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

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Senior Verification Engineer – RISC V AI Cores (Relocation)

Intellectual Capital Resources is looking for an expert to verify complex digital designs for high-performance RISC-V CPUs in Barcelona. This role offers hands-on opportunities to influence strategy and drive design verification from architecture to tape-outs, collaborating with various engineering teams to e ...

GenAI Enterprise Architect — Senior AI Engineer (Hybrid) (Madrid)

Senior AI Engineer (Italian) Location: Malaga Job Type: Hybrid Responsibilities Lead the analysis of business requirements and translate them into technical roadmaps. Design and develop enterprise‑grade components such as inference services, ML/LLM pipelines, A ...

Release Engineer Onsite Lisbon for AI Driven Releases

Airapps in Madrid is hiring a Release Engineer responsible for ensuring the smooth release of applications. You will optimize release pipelines and coordinate with development, QA, and DevOps teams in a fully onsite role. The ideal candidate will have 3+ years of experience in release engineering and b ...

AI Engineer (LLM & RAG) | Python | Azure | Hybrid – Barcelona

International consulting group founded in 2019, Ekkiden fosters an ecosystem of passionate and committed consultants who lead organizational, operational, and technological transformation projects in IT/Digital, Industry/R&D, and Sustainability, for large enterprises and SMEs in France, Switzerland, Spain, ...

Senior AI/ML Engineer Production ML Pipelines (Hybrid)

Aily Labs is seeking a Senior AI/ML Engineer in Madrid to develop robust AI/ML systems and infrastructure essential for decision-making. The role involves productization of AI models, collaborating with Data Scientists, and leading projects from design to implementation. Ideal candidates will possess s ...

Senior Data Engineer for AI Native Creative Platform

An innovative AI-native platform in Madrid is seeking a skilled individual with over 5 years of experience to build distributed backend infrastructure and data architecture. The role involves designing pipelines for AI outputs, ensuring real-time collaboration, and optimizing performance for creative workflows. ...

Senior Full Stack ML Engineer — Healthcare AI, Hybrid

A pioneering healthcare technology company based in Barcelona is seeking a Senior Full Stack ML Engineer to lead the development of innovative machine learning models targeted at solving complex healthcare challenges. The role demands strong Python skills, experience in data science, and the ability to mentor co ...

Senior Salesforce Engineer AI Driven Integrations & CI/CD

Checkatrade seeks a Senior Salesforce Engineer in Barcelona to architect and develop Salesforce solutions. You'll own the development lifecycle across Sales and Service Clouds, building scalable solutions and integrating with core services using event-driven architectures. The ideal candidate has exten ...

Senior Backend Engineer for AI Driven Voice Platform

A dynamic tech company in Madrid is seeking a Senior Backend Software Engineer to design and develop customer-centric features on their AI-powered platform. The ideal candidate will have over 6 years' experience in back-end development focusing on Typescript and AWS, emphasizing security and scalability. You wil ...

Senior Platform Engineer – Agentic AI & Harness Engineering (Madrid)

The Role This role focuses on designing and building the agent harness: runtime, orchestration, tool and MCP integration, context and memory, evaluation, guardrails and observability. Responsibilities Design and build the agent harness: runtime, orchestration, tool and MCP int ...

Senior AI Software Engineer | Python, Cloud, Hybrid Madrid

Lumen Technologies is seeking an experienced Senior Software Engineer in Madrid to design, develop, and deploy scalable AI solutions. This hybrid role involves collaborating with an international team and requires strong expertise in Python and extensive experience with cloud platforms. The ideal candi ...

AI Research Engineer (Pre training LLM & Multi Modal)

About the job As a member of the AI model team, you will drive innovation in architecture development for cutting‑edge models of various scales, including small, large, and multi‑modal systems. Your work will enhance intelligence, improve efficiency, and introduce new capabilities to advance the ...

Lead Technical Support Engineer: AI Driven Incident & Ops

Ingram Micro, Inc. is looking for a Lead Technical Support Engineer in Santander, Spain. This position will serve as the senior technical leader within the support organization, responsible for driving operational improvements and mentoring teams. The ideal candidate will have over 7 years of experienc ...

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 ...

Principal Forward Deployed Engineer QuantumBlack, AI by McKinsey

Who You’ll Work With Driving lasting impact and building long‑term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture – doing hard things, picking yourself up when you stumble, and having the resilience to try another w ...

Data & AI Strategy Knowledge Graph Engineer Consultant/Manager

Supply Chain Data & AI Strategy Consultant 1 week ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Are you ready to shape the future of business through the power of technology, data, and AI? At Accenture, we are driving the compl ...

Face Biometrics AI Engineer Production Ready Identity Models

Job Description Your mission You'll join Didit Labs , our in-house AI lab, and develop state-of-the-art biometric models — including fraud — shipped to production and used by millions. What we're looking for Deep computer-vis ...

(Senior) Principal Solutions Engineer AI and Data Governance

Strength in Trust OneTrust’s mission is to enable innovation through the responsible use of data and AI. We believe that ensuring data is trusted shouldn’t slow teams down—it should accelerate what’s possible. This led us to develop the first technology platform for responsible data use in 2016. ...

