Overview
Work History
Education
Skills
Previous Projects
Timeline
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Oscar, Tse Man Chun

Portfolio:oscartse.github.io

Overview

4
4
years of professional experience

Work History

Data Science Assistant Manager

Visa Consulting & Analytics, Visa Inc.
06.2021 - Current
  • In the team of Visa Consulting and Analytics (VCA), building end-to-end data solutions to client on card lifecycle management for issuers & Acquirers; strategic consultation for merchants. Responsible for 28% revenue target of the team, key accounts including DBS, CCBA, FUBON, Global Payments, Swire, DROO, etc.
  • Contributes to machine learning algorithms from CoE team: merchant matching, Persona analysis etc. Implementing localized customization for client needs.
  • Worked in Hong Kong crypto workstream, introduced crypto knowledge and latest development in local market for Hong Kong General Manager.

Data Engineer, Analyst Level

Accenture
06.2020 - 05.2021
  • Handled client's ETL Pipeline and orchestration from different datasource connections to ensure secure transformation on Azure Cloud Platform. Reduced Client data platform data abnormality by 90%, optimized query runtime by 20%.
  • Applied DevOps on pipeline construction with testing and deploying on SIT, UAD, Prod environment, setting IAM, RBAC, ACL simultaneously.
  • Designed sustainable data pipelines using various Azure tech stack, e.g. Data Factory, SynapseDB, SQL DB, Blob storage, DataBricks, Delta Lake, ADLS Gen2.
  • Piloted end-to-end public data project with semi-real-time weather, traffic and events data from data mining, ETL, to visualizations on OpenAPI and Government website data.

Data Analyst, Supply Analytics

Klook Travel
09.2019 - 06.2020
  • Completed end-to-end data science procedures to solve business questions (from Data mining, ETL, Modelling, Visualization, to Reporting).
  • Specialized in Competitor Analytics (Pricing, Acquisition, Content). Enhanced Supply side take rate by 20% and price adjustment process by 90%, turning it into 99% data-driven decision.
  • Built customizable, reusable dashboards for business users on Tableau to investigate dimensions/metrics to drill into business insights. Users reduced 80% time on creating monthly reports.

Education

Bachelor Of Engineering - Information Engineering

The Chinese University of Hong Kong
Hong Kong
2019

1st Asia Undergraduate Summit - Representative of CUHK, 2017 And 2018

National University of Singapore
Singapore
07.2018

2nd Asia Undergraduate Summit - Representative of CUHK, 2018

Hindu College, University of Delhi
India
07.2018

Skills

  • Fluent, well written in Cantonese, English, Mandarin
  • Experienced in Python, R, C#
  • Experienced in Azure Data Factory, Databricks, DevOps
  • Experienced in Machine Learning Libraries: Keras, Sklearn
  • Experienced in Visualization Libraries: Dash, Plotly
  • Experienced in Microsoft Word, PowerPoint, Excel
  • Experienced in Tableau Desktop, Prep, Server and PowerBI
  • Experienced in GCP CE, Cloud SQL, BigQuery, Dataproc
  • Experienced in Data Scrapping/Automation Libraries: Scrapy, BeautifulSoap, Selenium

Previous Projects

Final Year Project - Machine Learning in Foreign Exchange

  • Applied recurrent neural networks (LSTM), AutoEncoders in FX market prediction (Focusing on EUR/USD, GBP/USD, JPY/USD), optimized model performance by Genetic Algorithm.
  • Investigated pairs trading and correlation analysis on different currency pairs, back test 4 years data to proof beating fundamental strategies like SMA cross, BBand Strategy etc.

Timeline

Data Science Assistant Manager

Visa Consulting & Analytics, Visa Inc.
06.2021 - Current

Data Engineer, Analyst Level

Accenture
06.2020 - 05.2021

Data Analyst, Supply Analytics

Klook Travel
09.2019 - 06.2020

Bachelor Of Engineering - Information Engineering

The Chinese University of Hong Kong

1st Asia Undergraduate Summit - Representative of CUHK, 2017 And 2018

National University of Singapore

2nd Asia Undergraduate Summit - Representative of CUHK, 2018

Hindu College, University of Delhi

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Oscar, Tse Man Chun