123,248+ Remote Fullstack Engineer Java React Ai Api Builder Jobs in Spain — Top Companies Hiring July 2026

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Senior DevOps Engineer: Cloud Native Infra & AI Tools

Join NTT DATA Europe & Latam as a Senior DevOps Engineer in Barcelona, where you will work on cloud-native architectures and contribute to reliable software delivery. Your role involves designing infrastructure with Terraform, managing CI/CD pipelines in GitLab, and collaborating with international tea ...

Senior GTM Engineer: AI Driven Outreach & Clay Architect

Traveltechessentialist in Barcelona is seeking a Senior GTM Engineer to design and build AI-powered outbound and pipeline generation systems. The role involves creating complex workflows in Clay and ensuring high-quality data management for the sales team. The ideal candidate has over 6 years of experi ...

Senior Data Engineer (Hybrid) — AI & Fintech in Madrid

A leading AI Fintech company in Madrid is seeking a Senior Data Engineer with strong Python skills and experience with RAG systems. This hybrid role involves collaborating 2-3 days a week and encompasses the responsibility of building and maintaining ETL pipelines. You will work with cloud systems and develop hi ...

Senior DL Engineer: Model Compression & Edge AI (Hybrid)

A leading tech recruitment firm is seeking a Senior Principal Consultant in Zaragoza to drive AI model optimization and deep learning initiatives. The role involves leading the training of advanced models and collaborating with top talent in the field. Applicants must have a Master's or PhD in a relevant discipl ...

Senior Solution Engineer (Cloud, Data & AI Pre Sales)

Your mission About the opportunity As Astrafy continues to grow, we are looking for a Senior Solution Engineer to help shape and scale our technical pre-sales function. Reporting directly to the Chief Revenue Officer, you will act as the bridge between Sales, Customers, Google Clo ...

Next Gen RL Research Engineer for AI Systems

Tether in Madrid is searching for a reinforcement learning expert to drive innovation in AI model development. This role focuses on the creation and optimization of advanced models to enhance decision-making processes across varied applications. Candidates should possess a degree in Computer Science, i ...

Paid Data & AI Engineer Intern: Build Pipelines & Insights

TAPTAP Digital is seeking an Intern - Junior Data & AI Engineer for a full-time on-site position in Madrid. This internship provides practical experience in digital advertising and offers opportunities for career growth. Interns will work on developing data pipelines and workflows while collaborating with the ...

Full Stack AI Software Engineer: Build at Scale

Overview Si cree que es el candidato ideal para la siguiente ocasión, envíe su solicitud después de leer la descripción completa. At 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 t ...

Agentic AI Engineer — Build Multi Agent LLM Systems

Accenture España busca incorporar un Agentic AI Engineer en Barcelona mediante un programa intensivo de 5 semanas. El candidato formará parte de proyectos de gran envergadura en un entorno híbrido, trabajando algunas jornadas desde casa y otras en la oficina. Las responsabilidades incluyen diseñar y op ...

AI Platform Engineer — Build Self Service Dev Platforms

Dormont Manufacturing in Madrid is seeking skilled Platform Engineers to develop self-service platforms using Harness. Key responsibilities include leading innovative AI projects and mentoring engineering teams in a collaborative culture. Candidates should be experienced with Kubernetes, Terraform, and ...

AI Infra DevOps Engineer for LLM/HPC Platforms

oga busca un/a DevOps Engineer en Madrid con experiencia en infraestructura y soluciones de Inteligencia Artificial. El rol incluye diseñar arquitecturas virtualizadas, administrar sistemas Linux, y colaborar en proyectos de desarrollo software. Se valoran habilidades en Docker, Kubernetes y programaci ...

Senior Backend Engineer — AI Powered HR on Azure

Euro Staffs is seeking a Senior Software Engineer in Barcelona to join their product engineering team. You will design and build infrastructure, develop scalable backend services using Python, and integrate AI capabilities into Valeria's platform, impacting how employees get hired and paid. The ideal c ...

Data Platform Engineer: High Performance, AI‑Driven Infra

The Workshop is searching for a Data Software Engineer to enhance its data platform. Ideal candidates will showcase strong back-end skills in Java or Python, and expertise in Kafka for data ingestion. This role offers the chance to build services that support high-volume data needs. With a collaborativ ...

