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We are looking for a Si cree que es el candidato ideal para la siguiente oportunidad, envíe su solicitud después de leer la descripción completa. Senior Data Scientist to join our mission to make our platform an even safer place to trade. You will be responsible for designing, building, and continuously enhancing production-grade, end-to-end machine learning models that detect fraud and assess user risk in the Trust and Safety domain. You will be part of a cross-functional business area composed of multiple teams including experts from Product, Customer Service, Analytics, Data and Engineering. Together, you’ll tackle one of the most meaningful challenges in online platforms: building trust at scale. This is your opportunity to improve the experience of millions of users and have an impact by building a platform that enables sustainable trade for everyone. Your role: Understand fraud patterns, user trust needs and identify where Machine Learning can bring the greatest impact. Train and evaluation of ML models from scratch or fine-tune existing ones for fraud detection and behavioural analytics. Work as part of an agile cross-functional development team with a “win together, lose together” mindset, having end-to-end responsibility from design and development to deployment, monitoring, and maintenance in production. Engineer and select features from large, complex datasets to improve model accuracy and robustness. Monitor and evaluate ML models in production, conduct model experiments, comparing variants and identifying improvement and retraining needs. Ensure data and model quality, integrity, and reproducibility in production environments. Share your knowledge, evolve best practices with your colleagues to boost machine learning at Kleinanzeigen strengthening our ML community. Proactively identify opportunities to apply ML for fraud detection and increased user trust. Promote ethical AI use, ensuring fairness, transparency, and accountability in all models developed. Proactive collaboration with data and application engineers to shape data models and ensure ML-readiness for production. Qualifications Master’s degree in computer science, data science, statistics, mathematics or related field (or equivalent experience). At least 5+ years of proven experience applying ML methods to build and deploy production-grade models (e.g., XGBoost, Random Forests, Logistic Regression, Neural Networks, Transformers). Strong proficiency in Python and ML libraries (e.g., scikit-learn, PyTorch, XGBoost), with proven experience applying classical ML to structured and time series data, including feature engineering, model evaluation (e.g., precision/recall, AUC), and deploying scalable models (e.g., XGBoost, Random Forests, Logistic Regression) to production. Solid understanding of ML/DS best practices, including model validation, A/B testing, feature engineering, and pipeline management ensuring quality and robustness of data science outputs. Practical experience with Large Language Models (LLMs) for tasks such as classification, summarization, or risk signal extraction from unstructured text, with a clear understanding of evaluation and ethical considerations in production use. True team player mentality, with excellent communication skills including ability to explain complex ML results to non-technical stakeholders. Preferred qualifications Knowledge and experience with fraud detection or Trust & Safety domain. Familiarity with cloud-based environments (e.g., AWS) and production ML tools (e.g., SageMaker, Airflow, MLflow). Experience working in Agile teams with modern DevOps/dataops practices. xcskxlj Awareness of ethical and regulatory concerns in AI systems. #J-18808-Ljbffr

