• Spain Jobs Expertini profile avatar

    • Ai Solution Engineer Fullstack Junior Rails Engineer Barcelona Spain Jobs: 5,635+ Job Opportunities in Les, Spain

    Professional job seekers finding Spain jobs through Expertini
    750,000+ professionals on Expertini 750,000+ Candidates
    Join our global community
    Explore Leading Employers
    High-Paying Careers
    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.

    1. Expertini
    2. Spain
    3. Jobs
    4. Ai Solution Engineer Fullstack Junior Rails Engineer Barcelona Spain Jobs in Spain

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Ai Solution Engineer Fullstack Junior Rails Engineer (Barcelona, Spain)

    About Caravelo At Caravelo , we’re building the only subscription platform purpose-built for travel, combining the best of travel tech and fintech . From our Barcelona HQ, we help airlines and travel brands boost profitability through smart, scalable solutions. Now, we ...

    Ai Solution Engineer Full Stack / Rails Engineer (Barcelona)

    ## **JOB DESCRIPTION:****ABOUT LINGO** Lingo is building a cutting‑edge digital health platform that fuses continuous biosensor data, high‑performance backend engineering, and advanced analytics to help people live healthier, longer, fuller lives. Our systems process massive volumes of real‑time data, and the ba ...

    Ai Solution Engineer Full Stack / Rails Engineer (Barcelona)

    6 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Overview Yuma AI is building a complete orchestration platform that deploys autonomous AI agents dedicated to customer support in e-commerce. We are one of the leaders in this space, ...

    Ai Product Focused Senior Fullstack Rails Engineer (Europe)

    3Commas.Iois a leading developer of cryptocurrency trading software, building the leading automation platform for crypto trading —turning complex markets into simple yet powerful algorithmic strategies.Our AI-driven bots (DCA, Grid, Signal), deep integrations with TradingView, and a robust API enable ...

    Fullstack Engineer

    2 days ago Be among the first 25 applicantsAt Bending Spoons, we’re striving to build one of the all-time great companies. A company that serves a huge number of customers. A company where team members grow to their full potential. A company that functions at unparalleled levels of effectiveness and effici ...

    Fullstack Software Engineer

    Join to apply for the Lead Fullstack Software Engineer role at Wizeline 1 day ago Be among the first 25 applicants Join to apply for the Lead Fullstack Software Engineer role at Wizeline Get AI-powered advice on this job and more exclusive features. ...

    Fullstack Software Engineer

    Our client, a fast-growing organization leveraging AI-driven technology, is looking for a motivated Full Stack Developer to join our product and engineering team. If you are passionate about building scalable applications that generate real impact and want to work in a dynamic, data-driven environment, t ...

    Security Engineer Red Team Barcelona, Spain

    Workato transforms technology complexity into business opportunity. As the leader in enterprise orchestration, Workato helps businesses globally streamline operations by connecting data, processes, applications, and experiences. Its AI-powered platform enables teams to navigate complex workflows in real-time ...

    Senior Software Engineer, Ruby/Ror (Onprem)

    Senior Software Engineer, Ruby/RoR (Onprem) Barcelona, Spain; Madrid, Spain Responsibilities We are looking for an exceptional Senior Ruby/Rails Developer to join our growing Data Integration team. In this role, you will be responsible for building parts of Workato’s ...

    Ai Engineer Remote

    Predictable Machines is building the next generation of verifiable AI systems—combining cutting-edge language models with formal verification, functional programming, and mathematical rigor. We're seeking a Verification-Focused AI Engineer who thrives at the intersection of AI capabilities and math ...

    Accelerator Ai Engineer

    At AGAP2 we are looking for an AI Engineer to join one of our key clients in the aeronautical sector , contributing to innovative Artificial Intelligence projects with real business impact. As part of this team, you will play a central role in designing, developing, and deplo ...

