269,936+ Java Python Data Integration Engineer Jobs in Spain — Top Companies Hiring June 2026

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Full Stack Engineer: Build Scalable Fintech

A technology solutions provider is looking for a Full Stack Engineer in Madrid. The ideal candidate has over 3 years of experience in software development, strong skills in Python and React, and is eager to innovate in the debt and fintech industry. Responsibilities include architecting and optimizing infrastruc ...

Junior Open Source AI/ML Software Engineer

Ersilia, a non‑profit organization, seeks a Junior Software Engineer in Barcelona. You will contribute to the Ersilia Model Hub, focusing on open-source AI tools for global health research. The role requires curiosity and teamwork to integrate machine learning models and support collaboration with rese ...

Generative AI Backend Engineer | GraphQL & FastAPI

Astek is hiring a Backend Engineer to support a fintech partner in Spain. The role focuses on creating robust backend systems that power AI applications. The ideal candidate will have a degree in Computer Science and 1–2 years of experience in backend development. Proficiency in Python, FastAPI, and Gr ...

Senior Agentic AI Engineer for Autonomous LLMs

Factech Servicios Informáticos en Barcelona busca un/a Agentic AI Engineer para transformar la interacción con servicios financieros mediante IA. El candidato/a liderará el desarrollo de una plataforma innovadora, diseñando y evolucionando agentes autónomos que automaticen procesos críticos y mejoren la exper ...

Senior LLM Engineer — Build & Optimize Transformer Models

European Tech Recruit is seeking a Senior LLM Engineer or Researcher to join a rapidly scaling deep-tech company in Barcelona. In this role, you will design, train, and optimize large-scale transformer models, contributing to model development, optimization, and deployment. The ideal candidate has a Ph ...

Hybrid Mechanical Engineer Space Systems & Validation

Indra Group is seeking a Mechanical Engineer to design and validate mechanical systems for Defence and Space applications. The ideal candidate will contribute to complex engineering projects and ensure compliance with engineering standards. Located in Torrejón de Ardoz, Spain, this role requires over 5 ...

Hybrid LLM Engineer (Mid/Senior) Build Cutting Edge AI

European Tech Recruit is seeking a Mid / Senior LLM Engineer for a deep tech company. You will design and refine language models, collaborating with various teams to integrate them into products. The position offers a hybrid work model, with a competitive salary range of €70,000-€80,000, plus bonuses. ...

Innovative Product Qualification Testing Engineer

Element Materials Technology in Seville is hiring a Product Qualification Testing Engineer to join our team. This role involves non-standard testing and supporting customers on technical issues. The ideal candidate will have an engineering degree, proficiency in programming languages like Python and Ma ...

Senior ML Engineer: LLM & MLOps Lead

Workato is seeking a Senior ML/AI Engineer located in Barcelona, Spain. In this role, you will build and operate AI services relying on large-language models and custom machine-learning models. The ideal candidate will have at least 5 years of experience in machine learning, expert proficiency in Pytho ...

AI Solutions Architect (Azure) for Scalable Deployments

Astek in Valencia seeks an experienced AI Solutions Engineer to design and deliver end-to-end AI-powered solutions. The role involves building scalable applications using Microsoft Azure AI services and integrating AI models into business workflows. Ideal candidates have 8+ years in software developmen ...

Junior Cybersecurity Evaluator for Assessments

Applus+ Laboratories is seeking a Junior Cybersecurity Engineer to join their IT & Cybersecurity team in Madrid, Spain. The role involves participating in various technical projects, conducting security evaluations, and contributing to R&D projects focused on cybersecurity innovations. Candidates shoul ...

Orbit Graduate: AI Value Engineer (Benelux)

Process Analytics Factory - PAFnow by Celonis seeks an Associate Applied AI Engineer in Madrid. This entry-level role is part of a 12-month Orbit Graduate Program, offering a unique career start in the SaaS industry with hands-on learning and mentorship. The successful candidate will engage with client ...