AI Solutions Engineer Permanent, Full Time, Summer Hours

Aqualia busca incorporar un/a Ingeniero/a en Inteligencia Artificial para la evolución de soluciones en la organización. El rol implica la gestión de proyectos de TI y el diseño de soluciones de IA aplicada. El candidato ideal debe tener al menos 2 años de experiencia en puestos similares y titulación ...

Founding Real Time Voice AI Performance Engineer (Barcelona)

Slng Ltd in Barcelona is looking for a Speech Model Performance Engineer to enhance the speed of speech models. Responsibilities Collaborate with the founding tech team to improve speech model performance. Quantise neural models for efficiency. Benchmark ASR performan ...

Senior AI Engineer LLM & RAG | Python & Azure (Hybrid)

Ekkiden, an international consulting group based in Cataluña, is looking for 2 AI Engineers to join a dynamic team focused on developing a Quality Monitoring Scoring System using Python and Azure. The successful candidates will work in a hybrid environment with 3 days on-site each week. This role offer ...

Senior GenAI Engineer AI Driven Code Modernization Pro

GFR Technologies en Madrid busca un/a Ingeniero GenAI/PMAI experimentado/a para desarrollar soluciones basadas en inteligencia artificial. Este rol implica construir plataformas de conversión automática y modernizar sistemas legacy, colaborando estrechamente con nuestros clientes. Los candidatos deben ...

Senior AI/ML Engineer – Hybrid, Build Scalable Models

MCA España busca un AI/ML Engineer para unirse a proyectos innovadores en inteligencia artificial y machine learning. Este puesto ofrece una modalidad híbrida, combínando trabajo en oficina y remoto, y requiere experiencia en el diseño y desarrollo de modelos de machine learning. El candidato ideal deb ...

Senior Full Stack Engineer: AI Native Backend & Angular

TECDATA ENGINEERING busca un Senior Full Stack Developer (AI-Native Engineering) para unirse a su equipo en Madrid. Se requiere más de 5 años de experiencia en desarrollo de software Full Stack, especialmente en backend. El candidato debe tener amplios conocimientos en Java, Spring Boot, y tecnologías fronten ...

Embedded AI Engineer (C/C++/Jetson) Vision & Autonomy

Indra busca un profesional para desarrollo de software embebido en C/C++ en Madrid. Trabajarás en proyectos innovadores de larga duración en una empresa líder de Defensa, donde realizarás implementaciones de visión por computador y colaborarás con equipos multidisciplinares. Buscamos a alguien con expe ...

Madrid Based Associate Solution Engineer — AI & ITOM Demos

BMC Helix is seeking an Associate Solution Engineer to join their Digital Solution Engineering team in Madrid. This role is perfect for recent graduates or individuals with 1‑3 years of relevant experience who are excited to contribute to enterprise technology. Key responsibilities include collaboratin ...

Release Engineer Onsite Lisbon for AI Driven Releases

Airapps in Barcelona is seeking a Release Engineer to oversee the smooth and efficient release process of applications. You will manage versioning, build management, and automate release cycles while ensuring collaboration with cross-functional teams. The ideal candidate will have 3+ years of experienc ...

AI Product Engineer – Real Time Graph & Data Pipelines

xNova International is looking for an AI Product Engineer located in Galicia, Spain. In this role, you will design, build, and deploy products that provide real-time insights from data. You will work on ingesting and unifying diverse data sources, ensuring data quality, building machine learning models, and d ...

High Security AI Platform Engineer (MLOps) Kubernetes/GPU

Airbus Defence & Space is seeking an AI Platform Engineer (MLOps) to develop Kubernetes environments for cutting-edge AI technology in high-security settings. Join our Architecture & Integration team at Torrejón de Ardoz Air Base, where you'll design and automate critical infrastructures. The ideal can ...

AI Engineer Internship — Global, Paid 9‑Month Program

Generali busca estudiantes para su programa de prácticas Young Lions en Barcelona. Buscamos jóvenes proactivos con estudios en Ingeniería Informática o afines para trabajar en proyectos de IA. Ofrecemos una experiencia de 9 meses a partir de octubre, con remuneración y flexibilidad horaria. Durante las ...

