollar APIs REST. Se requiere al menos 5 años de experiencia en ...

Senior Ai & Nlp Engineer (Castro Urdiales)

Senior AI & NLP Engineer Location Brussels, Europe Job Summary We are looking for a Senior AI & NLP Engineer to develop and maintain NLP/ML/AI software, train models, and improve machine translation quality. Responsibilities Develop and maintain NLP/ML/AI ...

Lead AI Powered Backend Engineer (Remote)

Hopper is seeking a Backend Engineer (Python) to work remotely from Spain. In this full-time role, you will design, build, and maintain backend services using your expertise in Python and PostgreSQL. You’ll collaborate closely with team members to implement CI/CD pipelines and ensure systems are production-re ...

Generative AI Engineer — LLM & Prompt Expert

Mática Partners en Castro-Urdiales busca un experto en IA con sólida experiencia en Python y LLMs. El candidato ideal será responsable de la creación de prompts y la colaboración para construir aplicaciones seguras y escalables. Además, se ofrece un contrato indefinido y un salario de entre 38.000 y 44.000 eu ...

Generative AI Engineer — Growth, Flexibility & Impact

Ayesa Digital busca un Ingeniero/a Senior en Inteligencia Artificial Generativa en Vitoria. La posición requiere experiencia en soluciones de IA Generativa, programación en Python y uso de herramientas como Git. Valoramos conocimientos en Cloud y técnicas de Prompt Engineering. Ofrecemos flexibilidad h ...

Foundry Data Engineer: Pipelines & AI Solutions

A fast-growing AI consultancy based in Madrid is looking for a Data Engineer to join their agile teams. You will be responsible for designing and maintaining robust data solutions using the Foundry platform, optimizing data quality, and collaborating with software engineers and ML experts. The ideal candidate ha ...

Operational Excellence Engineer AI, Automation & RPA

RCD busca incorporar un/a Process & Quality Engineer en Barcelona para liderar la transformación hacia la excelencia operativa. El candidato ideal tendrá al menos 5 años de experiencia en mejora de procesos, conocimientos en automatización (Power Automate) y un alto nivel de inglés. Este rol ofrece autonomía par ...

Generative AI Engineer — Remote & Flexible Hours

Mática Partners, con sede en Huelva, busca un profesional especializado en IA Generativa con experiencia en Python y integración de LLMs. Se ofrece un contrato indefinido con un salario bruto anual de 38.000 a 44.000 euros, además de beneficios como formación especializada y horario flexible. Los candi ...

Senior Robotics AI and Simulation Engineer

ABOUT THE ROLE In this role, you will design and develop AI-driven robotics solutions for clients across healthcare, retail, automotive, and enterprise sectors. You will build production-ready systems and rapid prototypes - from perception pipelines to reinforcement learning workflows – that br ...

Remote Full Stack AI DevTools Engineer

Alan is seeking a talented full-stack software engineer to help build AI-native tools and enhance the developer experience. You will work closely with cross-functional teams to create a stimulating environment, shaping the infrastructure that enables both engineers and non-engineers to contribute to projects. ...

Generative AI Engineer — Hybrid, Global Projects

Sectorea, empresa multinacional tecnológica en Valencia, busca un profesional para desarrollar soluciones de Inteligencia Artificial Generativa. El puesto implica trabajar en un proyecto internacional con tecnologías punteras en entornos DevOps. Los candidatos ideales tendrán experiencia en desarrollo ...

Frontend Engineer: Microfrontends & AI Tooling (Hybrid)

Grupo Digital en Madrid busca un Frontend Developer con más de 3 años de experiencia en el desarrollo y mantenimiento de aplicaciones bajo arquitecturas avanzadas. El candidato ideal tendrá sólida experiencia en microfrontales y herramientas de programación reactiva. Se ofrece un contrato indefinido en ...

Senior Platform Engineer / AI Infra / MLOps

Quiénes somos: En h&k creemos que las grandes cosas se logran en equipo. Somos una consultora tecnológica especializada en Microsoft, IA y consultoría con más de 30 años de experiencia en proyectos Cloud dentro del ecosistema de Microsoft y la energía de un equipo joven que comb ...

GenAI Engineer: AI Agents & Automation Specialist

CGC Solutions busca incorporar un/a GenAI Engineer / AI Agent Developer apasionado/a por la Inteligencia Artificial Generativa para innovadores proyectos en el sector financiero y bancario internacional. El puesto requiere un grado en Ingeniería Informática o áreas relacionadas, junto con experiencia d ...

Freelance Optical Engineer & AI Challenge Designer

Mindrift is seeking candidates to design original optics problems simulating real physics research workflows for AI projects. The role involves ensuring computationally intensive problems are created, requiring a deep understanding of mechanics, electromagnetism, thermodynamics, and quantum mechanics. ...

