26,442+ Fullstack Ai Engineer Python Php Reactnextjs Jobs in Spain — Top Companies Hiring July 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

Machine Learning Engineer 100% (f/m/d)

At Julius Baer, we celebrate and value the individual qualities you bring, enabling you to be impactful, to be entrepreneurial, to be empowered, and to create value beyond wealth. Let’s shape the future of wealth management together. We are seeking a skilled machine learning engineer (ML Eng) to jo ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO)

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | ✈️ Regular travel to South America | Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder someone excited by ambiguity, ...

Founding Software Engineer (Path to CTO) (Madrid) Madrid, Comunidad de Madrid, Spain

Founding Software Engineer (Path to CTO) Remote (Europe preferred) | Regular travel to South America Partner Company – AgTech / IoT Startup (Pre‑seed) This is not a typical engineering role. We’re not looking for someone who just wants to write code. We’re looking for a builder who is excited by ambiguity, owner ...

Machine Learning Engineer

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and st ...

Data Analytics/Power BI

En ALOVIA Consulting estamos en bsqueda de un/a Data Engineer Modalidad: : Hibrido (2 das presencial) Localizacin: Palma de Mallorca Funciones : Diseo de Dashboards y Data Storytelling (Front-End BI): consumir los modelos de datos ya estructurados para disear, desarrollar y desplegar paneles visuales atractivos, ...

Java/Kotlin Internal Tools Developer

We’re looking for a Java/Kotlin Engineer who will develop tools and pipelines related to AI, rendering, data conversion, and similar areas. Tech Stack Languages: Kotlin, Python Core development: Kotlin/JVM, Java, coroutines, serialization, reflection, dependency injection ...

Lead Technical Marketing Engineer Data Center Networking

Cisco is seeking an experienced Technical Marketing Engineer (TME) specializing in Data Center Networking architectures and AI networking solutions. The role focuses on driving enablement, developing collateral, and engaging with customers and partners to showcase Cisco Nexus portfolio across Unified Networki ...

Senior Software Engineer

Aircall is a unicorn, AI-powered customer communications platform used by 22,000 companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum c ...

Staff Engineer

Aircall is a unicorn, AI-powered customer communications platform used by 22,000 companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum c ...

Senior Software Engineer

Aircall is a unicorn, AI-powered customer communications platform used by 22,000 companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum c ...

Backend Engineer Node.js + IA (Semipresencial Barcelona)

Oportunidad¿Es usted el candidato adecuado para esta oportunidad? Asegúrese de leer la descripción completa a continuación.Fullstack Engineer en una multinacional del sector insurance / financial services , participando en un proyecto innovador de GenAI . Modalidad semipresenc ...

Senior Data Engineer

Visium combines strategy, frontier AI, and deep regulated‑industry expertise to build and deploy AI‑native systems that reinvent how businesses operate — unlocking the value of AI at scale. We’re not a strategy firm that ships slide decks and walks away. Not a tech consultancy that builds what won’t get adopt ...

Data Science Cum Mlops, Madrid (On Site) – International Client

Data Science cum MLOps, Madrid (on-site) – International ClientPor favor, verifique que tiene el nivel de experiencia y las cualificaciones adecuadas leyendo la descripción completa de esta oportunidad a continuación.Job role: Data Science cum MLOps. Minimum experience: </b ...

Solutions Architect (FDE)

Who We Are At Kyndryl, we run and reimagine the mission‑critical technology systems that drive advantage for the world’s leading businesses. We are at the heart of progress; with proven expertise and a continuous flow of AI‑powered insight, enabling smarter decisions, faster innovation, and a las ...

Senior Full Stack Engineer

Overview The Senior Full Stack Engineer will build and own product features working closely with the tech leadership. You will contribute to both frontend and backend systems, helping ship high quality software that is used daily by customers. This role is focused on delivery, quality and collabor ...

Product Designer (AI Native)

Overview Legacy company formation is a bug. We're debugging it. Lovie turns legal infrastructure into software infrastructure — company formation, EIN filing, registered agent, and compliance delivered through an MCP and API. Founders spin up a Delaware or Wyoming entity in two minutes from their ...

AI Fashion Visuals Specialist

Overview Pixofix is a creative powerhouse at the intersection of fashion, imagery, and AI innovation. We deliver premium, brand-aligned visuals and videos for global fashion clients — blending human creativity with cutting-edge AI workflows. Pixofix's new AI content studio, PXAI-1, is redefining h ...

Lead Specialist, AI Scientist

AI Scientist / Engineer – Speech Language ModelRole SummaryThe AI Scientist / Engineer – Speech Language Models leads the design, development, andevaluation of AI systems for language assessment, real‑time feedback, and skills evaluation. The rolefo ...

Advanced Specialist, AI Scientist

**ROLE:** Senior AI Scientist**Role aim**Are you passionate about AI and Education? We are thrilled to announce a great opportunity to join our international AI organization inside the English Language Learning division as a Senior AI scientist for one of the most critical product ...

Gen AI Creative Specialist

**Company description** Publicis Groupe, the world's second largest communications group that is present in more than 100 countries and has more than 98,000 employees. With a unique work philosophy, The Power of One puts clients at the center by promoting the growth of their business through creative ag ...