GenAI Platform Architect & MLOps Leader

Clarity AI in Madrid is seeking a Senior MLE Staff Engineer to design and develop a core platform for deploying and managing Large Language Models (LLMs). In this role, you will bridge the gap between machine learning experimentation and production, ensuring high performance and reliability. The succes ...

Senior Software Engineer, FX Platform (FinTech)

Ebury, located in Madrid, is seeking a Senior Software Engineer to enhance our multi-currency accounting system. You'll be instrumental in building and optimizing services, working collaboratively with teams across South America and Europe. This role offers a hybrid work model, with 4 days in the offic ...

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 ...

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 ...

AI/ML Engineer — Lisbon Onsite (Relocation Support)

Air Apps is seeking an AI/ML Engineer to design and optimize machine learning models for their mobile applications. The role involves collaborating with cross-functional teams to create intelligent features and improve user experience. With 4+ years of experience in AI/ML, applicants should be proficie ...

Senior Backend Architect for AI Infra & Multi Tenant

Die Deutsche Telekom in Granada sucht einen erfahrenen Senior Backend Engineer, der für die Architektur und Wartung der Backend-Plattform-Infrastruktur verantwortlich ist. Die Rolle umfasst die Entwicklung skalierbarer Microservices und die Implementierung robuster CI/CD-Pipelines, um eine hohe Performance un ...

Senior Backend Engineer — AI Powered Pricing & Autopilot

Lighthouse in Barcelona is seeking a Senior Backend Engineer to develop and maintain their core pricing manager system. You will collaborate closely with product managers and engineers, building distributed services and APIs. Strong experience in Go or Python/Django is required, with a focus on delivering imp ...

Backend Engineer — AI Driven Hospitality APIs

Lighthouse is seeking a Backend Engineer in Barcelona to develop high-performance APIs that provide valuable insights to over 100,000 hotels worldwide. You will work closely with a skilled team to support existing customers and develop features for new clients. The ideal candidate will have strong expe ...

Senior Reverse Engineering & Bot Evasion Engineer Flexible

Nabla is seeking a talented Reverse Engineer to push systems to their limits while maintaining high ethical standards. This role involves analyzing web and mobile applications, overcoming security mechanisms, and developing innovative tools. You will primarily work with protocols such as TLS, HTTP/2, and WebS ...

LLM Inference Architect: RAG + Multi GPU Optimization

Airbus Defence & Space is looking for an LLM Inference Engineer in Getafe to optimize the efficiency and scalability of Generative AI systems. Responsibilities include model serving optimization and multi-GPU management. Candidates should have 3+ years of experience in ML Engineering and proficiency in Python ...

Mid Level AI & Platform Engineer Mosaic & Agent Platform

ADEREN is seeking a medior AI/Platform Engineer to support and implement Mosaic AI into a governed, multi-tenant platform. You will work on shipping golden paths, SDK/CLI/templates, and evaluation patterns. The ideal candidate should have solid experience with Databricks Mosaic AI tools, Python program ...

Remote AI Engineer: Backend & Agent Orchestration

Product Hackers busca un/a Software Engineer en Madrid con fuerte enfoque en IA y más de 2-3 años de experiencia en desarrollo de software. El candidato ideal deberá dominar Python y TypeScript y tener experiencia práctica en la integración de IA en productos reales. La empresa ofrece un entorno remoto ...

Ingeniero de Software – IA y Cloud | Lidera Soluciones ML

SEIDOR en Barcelona busca un/a Software Engineer – AI & Cloud con sólida experiencia en desarrollo backend y especialización en inteligencia artificial. El candidato ideal debe dominar Python y Node.js, y tener conocimientos de despliegue en AWS. Ofrecemos un ambiente de trabajo flexible, oportunidades ...

Senior Fintech Engineer — Real Time Payments, Hybrid Malaga

Brite AB is looking for a Senior Software Engineer to join our Connectivity Team in Málaga. This high-impact role focuses on building scalable, secure real-time payment solutions, where you’ll design components connecting Brite with banks across Europe. The ideal candidate has over 5 years of software ...

