193,695+ Software Testing Validation Engineer Python Java Jobs in Spain — Top Companies Hiring June 2026

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Senior Physics‑Driven ML Engineer: AI for Design & Optimization

A global electronic design firm in Barcelona is seeking a Senior Applied ML Engineer to design advanced ML architectures that integrate physics insights and AI techniques. This role emphasizes collaboration with RF experts and demands a deep understanding of scientific computing and machine learning. Ideal candi ...

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 Privacy by Design Engineer Security & Compliance

Scopely seeks a Senior Security Compliance Engineer for our Information Security team in Barcelona. This role involves embedding privacy into workflows, building tools for compliance operations, and conducting privacy assessments. Ideal candidates will have over 5 years of experience in information security, str ...

Senior Data Engineer Databricks & AI/ML Platform

Zurich Insurance in Barcelona is looking for a Senior Data Engineer to lead the development of our Databricks-based data warehouse and advanced analytics platform. The role supports institutional clients with cutting-edge data solutions. The ideal candidate will have a relevant degree and at least 4 ye ...

Senior Data & Analytics Engineer – Microsoft Fabric & Azure

EY busca incorporar a un Senior Data & Analytics Engineer – Ecosistema Microsoft en Madrid. Se requiere más de 3 años de experiencia en proyectos de datos en cloud, en especial en Azure y Fabric, donde diseñarás arquitecturas de datos y construirás pipelines ETL/ELT. El candidato ideal debe tener conoc ...

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 ...

Data Engineer: Scalable Pipelines & GenAI Platform

Guesty is seeking a talented Data Engineer to join our dynamic team in Barcelona. The ideal candidate will lead the design, development, and maintenance of scalable data systems while collaborating with cross-functional teams to embed business logic into data pipelines. With a focus on cloud infrastruc ...

AI Research Engineer (PhD) Hybrid Remote, Flexible Perks

NeuralTrust, a Barcelona-based startup, is seeking an AI Research Engineer with a PhD to lead their product vision and work closely with enterprise clients. This role involves designing AI components, applying state-of-the-art research, and collaborating with product teams. Candidates should have stron ...

Data Engineer AWS — Remote Cloud Data Platforms

Keepler Data Tech busca un Data Engineer AWS en Sevilla para construir plataformas de datos en entornos cloud con AWS. Se requieren 2-3 años de experiencia en ingeniería de datos, conocimientos en PYTHON y manejo de herramientas como Spark y SQL. Ofrecemos un ambiente de trabajo colaborativo con benefi ...

ML Engineer Apprentice — Fully Funded Master’s in Barcelona

HARBOUR.SPACE Institute of Technology is seeking a mid-level ML & AI Engineer for a unique work-study opportunity. You'll build and deploy ML models while completing a fully-funded Master's in Data and Computer Science in Barcelona. Key qualifications include 3+ years of experience in machine learning, ...

Senior Linux Platform Engineer Hybrid & Complex Systems

arsys ES is seeking a Senior Linux Platform Engineer to ensure the stability, performance, and evolution of their complex hosting platform in Logroño, Spain. This technical role involves operating large-scale Linux infrastructure, providing advanced support for incidents, and automating processes using scripting ...

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 ...

Revenue Ops Data Engineer Onsite Madrid

Blip is seeking a Mid-Level Data Engineer to join our Revenue Operations team in Madrid. This role is crucial for building and maintaining data pipelines essential for strategic revenue decisions, enhancing the quality and availability of data across various departments. The ideal candidate will have p ...

Autonomous UAV & Aerial Robotics Research Engineer

Eurecat - Technology Centre in Cerdanyola del Vallès is looking for a motivated researcher/engineer in the field of aerial robotics. The selected candidate will develop next-generation autonomous aerial systems using cutting-edge technology. Responsibilities include guiding AI-driven robotics concepts, ...

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 ...

Senior AI Backend Engineer — Production Ready GenAI APIs

BME | Bolsas y Mercados Españoles is seeking a Senior AI Backend Engineer to join the AI Engineering team. This role focuses on backend ownership, APIs, and integrations for AI productization in GenAI and Data Mining areas. The ideal candidate will have deep proficiency in Python, with experience in de ...

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 ...

AI Value Engineer Orbit Graduate Program (Japan)

A leading SaaS company is seeking an Associate AI Applied Engineer to join their global Value Engineering team in Madrid. The role involves collaborating with clients to identify business challenges and showcasing the benefits of Celonis Process Intelligence. Candidates should have a degree in Engineering or Com ...

Remote Data Engineer II Cloud Pipelines & Databricks

A leading global real estate firm is seeking a Data Engineer to join their Capital Markets Data Engineering team. This remote role focuses on designing and developing data solutions that integrate advanced technologies to enhance productivity. Key qualifications include 3-5 years of data engineering experience, ...

