149,509+ Ai Driven Fullstack Engineer Java React Jobs in Spain — Top Companies Hiring June 2026

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Senior QA Automation Engineer – Data & AI Projects

Aubay Spain busca un Senior QA Automation Engineer para un proyecto clave en el sector de seguros. El rol implica acelerar la calidad y velocidad de entrega de productos digitales estratégicos. Se requiere más de 5 años de experiencia en QA Automation y conocimientos en herramientas como Playwright y P ...

Senior AI & Automation Engineer Finance & ERP Innovator

Entravision Digital - Global Advertising powered by Technology is looking for a Senior AI & Automation Engineer to join their Finance team. This role focuses on designing intelligent automation systems to enhance FP&A, compliance, and operational reporting. The ideal candidate will have over 5 years of ...

AI Platform & AIOps Engineer — Zero Trust & FinOps

OCA Group en Barcelona busca un profesional apasionado por la infraestructura para un rol innovador en un entorno de trabajo híbrido. La posición implica diseñar arquitecturas seguras, construir entornos de validación y gobernar la eficiencia en la integración de IA. Se valora la mentalidad de explorac ...

Senior Generative AI Engineer Python, AWS & RAG

act digital busca un perfil senior especializado en IA Generativa y desarrollo backend con Python. El candidato ideal participará en el desarrollo de agentes IA, sistemas RAG y arquitecturas basadas en microservicios sobre AWS. Se requiere experiencia en la creación de soluciones robustas desde el dise ...

Senior Generative AI Engineer | Python + AWS + RAG

Buscamos un perfil senior especializado en IA Generativa y desarrollo backend con Python, con experiencia construyendo soluciones robustas desde el diseño hasta producción. La persona participará en el desarrollo de agentes IA, sistemas RAG y arquitecturas basadas en microservicios sobre AWS. sD ...

Remote Backend Engineer (Python) — Scalable AI Systems

Bark.com is looking for a Backend Engineer to join our innovative team, working fully remotely from Spain. The role involves developing scalable features using Python and collaborating with teams to implement software solutions. Ideal candidates will have extensive experience in building APIs, managing ...

Remote Python Data Scraping Engineer — AI Pilot

Mindrift is seeking a skilled Python Data Scraping Engineer for a freelance role on the Tendem project. In this part-time remote position, you'll handle data scraping workflows, ensuring quality and accuracy while collaborating with AI agents. The ideal candidate has strong experience in web scraping, ...

Conversational AI Ops Engineer — Optimize Dialog Flows

Capitole busca un profesional con experiencia en Cognigy o plataformas de IA conversacional para unirse a su equipo en Valencia, España. El candidato ideal tiene más de 2 años de experiencia y será responsable de dar soporte técnico, gestionar incidentes y colaborar en la lógica de chatbots. Ofrecemos ...

Remote AI Solutions Engineer — Internal Tools & Analytics

Smartcat in Madrid seeks an AI tool developer to work fully remotely. The role involves optimizing internal AI systems, collaborating with the CEO and executive teams, and demanding familiarity with coding tools. Ideal candidates will have a basic understanding of Python, strong curiosity in AI, and ex ...

Lead AI/ML Engineer BCN/MAD/Munich

Full-time Your profile We are looking for Lead AI/ML Engineers who are passionate about building robust AI/ML systems: people who turn models into reliable, scalable products, and ensure our AI solutions are production-ready, efficient and impactful. Your job is to build and scale ...

Platform Engineer: Shape Scalable AI Data Platforms

Visium SA in Barcelona seeks talented individuals for the Platform Engineering team. You will design and implement cloud-native platforms while building data pipelines and developing software solutions. The ideal candidate has strong experience in data and cloud engineering, knowledge in ETL/ELT processes, and a ...

Senior UiPath Automation Engineer – Enterprise RPA & AI

Roboyo is seeking a Senior Intelligent Automation Engineer - UiPath to join our Delivery Team in Barcelona. This role involves designing and maintaining automation solutions using UiPath, contributing throughout the project lifecycle. Ideal candidates will have over 5 years of practical experience in UiPath, pos ...