Senior Software Engineer – AI & Precision Medicine

Tempus AI, Inc. in Barcelona is seeking a Senior Software Engineer I who is passionate about precision medicine and AI's impact on healthcare. The ideal candidate will have experience in both frontend and backend technologies, proficient in TypeScript and Python, and capable of navigating ambiguity to deliver ...

Senior Personalization ML Engineer Real Time Content

Storyful in Barcelona is looking for a Senior Machine Learning Engineer specializing in personalization. In this role, you will design and build systems that deliver relevant, personalized experiences across digital products. The ideal candidate has over 3 years of experience applying machine learning ...

Senior Privacy & Compliance Engineer Hybrid (Barcelona)

Scopely is hiring a Senior Compliance Engineer for its Information Security team in Barcelona on a hybrid basis. The role involves embedding privacy by design, improving privacy engineering capabilities, and conducting privacy assessments. Candidates should have 5+ years of experience in information security or ...

Applied ML Engineer Build Scalable ML for Gaming

Superbet is looking for a Machine Learning Engineer to join their Applied ML & Research team in Madrid, Spain. In this role, you will develop innovative machine learning solutions that enhance security and user experience across their gaming platforms. Ideal candidates have a Bachelor’s degree in a relevant fiel ...

Fullstack Engineer — Global Contracting & Renewals

Alan is seeking a Backend Engineer in Almería, Spain, to build scalable systems for their health insurance operations. As part of the team, you'll design solutions to improve operational efficiency and enhance user experience. The role involves using Python, Flask, and React within a collaborative environment. S ...

Senior Linux Platform Engineer: Scale Complex Systems

arsys ES is seeking a Senior Linux Platform Engineer for its complex hosting platform in Alcobendas, Spain. You'll ensure the stability and performance of critical production systems while collaborating with international teams. The role requires strong Linux administration skills and experience with automati ...

AI/ML Engineer — Build & Optimize AI Solutions

Ayvens in Madrid is looking for a talented ML/AI Engineer to develop and implement innovative AI and ML solutions. The successful candidate will collaborate across teams and ensure solutions meet business needs while staying updated on the latest technologies. A minimum of 3 years' experience in AI/ML ...

Senior ML Engineer Production & MLOps Expert

A leading European online fashion destination is seeking an experienced Machine Learning Engineer in Málaga, Spain. In this role, you will enhance and scale existing machine learning solutions using technologies like PyTorch and Kafka. The ideal candidate should have several years of professional experience with ...

Mobile AI/ML Engineer in Lisbon Relocation Support

A technology company in Madrid is seeking an experienced AI/ML Engineer to design and optimize machine learning models for mobile applications. You will work closely with product managers and engineers, integrating AI-driven features that enhance user experiences. The ideal candidate has over 4 years of AI/ML ex ...

Staff AI Engineer Remote, Flexible Hours, Equity & PTO

A leading AI solutions firm located in Madrid is seeking a Staff AI Engineer who thrives in a fast-paced environment to drive product development in Generative AI. The position involves optimizing AI models, conducting experiments, and ensuring high-quality outputs while balancing costs. Ideal candidates possess ...

Senior Security Engineer: Cloud, AppSec & SDLC

Flanks seeks a Senior Security Engineer to lead security initiatives and integrate security into their SaaS platform for wealth management. Located in Barcelona, the successful candidate will evolve security practices, collaborate with teams, and define best practices. The position requires deep experi ...

Ingeniero DevOps Azure | Infraestructura Cloud, CI/CD

Optimissa está buscando un DevOps Engineer con experiencia en Azure para diseñar y gestionar infraestructuras cloud escalables. Las responsabilidades incluyen la creación de pipelines CI/CD y la implementación de Infraestructura como Código. Se requiere al menos 5 años de experiencia en roles similares ...

