Data Science Engineer

Chia-Jung (Carol) Chang

+1-412-***-**** ************@*****.*** www.linkedin.com/in/chiajung-chang EXPERIENCE IBM, Data Science Engineer 07/2020 – Present

- Define and build the data pipelines that will enable faster and better decision-making within the business

- Develop applications on Big Data and Cognitive technologies

- Manage, clean and transform data sets from disparate sources for analytic use

- Create reports including data insights and visualization Infosec Decompress Podcast, Producer https://infosecdecompress.com 04/2020 – Present

- First Information Security Focused Mandarin podcast

- Innovate on ways to grow audience and help increase security awareness

- Create content on website and manage social media

- Research topics and book guests for episodes and interviews Compal Electronics, System Engineer, Server Team 03/2016 – 04/2017

- Utilized Allegro to modify and review PCB layouts according to hardware specification

- Performed 600+ component calculations per day for new conceptual circuits

- Defined product requirements, identified best concepts and designs in weekly planning meetings

- Collaborated with external engineers to implement corrective actions and improvements Gamania Digital Entertainment, QA Tester 09/2011 – 07/2015

- Implemented regression and exploratory testing to identify software defects

- Tested new mobile games for bugs pre-production as a final testing phase

- Prepared project reports and documentation for tracking and evaluation

- Worked closely with the development team to clarify requirements and software specification COMPUTER

SKILLS

Industry Knowledge

Programming Languages

Database Management

Techniques and Tools

Data Analysis, Machine Learning, Database Management Python, SQL, Java, JavaScript, MATLAB, HTML5, CSS, PHP, C/C++, C# MySQL, MongoDB, MS Access, Neo4j, Snowflake

Jupyter, MS excel, PowerBI, Tableau, Node.JS, Unity3D, SPSS, Arduino, AWS EDUCATION University of Pittsburgh, Master of Science in Information Science, GPA 3.78/4.0

- Relevant Coursework: Machine Learning, Database Management, Cloud Computing Information Storage and Retrieval, Neural Networks Fu Jen Catholic University, Non-degree in Department of Computer Science Tatung University, Bachelor’s degree in Electrical Engineering 09/2017 – 05/2019

09/2014 – 01/2016

09/2011 – 06/2015

ACADEMIC

PROJECT

PittServes Database Project 01/2019 –04/2019

(MS Excel, SQL, MS Access)

- Cleaned and organized data with 100+ community partners, 3500 participants and 150 staffs

- Successfully improved efficiency by creating forms for Pitt Make a Difference Day program Machine Learning - Google Play Store Data Analysis 09/2018 – 12/2018

(Python- Pandas, Scikit-learn, Numpy, Matplotlib, Jupyter Notebook)

- Used Python to clean and process data with 10000+ data collected from Kaggle

- Applied regularization to avoid overfitting the training data in case the observations are not enough

- Applied classification models and evaluated results with accuracy and F-measure

- Solved unbalanced data by parsing into groups and improved accuracy by 70% Meetup OLAP System 01/2018 – 04/2018

(MySQL, MongoDB, Neo4j, Node.JS, HTML)

- Developed a website for analyzing relationships between events and members

- Normalized data and designed database with MySQL, Mongo DB and Neo4j

- Used Node.JS for database connection, and developed a website with HTML

- Compared results and advantages between each database LEADERSHIP Vice President of International Student Organization in University of Pittsburgh Event General of Guitar Club in Tatung University

09/2017 – 05/2019

2011 – 2014

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