Data Scientist

hace 1 semana

Valencia, Valencia, España Kaleris A tiempo completo

Job Description:

About the Role

Kaleris is seeking a passionate and pragmatic Data Scientist to join our AIML team in building the next generation of AI solutions for logistics and supply chain. You will design, implement, and validate analytical and learning-based models to power optimization, routing, and decision-making across our products.

Responsibilities

  • Design, implement, and optimize end-to-end ML/RL workflows for dynamic decision-making and operational optimization.
  • Build and maintain training environments to safely evaluate model behavior prior to live deployment.
  • Develop robust data pipelines for ingestion, cleaning, feature engineering, and labeling; conduct EDA, hypothesis testing, and model diagnostics.
  • Define rewards, constraints, and safety checks; plan offline evaluations and controlled experiments to validate model performance.
  • Validate and operate production models: define acceptance criteria and test plans, continuously monitor performance/latency/drift, investigate anomalies, and apply corrective measures in partnership with software engineering.
  • Ensure responsible AI practices, model governance, and reproducible experimentation throughout the ML lifecycle.
  • Collaborate with product, engineering, and operations to translate business goals into measurable ML objectives, success metrics, and deployment plans.
  • Contribute to requirements/design/code reviews; submit major solution components for peer review prior to deployment.
  • Produce clear documentation, visualizations, and stakeholder-ready narratives; plan sprint work, track tasks, and report progress.

Requirements

  • Bachelor's or Master's in a quantitative field (Computer Science, Statistics, Mathematics, Operations Research, Engineering).
  • 2–4 years of relevant experience in data science/ML.
  • Solid background in statistics, data modeling, machine learning, and visualization.
  • Practical experience applying reinforcement learning concepts (e.g., policy learning, reward design, evaluation) to real-world problems.
  • Proficiency in Python and one deep learning framework (PyTorch or TensorFlow).
  • Strong data skills: SQL, Pandas, NumPy, Scikit-learn; visualization with Matplotlib/Seaborn/Plotly.
  • Software craftsmanship: Git, unit testing, code reviews, and reproducible experiments (e.g., MLflow).
  • Experience deploying models to cloud environments (Azure/AWS/GCP) using Docker/Kubernetes and CI/CD.
  • Comfortable working with global/distributed teams; effective communication, problem-solving, and professionalism under pressure.

Preferred

  • Simulation experience (discrete-event or agent-based) and familiarity with queueing/ stochastic modeling.
  • Logistics/supply-chain domain exposure (terminal operations, yard management, transportation networks, inventory flows).
  • MLOps practices: model versioning, monitoring, and automated retraining.
  • Experience with optimization methods and decision intelligence in complex, noisy environments.

Why Join Kaleris?

  • Competitive salary and comprehensive benefits.
  • Inclusive, diverse, and collaborative team culture.
  • The chance to build AI products at the frontier of decision intelligence for the supply chain.
  • Opportunities to grow your domain expertise while delivering measurable impact in real-world operations.

Kaleris is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

  • Data Scientist

    hace 3 días

    Valencia, Valencia, España PowerUp Global A tiempo completo

    PowerUp is a performance intelligence platform, inspired by elite sports. Just as world-class athletes rely on data and coaching to reach peak performance, we help employees, teams, and organisations do the same. By uncovering and addressing the root causes that hold people back, PowerUp's software delivers highly personalised, data-driven insights and...

  • Data Scientist

    hace 1 semana

    Valencia, Valencia, España Kaleris A tiempo completo

    Job DescriptionAbout the RoleKaleris is seeking a passionate and pragmatic Data Scientist to join our AIML team in building the next generation of AI solutions for logistics and supply chain. You will design, implement, and validate analytical and learning-based models to power optimization, routing, and decision-making across our...

  • Data Scientist

    hace 3 días

    Valencia, Valencia, España Mercadona Tech A tiempo completo

    Sobre el rolEn Mercadona Tech, la spin-off innovadora de Mercadona dedicada a transformar la experiencia de compra online de productos de supermercado, estamos en búsqueda de un/aData Scientistpara unirse a nuestro Tech Hub enValencia.Nuestro equipo está compuesto actualmente por 5 personas con un perfil generalista de datos. Buscamos a una persona...

  • Data Scientist

    hace 2 semanas

    Valencia, Valencia, España Mercadona Tech A tiempo completo 55.000 € - 70.000 €

    Sobre el rolEn Mercadona Tech, la spin-off innovadora de Mercadona dedicada a transformar la experiencia de compra online de productos de supermercado, estamos en búsqueda de un/a Data Scientist para unirse a nuestro Tech Hub en Valencia o Madrid. Nuestro equipo está compuesto actualmente por 5 personas con un perfil generalista de datos. Buscamos a una...

  • Data Scientist

    hace 2 semanas

    Valencia, Valencia, España Mercadona Tech A tiempo completo

    Sobre el rolEn Mercadona Tech, la spin-off innovadora de Mercadona dedicada a transformar la experiencia de compra online de productos de supermercado, estamos en búsqueda de un/a Data Scientist para unirse a nuestro Tech Hub en Valencia o Madrid.Nuestro equipo está compuesto actualmente por 5 personas con un perfil generalista de datos. Buscamos a una...

  • Senior Data Scientist

    hace 1 semana

    Valencia, Valencia, España Kaleris A tiempo completo

    Job Description: About the RoleKaleris is seeking an experienced Senior Data Scientist to lead the design and delivery of machine learning and reinforcement learning solutions across our logistics and supply chain products. You will own end-to-end modeling initiatives—from problem framing and data strategy through validation and production...