Senior Cloud SIEM Engineer — AI Driven Threat Detection

Datadog is seeking a Senior Security Engineer to focus on their Cloud SIEM product, helping to advance detection capabilities and improve security workflows. This role involves researching threats, designing investigation processes, and developing detection content for various platforms. The ideal cand ...

Senior AI Analytics Engineer Scale Data Pipelines & LLMs

Factorial Hr is seeking a Staff AI Analytics Engineer in Barcelona to enhance an AI-enabled analytics platform used by millions. This role involves shaping data transformations and delivering intelligent analytics experiences that drive business impact. The ideal candidate should have strong SQL skills ...

AI Enablement Engineer (m/f/d) (El Rosal)

Por favor, asegúrese de leer completamente el resumen y los requisitos de esta posibilidad de empleo que se detallan a continuación. Quantion es una empresa de servicios de Transformación Digital Empresarial fundada en 2015 y parte del Grupo Astek, operando en más de 25 países con más de 10,000 empl ...

Backend Engineer for AI Driven Medical Devices (Madrid)

3028 CELLS IA TECHNOLOGIES, SL busca un desarrollador back-end en Madrid para crear y mantener software médico. Se requiere experiencia en Python y FastAPI, así como una sólida capacidad para colaborar y optimizar el rendimiento de sistemas existentes. El candidato idóneo debe tener entre 3 y ...

Senior ML Engineer: Vision & Verification, Production Ready AI

Incode Technologies is seeking a Machine Learning Engineer in Madrid to design and deploy cutting-edge deep learning models for identity verification and document processing. You will work on real-world challenges, collaborating with cross-functional teams to ensure production-readiness and cost efficiency. < ...

Postdoctoral Biomedical AI Systems Engineer for Data & HPC

Navarrabiomed busca un/a Ingeniero/a de Sistemas y Soporte a IA Biomédica para fortalecer su equipo en Pamplona. Esta posición se centra en la gestión operativa del clúster de computación y el apoyo técnico en diversos proyectos de inteligencia artificial relacionados con el análisis de datos biomédicos. ...

Senior Product Support Engineer — Drive AI‑Rooted Fixes

AlleyCorp is looking for a Senior Product Support Engineer based in Barcelona, Spain. In this role, you will own complex technical escalations, bridging Customer Operations and Engineering. Your efforts directly influence user experience across our core products. The ideal candidate has 3+ years in pro ...

AI Developer Tools Engineer Build 10x Developer Workflows

The Consulting Solutions is seeking an experienced backend engineer to join our AI-focused team in Melilla, Spain. In this role, you will work on innovative developer tools and integrations, leveraging large language models to improve productivity and efficiency for software engineers. You’ll have the opportu ...

Senior Go/Rust Engineer – AI Native Data Platform

Lansweeper NV is looking for a Senior Software Engineer to join their team in Alicante, Spain. This hybrid role involves working two days in the office and contributes to a cutting-edge AI Cyber Asset Intelligence platform. The ideal candidate will have proficiency in Go or Rust and experience with distribute ...

Senior Product Engineer, Insights Real Time Restaurant AI

Jentic Technology Limited is seeking a Senior Product Engineer to join their Insights Squad. In this full-stack role, you will shape and build Nory's restaurant management systems, working closely with product, design, and data teams. Your responsibilities include building systems for real-time insight ...

Hybrid Data Scientist & ML Engineer — AI, NLP & MLOps

Zurich 56 Company Ltd en Barcelona busca un/a Data Scientist/Engineer para unirse al equipo de AI. Este rol implica utilizar datos para resolver problemas empresariales complejos, diseñar y desarrollar modelos de Machine Learning, y colaborar con diferentes equipos de negocio. Se requieren 5+ años de e ...

Senior NodeJS Backend Engineer: AI Driven, Flexible Equity

Afori Solutions SLU is looking for a Senior NodeJS Backend Engineer based in Barcelona to join their fast-scaling startup transforming the insurance industry using AI. As a key team member, you will be building AI agents and scalable backend systems, working with top-tier engineers and industry experts. < ...