    Ai/Ml Engineer

    Keysight is on the forefront of technology innovation, delivering breakthroughs and trusted insights to the world’s visionaries and innovators in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automo ...

    Generative Ai Engineer

    Hola Consultores S.L. somos una empresa especializada en la provisión de Servicios TIC e Ingeniería para la gestión empresarial. Trabajamos diseñando soluciones a medida de las necesidades de nuestros clientes. Nos enorgullece ser una empresa 2.0 innovadora donde las p ...

    Fullstack Developer

    Get AI-powered advice on this job and more exclusive features. At the Würth Elektronik Group, we produce and sell electronic components such as printed circuit boards, electronic components, electromechanical elements and complete system assemblies. The Group is internationally active in various marke ...

    Principal Client Engineer Stumble Guys Es Barcelona, Spain

    # Senior Client Engineer - Stumble Guys## Barcelona (Spain)Dundee (Scotland)ScopelyFull TimePosted 2 days agoScopely is looking for a Senior Client Engineer to join our Stumble Guys team in Barcelona or Dundee on a hybrid basis working 3 days a week from the hub.At Scopely, we care deeply about what we do and wa ...

    Design Engineer (Barcelona)

    Would you like to be part of a global company that leads in innovation and intralogistics technology? Mecalux is one of the world's leading companies in the storage systems market, with over 55 years of experience. It is a pioneer in implementing advanced technologies for the design, manufacturing, and co ...

    Embedded System Developer

    4 days ago Be among the first 25 applicants Build a career powered by innovations that matter!At Novanta, our innovations power technology products that are transforming healthcare and advanced manufacturing—improving productivity, enhancing people’s lives and redefining what’s possible. We create for our ...

    Ai Senior Software Engineer

    5+ years of experience as a Senior Software Engineer designing and implementing complex solutions. Strong knowledge of software architecture patterns and SOLID principles Advanced hands-on expertise with GitHub Copilot, including the ability to document best practices and provide c ...

    Ai R&D Engineer

    Get AI-powered advice on this job and more exclusive features. The Role As a Senior AI R&D Engineer, you will explore novel approaches to AI model and AI architecture design, coordination and deployment strategies, and multi-agent systems and their integration with custom silicon ...

    Junior Ai Catalyst

    DOMINION es una compañía multinacional, cotizada en la Bolsa española, especializada en servicios multitecnológicos y proyectos de ingeniería en cuatro grandes áreas: Tecnología, Telecomunicaciones, Industria y Energía. Con presencia en más de 35 países, un equipo de más de 10.000 profesionales y una car ...

    Application Engineer For Motion Control

    Join to apply for the Application Engineer for Motion Control role at Novanta Inc. Continue with Google Continue with Google 1 month ago Be among the first 25 applicants Join to apply for the Application Engineer for Motion Control </stron ...

    Junior Field Robotics Engineer

    About Agrikola AI Agrikola AI is on a mission to eradicate chemical pesticides and reduce the carbon footprint of agriculture through AI and Robotics. We are a start-up helping farmers automate their farms and focuses on replacing pesticide with robotic applications to prevent fungi, weeds, and other ...

    Account Risk Engineer (Barcelona)

    Overview The Presales Engineer will understand client challenges, demonstrate solutions, and guide them through the technical aspects of the sales process. Role ...

    Backend Engineer Barcelona & Remote

    En Floorfy desarrollamos soluciones innovadoras de realidad virtual para el sector inmobiliario , permitiendo a las agencias y promotoras mostrar propiedades mediante tours virtuales inmersivos en 3D . Somos líderes en virtualización de espacios 3D en Europa y Latino Ame ...

    Hse Design Engineer Barcelona

    Overview En Ayesa no esperamos al futuro, lo lideramos. A través de nuestros proyectos de #ingeniería lo hacemos posible, convirtiendo retos en oportunidades, conceptos en soluciones y visión en impacto real. Paso a paso nos acercamos a un futuro mejor. Con tu pasión, talento y determinación, seguiremos tr ...