A1 Digital makes digitalization happen. With scalable services and innovative solutions in the areas of IoT, cloud and security, we are the ideal partner for digital projects in medium-sized businesses. A1 Digital currently supports more than 500 companies in their digital transformation. Our experts at our locations in Vienna, Munich, Madrid and Lausanne are already working with the technologies of tomorrow today. This is a path we can only take together – join in! Si está considerando enviar una solicitud, asegúrese de pulsar el botón de solicitar de abajo después de leer la descripción completa. Headquartered in Lausanne, Switzerland, Exoscale develops and manages a public Cloud Infrastructure. Since 2013, we won market shares against the market leaders, thanks to our approach towards strict data privacy, ease of use, high-quality support and scalability. Today, experts recognize Exoscale as a robust alternative, built in Europe, for Europe. Location: Spain Job Purpose: Exoscale is growing — and we are looking for a driven, results-oriented Sales Specialist to accelerate our expansion in Spain. Your mission is clear: generate new business, win new customers, and grow revenue. You thrive in hunting mode, proactively identifying opportunities, building pipelines, and closing deals in the cloud infrastructure space. Working closely with Presales and Marketing, you will take full ownership of new customer acquisition while strategically expanding existing accounts. What you do: • Proactively identify, approach, and acquire new customers for Exoscale’s cloud platform (IaaS, Kubernetes, storage, networking, etc.)., • Build and manage a strong sales pipeline through outbound prospecting, social selling, networking, events, and partner collaboration., • Position Exoscale as a trusted cloud provider for modern, scalable, and sovereign infrastructure solutions., • Lead the full sales cycle — from prospecting and qualification to proposal, negotiation, and closing., • Drive upselling and cross-selling within existing accounts by identifying growth potential., • Collaborate closely with Presales to develop compelling technical and commercial solutions tailored to customer needs., • Gather market intelligence and competitor insights to strengthen our positioning in Spain., • Represent Exoscale at industry events, trade fairs, and networking opportunities., • Travel as required (approx. 20%). What you offer: • Proven success in B2B hunting sales, ideally in cloud infrastructure, IaaS, PaaS, Kubernetes, or related technologies., • Strong track record of acquiring new logos and closing complex solution deals and experience in Tenders for public and private sector., • Experience in SaaS, software, or cloud service environments., • Confidence in managing long sales cycles and engaging with technical and business decision-makers., • Excellent negotiation and closing skills with a strong results-driven mindset., • Entrepreneurial spirit and high level of autonomy — you take initiative and make things happen., • Fluency in Spanish and English (written and spoken). What makes you unique: • Affinity for professional social networks, • Strong communication and closing skills, • High self-motivation and ability to work in a team, • Customer- and service-oriented mindset and approach What we offer: • Flexible working hours, mobile working., • Autonomous working conditions with a lot of freedom to create., • Constant learning with many possibilities and offers., • Team events as well as trainings and further education., • Compensation is aligned with experience and qualifications. A1 Digital is committed to diversity and inclusion and encourages applications from all qualified candidates. We look forward to your application! xcskxlj We look forward to your application!

Overview This year marks 10 years since we launched the idea that simplifying our customers lives is possible by offering an innovative solution that allows them to easily subscribe to, manage, and switch all types of contracts through a unique and intuitive platform. Desplácese hacia abajo para encontrar los detalles completos de la oferta de trabajo, incluyendo la experiencia requerida y las funciones y tareas asociadas. In that time, we have supported more than 1.5 million customers in France, Spain, and Italy, while investing in new verticals and positioning ourselves as a highly efficient, innovative, and competitive scale-up in a rapidly growing market. With over 900 employees across 3 locations, we are solidifying our position as a market leader in Europe. We are always on the lookout for talent ready to join a dedicated and motivated team driven by a meaningful project. Working with us means embracing a culture of excellence, innovation, and real impact. As a Head of Real Estate Italy, you will be responsible for the Strategic Partnerships in Italy, handling partners acquisition as an individual contributor and managing one Strategic Partnership Executive in charge of Account management. Responsibilities • Leading and executing the sales strategy, • Define the objectives for the team, • Mentor the team and help on deal closings (acquisition or upsells) and account strategy to drive results, • Close the biggest accounts as an individual contributorBusiness unit steering, • Reports performance to the Head of partnerships; leading quarterly business reviews, • Run multiple analyses, including problem solving investigation (root cause) and market sizings, • Identify growth levers on the market (expanding the offering; refining the go-to-market strategy)Team management, • Recruit, coach and develop a team, with one FTE to manage to date, could be >5 in the future if successfulRequirements, • 3 yrs in Strategy consulting or 5 yrs in Enterprise sales (management position), • Strong decision making and problem solving skills, ability to build relationships Thrive in an international and inclusive environment: everyone has a place at papernest. With over 46 different nationalities, it’s not uncommon here to start a sentence in English and finish it en franais or en espagnol ¡ Compensation: a plan for Subscription Warrants for Company Creators (BSPCE) in accordance with company regulations, as well as a Pluxee card to manage your tax level through a voluntary compensation system across different services (transportation, dining, and childcare). Benefits: as a home insurance provider and a supplier of green electricity and gas, we offer attractive deals to our employees. After all, there’s no reason why things should only be simpler for our customers! Health: medical insurance through Alan or Sanitas to manage your healthcare expenses in an ultra-simple, paperless way, with up to 50% coverage by papernest (after 6 months in the company). Meals & partnerships: a healthy breakfast offered every Tuesday, as well as partnerships with various services in Barcelona (restaurants, sports, leisure, and care centers). Training: the development of our employees is essential. You will have access to ongoing training tailored to your goals, whether it involves technical, language, or managerial skills. Career Development: numerous opportunities are available for you to grow, whether by deepening your expertise or exploring new paths. We support you in your professional ambitions. Remote Work: enjoy 2 days of remote work per week to optimize your focus and efficiency. Hiring process • 1st call with Clémence Talent Acquisition Manager, • Interview with Sarah Bois, Head of Partnerships Europe, your future manager, • Business Case Don’t hesitate any longer—we look forward to meeting you! Regardless of your age, gender, background, religion, sexual orientation, or disability, there’s a place for you with us. Our selection processes are designed to be inclusive, and our work environment is adapted to everyone’s needs. We particularly encourage applications from women. Even if you feel that you don’t meet all the criteria outlined in this job posting, please know that every application is valuable. We strongly believe that diverse and varied backgrounds enrich our team, and we will carefully consider your application. xcskxlj Parity and diversity are essential assets to our success. #J-18808-Ljbffr