Senior AI/ML Engineer — End to End MLOps & Production

A leading AI solutions provider in Barcelona is seeking an AI Machine Learning Engineer responsible for developing and deploying complex AI initiatives. This high-impact role involves managing the end-to-end lifecycle of ML solutions while ensuring integration into robust systems. Candidates should have a Master ...

Data Engineer, Revenue Ops (Madrid On Site)

A technology company in Madrid seeks a skilled Mid-Level Data Engineer to build, scale, and maintain data pipelines for strategic revenue decisions. The role involves collaboration across marketing, sales, and finance while ensuring data quality and reliability. Candidates should have proven experience in SQL an ...

Senior ML Engineer Recommendations Engine (Hybrid)

A leading advertising technology firm in Barcelona is seeking a Senior Machine Learning Engineer to develop and optimize a creative selection recommendation engine. The ideal candidate must have over 5 years of experience in Data Science or Machine Learning, a solid background in Mathematics or related fields, a ...

Remote Data Engineer: Build Self Serve Data Platform

TheFork, a Tripadvisor company, is looking for a Data Engineer to join our Core Data team. You will design and implement high-quality data pipelines, collaborating closely with cross-functional teams to enhance our Data Platform capabilities. A minimum of 3 years of experience in data engineering is required, ...

Senior Data Engineer Data Pipelines, Cloud & Big Data

Paul Marlex busca un/a Senior Data Engineer para su equipo en Barcelona o Lleida. Serás responsable de diseñar y mantener arquitecturas de datos, así como de construir y optimizar pipelines de datos para garantizar la integración y disponibilidad de la información. Con una sólida experiencia en program ...

Principal Engineer, Content Delivery & AI Tooling

King, located in Barcelona, is seeking a Principal Engineer for the Content Distribution team of Candy Crush Soda Saga. You will lead the technical depth in delivering fresh content and improving level progression through creative, scalable solutions. With strong C++ and Python skills, your role will i ...

Platform Engineer: Agent Harness & Orchestration

Kyndryl is seeking a Platform Engineer in Madrid, Spain, to develop an internal agent harness that transforms foundation models into AI agents. Your role will involve designing the runtime, orchestration, and guardrails for scalable and reliable productivity. You should have over 5 years of experience ...

Senior Data Engineer: Azure Databricks for Tax Automation

Concentrix is seeking a highly skilled Senior Data Engineer in La Coruña, Spain, to implement an Azure Databricks solution for automating tax reporting. This full-time permanent position involves managing data ingestion at scale and collaborating with cross-functional teams. The ideal candidate will ha ...

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 ...

Senior Real Time Analytics Engineer

Aircall is looking for an engaged Senior Data Engineer to join their growing Engineering Team in Madrid. This role involves managing analytics and event platform stack for over 22,000 customers, delivering near real-time solutions, and mentoring team members. The ideal candidate will have extensive exp ...

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 ...

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 ...

Data Engineer ETL | PySpark, AWS, Flexible/Remote

Mática Partners en Santiago de Compostela busca un/a Data Engineer con 1‑3 años de experiencia para trabajar en proyectos de alto impacto en el sector retail. Ofrecemos un contrato indefinido y un salario entre 26.000 y 32.000 euros al año, según experiencia. El puesto incluye formación especializada, ...

Data Engineer Industrial Platform (Hybrid: 1 Day Remote)

Verdalia Bioenergy is looking for a Data Engineer in Madrid to build and scale data infrastructure that supports decision-making across various teams. This role entails hands-on responsibility for data quality and governance as a key contributor to the data architecture. Applicants should have 6+ years ...

Senior Data Engineer: Architect Data Pipelines & Insights

Bunge Iberica SA is looking for a Senior Data Engineer based in Sant Just Desvern, Spain. This role focuses on leveraging data analytics and technology to build high-quality data pipelines that drive new data products and analytic solutions. The ideal candidate should have a post-graduate degree in a S ...

Cloud Data Platform Engineer — Remote 40%

A leading financial services company in Madrid is seeking a Data Platform Engineer to design and implement a cloud-native data science platform. The role involves building production-ready data pipelines and collaborating with key stakeholders across the organization. The ideal candidate has over 4 years of expe ...

Senior MLOps Engineer: Databricks & MLflow Lead

A technology company located in Madrid is seeking a Senior MLOps Engineer to build and scale machine learning operations. The ideal candidate will have over 5 years of experience in MLOps, alongside hands-on expertise with Databricks and MLflow. Responsibilities include deploying and optimizing machine learning ...