AI Adoption & Enablement Leader

**Job Description Summary**The AI Adoption & Enablement Leader drives the adoption of new AI tools and technologies, skills development, and change management across Wind Engineering. This role ensures that new AI capabilities are not only introduced, but effectively adopted, trusted, and sustained in day-to ...

AI Manager Technology Advisor

**Who We Are** At Kyndryl, we run and reimagine the mission-critical technology systems that drive advantage for the world’s leading businesses. We are at the heart of progress; with proven expertise and a continuous flow of AI-powered insight, enabling smarter decisions, faster innovation, and a lasti ...

Internship Program AI Solutions

Would you like to start your professional career in the Pharmaceutical Industry and become part of our talent community? If you are in your final year of your University Degree or pursuing a Master's/Postgraduate in areas such as Health Sciences, Engineering, Business Administration, Communication, Info ...

Business Design & AI Transformation

About the role Join us as a Business Design &amp; AI Transformation Consultant to help our clients rethink and evolve their business models through the combination of strategy, design, data, and emerging technologies. You will play a key role connecting business ambition with execution, shaping innovative so ...

Senior AI & Automation Specialist

**Job Requisition ID #** 26WD97212 **26WD97212, AI & Automation Specialist** _French translation to follow!/Traduction française à suivre!_ **Position Overview** The Senior AI & Automation Specialist will bring a strong background in artificial intelligence, knowledge ...

Senior Data Engineer Healthcare Data Pipelines & Integration

Tiet AI is looking for a Senior Data Engineer in Madrid to lead healthcare integration and pipeline delivery across Hydra Connect and Hydra Platform. This role involves turning complex hospital data feeds into reliable data workflows. You will play a key role by collaborating with another data engineer ...

Senior MLOps Engineer: Build a Scalable Agentic Platform

Nn-Group is seeking a Senior MLOps Engineer to transform Databricks Mosaic AI into a self-service platform. Your role will include building and productizing AI capabilities, overseeing model deployment, and ensuring optimal performance across topologies. The position offers a hybrid work model with competitive b ...

Senior Backend Engineer: Edge to Cloud, Scalable Systems

Hivemq in Madrid is seeking a skilled software engineer to join their Industrial AI Platform team. The role requires expertise in developing and shipping reliable software, as well as a strong background in software engineering. Candidates should be comfortable with modern development tools and methodologies. Re ...

Senior Backend Engineer: Edge to Cloud, Scalable Systems

Hivemq in Madrid is seeking a skilled software engineer to join their Industrial AI Platform team. The role requires expertise in developing and shipping reliable software, as well as a strong background in software engineering. Candidates should be comfortable with modern development tools and methodologies. Re ...

Senior Backend Engineer: Edge to Cloud, Scalable Systems

Hivemq in Madrid is seeking a skilled software engineer to join their Industrial AI Platform team. The role requires expertise in developing and shipping reliable software, as well as a strong background in software engineering. Candidates should be comfortable with modern development tools and methodologies. Re ...

Senior Backend Engineer: Edge to Cloud, Scalable Systems

Hivemq in Madrid is seeking a skilled software engineer to join their Industrial AI Platform team. The role requires expertise in developing and shipping reliable software, as well as a strong background in software engineering. Candidates should be comfortable with modern development tools and methodologies. Re ...

Senior Backend Engineer: Edge to Cloud, Scalable Systems

Hivemq in Madrid is seeking a skilled software engineer to join their Industrial AI Platform team. The role requires expertise in developing and shipping reliable software, as well as a strong background in software engineering. Candidates should be comfortable with modern development tools and methodologies. Re ...

Full Stack Engineer (Los Altos)

Company Overview Cheiron is a Stanford-founded AI company building an AI-native operating system for the pharma, biotech, and broader life sciences industry. Since launching in 2024, we’ve rapidly grown our global user base. In Korea, we reached 22% of industry users within six months and ...

Data Science cum MLOps, Madrid (on site) – International Client

Data Science cum MLOps, Madrid (on-site) – International ClientPor favor, verifique que tiene el nivel de experiencia y las cualificaciones adecuadas leyendo la descripción completa de esta oportunidad a continuación.Job role: Data Science cum MLOps. Minimum experience: 6 to ...

Full Stack Engineer Product Vision

We're looking for a Full Stack Engineer for one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry. Asegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción d ...

Lead Specialist, AI Scientist

AI Scientist / Engineer – Speech Language Model Role Summary The AI Scientist / Engineer – Speech Language Models leads the design, development, and evaluation of AI systems for language assessment, real‑time feedback, and skills evaluation. The role focuses on speech recognition, spoken language modelin ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

Production Engineer (Merindad de Sotoscueva)

Job Summary We are looking for a hands‑on Production Engineer to help build rack, run benchmark tests, and troubleshoot the customized HPC/AI/Cloud infrastructure related products for our customers. The role involves in‑house total solution implementation and on‑site HPC project deployment. You will be part of a ...

🚀 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

    Fullstack Ai Engineer Python Php Reactnextjs Jobs in Spain Job Search Guide, Trends and Insights