Jadon Fan

My name is Jadon Fan. I graduated with a BASc in Computer Engineering at the University of Waterloo in June 2022. I was part of the University's co-op program, which meant that I alternated between study terms and work terms every 4 months. I hope you enjoy exploring my website, which I am using to gain further experience in web development.

I would describe myself as a determined person who loves to employ his problem solving skills. When I face a problem, I will put in as much effort as I can (eating and sleeping are still important!), and use whatever relevant tools I have at my disposal, to find a solution to that problem. That said, my mantra is thatwhile it is important to work hard, working smart is more efficient and effective. Meanwhile, my friends would probably describe me as a helpful person whenever it is help with academic work or just life in general. Helping people not only enables me to put my knowledge and skills to good use, but also provides a great learning opportunity for myself. For example, if I make a mistake when I help others, I become aware that I might make that same mistake in the future and will try to find why I made that mistake and how I can potentially avoid it.

I used to play chess semi-competitively in high school. However, I stopped playing for a while once I got to university, but I now play it again but this time only casually against bots and in puzzles on chess.com. I don't really have a favorite opening but I usually play the Ruy Lopez or Scotch opening, some variation of the four knights opening (classic beginner's opening) or if I'm playing black, the sicilian defense. I would count myself as a pretty aggressive player albeit a slow one.

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JavaScript

TypeScript

React

Redux

RTK Query

Axios

Apollo

Jest

React Testing Library

Wish

Implemented various Android (Kotlin) and server-side (Python) features for the Wish Clips MVP, and worked with PMs and data scientists to collect user metrics and iterate on the features following the launch of the MVP

Utilized Apache Airflow and Apache Hive to automate the compilation of daily user reports into HTML emails for the content moderation team

Wrote and reviewed design documents for migration of legacy code to an MVI architecture with Jetpack components

Kotlin

Java

Android

Python

Tornado

MongoDB

Wish

Implemented various features — such as checkout offer extensions for eligible users, VAT information, and product bundles — on the Wish app that would convince users to complete their purchases quicker with more items in their cart

Monitored the impact of my features through A/B tests and through impression/click logging in Treasure Data

Worked with Kotlin and Java on the front-end, and Python and MongoDB on the back-end

Contributed on my own initiative to the success of other people on the team through extensive code reviews, knowledge transfer sessions with a new hire, numerous contributions to the engineering wiki, and improvements to our custom Android linter

Kotlin

Java

Android

Python

Tornado

MongoDB

FundThrough

Utilized React and Redux to enhance an online invoice funding platform so that it is more personalized for each user based on their needs and financial history

Implemented the corresponding Jest/Enzyme tests on the front end

Implemented various APIs and Rake tasks in Ruby on Rails along with the corresponding RSpec tests

Launched a new funding flow along with the relevant logging events to make the funding process more smooth between clients and the customer success team

Created custom search filters from scratch on the admin panel so that the CS team can find past invoices quickly and conveniently

Created OpenAPI definitions for the REST APIs, and uploaded and tested them on Amazon API Gateway

React

Redux

Ruby on Rails

Rake

PostgreSQL

AWS

YuJa

Implemented features – including a media file downloader for offline playback, background playback service, various media settings, and video and audio recording capabilities – for an Android (Java) app in a MVVM pattern

Utilized various Material Design components to standardize the user interface across the app

Implemented RPCs for the app using Java Servlets, JDBC and Amazon S3

Increased app rating by 0.7 stars, decreased average render time by 6% and decreased crash frequency by 4% based on metrics from the Firebase console

Migrated many of the old or deprecated libraries to newer libraries such as from SQLite to Room

Java

Android

TELUS Health

Wrote automated RMI and REST API tests in Java for a medical software

Configured tests in JMeter and Jenkins with test data in PostgreSQL

Increased test coverage by 40% and identified 35 performance issues

Refactored major parts of the codebase in order to maintain structural consistency

Worked with the engineering team to determine the source of some identified issues

Java

PostgreSQL

JMeter

Jenkins

Automated Interview Feedback System

React

Redux

RTK Query

Python

Flask

gRPC

OpenCV

PostgreSQL

Source Code App

Crowd-Sourced Fact Checker

We used TypeScript and React on the front-end and Django on the back-end, with Apollo as the client for our custom GraphQL queries and mutations. We also explored other various aspects of web development, such as internationalization, accessibility (WCAG 2.1) and search engine optimizations (SEO).

React

Redux

Apollo

Python

Django

Graphene

PostgreSQL

Source Code App

Android Budget Tracker

I developed a Material-themed Android app with modern Jetpack libraries, dependency injection and Airbnb's Mavericks framework. With the app, you can keep track of your individual transactions either by manually filling out the details of each transaction or by using the custom barcode scanner. Then, at the end of every week, you can obtain a summary of how much you've spent relative to your budget for that week.