Founding AI Engineer for FinTech Trading (LLMs) Madrid

FinTech start-up in Madrid is seeking an AI Engineer to implement AI and large language model functionality in trading systems. The role involves designing, developing, and deploying innovative solutions while collaborating with cross-functional teams. The ideal candidate will have a strong proficiency ...

Senior Data Engineer for Global Health AI Platforms

Insud Pharma in Valencia is looking for a Senior Data Engineer to support its AI Labs. The role focuses on building scalable data foundations for projects directed at improving health in vulnerable communities. The ideal candidate must have strong SQL and Python skills, along with experience in managin ...

Hybrid Data Engineer in Madrid — Flexible Hours, PySpark

Capitole Consulting busca un Data Engineer con experiencia para unirse a su equipo. Este puesto se ofrece en formato híbrido desde Madrid, permitiendo trabajar cuatro días desde casa y un día en la oficina. Se valoran al menos 3-4 años de experiencia, así como habilidades en Python, PySpark y SQL avanzado. </ ...

Computer Vision & AI Engineer for Real Time Security

Vicomtech is looking for a Computer Vision and Artificial Intelligence Engineer in Bilbao to design and develop advanced algorithms focused on security video analytics. The role entails collaboration with cross-functional teams and participation in cutting-edge research, providing a dynamic work environment. ...

AWS Data Engineer — Remote, Flexible Hours

Keepler Data Tech busca un Data Engineer en Vitoria, España, para unirse a su equipo y ayudar en la transformación digital de los clientes. El candidato ideal debe tener experiencia en proyectos de ingeniería de datos, conocimiento en herramientas como Spark y Python, y fluidez en inglés. Ofrecemos fle ...

Remote Snowflake Data Engineer Cloud Pipelines & Analytics

Logicalis Spain está buscando un Data Engineer Snowflake con mentalidad abierta y curiosidad. El rol implica trabajar con Snowflake y diseñar pipelines en entornos Cloud como Azure, AWS o GCP. Se requiere mínimo 2-3 años de experiencia, dominio de SQL, y habilidades en Python y Spark. Se valoran entorn ...

Ingeniero/a LLM/IA — Agentes Inteligentes a Escala

Diverger en Madrid busca un LLM/IA Engineer para diseñar agentes inteligentes escalables integrando LLMs en soluciones reales. El candidato ideal debe tener experiencia en arquitectura modular y buena utilización de Python y arquitecturas asíncronas. Te encargarás de crear herramientas innovadoras que ...

Arquitecto de Contenido IA – End to End (Azure)

ALTEN en Málaga busca un AI Engineer para participar en un innovador proyecto del sector farmacéutico. Este profesional diseñará, desarrollará e implementará soluciones de inteligencia artificial para optimizar el ciclo de vida del contenido, trabajando con modelos de IA y Azure. Se requiere experienci ...

Hybrid Full Stack Data Engineer for AI & Life Sciences

MIGx is seeking a Full Stack Engineer to join their Data and AI Engineering team in Barcelona, Spain. This role involves creating secure systems that connect frontend user experiences with backend architectures, focusing on enhancing data and AI applications in the life sciences sector. The ideal candi ...

AI First ML Engineer Azure & MLOps

NTT Data Europe & Latam en Barcelona busca un Machine Learning Engineer para unirse a su equipo. Este rol implica el diseño, entrenamiento y optimización de modelos de Machine Learning, con un enfoque en herramientas como Python y Azure Machine Learning. Se requiere un fuerte dominio de MLOps y colaboración c ...

Senior AWS Cloud Engineer – Hybrid (Barcelona)

Aubay Spain está buscando un/a Cloud Engineer Senior para un puesto en Barcelona que permite trabajo híbrido de 3-4 días en remoto. Buscamos a alguien que diseñe y administre infraestructuras AWS seguras y escalables, y que tenga un sólido conocimiento en Infraestructura como Código usando Terraform y Python. ...

Data Engineer y Data Scientist — IA, Trabajo Híbrido

GfK - An NIQ busca un Data Engineer en Tarragona para diseñar y mantener pipelines de datos eficientes. Buscamos a alguien con experiencia en ETL y habilidad en Python y SQL, que se sienta cómodo gestionando grandes volúmenes de datos de diversas fuentes. Valoramos un ingeniero con al menos 2 años de e ...

AI Backend Engineer: Production LLMs & Multi‑Step Agent Flows

Fds, A Dxc Technology está buscando un AI Engineer en Galicia, La Coruña. La persona será responsable de diseñar e implementar servicios backend escalables usando Python, y de integrar LLMs en entornos de producción, optimizando sus flujos y coste. El puesto ofrece la oportunidad de trabajar en una com ...

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    Software Testing Validation Engineer Python Java Jobs in Spain Job Search Guide, Trends and Insights