Senior UiPath Automation Engineer Enterprise RPA & AI

Roboyo Group in Barcelona seeks a Senior Intelligent Automation Engineer specializing in UiPath to lead the design and development of automation solutions. You will collaborate with a global team to enhance efficiency and digital transformation using advanced UiPath technologies. Ideal candidates possess over fi ...

AI Model Engineer: Embeddings & High Perf Architectures

FastS3, Inc. is seeking an AI Model Engineer in Madrid to build the backbone for AI-native data infrastructure. The role involves designing and optimizing embedding models and high-performance neural architectures for large datasets. Key responsibilities include model evaluation and collaboration with engineerin ...

AI Research Engineer Reincement Learning 100% Remote

About the job As a member of the AI model team, you will drive innovation in reinforcement learning approaches for advanced models. Your work will optimize decision‑making and adaptive behavior to deliver enhanced intelligence, improved performance, and domain‑specific capabilities for real‑world ...

Senior Test Automation Engineer (AI/MLOps Platforms)

Are you a forward-thinking professional with a strong background in test automation engineering and an interest in financial services? Join as a Senior Test Automation Engineer and own the architecture, implementation and execution of test automation frameworks for an AI and MLOps platform. Support business-crit ...

Reinforcement Learning Research Engineer for AI Systems

Framework Ventures in Madrid is looking for a member of the AI model team to innovate in reinforcement learning approaches. The selected candidate will develop and implement cutting-edge algorithms to optimize decision-making and performance for real-world challenges. A PhD in Computer Science or a related field ...

Senior AI Automation & Agent Engineer Hybrid, Growth

Logicalis Spain busca un perfil Senior AI Engineer para diseñar y desarrollar soluciones de automatización con IA. El candidato ideal tiene más de 4 años de experiencia en IA, Python, y entornos Cloud AWS. Ofrecen contrato indefinido, trabajo híbrido en Pozuelo de Alarcón y un paquete retributivo competitivo. Be ...

Expert, Automation Engineer Infrastructure Security (AI & RPA)

⚡We are your Energy Technology Partner . We electrify, automate, and digitalize every industry, business, and home, driving efficiency and sustainability for all. At Schneider Electric, our values – IMPACT (Inclusion, Mastery, Purpose, Action, Curiosity, Teamwork) – are the foundation of eve ...

AI Model Engineer — Multimedia Vision & ML Pipelines

A multimedia solutions leader in Barcelona is seeking an AI Model Engineer to manage the lifecycle of AI models, focusing on development, training, and optimization. This role allows for a hybrid work model and up to 80% remote flexibility, offering perks like wellness support, private health insurance, and oppo ...

Senior QA Engineer Data Platform & AI Validation

Una empresa de tecnología busca un QA Engineer responsable de garantizar la calidad y fiabilidad de su plataforma. Entre sus responsabilidades están la validación de algoritmos de grafos, pruebas de IA conversacional y testing de aplicaciones frontales. Se requiere mínimo 5 años de experiencia en QA, conocimient ...

Senior AI SoC Physical Design Engineer (Remote)

A cutting-edge AI technology firm is seeking a Senior/Staff Silicon Physical Design Engineer in Madrid, Spain. You will develop advanced multi-core in-memory compute SoCs, leveraging 10+ years of physical design expertise, and work collaboratively with various teams. The role involves synthesizing, floorplanning ...

AI Solution Engineer (Full Stack) Rails + LLMs

A cutting-edge technology firm in Barcelona seeks an experienced engineer to work on an AI orchestration platform. You will lead backend development in Ruby on Rails while integrating LLMs and optimizing system performance. Join a dynamic team that values speed and product excellence, and embrace a challenge tha ...

Senior ML Engineer & AI Researcher Hybrid Madrid

A leading consultancy firm in Madrid seeks an experienced ML Engineer to drive AI research and enhance model performance. Candidates should possess a PhD or 5+ years of experience in machine learning, strong Python skills, and hands-on experience with Docker. The role offers a competitive salary of up to €75k, a ...

