Marcell H.

Marcell H.

Budapest, Hungary

Data Scientist

11 years of exp.


Profile Summary

Dynamic data scientist is proficient in predictive modeling, exploratory data analysis, and scalable data pipelines. Experienced with tools such as Python, R, SQL, TensorFlow, and Spark. Thrives in collaborative, innovative environments, delivering impactful solutions.

Primary Skills

Python | 8 yrsPyTorch | 8 yrsScikit-Learn | 8 yrsTensorFlow | 8 yrs

Culture Profile

In workplace, I am known for . . .
  • my problem-solving skills.
  • my ability to inspire.
I thrive in environments . . .
  • that provide the freedom to experiment and explore new ideas without fear of failure.
  • that challenge me to continuously learn and grow.
I struggle in environments . . .
  • that are overly hierarchical and rigid.
  • that are characterized by constant chaos and frequent changes.

Work Experience

Egis Pharmaceuticals PLC

Senior Data Scientist
  • Apr, 2019 - Present
  • Remote
  • Implemented an innovative data anomaly detection system, reducing false positives by 25% and enabling early detection of potential issues, resulting in a 30% decrease in operational downtime.
  • Developed a predictive maintenance model for equipment, optimizing maintenance schedules and reducing maintenance costs by 20% while increasing equipment reliability by 15%.
  • Led the creation of a customer lifetime value (CLV) prediction model, enabling targeted marketing efforts and increasing CLV by 18% through personalized customer engagement strategies.
  • Established a data-driven employee retention program, identifying key factors influencing turnover and implementing targeted interventions, resulting in a 25% reduction in employee churn and associated hiring costs.

Skills

PythonData AnalysisMachine LearningMachine Learning ModelsAmazon DataZoneAmazon Quantum Ledger DatabaseAWS Data ExchangeAWS Data PipelineAWS Database Migration ServiceAWS DataSyncAWS Glue Data QualityAzure Data BoxAzure Machine LearningAzure Spot Virtual Machines

Industries

Manufacturing

XAPT

Data Scientist
  • May, 2018 - Apr, 2019
  • Remote
  • Spearheaded the implementation of a data-driven pricing optimization strategy, resulting in a 12% increase in overall revenue and a 20% improvement in profit margins.
  • Developed and deployed a custom recommendation engine, increasing cross-selling opportunities by 18% and enhancing the personalized user experience.
  • Led the development of a comprehensive data governance policy, ensuring compliance with data privacy regulations and mitigating risks associated with data breaches, thereby enhancing customer trust and loyalty.
  • Collaborated with the research and development team to analyze market trends and customer preferences, informing product development decisions and contributing to a 15% increase in market share within six months.

Skills

PythonData AnalysisMachine LearningMachine Learning ModelsAmazon DataZoneAmazon Quantum Ledger DatabaseAWS Data ExchangeAWS Data PipelineAWS Database Migration ServiceAWS DataSyncAWS Glue Data QualityAzure Data BoxAzure Machine LearningAzure Spot Virtual MachinesData Science Virtual Machines

Industries

IT Services

Vodafone

Insight Specialist
  • Aug, 2016 - Nov, 2017
  • Remote
  • Initiated a data normalization project, standardizing data formats across disparate systems and streamlining data integration processes, resulting in a 20% reduction in data processing time.
  • Developed and implemented a customer churn prediction model, enabling proactive retention strategies and reducing churn rates by 15%.
  • Collaborated with product development teams to analyze user feedback data, leading to the identification of key product improvement areas and a subsequent 10% increase in customer satisfaction scores.
  • Established a data storytelling framework, transforming complex analytical findings into compelling narratives for executive stakeholders, facilitating data-driven decision-making processes and fostering a culture of data literacy within the organization.

Skills

PythonData AnalysisAmazon DataZoneAmazon Quantum Ledger DatabaseAWS Data ExchangeAWS Data PipelineAWS Database Migration ServiceAWS DataSyncAWS Glue Data QualityAzure Data Box

Industries

Telecommunications

Aon Hewitt

Data Specialist
  • Jan, 2013 - Aug, 2016
  • Remote
  • Directed a cross-functional team in the development of a custom anomaly detection system, resulting in a 25% decrease in fraud-related losses.
  • Implemented a data-driven approach to optimize supply chain logistics, reducing transportation costs by 15% and improving delivery efficiency by 20%.
  • Spearheaded the creation of a predictive maintenance model for critical machinery, reducing downtime by 30% and saving the company $500,000 annually in maintenance costs.
  • Led the integration of external data sources into internal analytics systems, expanding the scope of insights available to the company and improving decision-making processes across departments.

Skills

PythonData AnalysisMachine LearningMachine Learning ModelsAmazon DataZoneAmazon Quantum Ledger DatabaseAWS Data ExchangeAWS Data PipelineAWS Database Migration ServiceAWS DataSyncAWS Glue Data QualityAzure Data BoxAzure Machine LearningAzure Spot Virtual MachinesVirtual MachinesWindows Virtual Machines

Industries

Financial ServicesFintech

Education

Bachelor's degree
  • Sociology
  • Pázmány Péter Katolikus Egyetem, Hungary
  • 2013
Master's degree
  • Survey Statistics
  • Eötvös Loránd University, Hungary
  • 2017

Certifications

Deep Learning Specialization
  • Coursera
  • 2022
Sequence Models
  • Coursera
  • 2021
Convolutional Neural Networks
  • Coursera
  • 2021
Structuring Machine Learning Projects
  • Coursera
  • 2021
Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization
  • Coursera
  • 2020
Neural Networks and Deep Learning
  • Coursera
  • 2019

All Skills

  • Languages

    • Python | 8 yrs
  • Cloud

    • AWS | 6 yrs
    • Amazon DataZone | 6 yrs
    • Amazon Quantum Ledger Database | 6 yrs
    • AWS Data Exchange | 7 yrs
    • AWS Data Pipeline | 7 yrs
    • AWS Database Migration Service | 7 yrs
    • AWS DataSync | 5 yrs
    • AWS Glue Data Quality | 5 yrs
    • Azure Data Box | 5 yrs
    • Azure Machine Learning | 7 yrs
    • Azure Spot Virtual Machines | 6 yrs
    • Data Science Virtual Machines | 7 yrs
    • Virtual Machines | 7 yrs
    • Windows Virtual Machines | 7 yrs
  • Databases

    • SQL Server | 5 yrs
  • Tools

    • GitHub | 5 yrs
    • Gitlab | 5 yrs
  • AI

    • Data Analysis | 5 yrs
    • Machine Learning | 7 yrs
    • Machine Learning Models | 7 yrs
  • Libraries

    • NumPy | 6 yrs
    • Pandas | 6 yrs
    • PyTorch | 8 yrs
    • Scikit-Learn | 8 yrs
    • TensorFlow | 8 yrs