Kotlin

Android

Mavericks

Source Code

NYTimes Bestsellers Aggregator

For all of you bookworms out there, this website gives you a neat feed with the details of the latest NYTimes bestsellers in each category. This simple yet useful website was my first and rather successful attempt at utilizing the Ruby on Rails framework on the back-end.

React

Redux

Ruby

Ruby on Rails

Source Code

Student Life Planner

This desktop Java app is designed by students, for students, to plan your university life, such as your courses for the next academic term and your daily schedule. Your university life may get busy but it shouldn't need to be difficult to manage.

JavaFX

JDBC

MySQL

AWS

Source Code

Family-Friendly Casual Mobile Games

This Android app may seem basic, but it helped me a lot with getting started in Android development.

Java

Android

Source Code

3.93

Cumulative GPA

Internships

Honours

TODO

ECE457B Fundamentals of Computational Intelligence

ECE495 Autonomous Vehicles

TODO

ECE454 Distributed Computing

ECE458 Computer Security

ECE493 Reinforcement Learning and Probabilistic Reasoning

TODO

ECE350 Real-time Operating Systems

This course covered the fundamentals of operating systems, particularly real-time as you can guess from the course title. There was a lot of content to take in, such as memory allocation and management, multi-threading and multi-processing, caching and I/O, but no memorization was required as the assessments were open-book. Each lab involved the creation of a particular aspect of an operating system written in the C language that would run on the ARM-based Keil MCB1700 microprocessor.

ECE356 Database Systems

This course covered the fundamentals of databases including ER modelling, SQL queries, relational algebra, transactions, basic data warehousing and mining, concurrency and recovery. There were four labs done in MySQL, with the first one completed individually and the other three completed in groups of three. The final lab combined our knowledge of MySQL as well as some basic SciKit-learn APIs to predict whether a particular baseball player would be in the MLB Baseball Hall-of-Fame given their play stats. Overall, the breadth of knowledge covered was great, but the depth was lacking.

ECE358 Computer Networks

This course covered the fundamentals of computer networks, particularly of each layer in the OSI model other than the application and physical layers. For the longest time, I have been working as a software developer writing APIs on the back-end and calling them on the front-end but I didn't have a complete grasp of how these APIs were sent over computer networks. This course gave me that valuable knowledge, and I would be lying if I said that I didn't enjoy the content!

TODO

ECE306 Probability Theory and Statistics

ECE327 Digital Systems Engineering

ECE351 Compilers

This course covered the fundamentals of compiler design and implementation. It started off with a recap of finite automata and grammar from ECE208 (discrete mathematics and logic). Then, we learnt how to apply those abstract knowledge to create and optimize various aspects of a compiler, including recursive descent parsing, compile-time optimizations, register allocation and garbage collection. Through the labs, I slowly but gradually applied my newfound knowledge of compilers to build a simple yet capable compiler in Java to convert Java code to a subset of the VHDL language to, finally, Assembly. Oh, and I was one (1!) percentage point away from achieving a perfect grade.

ECE380 Analog Control Systems

Time flies by quickly. After the next co-op term, I'll be half way through the ECE program. I still have no regret about choosing ECE as both my hardware and software courses so far have been exciting and interesting. With most of the foundational courses cleared up, I do expect that the courses from here on out will be more practical, so I will be able to better see how what I have learnt so far can be applied to real-life situations. As for the 2B term itself, the content was not particularly difficult. The labs were time-consuming, so the lab rooms in the Engineering buildings felt like a second home to me, especially on weekend afternoons!

ECE208 Discrete Mathematics and Logic 2

ECE224 Embedded Microprocessor Systems

ECE252 Systems Programming and Concurrency

It appears that I survived the infamous 2A ECE term. With 6 courses, I essentially spent half of my day every weekday of the week on campus in a lecture, tutorial or lab... and that's on top of completing assignments, working on side projects, and preparing for co-op interviews. All in all, relaxation was mostly a weekend thing. Unfortunately, I only realized the great extent of my procrastination after midterm week, which saw my marks dip significantly from first year. Thankfully, I eventually caught up with the content after the midterm after promising myself to not leave the problem sets until final exam period. As a result, the final exams were able to save my grades.

ECE205 Advanced Calculus I

ECE222 Digital Computers

ECE250 Algorithms and Data Structures

The previous study term was more of a general engineering term. On the other hand, with mathematics (both discrete and continuous), circuits, digital logic and E&M courses all bundled into 1B, this term has clearly established itself as a more ECE-specific foundational term. I have so many opinions regarding each course, but I doubt anyone would want to hear my rants, so I'm going to summarize my opinions. I put in the most effort into circuits and felt it was easy after doing so many problem sets. This effort paid off as I scored 100% in that course. Meanwhile, digital logic was difficult even after completing the problem sets since it required covered tons of content so quickly and a lot more memorization and out-of-the-box critical thinking. However, the course made me approach problems with a more "hardware" mindset; for example, breaking down problems into state machines, with the consideration of transitions and assignments across various clock cycles. The difficulty of all of the other courses would somewhere between the two aforementioned courses, but they were about equally as useful to me.

TODO

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