Senior Security Engineer: AI Driven Tooling & Secure DevOps

Hopper is seeking a Senior Security Engineer to join their Security team in Barcelona. This role involves owning and evolving the vulnerability management program and building security tools integrated into CI/CD pipelines to ensure security is automatic, not an afterthought. The ideal candidate should ...

Python Backend Engineer Industrial IoT & AI Driven Data

Lhh busca un Ingeniero/a Fullstack Junior/Mid para unirse a su equipo en Zamudio, España. El candidato ideal diseñará y desarrollará herramientas en Python y gestionará flujos de datos entre sistemas. Se valorarán conocimientos en herramientas de IA como Cursor y Copilot, y experiencia en bases de datos. ...

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 ...

Full Stack Engineer (AI‑First) — Equity & High Impact

Pillar is seeking a Full Stack Engineer to join their ambitious team in Barcelona. This role involves building the foundations of the startup, which has rapidly grown with significant investments. The ideal candidate will have proven experience in early-stage startups and mastery of technologies such a ...

Senior Perception Engineer Edge AI for Robotic Sensing

Funditec busca incorporar a un/a Senior Perception Engineer en Madrid, un papel clave para la integración de sensores como LiDAR y cámaras. El candidato ideal debe tener experiencia en proyectos software y hardware y conocimientos en Deep learning, ROS, y más. Se ofrece un entorno de trabajo innovador, ...

Senior GTM Engineer: AI Powered Revenue Systems Architect

Ultimate.ai is seeking a Senior GTM Engineer in Barcelona to design and implement sophisticated AI-powered systems that enhance outbound processes. In this role, you'll collaborate closely with Sales and Engineering to automate workflows and improve data quality. The ideal candidate will have over 6 ye ...

Senior Backend Engineer, AI SaaS — Lead & Scale (Hybrid)

Landbot. Io is seeking a Senior Backend Engineer to join their team in Bellprat, Spain. The role involves coding and guiding the team's technical direction to deliver impactful AI-driven solutions. The ideal candidate is fluent in English and Spanish, has experience with modern backend stacks, and is e ...

Senior Data Engineer: AI, Data & Lakehouse (Hybrid Málaga)

Experis España busca un Data Engineer AI & Data para un proyecto estratégico en Pozuelo de Alarcón. Son 2 posiciones en modalidad híbrida en Málaga, donde se trabajará en la integración de plataformas y el manejo de datos a gran escala. Los candidatos deben tener un alto conocimiento de inglés, así com ...

AI Driven Full Stack Engineer for Healthcare Ops

Livo Health is seeking a Senior Full-Stack Engineer in Barcelona to drive the development of AI-powered healthcare solutions. In this role, you will own product-level outcomes and leverage advanced AI tools to enhance software development processes. Applicants should have 5+ years of experience, strong ...

Senior AI Driven DevOps & SRE Engineer (Hybrid, Barcelona)

JobFluent is seeking a Senior DevOps/SRE Engineer in Barcelona to take charge of their cloud platform. The role emphasizes ownership of both classical platform work and AI infrastructure performance, costing, and reliability. The ideal candidate will drive improvements in CI/CD, developer productivity, ...

Marketing Engineer: AI‑Driven SEO, AEO & CRO Automation

Precis is looking for a Marketing Engineer in Madrid to innovate SEO, AEO, and CRO strategies using AI-native tools. You'll lead development roadmaps, deploy automated workflows, and monitor industry shifts to keep strategies competitive. The ideal candidate has strong expertise in AI-native environmen ...

Senior Frontend AI Native Engineer (Angular) | Hybrid Málaga

Tamarind Intelligence is looking for a Senior Frontend Developer in Málaga, Spain. This role requires strong Angular expertise and experience in AI-native engineering practices. The position offers a hybrid work model and focuses on developing scalable frontend applications. As a candidate, you should ...

Full Stack Engineer, Data & AI for Life Sciences

MIGx AG in Barcelona is seeking a Full Stack Engineer to join their Data and AI Engineering team. This position requires building secure, scalable systems that integrate frontend experiences with robust backend architectures, applying best practices in software engineering. The ideal candidate will wor ...

Senior Data Engineer: Hybrid Cloud Data & AI Pipelines

Minsait busca un profesional para unirse al equipo de Analítica Avanzada. La misión es transformar datos en valor monetario mediante soluciones de IA y analítica avanzada. Se requiere experiencia de entre 4 y 6 años, conocimientos de SQL y automatización de ETL’s, y capacidad para colaborar con áreas d ...

Senior Full Stack Engineer (Angular + Python) AI Products

Overview Cliente final Posición 100% remoto Nuestro cliente es una empresa de tecnología y telecomunicaciones consolidada y con un enfoque en la creación de productos de inteligencia artificial avanzados. Se trata de una organización de tamaño medio que apuesta por ...

Software Engineer AI Therapeutics start up (Platform/Infra)

Senior Software Engineer | Platform & Infrastructure About the Compan yOur client is a venture-backed deep-tech company building an AI-powered platform that helps technical teams connect data, knowledge, and intelligent systems to make better decisions in complex environments ...

Senior AI Driven Full Stack Engineer (Hybrid Madrid)

About Us: Luzia is Europe’s fastest-growing AI consumer company, redefining conversational AI with cutting-edge large language models and an unparalleled user experience. With a strong and rapidly expanding presence in Brasil, we’re on a mission to make Luzia the go-to AI person ...

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 ...

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 ...

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