Junior Software Engineer: Grow in Agile AI Projects

XITASO sucht einen Software Engineer, der Teil eines interdisziplinären Teams wird. Sie arbeiten an komplexen Softwareprojekten und setzen agile Methoden ein, um qualitativ hochwertige Lösungen zu entwickeln. Erforderlich sind ein Abschluss in Informatik oder Wirtschaftsinformatik, fließende Deutsch- u ...

Hands on Software Engineer AI Diagnostics, Hybrid Barcelona

apeirum is seeking a hands-on engineering professional to join the Barcelona team, part of a startup-like environment within an established hardware company. This role focuses on software engineering and managing Azure services in a hybrid model. The ideal candidate will possess solid Python skills and ...

Mobile AI/ML Engineer Onsite in Lisbon (Relocation)

airapps is seeking an AI/ML Engineer to design and optimize machine learning models for mobile applications. This fully onsite position in Barcelona will involve collaboration with product managers, engineers, and designers to enhance user experiences. The ideal candidate should have over 4 years of ex ...

AI Driven SDLC Engineer (Hybrid, 20 Days Abroad)

zooplus, a leader in the pet products industry, is looking for a Software Engineer to join the PETS area in Madrid. You will contribute to developing AI-driven workflows, improving engineering productivity and automation. The role involves collaboration with teams to design AI-driven solutions for software de ...

Senior AI First Full Stack Engineer — Relocation & Housing

Lasting Dynamics, located in Las Palmas de Gran Canaria, is looking for a senior engineer to lead the design and development of scalable web and mobile applications. In this full-time position, you will take real ownership and drive technical decisions while benefiting from relocation support. The idea ...

Pharma Data Engineer: Hybrid Cloud Pipelines & AI Analytics

ERNI in Barcelona is seeking a skilled data professional to join their team in the pharma and clinical data domain. The ideal candidate will leverage Python and SQL to create scalable data pipelines, enhancing AI and analytics capabilities. This hybrid role requires office presence about two days a wee ...

Junior Full Stack Engineer: Cloud, AI & Security (Hybrid)

SERVEIS INTEGRALS ESED SL busca ampliar su equipo técnico en Barcelona/Maresme, con foco en desarrollo de software y soluciones seguras basadas en IA. Formarás parte de proyectos que combinan frontend, backend, automatización e integración de IA, con crecimiento profesional y colaboración en entornos modernos ...

Full Stack Engineer for AI Driven Voice Platform

Aircall is looking for experienced Software Engineers to join a new team focused on building an innovative product that leverages AI and voice technology. As a key member of this team, you will influence the technical direction and collaborate with cross-functional teams. The ideal candidate has strong ...

Intern Junior Data & AI Engineer at TAPTAP Digital

Overview Apply for Intern - Junior Data & AI Engineer at TAPTAP Digital in Madrid, MD, ES. This full‑time on‑site position offers great opportunities for career growth. TAPTAP Digital is a global advertising technology company building solutions that drive real results. Scope This ...

Senior Python Engineer: Scale Brand AI Platform (Hybrid)

Manychat is seeking a Senior Python Engineer for Brands in Barcelona. You will own backend systems, design scalable services with FastAPI, and directly influence product decisions. You’ll collaborate with product and partners to ensure the code delivers real metrics and growth. You’ll work on building ...

AI Platform Engineer Hybrid Role Build Production Agents

A-SAFE DIGITAL in Malaga is expanding its AI vertical and seeks an AI Platform Engineer to build production agents and own the MCP layer over core systems like NetSuite. You will enable secure, auditable AI adoption and guard against risks while collaborating with business stakeholders. You will work i ...

AI Engineer End to End ML & Cloud Solutions

SDG Group España busca talentos en IA y analítica para liderar proyectos end to end, desde la comprensión de problemas hasta la implantación de soluciones en producción en entornos cloud La posición requiere experiencia en IA escalable, plataformas en la nube y herramientas como LLMs, Transformers y fr ...

Senior QA Engineer — Shape AI/Biotech Trials (Hybrid)

BIORCE is seeking a Quality Engineer to ensure our platforms are reliable as the science they support. You will design, implement, and maintain automated testing frameworks, collaborating with development and product teams to deliver flawless user experiences. The role emphasizes quality metrics, conti ...

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