193,683+ Software Testing Validation Engineer Python Java Jobs in Spain — Top Companies Hiring June 2026

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Senior Data Platform Engineer (Remote First)

Keyrock in Barcelona is looking for a skilled Data Engineer to join their Central Data Team. The successful candidate will build production data systems, design data governance frameworks, and create self-serve tooling. Ideal applicants will have 8+ years of experience in data systems, strong proficiency in Pyth ...

MLOps Engineer AI Apps & CI/CD (Hybrid)

Banco Santander SA in Santander is seeking a talented MLOps Engineer Analyst to enhance our customer-centric transformation through innovative AI solutions. The role involves developing and maintaining AI applications, ensuring code quality with CI/CD pipelines, and collaborating with diverse stakeholders. Ideal ...

Data Engineer Intern Hybrid, Azure Data Platform

FSP Retail Team is seeking a Data Engineer Intern in Barcelona to support innovative data solutions using Microsoft Azure data services. The intern will work with the FSP Data Platforms & Solutions team, assisting in the development of data products and cleaning data with Python, Pyspark, and SQL. Strong maths s ...

Senior ML Engineer: Physics‑Driven AI for Engineering

Keysight Technologies SAles Spain SL. in Barcelona is looking for a Senior Machine Learning Engineer to develop and train machine-learning models that enhance engineering decision-making. The successful candidate will have a strong background in machine learning, data science, and proficiency in Python and ML fr ...

Founding ML Engineer: Build a Living Semantic Layer

JetBrains is looking for a top-class ML Engineer based in Spain to own our AI and ML engineering stack. You will design and build the ML/LLM solutions, create datasets, and collaborate with the engineering team on system design. Ideal candidates should have at least five years of experience in ML/AI, excellent P ...

Senior Analytics Engineer: Data Infrastructure & Insights Lead

Wallapop, a leading scale-up in Barcelona, is searching for a Senior Analytics Engineer to enhance its data infrastructure. You will design systems for data consolidation and showcase insights through interactive dashboards. The ideal candidate has proficiency in Python and SQL and strong experience wi ...

France Based AI Solutions Engineer — Frontline Deployed

Reconocida empresa in Madrid is seeking a Forward Deployed Engineer to join its founding team. This role combines customer-facing responsibilities with engineering tasks, ensuring that clients maximize the value of HappyRobot’s AI platform through effective onboarding and continuous support. The ideal ...

Senior Data & IA Engineer: AI Driven Data Products

Mutua Madrileña busca un/a Data Engineer Senior con sólida base técnica y orientación a negocio, especialmente en entornos bancarios. Este rol implica diseñar y construir productos de datos utilizando herramientas modernas de IA, garantizando la calidad y el rendimiento de los datos. El candidato ideal ...

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 ...

Data Engineer AWS — Hybrid, Flexible Hours

E-Frontiers busca un/a Data Engineer para unirse a su equipo en Madrid. La persona seleccionada participará en el diseño y desarrollo de soluciones en entornos cloud, enfocándose en problemas de negocio reales.El candidato ideal tiene experiencia sólida en programación con Python, así como en procesamient ...

Lead Data Platform Engineer | Palantir Foundry & AIP

Luxoft Spain is seeking a Data Platform Engineer with over 10 years of IT experience, at least 5 years in data engineering, and proficiency in Palantir Foundry. The ideal candidate will manage and optimize the data platform, ensuring high performance and security. Key qualifications include a Bachelor' ...

Field Deployment Engineer, AI Agents & Production Ready

InteractiveAI is seeking a Forward Deployed Engineer to lead the deployment of agentic AI solutions that resolve critical business challenges. You'll work with a variety of clients, leveraging your expertise in backend engineering and systems integration. Successful candidates will have 5+ years of rel ...

Senior ML Engineer, Recommendations (AdTech) | Remote 2x/wk

A leading advertising technology company in Barcelona is seeking a Senior Machine Learning Engineer to develop and optimize their creative selection recommendation engine. This role demands over 5 years of experience in data science and machine learning, as well as proficiency in Python and SQL. Candidates shoul ...

Remote Azure Data Platform Engineer Cloud & Data Innovator

VISEO - Spain busca un Azure Data Platform Engineer con 3 a 4 años de experiencia en Madrid. Este puesto ofrece la oportunidad de trabajar en proyectos innovadores de soluciones Cloud utilizando tecnologías de Microsoft, tales como Azure y Databricks. Buscamos a alguien con conocimientos en programación en Pytho ...

Generative AI Engineer for Horizon Platform (Renewables)

A leading global energy consulting firm in Barcelona is hiring an AI Engineer. This role involves creating, productizing, and evolving generative AI solutions on their cloud platform. Responsibilities include connecting to diverse data sources, designing scalable AI systems, and collaborating with teams to deliv ...

Data Science Engineer Lead — Plant Breeding (Global, Hybrid)

Fall Creek® is looking for a qualified Data Science Engineer in Sevilla, Spain, to support decision-making in plant breeding and horticultural research. The role involves designing complex databases, developing data quality models, and acting as a liaison between R&D and IT. The ideal candidate will have a stron ...