Senior Software Engineer — AI Platform, Barcelona (Hybrid)

A tech company focused on AI solutions in Barcelona is seeking an exceptional software engineer. In this hybrid role, you will take ownership of features from conception to deployment, work closely with product teams, and design scalable systems. Applicants should have over 5 years of experience in software engi ...

Senior GenAI Engineer: Build LLMs & AI Workflows

A global AI solutions provider in Barcelona is seeking a machine-learning engineer. The role involves collaborating with data scientists to orchestrate sophisticated AI workflows, implementing optimized storage systems, and developing frameworks for efficient ML solutions. Candidates should have a Bachelor’s or ...

Senior Go Engineer: Blockchain & AI Trust Infrastructure

A decentralized AI research collective is seeking a Senior Golang Developer to build a blockchain-based platform. The role involves designing robust node software and collaborating on AI-driven algorithms. Candidates should have over 5 years of experience in software development, particularly in Golang, and a st ...

AI Agent & MCP Engineer for SDLC Innovation

A global consulting firm is looking for an innovative Agent, MCP & Prompt Engineer in Málaga, Spain. The role focuses on designing and managing AI agents and Model Context Protocol (MCP) servers for optimal performance throughout the software development lifecycle. Candidates should have extensive software engin ...

Databricks Engineer for AI Platform & Data Infra

A recruitment agency is seeking a skilled Databricks Engineer for a contract position in Barcelona. The role involves developing scalable features and optimizing technology infrastructure for a data and AI platform. Candidates should have 3-5 years of experience with Databricks, strong skills in Python and Spark ...

AI Agent & Prompt Engineer — Hybrid (Malaga, Spain)

An international consulting group is seeking a skilled Agent, MCP & Prompt Engineer for a hybrid role in Málaga, Spain. The selected candidate will design AI agents and manage MCP servers to ensure performance and scalability in the AI ecosystem. Candidates should have at least 5 years of experience in software ...

Senior Applied AI Engineer – Developer Productivity & SDLC

Overview Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum ...

Data Engineer Real Time Pipelines & AI Solutions

A leading Swiss AI consultancy is seeking a proficient Software Engineer to join their team in Madrid. The role focuses on building data pipelines and solving complex business problems through collaboration with clients. Ideal candidates will have expertise in Python and distributed systems, possess strong clien ...

Impactful AI Engineer | Flexible Work & Learning Budget

Visium SA in Barcelona seeks talented individuals to join their AI Engineering team. The role involves transforming business challenges into AI solutions, developing AI systems, and ensuring model deployment into production. Ideal candidates will have a background in AI/Machine Learning Engineering, solid Python ...

Senior AI Automation Engineer Hybrid, Career Growth

Michael Page está buscando un Senior IA Automation Engineer en Pozuelo de Alarcón, Madrid. Serás responsable de diseñar e implementar soluciones de automatización basadas en Inteligencia Artificial, gestionando proyectos desde la planificación hasta la ejecución. Además, ofrecerás soporte técnico y formación a e ...

Production AI Software Engineer Python (Healthcare grade)

Hello from IQVIA! We are looking for a Software Development Engineer to join our Applied AI Science team in Barcelona or Madrid to contribute to Agentic AI solutions for healthcare. You will design and develop Python-based components, evaluate AI outputs, and collaborate within an Agile Scrum team whil ...

Senior AI Engineer Knowledge Graph & Agentic Pipelines

Control Risks seeks a Senior AI Engineer in Madrid to own the AI and data layer of the platform. You will design knowledge graph architecture and build agentic pipelines that enrich entity data through AI web research. With significant technical autonomy, you will work closely with the CTO and a specia ...

Senior AI Engineer Knowledge Graph & Agentic Pipelines

Control-Risks is looking for a Senior AI Engineer based in Madrid, Spain. In this role, you will own the AI and data layer of our platform, designing and implementing the knowledge graph architecture. You'll collaborate closely with our CTO and a dedicated AI team, utilizing your experience in AI/ML to influe ...

AI/ML DevOps Engineer — Hybrid in Madrid

Banco Santander SA sucht einen engagierten DevOps Engineer in Madrid, um die Entwicklung und den Einsatz skalierbarer AI-Lösungen zu unterstützen. Sie spielen eine zentrale Rolle bei der Gestaltung und Bereitstellung der Infrastruktur und Automatisierungspipelines, die den gesamten AI-Lebenszyklus unterstütze ...