Quieres liderar proyectos industriales con impacto real en una planta de producción en plena evolución?.Desplácese hacia abajo para obtener una visión general completa de lo que requerirá este trabajo.Es usted el candidato adecuado para esta oportunidad?.Te motiva mejorar procesos, coordinar eq

Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers. At Amazon, we hire the best minds in technology to innovate and build on behalf of our customers.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. Are you a scientist passionate about advancing the frontiers of computer vision, machine learning, or large language models? Do you want to work on innovative research projects that lead to innovative products a

The role supports the alignment of employee rewards with results that support the company’s strategic direction and business outcomes, promoting a philosophy that advances HP's objectives and aligns with our culture. If you'd like more information about HP’s EEO Policy or your EEO rights as an a

Entidad líder en el sector asegurador, busca incorporar en sus oficinas centrales de Barcelona, un/a:.Presente su candidatura después de leer los siguientes requisitos de habilidades y cualificaciones para este puesto.ESPECIALISTA EN GESTIÓN DE RIESGOS TECNOLÓGICOS (DATA-DRIVEN).Identificar, eva

Descubra más sobre las tareas diarias, las responsabilidades generales y la experiencia requerida para esta oportunidad desplazándose hacia abajo ahora.VidaCaixa, compañía aseguradora del Grupo CaixaBank y líder en el sector a nivel nacional, en el marco de su firme compromiso con la innovació

Una multinacional líder en consumo en Barcelona busca un/a profesional para gestionar cuentas nacionales y ejecutar la estrategia comercial.Asegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción del puesto a continuación.Se requiere habili

Una importante empresa del sector asegurador busca un AI Engineer en Barcelona o Madrid para liderar proyectos de analítica avanzada.Por favor, presente su candidatura sin demora si su perfil encaja bien con este puesto, debido al alto nivel de interés.La persona seleccionada se encargará de dise

Importante multinacional líder en el sector de gran consumo, precisa incorporar en sus oficinas ubicadas en Barcelona:.Le gusta esta oportunidad? Asegúrese de inscribirse rápido, ya que se espera un gran volumen de solicitudes.Desplácese hacia abajo para leer la descripción completa del puesto.

Are you a results-driven professional with a passion for digital marketing and a talent for sales? If you thrive in a fast-paced environment and love helping businesses grow, this is the opportunity for you!. Sales & Marketing Consultant , you’ll collaborate with businesses to craft tailored adver

Grow Your Career as a Sales and Marketing Specialist!. Take the next step in your digital marketing journey in a dynamic, results-driven environment where innovation and performance matter. Manage a portfolio of new advertisers and ensure a smooth activation and onboarding experience.

Grow Your Career as a Sales and Marketing Specialist! Take the next step in your digital marketing journey in a dynamic, results-driven environment where innovation and performance matter. As a Sales and Marketing Specialist, you will act as a trusted partner for advertisers starting out on the Goog

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Are you a results-driven professional with a passion for digital marketing and a talent for sales? If you thrive in a fast-paced environment and love helping businesses grow, this is the opportunity for you!. Sales & Marketing Consultant , you’ll collaborate with businesses to craft tailored adver

Global Controller Corporate Manufacturing Manager. That’s why we need a Global Biopharma Business Controller like you. You will provide financial business support to the company’s management and work closely with the Plant Controllers in order to analyze the actual results and variances compared

That’s why we need a Global Biopharma Business Controller like you. You will provide financial business support to the company’s management and work closely with the Plant Controllers in order to analyze the actual results and variances compared to the business plan.