Fusion Research Engineer Modeling & Tool Dev

The Barcelona Supercomputing Center is seeking a Junior Research Engineer for the Fusion Group, focusing on computer-based modeling and simulation tools development. This position requires a master’s in fusion engineering and programming experience in Fortran and Python. Applicants should have basic kn ...

AI DevOps Engineer — Hybrid/Remote (3 days/week)

Ambit Iberia is looking for an AI DevOps Engineer in Sant Cugat del Vallès, Spain, to lead the transformation of software management through intelligent automation. The role involves developing automation solutions, designing scalable frameworks, and optimizing CI/CD pipelines. The ideal candidate shou ...

Senior Agentic AI Engineer — Automation & Multi Agent

Tenth Revolution Group is looking for a Senior Agentic AI Engineer to join their dynamic team in Madrid. In this role, you will design and develop innovative AI solutions that automate IT support processes and enhance self-service capabilities. The ideal candidate has strong Python development skills, ...

ML/AI Platform Engineer — MLOps, Cloud & Edge

Siemens Energy in Barcelona is seeking a Software Engineer to join their Scalable Core team. In this role, you will design and develop advanced ML/AI platforms, ensuring seamless deployment across various environments. The ideal candidate will have a Master's degree in Computer Science or similar, over five year ...

Remote AI Engineer for Azure OCR & Document AI

Lognext busca un/a AI Engineer para unirse a su equipo en Madrid. El candidato ideal tiene experiencia en desarrollo Python y proyectos de inteligencia artificial, especialmente con Azure Cognitive Services. Las responsabilidades incluyen desarrollo de soluciones de IA, integración con Azure, y soporte ...

Remote AI Engineer GenAI Platform & LLM Apps

Agap2 España busca un AI Engineer para desarrollar una plataforma interna basada en IA Generativa y LLMs. Buscan un profesional con 2-3 años de experiencia en IA Generativa y un buen manejo de Python, que pueda trabajar de forma autónoma en un entorno dinámico. Ofrecen modalidad de trabajo remota, cont ...

ML Engineer IA para Diseño 3D/CAD y Automatización

Grupo TECDATA Engineering busca un/a ML Engineer especializado en IA aplicada a 3D/CAD para colaborar en proyectos innovadores de diseño y automatización 3D. Se requiere experiencia en desarrollo de modelos de IA y dominio de Python, así como experiencia con frameworks como TensorFlow y PyTorch. El can ...

Senior Data Analyst Payment Success & Merchant Insights

Checkout.com is seeking a Senior Data Analyst in Barcelona. The role entails optimizing payment flows for Tier-1 merchants by leveraging data analysis and collaboration with engineers. Candidates should have over 4 years of analytical experience, strong SQL and Python skills, and fluency in Spanish. The position ...

Principal Data Analyst, Marketing Analytics

Airalo’s fully remote Data team is growing. You’ll turn numbers into decisions that shape the future of our business, collaborating with cross‑functional teams to solve complex problems and influence how millions of travellers stay connected. This role will own and execute our marketing measurement strategy—from ...

Bioinformatics Software Developer in Cancer Genomics (Research Assistant) (LAB/26/05)

Overview IRB Barcelona is seeking a Bioinformatics Software Developer to join the Biomedical Genomics Lab led by Dr. Núria López‑Bigas at IRB Barcelona. The position focuses on developing, maintaining, and enhancing bioinformatics tools for cancer genomics research and clinical integration. ...

Customer Exp., Product & Pricing Specialist

Role Value Proposition This role is pivotal in transforming the Life business in Iberia. Its purpose is to create and manage competitive value propositions, combining customer insight, advanced modelling, predictive analytics, agile delivery and automation. Key Responsibilities <ul ...

Azure AI Engineer: Cloud, AI Agents & CI/CD Pipelines

Experis busca un Azure AI Engineer para un proyecto estable e innovador en España. El candidato se encargará de diseñar y desplegar soluciones en Azure Cloud, así como crear pipelines con Terraform y desarrollar agentes de IA. Se requiere más de 5 años de experiencia en entornos cloud, conocimientos só ...

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