  • Data Science

    hace 1 semana

    Valencia, Valencia, España Latency A tiempo completo

    About Latency DataWe are a rapidly growing deep-tech startup building the next generation of AI-powered intelligence for the private markets. Our AI/Data Science team is composed of talented, humble, and curious individuals with backgrounds in high-tech startups and academia.The positionWe are now looking for a PhD-holding Senior Data Scientist & AI Engineer...

  • Medical Representative Valencia

    hace 3 días

    Valencia, Valencia, España Bial A tiempo completo

    Únete a nuestra misión de mejorar vidas en todo el mundoLos Delegados de Información Médica de BIAL tienen la misión de Gestionar la actividad de acuerdo con el modelo de comunicación y las estrategias de focalización definidas y necesarias para la creación de valor de los HCP's, conforme a los objetivos definidos y cumpliendo los requisitos de...

  • Data Scientist

    hace 1 semana

    Valencia, España Strategy Big Data A tiempo completo

    Strategy Big Data Nos encontramos en la búsqueda de personas entusiastas, proactivas y que sean capaces de entender las necesidades del negocio. Actualmente tenemos abierta una vacante de Data Scientist. Requisitos imprescindibles Experiencia de al menos 2 años como científico de datos en entorno Big Data Experiencia en la elaboración de modelos de...

  • Data Scientist

    hace 2 semanas

    Valencia, España K2 Partnering Solutions A tiempo completo

    Senior Data Scientist – Logistics & Supply Chain (Freelance)We are looking for aSenior Data Scientist (Freelance)to deliver data-driven solutions for logistics and supply chain optimization, working closely with operations and business teams.What you’ll doOptimize logistics networks, picking routes, and packing processesBuild forecasting, optimization,...

  • Data Scientist

    hace 2 semanas

    Valencia, España K2 Partnering Solutions A tiempo completo

    Senior Data Scientist – Logistics & Supply Chain (Freelance) We are looking for aSenior Data Scientist (Freelance)to deliver data-driven solutions for logistics and supply chain optimization, working closely with operations and business teams.What you’ll do Optimize logistics networks, picking routes, and packing processes Build forecasting,...

  • Data Scientist

    hace 1 semana

    Valencia, España Optimis Tech A tiempo completo

    DATA SCIENTIST – SUPPLY CHAIN | POWERING SMARTER DECISIONS AT SCALELocation: Hybrid in BarcelonaLanguage: English (professional level)Contract: 6 months freelance contract + extensionStart Date: FebruaryRate: Up to €300/dayOnsite Requirement: 2–3 days per week in BarcelonaSummary:Our client, a leading global technology company , is looking for a Data...

  • Data Scientist

    hace 1 semana

    Valencia, España Optimis Tech A tiempo completo

    DATA SCIENTIST – SUPPLY CHAIN | POWERING SMARTER DECISIONS AT SCALE Location: Hybrid in Barcelona Language: English (professional level) Contract: 6 months freelance contract + extension Start Date: February Rate: Up to €300/day Onsite Requirement: 2–3 days per week in Barcelona Summary: Our client, a leading global technology company , is looking for...

  • Data Scientist

    hace 1 semana

    Valencia, España Optimis Tech A tiempo completo

    DATA SCIENTIST – SUPPLY CHAIN | POWERING SMARTER DECISIONS AT SCALELocation:Hybrid in BarcelonaLanguage:English (professional level)Contract:6 months freelance contract + extensionStart Date:FebruaryRate:Up to €300/dayOnsite Requirement:2–3 days per week in BarcelonaSummary:Our client, aleading global technology company , is looking for aData Scientist...

  • Data Scientist

    hace 3 días

    Valencia, España Robert Walters A tiempo completo

    Desde Robert Walters Valencia, estamos buscando Senior Data Engineer para una importante empresa del sector.Buscamos un perfil Data Scientist para una empresa líder en su sector, con un equipo innovador y en crecimiento.Experiencia en proyectos de IA : Ha aplicado técnicas y algoritmos de Deep Learning y Machine Learning para resolver problemas...

  • Data Scientist

    hace 3 días

    Valencia, España Robert Walters A tiempo completo

    Desde Robert Walters Valencia, estamos buscando Senior Data Engineer para una importante empresa del sector.Buscamos un perfil Data Scientist para una empresa líder en su sector, con un equipo innovador y en crecimiento.Experiencia en proyectos de IA: Ha aplicado técnicas y algoritmos de Deep Learning y Machine Learning para resolver problemas...

  • Data Scientist

    hace 4 semanas

    Valencia, España Agap2 España A tiempo completo

    Buscamos un/a Data Scientist con fuerte orientación a negocio para desarrollar modelos analíticos avanzados y generar insights accionables.Funciones principalesDesarrollo de modelos analíticos en Python y/o R para generar insights de negocio.Análisis avanzado de datos:Cruce de múltiples fuentesRoot cause analysisCorrelación, uplift, eficiencia de...

  • Data Scientist

    hace 4 semanas

    Valencia, España agap2 España A tiempo completo

    If you’re looking for a change, want new challenges, and you specialize in Data… keep reading because this opportunity will interest you!We are looking for a Senior Data Scientist to join a stable position at one of our main clients in the aviation industry. As a Data Scientist, you will work closely with multidisciplinary teams to identify business...