123,011+ Remote Fullstack Engineer Java React Ai Api Builder Jobs in Spain — Top Companies Hiring July 2026

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Senior Backend Engineer – AI Driven Open Banking

Yapily is seeking a senior software architect to shape our core backend architecture, driving scalable, secure web applications and APIs. You will champion AI-native development workflows and guide the team in adopting cutting-edge tooling to boost velocity and maintainability. A deep Open Banking/PSD2 ...

AR & Generative Visual AI — Principal ML Engineer

Sklum is hiring for a senior ML/AI engineer to lead the production ML stack for HomeByMe 2.0, including AR, 2D, and 3D visualization. You will own architecture decisions, vendor relationships, and the integration of top-tier AR/AI models. The role centers on building deployable, scalable ML that powers ...

Senior AI Engineer: LLM Driven SDLC & Contexts

zooplus is seeking a Senior AI Engineer to embed AI capabilities across the SDLC, improving engineering productivity and automation in Acquisition & Retention. You will build intelligent developer workflows using MCP, context engineering, and LLM orchestration in a hybrid Madrid setting. The role empha ...

Senior AI Software Engineer Cloud Native & Python

Lumen is seeking an experienced Senior Software Engineer to design, develop, and deploy highly scalable AI solutions and AI Agents in a cloud-native environment. You will join an international team with US time-zone overlap and work in hybrid mode from Madrid, two days per week in office. Responsibilit ...

AI Engineer con OCR (hibrido, 36 44k)

THE BOARD | people & talent, firma especializada en búsqueda y selección de personal, estamos trabajando para uno de nuestros clientes, cosultoría top en ámbito financiero, a un AI Engineer – Procesamiento Inteligente de Documentos para participar en un proyecto de procesamiento inteligente de docu ...

Senior Software Engineer, AI Driven Horizon Platform

SkySpecs is seeking a Senior Software Engineer to shape the Horizon platform, building end-to-end software across frontend, backend, infrastructure, data, and tooling. You will drive delivery with product managers and customers, using AI-assisted workflows to accelerate outcomes and improve reliability, secur ...

AI Engineer – Document Processing & LLMOps (NLP/OCR)

THE BOARD | people & talent busca un AI Engineer para Procesamiento Inteligente de Documentos en banca, orientado a desarrollo e industrialización de soluciones de IA en producción. Se trabajará con NLP, OCR, ML y GenAI, desplegando en cloud y Kubernetes, con colaboración entre Data Science, Producto y ...

Senior ML/AI Engineer — Hybrid in Barcelona

Aristocrat Leisure's Product Madness team in Barcelona seeks an experienced ML/AI Engineer to deploy models that enhance game features, player experiences, and operational efficiency. You'll refine data pipelines with Python and SQL, and contribute to projects involving LLMs, RAG systems, and agentic AI. ...

Senior AI & Data Science Engineer GenAI & Azure

Avanade Inc. seeks a Senior Analyst – AI & Data Science to design, develop, and deliver AI- and data-driven solutions that drive measurable business outcomes. You will work across the full data science lifecycle, with GenAI use cases and Azure-based deployments. You will collaborate across teams to tur ...

ML & External Sensing Engineer: Forecasting & AI Signals

Teva Pharmaceuticals in Madrid is seeking a Machine Learning & External Sensing Engineer to develop ML models, AI agents, and external signals for predictive forecasting and supply chain decision-making. You will collaborate with IT to industrialize data pipelines, integrate external indicators, and empower a ...

BECA YOUNG LIONS GENERALI | AI ENGINEER INTERNSHIP

¿Estás buscando prácticas? GENERALI te busca a ti. En GENERALI lanzamos una nueva edición de Young Lions, nuestro programa de prácticas para estudiantes que quieren aprender, crecer y empezar su carrera profesional en una multinacional. Si te gustan los retos, trabajar en equipo, hacer las ...

Senior AI/ML Engineer BCN/MAD/Munich

Senior AI/ML Engineer We are looking for Senior AI/ML Engineers who are passionate about the power of AI and love 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 j ...

Senior Metrology Engineer — 3D Measurements & AI Vision

Diamond Foundry is looking for a Senior Metrology Engineer in Zaragoza to play a crucial role in the development of measurement systems. You will be integral in creating 3D measurement capabilities and maintaining deep learning models for defect detection. This position requires a bachelor's degree and ...

Senior Software Engineer — Barcelona Hybrid, AI Driven

A Place for Rover, Inc. is seeking a full-time software developer to join their Barcelona team. The ideal candidate has over 7 years of experience, proficient in ReactJs and Python, and embodies the company's mission of enhancing lives through technology. This position offers a hybrid work environment ...

Cloud Security Engineer AI Driven Security Stack

Bynder Inc. is seeking a passionate Security Engineer based in Barcelona to enhance security in a cloud-native SaaS environment. As part of a dynamic team, you will execute penetration tests, embed security across development cycles, and collaborate on security initiatives. This role offers flexibility with t ...