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Amazon is an equal opportunities employer. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. The Discovery Tech team helps customers discover and engage with new, popular and relevant products across Amazon worldwide. You will be responsible for creating and building critical services that automatically

Conducts quality control analysis on essential oils and aroma chemicals, performing tests, interpreting results, and ensuring product compliance.

Validate analytical or numerical results using Python (NumPy, SciPy, Pandas);. This opportunity is a good fit for automotive engineers with an experience in python open to part-time, non-permanent projects. Strong Python proficiency for numerical validation.

Strong Python proficiency for numerical validation. Validate analytical or numerical results using Python (NumPy, SciPy, Pandas);. This opportunity is a good fit for automotive engineers with an experience in python open to part-time, non-permanent projects.

Validate analytical or numerical results using Python (NumPy, SciPy, Pandas). Strong Python proficiency for numerical validation.

The position offers a chance to lead transformative initiatives and foster collaboration across functions, ensuring impactful customer experiences and business results. This role involves defining and executing omnichannel strategies to enhance customer engagement. Candidates should have 5-10 years

Perform statistical analyses of data from the laboratories using R and possibly other languages (SAS, …) or standard statistical software used in Sanofi (JMP, SIMCA, Modde, internal tools), to deliver statistical reports/memo and presentations of statistical work package results to project team me

Key responsibilities Lead the Pre-Sales function strategically, with a focus on mid- and long-term results. Manage and optimize the sales funnel, ensuring quality, conversion, and predictability. Previous experience in technology companies is a plus.

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Amazon is an equal opportunities employer. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers.

Proven experience in e-commerce, digital performance, CRO, product ownership or commercial digital roles. The E-commerce Business Owner partners with UX/UI and Digital Insights colleagues to translate performance metrics into business results, and business needs into actionable digital improvements,

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Una consultora de recursos humanos busca un profesional estratégico para liderar la evolución de los canales comerciales en un cliente del sector de Gran Consumo en Barcelona.Inscríbase ahora, lea los detalles del trabajo desplazándose hacia abajo.Verifique que posee las habilidades necesarias a

We are seeking a motivated and results-driven Inbound + Outbound Sales Representative.As a key member, you'll be responsible for proactively identifying, qualifying, and generating new business opportunities for Education products.If you are passionate about sales and have a strong desire to learn a

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Amazon Operations is the backbone of the Amazon customer experience. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers.

Importante multinacional del sector Gran Consumo ubicada en Barcelona, necesita incorporar en su Departamento de Recursos Humanos a un/a:.Participar en el desarrollo del mapa de procesos de recursos humanos.Hacer seguimiento de la modelación e implementación de procesos en el país cumpliendo con

Amazon is an equal opportunities employer. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers.

We’re looking for an experienced and results-driven SEO Manager with strong project management skills to lead the growth and optimization of our SEO initiatives, coordinating with the team to drive revenue, engagement, and brand awareness. Continuously improving SEO-related processes for greater e

Amazon is an equal opportunities employer. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Our inclusive culture empowers Amazonians to deliver the best results for our customers.

A leading insurance firm based in Barcelona is seeking a Junior Investment Performance Analyst.Todo listo para enviar su solicitud? Por favor, lea la descripción al menos una vez antes de hacer clic en "Solicitar".In this role, you will measure portfolio performance, analyze investment results, and

Te apasiona el performance marketing y quieres generar un impacto real en la vida de las personas? Únete a una.Presente su candidatura después de leer los siguientes requisitos de habilidades y cualificaciones para este puesto.Barcelona , en plena expansión y con una visión clara: transformar la

Job Opportunity: Graphic Designer – Full-Time (Permanent Contract) – Fast-Growing Marketing Agency (Barcelona / Hybrid). To support our continued growth, we are looking for a creative Graphic Designer who can turn marketing ideas into high-impact visuals that drive results.

Experience in a scientific area related to the research position will be appreciated. A cover/motivation letter with a statement of interest in English, specifying the specific area and topics for consideration, plus two references for further contact. Disseminate results through peer‑review publi