Senior Software Engineer AI Shopping, Remote, Equity

Joko is seeking a Software Engineer to tackle cutting-edge challenges and create innovative solutions in its engineering teams. This remote-friendly position allows collaboration with the Product team to innovate user-facing products. You will contribute to impactful projects with the flexibility to work from ...

AI Full Stack Engineer — Remote & Barcelona Hybrid

Leadtech in Barcelona seeks a Full-Stack Developer to build and scale AI products. You'll develop features using Next.js and NestJS, while collaborating with teams to enhance user experience. The ideal candidate is proficient in TypeScript, React, and PostgreSQL, with a passion for AI innovation. The r ...

Senior Data Platform Engineer: Scale Data & AI

ManyChat, Inc. is seeking a motivated Data Engineer to join our Data team in Barcelona, focused on building and optimizing data infrastructure. This role involves designing scalable data solutions, ensuring data quality, and collaborating with various teams to deliver actionable datasets. We offer a hy ...

Senior Backend Engineer Pricing Engine & AI Autopilot

Traveltechessentialist is hiring a Senior Backend Engineer to develop our core pricing manager system in Barcelona. You will work on critical features like the overbooking autopilot and the Recommendations Engine, collaborating with a cross-functional team. We value collaboration, architectural thinkin ...

GCP Data Engineer: Scalable ETL & AI Pipelines

Ultimate.ai is seeking a Data Engineer to join their Applications, Data & AI practice in Madrid, Spain. The ideal candidate will have over 3 years of experience in building scalable data pipelines, along with a strong knowledge of Google Cloud Platform services. The role involves designing ETL/ELT pipe ...

AI Platform Engineer – LLMs & RAG (Hybrid, Madrid)

Tamarind Intelligence busca un/a AI Developer para unirse a un proyecto innovador en el sector Banca en Madrid. Los candidatos deben tener 2-3 años de experiencia como Developer y formación técnica equivalente. Las responsabilidades incluyen desarrollar y mantener agentes de IA, construir pipelines, in ...

Associate Applied AI Engineer (Benelux) Orbit Program

Location Location: Madrid for an onboarding period of 2 years and a possible relocation to Amsterdam after. Customer base will be in the Benelux region, involving travel to meet clients in person. The Team As an Associate Applied AI Engineer, you are part of our Value En ...

Senior QA Engineer AI Powered Testing Leader

Aily Labs is seeking QA Engineers of varying experience levels in Madrid, Spain. You will assist in implementing testing strategies to ensure high-quality software across web and mobile applications. Ideal candidates possess experience in automation frameworks, Python coding, and excellent communicatio ...

Associate Applied AI Engineer (Benelux) Orbit Program

Celonis is the global leader in Process Intelligence and the pioneer of Process Mining technology. As one of the world’s fastest-growing enterprise SaaS companies, we are changemakers pushing the boundaries of what’s possible. We invest heavily in advanced AI capabilities—specifically our Process Intellige ...

Senior AI Security Engineer Robustness & MLOps Lead

Keysight Technologies is seeking a Senior ML Security & Robustness Engineer in Barcelona. This role focuses on leading the design of secure ML systems and deploying adversarial defenses across various architectures. You will work closely with cross-functional teams to ensure the security of machine lea ...

Senior .NET Backend Engineer — Cloud, APIs & AI

Nextlane is looking for a Senior Backend Engineer to build scalable and secure backend services using C# and .NET Core. The engineer will collaborate with cross-functional teams and implement high-quality solutions aligned with architectural standards. This role requires at least 6 years of backend exp ...

AI Platform Engineer (Remote) – LLM, Cloud & Governance

eXperience IT Solutions busca un profesional apasionado por la inteligencia artificial y las plataformas cloud para diseñar soluciones escalables. Se requiere experiencia con APIs de LLMs, conocimientos en AWS y Azure, y capacidad para trabajar en entornos distribuidos. Ofrecemos un entorno tecnológico ...

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