Backend Engineer: AI/ML Ops & Cloud Integrations

Tamarind Intelligence busca un Backend Engineer en Madrid con experiencia en integración de IA y DevOps. Esta posición híbrida requiere colaborar con equipos ágiles y desarrollar soluciones tecnológicas en un entorno dinámico. Se valorará la experiencia en contenedorización (Docker/Kubernetes) y una só ...

Space Grade Embedded Software Engineer (FPGA/AI)

GMV is seeking talented professionals for its Robotics and Onboard Autonomy team in Tres Cantos, Spain. As part of the Space Avionics and Equipment Division, you will develop innovative solutions for space flight, working with cutting-edge technologies like FPGAs and embedded SoCs. Your contributions w ...

Hybrid Software Engineer – Full Stack, DevOps & AI

The Workshop in Málaga, Spain is looking for a Software Engineer who will push technology into the future. In this role, you will tackle challenges across the full stack, working collaboratively to ensure exceptional software design and quality. You'll engage in coding and testing, participate in agile ...

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 ...

AI Research Engineer – Air Quality & Satellite ML

The Barcelona Supercomputing Center (BSC-CNS) in Barcelona invites applications for a Research Engineer – AI Support for Air Quality Services. The role focuses on developing AI methods to support Air Quality Services, integrating satellite and in-situ data with models, within a collaborative Earth Sciences se ...

HPC GPU Research Engineer for AI & Bioinformatics

The Barcelona Supercomputing Center (BSC-CNS) invites applications for a Research Engineer for HPC-GPU (RE2). You will work on accelerating bioinformatics algorithms and AI-driven data analysis using software-hardware co-design. Engage with a diverse team, contribute to scientific publications, and dri ...

Geospatial AI Research Engineer — Climate & Urban Analytics

The Barcelona Supercomputing Center’s Data Analytics and Visualization Group seeks a research engineer or postdoctoral researcher with expertise in spatial data analysis and AI models to support the AI Factories project. You will train AI models, prepare heterogeneous geo‑located datasets, and collabor ...

Hybrid AI Driven Backend Engineer (Node.js & C++)

Arsys is seeking an execution-focused backend engineer to transform architectural specs into robust Node.js and C++ code. You will work on a hybrid Node.js–C++ system and leverage AI tools to accelerate development without compromising quality. You will optimize builds with Docker, Make, and CMake, ana ...

Senior Platform Engineer Agentic AI & Harness Engineering

Senior Platform Engineer – Agentic AI & Harness Engineering Location: Madrid, Spain What you will do Design and build the agent harness: runtime, orchestration, tool and MCP integration, context and memory, evaluation, guardrails and observability. Build golden p ...

Full Stack Engineer: AI Driven Healthcare Analytics

Capgemini busca un/a Desarrollador/a Python + React para unirse a su equipo en Madrid. Participarás en un proyecto innovador en el sector sanitario, desarrollando sistemas de ciencia de datos que optimizan decisiones de marketing. Se requiere experiencia en Python y React, así como en CI/CD y uso de IA ...

Senior Frontend Engineer — Angular + AI‑Native Tools

Talan is looking for a Senior Frontend Developer with strong Angular expertise in Andalucía, Spain. The successful candidate will develop scalable applications, collaborate with teams, and enhance productivity using AI-assisted tools. Candidates should have 5+ years of experience, strong communication skills, ...

AI Enhanced Simulation Engineer for Hybrid Powertrains

Horse Technologies, a division of Horse Powertrain, seeks an engineer specializing in numerical simulation for hybrid powertrains in Valladolid. You will develop virtual twins, validate models, and collaborate with project teams to define simulation requirements. Applicants should have a degree in Engi ...

Senior AI & Data Science Engineer (GenAI & Azure)

Avanade Spain SL in Madrid is searching for a Senior Analyst specializing in AI & Data Science to design, develop, and deliver cutting-edge AI solutions. You will engage across the complete data science lifecycle, addressing real client needs while utilizing strong data analysis skills. The ideal candi ...

Automation & RPA Engineer: AI Driven Automation & Growth

Eurofins Scientific in Barcelona is seeking an Automation & RPA Engineer to help transform and automate internal processes across our European IT organization. You will focus on process optimization, automation delivery, and future AI enablement, based in Barcelona, Spain, joining a globally distributed team ...

Senior TypeScript Engineer — AI‑Driven MGP UI

BidMachine, based in Barcelona, is seeking a Senior TypeScript Developer to own the architecture of MGP UI, focusing on AI integration in workflows. This greenfield project allows you to define the technical standards and shape the team's work. The ideal candidate should have 5+ years of software engin ...

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 ...

Senior AI Solutions Engineer—Revenue & GTM (Hybrid)

The Hotels Network is looking for a Senior AI Solutions Engineer in Barcelona to transform internal operations and drive AI innovations. You will collaborate with commercial teams to design AI solutions that address real-world business challenges. This role offers flexibility with time off and a compre ...

