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Vivek Vaddina

Data Scientist
  • Unverbindlicher Tarif
    700 € /Tag
  • Berufserfahrung3-7 Jahre
  • Antwortrate100 %
  • Antwortzeit1h
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Standort und Mobilität
Standort
Hamburg, Deutschland
Ist bereit bei Ihnen im Büro zu arbeiten, in
  • Hamburg und Umkreis (bis zu 50 km)
  • Berlin und Umkreis (bis zu 50 km)
  • Munich und Umkreis (bis zu 50 km)
  • Düsseldorf und Umkreis (bis zu 50 km)
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15Follower
11Repositories
2Gists
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Fähigkeiten
Vivek in wenigen Worten
Competent Data Scientist with over six years of experience in Python programming and diverse machine learning methodologies. Proficient in developing and deploying various machine learning models, leveraging natural language processing (NLP), Large Language Models (LLMs), deep learning, statistical modeling, and traditional machine learning and optimization techniques to solve complex problems. Strong communicator and collaborator with a dedicated work ethic, delivering effective solutions. Passionate about leveraging AI for social good, driving innovation, and deeply committed to making a positive impact. Dedicated to continuous learning, and enjoys cooking, sports, and classical music.
Projekt- und Berufserfahrung
  • Freelance
    Data Scientist
    DIGITALAGENTUREN & IT-CONSULTING
    Mai 2022 - Heute (2 Jahre und 11 Monate)
    - Working as an AI for Good Engineer at Fruitpunch.ai, leading the development of data pipeline handling from preprocessing to zero shot prediction/labeling for a text-based environmental impact assessment using NLP and Large Language Models (LLMs).

    - Collaborated with HAW Hamburg on satellite imagery analysis near the Ukraine-Russian border using QGIS, assessing vegetation health and organizing workshops for the faculty on GIS exploration fundamentals.

    - Provided fraud detection expertise as a consultant for a BNPL Fintech startup, delivering reports and recommendations that improved the fraud detection rate by over 50%.
    Python Machine learning NLP Large Language Modeling LLM ChatGPT EDA data pipeline Data analysis LCA QGIS Geospatial QGIS AWS Amazon Redshift Scikit-learn Hugging Face FastAPI Git CI/CD Docker Matplotlib Data visualization Dashboards Prototype Prompt Engineering
  • Sezzle EU
    Data Scientist
    E-COMMERCE
    September 2021 - Mai 2022 (8 Monate)
    - Developed and deployed end to end machine learning-based fraud detection models from scratch for card payment transactions, reporting to the Chief Product Officer. Utilized AWS (Redshift, S3, SageMaker) for data analysis & Modeling and FastAPI for containerization.

    - Worked as the sole data scientist, collaborating with internal stakeholders throughout the modeling process. Validated data models with Pydantic and ensured REST API functionality through application containerization.
    Python numpy Pandas Scikit-learn Data science SQL PostgreSQL AWS Amazon Redshift Docker Linux FastAPI API Jupyter EDA Data analysis Data visualization Dashboard
  • FREE NOW
    Data Scientist
    TRANSPORTWESEN
    Mai 2019 - August 2021 (2 Jahre und 3 Monate)
    Hamburg, Germany
    - Developed an improved driver churn prediction model, resulting in a 25% reduction in driver churn rates.

    - Aligned GMV forecasts with business goals, achieving a 20-60% reduction in forecasting error and optimizing revenue projections.

    - Enhanced destination selection on smartphones by achieving a 38% improvement in Mean Reciprocal Rank (MRR) for personalized recommendations.
    Python Airflow ETL Pandas Scikit-learn PostgreSQL SQL Apache Presto PySpark MLFlow Metabase Redash Dashboards Miro Git GitHub Atlassian JIRA CI/CD Continuous integration Docker Jupyter
Externe Empfehlungen
Ausbildung und Abschlüsse
  • Master's degree, Media Informatics
    RWTH Aachen University
    2016
    Master's degree, Media Informatics