    Fullstack Tech Lead/Manager, Ai Focused

    Workfully · Full-Stack Technical Lead/Manager – AI Focused(JS/Typescript/React) At Workfully, our mission is to give everyone a fair chance at building a better world. We're creating the first global recruitment marketplace where independent recruiters can grow, engage, and monetize their talent ...

    Senior Ai/Computer Vision Engineer

    Your mission About Didit: We are one of the fastest-growing identity companies in the world, redefining industry standards with an open, flexible, and radically more affordable platform. Our product, superior to existing alternatives, combines advanced biometric technology with unique features like f ...

    Senior Engineer Ai Product Innovation

    Join us as a Senior Engineer - AI Product Innovation Want to do work that really matters? At Checkatrade, we’re building the UK’s go-to home improvement marketplace. Every day, we help millions of homeowners find the right tradesperson for the job, fast, fair, and without the faff. AI is ...

    Ai Research Engineer (Fine Tuning)

    MISIÓN La persona incorporada se encargará de supervisar el desempeño técnico del equipo a su cargo, garantizando una gestión eficaz de los planes operativos definidos y contribuyendo al fortalecimiento del departamento mediante el desarrollo de su área de negocio. FUNCIONES Plani ...

    Sat Barcelona, Província De Barcelona, Spain

    Desde LHH buscamos un/a técnico/a SAT para una importante empresa con presencia a nivel internacional fabricante de maquinaria para el sector farmacéutico. ¿ QUE TE OFRECEMOS? Contrato indefinido Formación continuada Plan de retribución flexible <l ...

    Sat Barcelona, Província De Barcelona, Spain

    Overview Desde Icfide estamos en búsqueda de un/a Técnico/a SAT Junior, para una empresa líder en soluciones de envasado y procesado, de los sectores farma y alimentación. Formarás parte del Departamento SAT, un área clave especializada en la implementación de maquinaria en casa del cliente, ...

    Security Operations Engineer (M/F/D)

    Join to apply for the Staff Security Operations Engineer role at Canonical 3 months ago Be among the first 25 applicants Join to apply for the Staff Security Operations Engineer role at Canonical Get AI-powered advice on this job and more exclusive f ...

    Fullstack Tech Lead/Manager, Ai Focused

    Workfully · Full-Stack Technical Lead/Manager – AI Focused(JS/Typescript/React) At Workfully , our mission is to give everyone a fair chance at building a better world. We're creating the first global recruitment marketplace where independent recruiters can grow, e ...

    Cfo Barcelona, Cataluña, Spain

    At AstroPay, we believe in empowering people to reach their full potential and to be part of an innovative and forward-thinking company. Our goal is to provide a cutting-edge online ...

    Coo Barcelona, Cataluña, Spain

    About the Role We are seeking a COO to lead all our Heetch GMs (country managers) in our 5 main countries (France, Belgium, Algeria, Angola, Mali). This role blends a very strategic mindset, a deep understanding of the marketplace dynamics and the ability to lead GMs and teams. You will overse ...

    Ceo Barcelona, Cataluña, Spain

    About Us TravelPerk is a global travel and expense management platform. Its all-in-one platform gives travelers the freedom they want whilst providing companies with the control they need. The result saves time, money, and hassle for everyone. TravelPerk has industry-leading travel inventory a ...

    Ai Cloud Architect

    3 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Arxadais a global specialty chemicals business that’s committed to solving the world’s toughest preservation challenges through better science. (With a proud history of innovation dating back more tha ...

    Continuous Improvement Planning Specialist Barcelona Spain Barcelona, Spain Supply Chain

    Hello! We are Volotea, the airline of small and mid-sized cities in Europe. Are you ready to jump into the heart of airline operations? Join our Supply Chain team and help keep our A320 fleet flying safely and on time ! As a Supply Chain Specialist you’ll work closely with ...

