Raphael Waithaka

Machine Learning Engineer Volunteer at Black Mental Health Matters Inc
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Contact Information
us****@****om
(386) 825-5501
Location
Nairobi County, Kenya, KE

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Bio

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Credentials

  • Data Science
    JENGA School
    Aug, 2021
    - Nov, 2024
  • Data Science Program
    JENGA School
    Aug, 2021
    - Nov, 2024
  • Data Driven: Harnessing Data and AI to Reinvent Customer Engagement (getAbstract Summary)
    LinkedIn
    Feb, 2021
    - Nov, 2024
  • Data Science
    Udemy
    Nov, 2019
    - Nov, 2024

Experience

    • United States
    • Mental Health Care
    • 1 - 100 Employee
    • Machine Learning Engineer Volunteer
      • Feb 2023 - Present

      Consulting with managers to determine and refine machine learning objectives. Transforming data science prototypes and applying appropriate ML algorithms and tools. Ensuring the algorithms generate accurate user recommendations. Developing NLP algorithms to analyze huge volumes of historical data to make predictions. Evaluating existing machine learning (ML) processes, performing statistical analysis to resolve data set problems, and enhancing the accuracy of our AI software's predictive automation capabilities. Show less

    • Kenya
    • Data Infrastructure and Analytics
    • 1 - 100 Employee
    • Data Modeler
      • May 2023 - Jul 2023

      Performing entity relationship and dimensional modeling using best practices and Maintain logical, conceptual, and physical data models, data dictionaries, and data flow charts. Analyzing data models, structures and makes recommendations to ensure high performance and storage efficiency. Design and develop complex SQL queries, stored procedures, tables, views, and ETL packages for large-scale management reporting using Erwin. Creating, configure, optimize, and troubleshooting SQL and DDL code. Collaborate closely with solution architects, DBAs, and application developers to optimize data models, code, and indexing in DB2 and SQL Server. Conduct application analysis and design data modeling strategies to collect and integrate data into the centralized data warehouse. Participate in SQL development reviews, including the review of ad hoc scripts, stored procedures, triggers, and other database objects. Ensure data integrity by analyzing, testing, validating, and certifying data system tables in alignment with business requirements and technical specifications. Show less

    • Kenya
    • Higher Education
    • 1 - 100 Employee
    • Data Team Lead and a co-founding member
      • Jan 2020 - Dec 2022

      JENGA School is a professional development institution bridging a vital gap in the Tech ecosystem by providing rigorous programs in Data Science, AI, and Software Engineering. We are impacting our programs by fostering leadership, excellence, and impact. Conducted market research through designing and administering surveys and polls. Conducted and implemented the required policies and procedures that reflected actual goals, tasks and workflows, while meeting all regulatory compliance requirements. Implemented and oversaw the deployment of warehouse management system software applications to enable centralized management of tasks and data such as ERPNext. Synthesized complex analytics and derived insights and procedures that increase lead generation by 50%. Created dashboards for data visualization using Air–table, Tableau, and Power BI. Responsible for database administration and maintenance. Managed and ensured systems are integrated correctly to provide required services. Managed and maintained accurate and up-to-date records of customer accounts and transactions. Developed data pipelines, processes, and models to scale products. Created data frameworks to expedite decision-making, sales, and customer service, and identify opportunities. I am a champion of data democratization. Show less

    • Kenya
    • Professional Training and Coaching
    • 1 - 100 Employee
      • Nov 2019 - Nov 2021

      • Nov 2020 - Apr 2021

    • Research Assistant
      • Apr 2017 - Nov 2018

Education

  • Oracle University
    Certificate, Oracle Cloud Applications
    2023 - 2023
  • Google pour les pros
    Certificate, Professional Data Engineer
    2022 - 2023
  • Udacity
    Certificate, AWS Machine Learning Engineer
    2022 - 2022
  • JENGA School
    Certificate, Data Science
    2020 - 2021
  • Moi University
    Bachelors of Science in Applied Statistics with computing, Statistics
    2014 - 2019
  • Google Cloud Partner
    Certificate, Data Engineering
    2022 -

Community

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