Application Developer

Qi Cai

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PROFESSIONAL EXPERIENCE

Penn Wharton Budget Model Philadelphia, US

Application Developer 10/18 – Present

Main Responsibility:

• Designing, developing and implementation of web applications and operating systems in compliance with requirements in Python, C# and JavaScript

• Developing tools in Python to improve metadata capture and resolve issues in the staging database to ensure the reliability and quality of pipeline data flowing towards production Project: Upload Sheet UI

• Designing Python Flask UI for a data API to ingest data from spreadsheets to SQL database

• Constructing JSON schema using object-oriented programming

• Improving usability by developing auto-checking upload results function in JavaScript and creating functions enabling re-upload options for users

Project: Excel Plugin

• Developing Time Series and Machine Learning models (ARIMA, VARX, Random Forest, SVM) utilizing statsmodel, scikit-learn in Python and designing the corresponding UI classes in C#

• Implementing functions identifying monotone patterns of models’ parameters to reduce runtime by 50%

• Executed full lifecycle (design, build, document, unit & functional test and deploy) of a license API through Flask to generate licenses for the product

Project: Source Change Monitor

• Designed a monitoring system to catch newly released data from 500+ web sources

• Deployed the system on Linux server to update changes on a daily basis

• Applied multithreading to increase the productivity of the system by 60% Guosen Securities Co., Ltd. Qingdao, China

Intern Securities Analyst 6/16 – 8/16

• Performed fundamental analysis, market trends research and financial analysis in technology and energy sectors

• Built financial models for valuation and revenue forecast using Discounted Cash Flow and Comparative Analysis

• Followed up policy changes, analyzed market conditions and developed analysis reports of securities EDUCATION

University of Pennsylvania Philadelphia, US

M.A., Applied Mathematics and Computational Science, GPA: 3.67/4.00 8/16 – 5/18

• Programming Languages and Techniques: object-oriented design of games and systems in Python, Processing and Java, and implementation of Test-Driven Development on codes

• Algebraic Techniques: focused on the numerical aspects of linear algebra, computed QR, SVD and advanced topics in MATLAB

• Data Analytics and Statistical Computing: Conducted data simulation and analysis, including statistical inference

(Bootstrap) in R

King’s College London London, UK

B.Sc., Mathematics with Management and Finance, GPA: 3.96/4.00 9/13 – 7/16

• Ranked #1 in academic achievement, awarded Best Graduating Student Prize, Math with Management and Finance Prize and Florence Hughes Exhibition Prize

SKILLS SUMMARY

• Programming Languages & Systems: Python, C#, Java, Processing, MySQL, JavaScript, Linux, Azure, R, MATLAB

LEADERSHIP EXPERIENCE

KCL Chinese Students and Scholars Association (CSSA) London, UK Secretary 9/14 – 2/16

• Kept records of the society, arranged meetings and set agendas and facilitated internal communications

• Collaborated with other departments in organising activities and developing 20+ new business partnerships

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