    Junior Salesforce Engineer Quick Commerce

    2 days ago Be among the first 25 applicants As the world’s pioneering local delivery platform, our mission is to deliver an amazing experience, fast, easy, and to your door. We operate in over 70+ countries worldwide, powered by tech, designed by people. As one of Europe’s largest tech platforms, we enable creat ...

    Helpdesk Engineer (Hybrid/Barcelona Office)

    Helpdesk Engineer (Hybrid/Barcelona office) Join to apply for the Helpdesk Engineer (Hybrid/Barcelona office) role at Welltech About Welltech Welcome to Welltech—where health meets innovation! As a global leader in Health & Fitness industry, we’ve crossed over 200 million installs with five life-c ...

    Backend Engineer Python (Web3), Barcelona

    Overview Backend Engineer Python (Web3) We simplify wealth creation. Founded in 2014 in Vienna, Austria by Eric Demuth, Paul Klanschek and Christian Trummer, were here to help people trust themselves enough to build their financial freedom - for now and the future. Our user-friendly, trade-eve ...

    Senior Front End Engineer Remote

    We are looking for a Senior Front-End Engineer to work with us full-time in a remote setup for our Spain-based client. For this role, we only process candidates that are based Philippines and have legal authorization to work in the Philippines. About the OTA Client: </st ...

    29/10/2025 Generative Ai Engineer

    Hola Consultores S.L. somos una empresa especializada en la provisión de Servicios TIC e Ingeniería para la gestión empresarial. Trabajamos diseñando soluciones a medida de las necesidades de nuestros clientes. Nos enorgullece ser una empresa 2.0 innovadora donde las personas so ...

    Ai Research Engineer (Fine Tuning) Remote

    Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate ...

    Principal Statistical Programmer

    Join to apply for the R Programming Lead role at IQVIA 3 days ago Be among the first 25 applicants Join to apply for the R Programming Lead role at IQVIA Join a sponsor-dedicated team and contribute to the advancement of in-house study activities ove ...

    Aftermarket Sales Engineer Spain And Portugal

    Aftermarket Sales Engineer - Spain and Portugal Join to apply for the Aftermarket Sales Engineer - Spain and Portugal role at Nikkiso Clean Energy & Industrial Gases . Unternehmensübersicht Nikkiso Clean Energy & Industrial Gases is a leading provider of cryogeni ...

    Europe Regional Market Sc Director Barcelona Spain Barcelona, Spain Supply Chain

    This is your opportunity to operate as a true strategic partner to Bacardi’s business operations in the Europe region. As the Regional Market Supply Chain Director, you will lead the development and execution of a comprehensive supply chain strategy to support significant company growth across Europe. ...

    Programador/A Fullstack .Net Angular Barcelona

    ¡En Ayesa crecemos contigo! En Ayesa no esperamos al futuro, lo lideramos. A través de la #tecnología y la ingeniería lo hacemos posible, convirtiendo retos en oportunidades, conceptos en soluciones y visión en impacto real. Paso a paso nos acercamos a un futuro mejor. Con tu pasión, tal ...

    Junior Ai Catalyst Sin Experiencia

    DOMINION es una compañía multinacional, cotizada en la Bolsa española, especializada en servicios multitecnológicos y proyectos de ingeniería en cuatro grandes áreas: Tecnología, Telecomunicaciones, Industria y Energía. Con presencia en más de 35 países, un equipo de más de 10.000 profesionales y u ...

    Senior Software Developer

    Senior Software Engineer (AI Tooling)Barcelona Permanent or Contract opportunities available €50,000 - €60,000 per annum €400 - €450 per day This is a unique engineering opportunity where the Senior Software Engineer will join a newly formed team responsible for investigating, 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 Prediction

    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 →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

      Ai-Solution-Engineer-Fullstack-Junior-Rails-Engineer-Barcelona-Spain Jobs in Les Job Search Guide, Trends and Insights