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I'm a software developer based in Toronto, Canada specializing in full-stack development
About Me
Hey, my name is William San! I am a recent graduate from the University of Toronto specializing in Computer Science.
I love developing and designing software for the web, from simple landing pages to progressive web applications! My main area of interest is full stack development and I have experience working with a large variety of technologies and frameworks. I am always excited to learn more, take on new projects and create software that provides the best user experience.
I am currently working as a Software Engineer at Meta on the Core Health Data Infrastructure Team. Previously, I worked at Scotiabank as a Cloud Data Engineer, developing a Data Provisioning and Access Management app. In my previous software engineer internships at Meta, Apollo GraphQL and Bayer, I created tools for Facebook Business Growth, developed a commercial SaaS for modern application development and built digital interfaces for Radiologists.
Technical Skills
Javascript/Typescript (React, Express, Node, Redux, jQuery)Proficient
JavaProficient
PythonProficient
Databases (BigQuery, PostgreSQL, MongoDB)Proficient
GraphQLProficient
HTML/CSSProficient
Version Control (Git, Mercurial)Proficient
CFamiliar
Machine LearningFamiliar
Work Experience
Software Engineer
Meta
Feb 2024 - Present
- Building scalable infrastructure solutions to improve developer experience, including full-stack tools to drive the success of multiple product teams, including Facebook, Instagram, WhatsApp, Messenger and Ads Manager
- Improving the performance, reliability and efficiency of some of the world's most popular applications
- Collaborate with various product teams to understand customer pain points and work on developing roadmaps and projects to enhance their experience
- Implementing innovative techniques to boost efficiency and the quality of performance signals
Cloud Data Engineer
Scotiabank
Apr 2023 - Feb 2024
- Developed Data Provisioning and Access Management app for the bank’s data platform to streamline the data access process using Google Cloud Platform, Appsheet and BigQuery
- Restructured data models and optimized performance to improve runtime of app
- Designed and implemented column-level access control to mask sensitive data and restrict access to different user personas using Python in Google Cloud Functions and Terraform
Software Engineer Intern
Meta
Sep 2022 - Dec 2022
- Designed and built full-stack internal tool to automate the pipeline for migrating millions of Facebook pages to the latest product, Profile+
- Enabled users to visualize, set up, plan and monitor the current and future migration process, reduced eng cost by deprecating need for manually managed spreadsheets
- Created an algorithm to generate an optimal schedule based on priority of migrations and resources available
- Developed internal tool for scaling and automating company-wide initiative to reduce privacy risks using JavaScript, Hack/PHP, React, Relay and GraphQL
- Implemented functionality to automatically generate and share reports for completion rates of privacy tasks
- Advanced the backend validation checking of configuration files
Software Engineer Intern
Apollo GraphQL
Jan 2022 - Aug 2022
- Designed and developed new capabilities for a commercial SaaS for modern graph-based application development with the developer tooling team
- Implemented end-to-end authentication flow for embedding private graphs on any website using TypeScript, React, Node, Tailwind and GraphQL
- Advanced the front-end infrastructure to improve stability and performance while helping guarantee the highest uptimes for some of the largest companies
- Created a testing suite to catch errors with end-to-end user flows using Cypress
Software Developer Intern
Bayer
May 2020 - Aug 2021
- Developed full-stack informatics platform that managed and rendered radiation dose of medical imaging devices at hospitals
- Implemented RESTful APIs in various microservices using Java, Spring and PostgreSQL, enabling users to visualize, manipulate and process radiation dose analytics
- Created interactive charts and interfaces with TypeScript, React and Sass, making the web app more responsive and easier to navigate
- Built Python and SQL scripts to efficiently migrate data, replace Docker containers and upgrade the application to newer releases
- Responsible for implementing UI enhancements, customer-facing components, fixing bugs and database schemas and database upgrades
- Communicating and collaborating with teams of engineers, product managers, QA developers and clients on a daily basis
- Writing confluence pages, participating in peer code reviews, preparing reports and other documentation
Teaching Assistant
University of Toronto
Sep 2021 - Apr 2022 | Sep 2019 - Apr 2020
- TA for CSC373 Algorithm Design, Analysis & Complexity and MAT135 Differential Calculus at the University of Toronto Mississauga
- Taught algorithms, design techniques, analysis of abstract data structures and complexity
- Led office hours and weekly tutorials for 4 sections
- Created lesson plans and provided one-on-one mentoring for students
- Graded assessments and answered questions on class forums for 1500+ students
Featured projects
Book Recommender
Book Recommender takes as input your favourite book, and outputs books of similar themes, ratings, and styles. Winner of Best UI/UX Hack @ PennApps XXIIFlaskPythonReactSCSS
Nox
Nox is a communication platform for professors to get real-time feedback from students while they teachMongoDBExpressReactNode
Lofi Radio Bot
A customizable Discord bot for playing high-quality music and moderating serversJavaJava Discord APILavaPlayer
Website
My personal website/portfolio deployed using GithubReactReact-BootstrapReact-Router
