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

Professional job seekers finding Spain jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

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. ...

Hybrid Data Engineer in Madrid — Flexible Hours, PySpark

Capitole en Zaragoza está buscando un Data Engineer para unirse a su equipo. Se requiere experiencia de 3-4 años en diseño y desarrollo de pipelines de datos, así como en optimización de procesos en entornos cloud. La posición es híbrida, ofreciendo un día en oficina y cuatro de teletrabajo a la semana, con f ...

Hybrid Barcelona: Senior Data Scientist, GenAI, NLP & Risk

Innoit Consulting is seeking a Senior Data Scientist / Machine Learning Engineer for a hybrid role in Barcelona. You will work on advanced ML and AI solutions, collaborating with various teams to enhance data-driven decisions. This position requires over 7 years of relevant experience, especially in financial ...

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 ...

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 ...

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 ...

Ingeniero/a Senior de IA — LLMs y Sistemas Multiagente

Oxigent Technologies busca un/a Senior AI Engineer en Barcelona para desarrollar la plataforma de Agentic LLMs y sistemas multi-agente con tecnología de vanguardia en un entorno innovador. La posición requiere experiencia sólida con LLMs y Python, así como un buen nivel de inglés. Se ofrece un salario ...

Data Engineer Snowflake — Remoto y Proyectos de Analítica

Logicalis Spain en Bilbao busca un Data Engineer experto en Snowflake que esté dispuesto a trabajar en un entorno 100% remoto. El candidato ideal tendrá al menos 2-3 años de experiencia y habilidades en SQL, Python y herramientas de ETL/ELT. La posición ofrece un entorno colaborativo y oportunidades de ...

Senior AI Engineer – Real Time LLM & Multi Agent Innovation

Oxigent Technologies busca un/a Senior AI Engineer en Barcelona para un proyecto innovador en IA dentro de un entorno de alta tecnología. Este rol implica diseñar y evolucionar plataformas LLM multi-agente, implementar soluciones de IA/ML, y garantizar la fiabilidad de los sistemas. Se ofrece un contra ...

Senior Data Engineer: Azure, Data Governance & Dashboards

Oxigent Technologies busca un/a Sr. Data Engineer para unirse a su equipo en Madrid. En este rol, serás fundamental en el diseño y garantía de arquitecturas de datos escalables y robustas, asegurando que cumplan con las necesidades del negocio. Se requiere más de 4 años de experiencia en Data Engineeri ...

Data Engineer Aws & Snowflake Cloud Pipelines Arbo

SEIDOR busca un/a Cloud Engineer con enfoque en Data Engineering para contribuir al desarrollo de plataformas de datos en la nube desde su sede en Arbo, Galicia. El candidato desempeñará un papel fundamental en la creación y mantenimiento de soluciones cloud utilizando servicios de AWS. Se valorará ...

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 ...

Ingeniero de IA Generativa: LLMs y Agentes

Neoris busca un Ingeniero/a de IA Generativa para diseñar e implementar soluciones avanzadas utilizando LLMs y arquitecturas RAG en Madrid. Deberás tener experiencia en la creación de sistemas de agentes autónomos y en el tratamiento de grandes volúmenes de información. Los candidatos ideales tienen al ...

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 ...

Senior Data Engineer – Build Scalable FinTech Data Pipelines

A leading technology firm in Madrid seeks a Senior Data Engineer to design scalable data pipelines in the financial sector. The role involves integrating APIs, managing data quality, and collaborating with teams. A Bachelor's or Master's in a related field and 5+ years of experience are required. Proficiency in ...

Kubernetes DevOps & Platform Engineer – CI/CD, Cloud

act digital EMEA - Alter Solutions busca un/a DevOps Engineer para unirse a un proyecto estratégico en Valladolid. Se requiere un perfil con al menos 3 años de experiencia en automatización y contenedores, capaz de administrar plataformas modernas basadas en Kubernetes. El candidato ideal tendrá habili ...

Analytics Engineer: Core Data Models & BI

King, located in Barcelona, is seeking an Analytics Engineer to support their data-driven decisions. This role involves engaging with stakeholders, designing data models, and creating BI products for self-service reporting. Ideal candidates will merge technical skills in SQL and Python with a strong understan ...

Barcelona Hybrid: Senior ML Engineer, GenAI & NLP

Innoit Consulting in Spain is looking for a Senior Data Scientist/Machine Learning Engineer to work in a hybrid role focusing on advanced ML and AI solutions. You will drive projects in risk analytics and develop various models for forecasting and operational efficiency. Candidates should have a minimu ...

Senior AI/MLOps Engineer Remote & Agentic AI

thyssenkrupp Elevator (TKE) is seeking a Senior AI / MLOps Engineer to lead AI integration and development efforts. You will design and maintain systems, ensuring our data and AI applications meet business needs, while collaborating with teams for successful project execution. The ideal candidate has o ...

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 ...

Senior ML Engineer: LLMs, Agentic AI & Pipelines

A leading technology firm in Barcelona is seeking a Machine Learning Engineer to innovate and productize LLM-based AI pipelines. The role demands strong programming skills in Python and C++, experience with ML/DL techniques, and the capacity to work in a collaborative environment with domain experts. Ideal candi ...

Lead Applied AI Engineer: LangChain & RAG in Production (Remote)

A global consultancy firm is seeking a Senior Lead Applied AI Engineer to design and implement internal AI applications that enhance operational efficiency. You will leverage your strong Python skills and proven experience in applied AI engineering to build and operate scalable solutions. The role offers a uniqu ...

Senior AI Engineer: Applied Solutions & Impact

A global consultancy is seeking a Senior Lead Applied AI Engineer in Barcelona to design and build production-grade internal AI applications. You will collaborate with AI Product Managers to ensure impactful solutions while establishing best engineering practices within a growing Data & AI function. Ideal candid ...

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 ...

Hybrid Data Engineer in Madrid — Flexible Hours, PySpark

Capitole está buscando un Data Engineer para un puesto híbrido en Madrid. Se ofrece flexibilidad horaria y jornada intensiva los viernes. El candidato ideal tendrá entre 3 y 4 años de experiencia y deberá conocer Python, PySpark y SQL avanzado. Entre las responsabilidades se incluye el diseño y desarro ...

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 ...

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 ...

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 ...

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 ...

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 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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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' ...

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 ...

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 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 ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Buffering Video...

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