DevOps Engineer – Low Latency Trading Platform

BME | Bolsas y Mercados Españoles is looking for a talented DevOps Engineer to enhance their trading platform in Madrid. The position focuses on automating deployments and operations of a crucial low latency matching application. The ideal candidate should have strong Linux expertise, proficient Bash a ...

Senior LLM Engineer — Shape Next Gen Language Models

European Tech Recruit is seeking a Mid/Senior LLM Engineer in Madrid to design and refine language models using cutting-edge AI. This hybrid role involves collaboration with teams to integrate models into products while tackling significant challenges in LLM and NLP. The ideal candidate has at least a ...

Data Analyst & BI Engineer — Remote, Learning & Impact

Odilo is seeking a Data Analyst - BI Engineer in Madrid to enhance data-driven decision-making. You will collect and analyze vast datasets, design and maintain dashboards, and collaborate closely with teams on defining KPIs. The ideal candidate has 4+ years of experience, strong skills in SQL and Pytho ...

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 ...

BI Data Engineer — SQL, OLAP & Data Migration

Lognext busca un BI Data Engineer para unirse a su equipo en Valencia. El candidato ideal tiene sólida experiencia en entornos BI y en la transformación de datos, además de un buen nivel de SQL y conocimiento en bases de datos relacionales. Las habilidades valoradas incluyen experiencia con modelos mul ...

Senior AI Data Platform Engineer

A clinical research services provider in Madrid is seeking a Senior Data Engineer to enhance AI initiatives by developing scalable data pipelines and optimizing data infrastructure. Ideal candidates will have extensive experience in data engineering, solid programming skills in Python and Scala, and familiarity ...

Senior GenAI & MLOps Platform Engineer

Ntt Data Europe & Latam is seeking a Senior AI Engineer to join our AI & Analytics team in Madrid, Spain. You will work with multidisciplinary teams to develop intelligent systems, focusing on end-to-end AI product development and deployment. The ideal candidate will have a strong understanding of AI f ...

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 ...

Remote Senior AI & Data Systems Engineer — Fridays Off

Biome Makers is seeking a Senior AI & Data Systems Engineer to design robust AI/ML pipelines and deploy high-performance data solutions. With a focus on Generative AI, this role requires extensive Python experience and cloud algorithm development expertise. Your responsibilities will include mentoring ...

Senior BI Data Engineer: Driving Data to Business Impact

Lognext está buscando un BI Data Engineer para unirse a su equipo, trabajando para una multinacional líder en el sector asegurador. Se requiere sólida experiencia en entornos BI y transformación de datos, así como un buen nivel de SQL y experiencia con modelos multidimensionales. El candidato ideal deb ...

Senior Data Engineer: Build Scalable Pipelines & Insights

Nova is seeking a skilled Data Engineer to drive data infrastructure enhancements. The role focuses primarily on maintaining and optimizing data warehouse architecture and pipelines, with an additional emphasis on data analysis. The ideal candidate will have over 3 years of experience, strong programmi ...

Agentic ML Engineer for Adaptive Learning

Busuu invites applicants for a Machine Learning / AI Engineer role to develop innovative AI systems that enhance language learning experiences. Collaborating with a talented team, you'll build systems leveraging state-of-the-art technologies, integrating LLMs and AI frameworks. The ideal candidate shou ...

Data Engineer Cloud ELT/ETL (Azure & Databricks) Hybrid

Business Insights en Barcelona busca incorporar a un Data Engineer para diseñar y mantener soluciones de datos en la nube. Estarás involucrado en el desarrollo de pipelines ELT/ETL y colaborarás estrechamente con arquitectos y data scientists para optimizar la infraestructura de datos. Buscamos a algui ...

Data Lakehouse Architect & Senior Data Engineer

Pixie Code S.L en Ourense busca un Data Architect y un Senior Data Engineer para contribuir a un proyecto estratégico en el diseño y evolución de plataformas de datos avanzadas. Los candidatos deben tener experiencia sólida en Apache Spark y Python, así como la capacidad de definir arquitecturas modern ...

Senior Cybersecurity Architect: XDR, SIEM & Automation

EURAXESS Ireland is looking for a Senior Engineer in Madrid to lead design and development of large-scale cybersecurity solutions. The role requires expertise in Python and a strong background in automation, offensive and defensive security. Candidates should have a bachelor's degree in a relevant field and a mi ...

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 ...

GCP Data Engineer: BigQuery & Pipelines (Hybrid, Madrid)

ToBeIT busca un/a Data Engineer – GCP para trabajar en proyectos innovadores en el ecosistema cloud y data. La persona ideal tendrá experiencia en Google Cloud Platform, específicamente en BigQuery, Dataflow, Pub/Sub y Cloud Storage. Se requiere habilidad en desarrollo de pipelines de datos con Python y SQL, así ...

