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SIN YEE WU (Mandy) Data Analytics Professional | Machine Learning Specialist
Professional Summary

Data Analytics Professional with strong foundation in business & data analysis, documentation, and data visualization. Experienced in stakeholder collaboration, requirements gathering, and BI solution implementation across retail, hospitality, and technology sectors. Building expertise in machine learning applications through recent project experience and advanced certifications.

Professional Experience

Product Business Analyst

YOOV Internet Technology (HK) Limited
  • •Conducted APAC market analysis identifying $13.9B untapped mid-market opportunity in AI automation sector
    • April 2025 – May 2025Hong Kong SAR
  • •Collaborated with cross-border development team in China to enhance UI/UX design for the product user center
  • •Implemented and tested AI OCR application, monitoring model accuracy and performance across multiple document types
  • •Engineered proof-of-concept automated validation workflows with anomaly detection capabilities, integrating cross-reference validation system to reduce manual review time
  • • Authored technical documentation for AI applications using JavaScript, Word, and HTML/CSS
  • •Gathered business requirements and developed AI solution proposal to automate due diligence workflows, integrating AI Chain platform with SharePoint repository to target significant reduction in manual research time

    • Language Data Evaluator

    Volga Partners LLC
  • •Evaluated and labeled multilingual text/image/video datasets for LLM training using UIIRS platform
    • February 2025 – April 2025Remote
  • •Consistently exceeded hourly judgment targets by 250% while maintaining 85%+ accuracy in multilingual data validation and annotation tasks
  • •Translated HIT App and annotation guidelines between English and Simplified Chinese
  • •Applied systematic quality assurance methodologies for ML training data, analyzed search relevance through structured evaluation criteria (relevance, diversity, technical quality)
  • •Validated content across multiple criteria including language accuracy and cultural context

    • Assistant Strategic Project Manager

    The Hong Kong Jockey Club
  • •Coordinated 2 concurrent BI initiatives using Azure Databricks for ETL processing and Tableau for visualization
    • December 2023 – September 2024Hybrid
  • •Developed project documentation including business requirements and data dictionaries for cross-functional team alignment
  • •Built 3 Tableau dashboards with hierarchical drill-downs and custom SQL extracts, enabling users to gain insights through interactive data exploration
  • •Coordinated with data engineering team to orchestrate ETL workflows in Azure Databricks for scheduled data refresh from 7 different databases, ensuring consistent data availability for Tableau dashboards
  • •Integrated recommendation system results from Azure Databricks into Tableau dashboards using calculated fields and parameters, displaying customer preference scores to drive personalized promotional offers

    • Senior Business and Data Analyst

    Chow Sang Sang Holdings International Limited
  • •Maintained and optimized 3 QlikView master documents (POS, sales, and product) supporting over 30 downstream dashboards through proactive monitoring and troubleshooting
    • March 2023 – April 2023Hong Kong SAR
  • •Resolved QlikView issues including data load failures, user access permissions, and expression errors
  • •Scheduled and monitored NPrinting report distribution of 100+ automated reports to 200+ stakeholders in Excel and email formats
  • •Analyzed sales data with Python to uncover $3M in revenue opportunities, then developed QlikSense proof-of-concept dashboard to demonstrate insights
  • •Administered BI documentation, security access controls, and project backlog while maintaining training materials

    • Business Analyst

    Yick Chiao Development Company Limited

    • Created business requirements documents for data migration project, documenting source-to-target mappings for migrating local Excel files to MS SQL Server

    November 2019 – August 2022Hong Kong SAR

    • Gathered and documented dashboard requirements from executive users, defining chart types, data filters, and layout specifications for development

    • Developed executive dashboards providing actionable insights to support data-driven decision making

    • Conducted stakeholder interviews and process mapping analysis to identify communication barriers across departments, implementing standardized protocols that improved cross-functional collaboration

    • Partnered with cross-functional teams to establish KPIs for performance monitoring across project and operational metrics

    • Built standardized daily, weekly, and quarterly report templates using Excel and SSRS for systematic KPI tracking

    Strategy Analyst

    Tink Labs Limited
  • •Devised and implemented market expansion strategy, driving 20% growth in the Scandinavian market
    • July 2017 – July 2018Hong Kong SAR
  • •Streamlined the onboarding process by revising training materials and process documentation
  • •Maintained CRM backlog to ensure efficiency, effective communication, and user satisfaction
  • •Evaluated and visualized sales performance metrics using Excel and PowerPoint
    • Education

    Postgraduate Diploma in Hospitality Management

    Hotel Institute Montreux
    2016 – 2017Montreux, Switzerland

    MA (Hons) in Philosophy

    University of St Andrews
    2012 – 2016St Andrews, United Kingdom
    Key Certifications

    Machine Learning in Production

    DeepLearning.AI

    Completed with 100% grade, covering ML lifecycle, deployment patterns, and production optimization.

    2025

    Remote Work Professional Certification - RWPC™

    Certiprof

    Certified in global remote work practices, virtual collaboration, and distributed team management.

    2024

    IBM Machine Learning Professional Certificate

    Coursera

    Completed with 96.95% average grade on Deep Learning, Supervised & Unsupervised ML.

    2024

    Google Business Intelligence Professional Certification

    Coursera

    Completed with 92.72% average grade on Data Modeling, ETL Pipelines, and Business Analytics.

    2023

    Google Data Analytics Professional Certificate

    Coursera

    Completed with 100% grade on Data Analysis, Visualization, R Programming, and Capstone Project.

    2022
    Technical Skills
    Machine Learning & AI

    Scikit-learn, TensorFlow, PyTorch, Natural Language Processing, Deep Learning, Classification, Regression, Clustering, MLflow, Model Deployment

    Frontend Development

    React, JavaScript, HTML/CSS

    Business Analytics

    BRD, FRD, Data Mapping Specifications, Stakeholder Interviews, Requirements Elicitation, User Acceptance Testing (UAT), Data Quality Assessment, Gap Analysis, Workflow Optimization, Process Mapping

    Data Analysis & BI

    Python (NumPy, Pandas, Matplotlib, Seaborn), SQL (ANSI SQL, T-SQL), Excel (VBA, Power Query, DAX), Tableau, QlikView/QlikSense

    Project Management

    JIRA, ClickUp, Confluence, Agile, Waterfall, Kanban, Scrum, Critical Path Method, Technical Writing, Microsoft Teams, SharePoint, spreadsheets

    Data Engineering & Cloud

    PySpark, Alteryx, Azure Databricks, Google Cloud Platform, REST APIs, FastAPI

    Languages
    English, Cantonese, Mandarin

    Native

    Spanish

    Conversational