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Staff Machine Learning Scientist
  • Warsaw
Staff Machine Learning Scientist
Warszawa, Warsaw, Masovian Voivodeship, Polska
VISA
25. 7. 2025
Informacje o stanowisku

technologies-expected :


  • PyTorch
  • Spark
  • Hadoop

about-project :


  • The Staff ML Scientist will collaborate with a team to conduct world-class applied AI research on financial payments data, driving innovation in alignment with Visas strategic vision by incubating new data- and AI-powered products and enhancing existing applications with machine learning and AI. This role represents an exciting opportunity to make key contributions to Visas strategic vision as a world-leading data-driven company. The successful candidate must have strong academic track record and demonstrate excellent statistical, machine learning and software engineering skills. You will be a self-starter comfortable with ambiguity, with strong attention to detail, and excellent collaboration skills.
  • This is a hybrid position. Expectation of days in office will be confirmed by your Hiring Manager.

responsibilities :


  • Develop and apply cutting-edge algorithms and models, ranging from classical machine learning to deep learning techniques, including advanced neural network architectures such as Transformers, Graph Neural Networks (GNNs), and other emerging paradigms.
  • Pioneer and apply novel data science, deep learning, and AI methodologies to address unique business challenges and drive innovation.
  • Stay up-to-date with the latest research in machine learning, deep learning, and neural network architectures, integrating relevant advancements into business solutions.
  • Build, experiment with, and implement statistical, machine learning, and deep learning algorithms - including custom techniques as well as industry-standard tools.
  • Devise and apply advanced methods for explainability and interpretability of deep learning models, including mechanistic interpretability and model transparency techniques.
  • Develop and implement adaptive learning systems, as well as methods for model validation, A/B testing, and robust performance evaluation.
  • Collaborate with data engineers, software developers, product teams, and business stakeholders to translate business requirements into impactful machine learning solutions.
  • Communicate complex technical concepts, findings, and recommendations clearly to both technical and non-technical audiences.
  • Work with both structured and unstructured data, experimenting with in-house and third-party datasets to evaluate their relevance and value for business objectives.
  • Automate all stages of the predictive pipeline to streamline development and minimize manual intervention in both development and production environments.

requirements-expected :


  • 5+ years of relevant work experience with a Bachelor’s Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience.
  • 5+ years of relevant work experience with a Bachelor’s Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience.
  • MS or PhD in a quantitative discipline such as Statistics, Data Science, Mathematics, Physics, Operations Research, Engineering, or a related field, with demonstrated strength in machine learning, deep learning, or equivalent practical experience.
  • 7+ years of experience applying data science and machine learning to solve business problems, with proficient Python coding skills and deep expertise in statistical analysis.
  • Exceptional problem-solving abilities, with experience designing and implementing complex data science solutions.
  • Hands-on experience developing and deploying deep learning models using PyTorch, including model architecture design and optimization.
  • Strong background in deep learning, including architectures such as Transformers. Experience with Large Language Models (LLMs), natural language processing (NLP), and advanced expertise in time-series modeling techniques.
  • Proficiency with big data tools and frameworks (e.g., Spark, Hadoop), and practical experience implementing MLOps practices such as model versioning, automated deployment, and production monitoring.
  • Strong understanding of model interpretability techniques, with the ability to analyze, articulate, and justify the decision-making processes of machine learning and deep learning models.

benefits :


  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • flexible working time
  • fruits
  • integration events
  • dental care
  • computer available for private use
  • retirement pension plan
  • saving & investment scheme
  • no dress code
  • video games at work
  • coffee / tea
  • drinks
  • leisure zone
  • employee referral program

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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