Palantir Foundry Data Platform Engineer — AI & RAG Lead

Luxoft Spain is looking for a Palantir Platform Engineer in Marbella. The role requires a minimum of 10 years in IT, with specific experience in data engineering and Palantir Foundry. Key responsibilities include optimizing the Palantir data platform and collaborating on AIP use cases. The ideal candid ...

Azure Databricks Data Engineer — Cloud & Big Data

Bluetab, una compañía tech en Las Palmas de Gran Canaria, busca un Data Engineer apasionado por la nube de Azure y Databricks. Se requiere experiencia de 4-5 años en ingeniería de datos y dominio de lenguajes como Scala y Python. El candidato ideal disfrutará afrontar retos complejos y optimizar pipeli ...

Data Engineer: Build Scalable Pipelines & Data Warehouses

Ust is seeking a skilled Data Engineer to work on a project with an integral customer in Santa Cruz de Tenerife, Spain. The role involves collaborating with cross-functional teams to design and deliver scalable data pipelines and warehouses while ensuring data quality and compliance. The ideal candidat ...

Aws Data Platform Engineer Flexible Hours & Data Products Badajoz

Paradigma Digital busca un Data Platform Engineer con experiencia en la implementación y mantenimiento de infraestructuras de datos en AWS. Este puesto implica colaborar con equipos de desarrollo para diseñar y optimizar procesos de datos. Se requiere experiencia sólida en Terraform, Jenkins y AWS, ...

Hybrid Electrical Power Systems Simulation Engineer – Grid & Wind

A leading wind energy company is seeking an Engineer for Electrical Simulations & Models to develop and maintain electrical simulation models. The role involves conducting grid integration studies and collaborating with Transmission System Operators. Ideal candidates should have a master's degree in Electrical E ...

Hybrid Data Engineer in Madrid — Flexible Hours, PySpark

Capitole está buscando un Data Engineer para unirse a su equipo en Madrid. Ofrecemos un formato híbrido de trabajo que combina un día en la oficina y cuatro días de teletrabajo por semana. La posición incluye flexibilidad horaria y jornada intensiva los viernes durante el verano. Valoramos la experienc ...

Data & AI Platform Engineer Intern — Hybrid Madrid

Tamarind Intelligence is seeking a Data & AI Platform Engineer Intern to contribute to the development and deployment of data pipelines and AI solutions. This hybrid role involves working in our Madrid offices, focusing on building scalable data and AI applications. The ideal candidate will possess a B ...

Senior MLOps Engineer: Cloud Pipelines & ML Automation

agap2 España busca un MLOps Engineer para trabajar en proyectos de inteligencia artificial y Machine Learning. La persona seleccionada se encargará de la industrialización y escalabilidad de modelos en entornos cloud, garantizando su automatización. Se requiere un mínimo de 4-5 años de experiencia en r ...

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 ...

ML Engineer: Production Models & LLMs (Remote)

MailerLite, based in Barcelona, is seeking a Machine Learning Engineer to develop and ship predictive models from large-scale behavioral data. You will be crucial in creating models that enhance customer engagement and streamline marketing processes. The role requires proficiency in Python and ML tools ...

Data Scientist & IA: Innovación en Análisis y ML

GfK - An NIQ busca incorporar dos nuevas posiciones en Madrid para su área de Inteligencia Artificial y Data Science. Se buscan un Data Engineer y un Data Scientist, ambos con experiencia entre 2 y 4 años en roles similares. El candidato ideal debe tener conocimientos en Python, SQL y herramientas como ...

Senior Data Engineer: Cloud Data Pipelines and Insights

VML group is looking for a Senior Data Engineer to join our Data Insights and Science team in Barcelona, Spain. The role involves building high-quality data pipelines, optimizing code for data integration, and ensuring ETL processes run efficiently. Ideal candidates will have extensive experience with Spark, Pyt ...

Senior Data Engineer Data Modeling & Analytics (Hybrid)

DATWIN, ubicado en Cataluña, busca un/a Senior Data Engineer para diseñar y construir modelos de datos escalables que soporten aplicaciones analíticas y dashboards. El rol implica trabajar con tecnologías modernas como Snowflake y Python para optimizar procesos de datos. Buscamos una persona con más de ...

ML Engineer: Deepfake & Face Liveness – Remote (Spain)

A leading technology company is seeking a Machine Learning Engineer to focus on deepfake detection and digital manipulation for identity verification. This remote role in Spain involves designing and deploying ML models, building data pipelines, and collaborating with research and product teams. Ideal candidates ...

Foundry Data Engineer — AI Pipelines & Client Impact

Unit8 is seeking an experienced Palantir Foundry Engineer to join our agile project teams in Madrid, Spain. The role involves designing and maintaining robust data solutions using the Palantir Foundry platform. Candidates should possess strong programming skills in Python, knowledge of data processing systems, a ...

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 Data Engineer — Remote Pipelines & Analytics

BlueThrone, located in Valencia, is seeking a hands-on Data Engineer to own and design the data infrastructure for mobile applications. This role includes managing the end-to-end data lifecycle, writing Python for pipelines, and partnering with analytics for reporting tools. The ideal candidate will ha ...

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