Generative AI Backend Engineer | GraphQL & FastAPI

Astek Iberia is seeking a passionate Backend Engineer to join our fintech partner in Valencia, Spain. You will help build scalable and secure AI-powered systems, maintaining robust services and designing GraphQL APIs. The ideal candidate holds a degree in Computer Science or related fields, has 1-2 yea ...

Senior AI Engineer: Agent & LLM Systems

Publicisgroupe is looking for a Senior Software Engineer specialized in AI to design and evolve agent-based architectures. You will collaborate closely with cross-functional teams to build solutions that enhance how brands operate. The ideal candidate has a strong background in Python, asynchronous dev ...

Senior Generative AI Engineer Growth & Impact

¡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 reto prof ...

Backend Engineer: Python & Generative AI (Remote)

Capitole está buscando un Software Engineer (Python + AI) para unirse a un innovador proyecto de IA conversacional. El rol implica diseñar y desarrollar agentes conversacionales, así como desarrollar el backend utilizando Python y FastAPI. Se requiere experiencia en programación asíncrona, integración ...

Software Engineer (Python & Generative AI) (Ávila)

Descripción del puesto Estamos buscando un Software Engineer (Python + AI) para unirse a uno de los proyectos más innovadores dentro del ecosistema de IA conversacional. Formarás parte del equipo responsable de evolucionar un asistente conversacional basado en arquitecturas Agentic AI que da servi ...

AI Integration Engineer | MLOps & LLM Pipelines

Ust is seeking an experienced AI Integration Engineer to integrate AI capabilities in enterprise software. This hybrid role in Madrid involves owning AI integration processes, collaborating with product engineers, and ensuring system scalability and compliance. The ideal candidate will have at least 4 ...

Senior Robotics AI and Simulation Engineer

ABOUT THE ROLE In this role, you will design and develop AI-driven robotics solutions for clients across healthcare, retail, automotive, and enterprise sectors. You will build production-ready systems and rapid prototypes - from perception pipelines to reinforcement learning workflows – that br ...

Junior AI & Data Engineer (Frontend/Backend)

Linknovate, ubicada en Monterroso, Galicia, busca un ingeniero de software para unirse a su equipo en proyectos innovadores de IA y RAG. Esta posición puede abarcar tanto frontend como backend, y brinda amplias oportunidades de crecimiento profesional. Los candidatos deben tener estudios en Ingeniería ...

Platform Engineer – Regulated AI Cloud & Infra

A leading enterprise AI company in Barcelona seeks a backend engineer to design and manage cloud infrastructure across Azure and AWS. You will ensure the reliability, scalability, and security of products while collaborating closely with engineering teams. The role requires strong skills in container orchestrati ...

Remote Python & Generative AI Backend Engineer

Capitole busca un Software Engineer (Python + AI) que se una a su equipo innovador. Se trabajará en un asistente conversacional basado en arquitecturas de IA que atiende a millones de clientes a nivel mundial. El puesto es híbrido y ofrece flexibilidad horaria, un presupuesto de formación, y beneficios ...

Remote Python & Generative AI Backend Engineer

Capitole busca un Software Engineer (Python + AI) que se una a su equipo innovador. Se trabajará en un asistente conversacional basado en arquitecturas de IA que atiende a millones de clientes a nivel mundial. El puesto es híbrido y ofrece flexibilidad horaria, un presupuesto de formación, y beneficios ...

Founding Senior Applied AI Engineer Madrid

Naiian busca un profesional para convertir conocimiento difuso en activos operativos, estructurando taxonomías y creando sistemas de evaluación funcional. Se requiere experiencia en retrieval y NLP, con capacidad para definir métricas precisas y trabajar en equipo. La modalidad es 100% presencial en Ma ...

Senior AI Platform Engineer – Data & ML

Clarivate is seeking a Lead Software Engineer – AI Product Development to join our team in Barcelona. This role involves designing and developing AI-powered software, leading backend services, and collaborating across teams. Ideal candidates will have a Bachelor’s degree, strong experience in Python an ...

AI Solutions Engineer — Build Intelligent Automation

AION Solutions is seeking an AI Solutions Engineer in Barcelona for a hybrid role focused on turning business challenges into AI systems. You will work directly with the founding team to design and deploy automation workflows and AI agents. Key responsibilities include project management and building client s ...

AI Powered Software Engineer & Coding Coach

Amaris Consulting in Ibiza is looking for a Software Engineer to lead AI-assisted development. This role combines engineering, governance, and coaching, ensuring teams effectively use AI in crafting applications. The ideal candidate has 5-10 years of experience in software engineering, strong programmi ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Buffering Video...

    Ai Driven Fullstack Engineer Java React Jobs in Spain Job Search Guide, Trends and Insights