Senior AI Agent Engineer LLM Production Systems

Erni Swiss Software Engineering in Madrid is seeking a skilled developer to contribute to a Generative AI initiative. You will play a vital role in developing and industrializing LLM-based agents using Python and AWS technologies. The position offers opportunities for career growth and mentoring within ...

Senior AI/MLOps Engineer — Azure & Databricks, Madrid

Tamarind Intelligence busca un Senior AI / MLOps Engineer para liderar la puesta en producción de soluciones de IA. Las responsabilidades incluyen diseñar servidores MCP y operar pilares de comunicación para conectar agentes de IA con bases de conocimiento. Se requiere sólida experiencia en Python, Azu ...

Palantir Foundry Data Platform Engineer — AI & AIP

Luxoft Spain is looking for a Palantir Platform Engineer to manage and optimize their data platform. The successful candidate will have a strong background in IT and data engineering, with experience in Palantir Foundry and deploying AI solutions. This role requires a problem-solver who can translate c ...

Staff Backend Engineer — AI Driven Travel Platform

Hopper is seeking a Staff Software Engineer to join our dynamic team in Barcelona. This role involves enhancing our backend systems and integrating AI capabilities to boost performance and speed. You will work collaboratively with senior engineers in an environment that promotes autonomy and trust. The ...

Senior AI & NLP Engineer Relocation to Brussels

Senior AI & NLP Engineer - Relocation to Brussels We are looking for a Senior AI & NLP Engineer for a European institution in Brussels who will relocate to Brussels. Candidates should be based in Belgium or willing to relocate, be fluent in English, and possess the required work permit. T ...

Reinforcement Learning Research Engineer for AI Systems

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 ...

Value Engineer: AI Driven Supply Chain (Spanish)

Celonis is seeking a Value Engineer to drive data-driven business transformation with its AI Process Intelligence Platform. As a trusted advisor, you will define strategies to achieve customer goals and realize significant value using the Celonis Platform. This role requires native-level Spanish profic ...

Senior Data Platform Engineer – Global Fabric & AI

Vitrolife Group in Valencia, Spain is seeking a Senior Data Engineer to develop and refine our global data platform using Microsoft Fabric and Azure. In this role, you will combine hands-on data engineering with architectural responsibilities to create a modern, scalable data environment. The ideal can ...

Senior Sales Engineer Data & AI Security DSPM

A leading software company located in Spain is looking for a Senior Sales Engineer to contribute technical leadership in their sales team. The successful candidate will partner with sales specialists to drive value through technical presentations and customer interactions. The ideal applicant will have a strong ...

Product Engineer, AI & Full Stack — Hybrid & Impact

PROXUS busca un Product Engineer (AI & Full Stack) para unirse a su equipo en Getafe, Comunidad de Madrid. El puesto implica trabajar entre producto e ingeniería para mejorar la herramienta educativa que ayudan a estudiantes en toda España. El candidato ideal será curiosos y tendrá experiencia en integ ...

Edge AI & Computer Vision Engineer (Jetson, PyTorch)

Gradiant busca un profesional en el área de Sistemas Inteligentes para diseñar y desarrollar algoritmos de IA enfocados en el análisis de imagen y vídeo. Se valorarán al menos 2 años de experiencia en Machine Learning, Deep Learning y procesamiento de imagen. La posición ofrece un salario a partir de 26.000 € y ...

Lead Value Engineer — AI Driven Value Advisory

Celonis is seeking a Lead Value Engineer in Madrid to transform business processes through innovation and value realization. In this critical role, you will establish best practices and lead cross-functional projects to drive success within Value Engineering. Successful candidates will demonstrate owne ...

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 ...

Lead AI Engineer — Madrid (Stock Options & Impact)

Fever is looking for a Lead AI Engineer in Madrid to drive the company-wide AI transformation. This role requires building and leading high-performance teams to apply AI across various business domains. Candidates should have strong software engineering skills in Python, hands-on experience in AI system design, ...

LLM Engineer | Quantum AI & Model Optimization (Hybrid)

A dynamic technology company is seeking a Junior/Mid-level Machine Learning Engineer to join their team in Zaragoza. The role involves designing techniques to improve Large Language Models using innovative quantum technologies. Candidates should have at least 2 years of experience in deep learning, excellent Pyt ...

Senior Software Engineer AI Fintech foundation (Spain)

About The Team Hopper's Fintech Foundation team sits at the centre of the company's mission: reshaping how more than 100 million monthly active users experience travel. It owns the pricing engine that balances customer demand against financial risk across dozens of partners — including Capital On ...

Staff Machine Learning Engineer for AI Product

We are creating freedom for SMEs to succeed by delivering Europe’s leading finance workspace with banking at its core, complemented by financial tools. Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,600+ employees and serves over 600,000 customers across 8 European countries. ...

Senior AI Agent & Workflow Engineer LLM Orchestration

Zurich 56 Company Ltd in Barcelona is looking for a Senior AI Agent & Workflow Engineer to design and implement workflows for agentic systems. The ideal candidate will have over 5 years of experience in Python development and production-level systems with Large Language Models. This role requires stron ...

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