Jianshu Wang
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About Me
Hi, this is Jianshu Wang, currently a Master's student in Washington University in St. Louis as an international student learning Cybersecurity Engineering.
I love computers, and improving user experience has been my main driving power for many of my projects. I am always willing to learn new technologies based on the project I have on my hand, and previously I've worked on projects in many diverse fields, including websites, Windows GUI, chatbots and localizations. I am also enthusiastic about open source.
Actively looking for a job in relevent fields.
Work Experiences
- Integration of cutting-edge technology to enhance the student and broader campus experience.
- Carried out testing against WashU ChatGPT using Python scripts and provided feedbacks.
- Worked with clients to develop React websites and mobile apps.
- Developed a React Native mobile app for WashU internal customer.
- Developed a Chrome browser extension for ServiceNow label printing on a DYMO printer.
An organization in partnership with @Akegarasu and @Shigma to provide reliable technical support and solutions for Stable Diffusion user community in China.
- Created the Launcher of Stable Diffusion WebUI in C# WPF for more than 2 million non-professional users.
- Assembled a localization team for Stable Diffusion WebUI and published it on GitHub in an automated fashion.
- Created a Danbooru-like Prompt Builder in Vue.js and Element Plus for Stable Diffusion users.
- Provide technical support for teachers across the campus.
- Help the NIO office to organize network security related events.
- Developed and maintained tools that serves 200k users, including HRMS, Wordpress, Mumble voice, chatbot, MySQL, etc. Implemented OpenID Connect SSO across sites.
- Identified and fixed the bottleneck of a Laravel Horizon Queue in the HRMS site and scaled by 100 times its designed capacity without significant cost increase.
- Increase collaboration between teams by regularly writing wiki documentations and involving in Jira tickets.
- Provided technical support for 75k+ active players, including Chinese and English speakers.
Provide a better experience to Chinese users on Telegram Messengers by connecting islands and filling in gaps.
- Developed an NAPI-based Node.js binding for TDLib, which significantly increases the stability and performance of chatbots.
- Developed a comprehensive chatbot for indexing Telegram groups, self-enrollment and anti-spam.
- Deliver top-quality localization work prior to the localization platform being created.
- Implemented a self-maintained proxy database and a self-service chatbot.
- Created a user community for assistance in using the app.
Education
Projects
A C# & Python based launcher for the Stable Diffusion project designed to connect the non-professionals to latest AI technologies.
- Identified the pain points of new users in using the Stable Diffusion project and renovated user experience.
- Collected common errors and developed a diagnosis system with 105 issues included for self-service.
- The project has 120k DAU and is generating a advertising revenue of 4.5k USD per month.
A Vue.js based DIY tool for Stable Diffusion and NovelAI users. Support generating and analyzing complex prompts.
- Collected tags from various sources and used YAML for easy maintenance.
- Implemented a parser for converting complicated prompts into a structured format.
- Provided a user-friendly interface to edit the prompts and generate the final result.
- Constructed a pure-frontend webapp with Vue.js / Element.js / Typescript.
A timerboard for EVE Online player sovereignty events.
- Designed a Server Sent Event (SSE) based event bus, while messages were sent in unidirectional ways.
- Implemented a difference algorithm, to save network consumption when broadcasting updates.
- Involves modern frontend technologies including Vue.js / Typescript.
A Single Sign-On platform for Minecraft servers, to provide out-of-game authentication experience.
- Implemented an OAuth 2.0 identity provider with Express.js.
- Connected with Flarum discussion board with its API.
- Provided Minecraft in-game authentication with IRC chat forwarding channel.
A Leaflet-based map browser for JourneyMap tiles.
- Implemented cache-friendly tile delivery, that saves origin server bandwidth.
- Created an interactive collaborated marker editor, connected with the Single Sign-On platform.
- Used nearest neighbor interpolation algorithm, to preserve the visual effect of a Minecraft map.
- Implemented a Node.js cross-language binding library for TDLib.
- Analyzed how Telegram Bot API worked and replicated the same functionality with this library.
A NoSQL-based Telegram chatbot which connects prospective users to various groupchats and channels. Node.js and C++ was involved. Served over 500k Chinese users since 2017.
An jQuery Mobile based HTML5 public bicycle tracker, using publicly available data.
Publications
Abstract: Timestamps establish a means to dictate the existence of a message at a particular moment in the past. Traditional digital timestamping service utilizes Public Key Infrastructure (PKI) and thus requires the presence of a Time Stamping Authority, whose job is to ensure the message’s validity. However, with the rise of distributed computing and blockchain technology, it has become possible to obtain timestamps in a decentralized manner, eliminating the need for central authorities. Previous research involves sending transactions or utilizing a smart contract mechanism to store hashes on blockchain and validating the outcome using public ledgers. By prototyping a simple digital timestamping protocol on the Solana blockchain, this article explores the natural advantages of the Solana blockchain for timestamping, implements a smart contract of digital timestamping on the Solana blockchain, and measures its latency, costs, and performance. The initial estimation expects the accuracy of the timestamps produced by the prototype to reach the average sub-second slot time. However, due to network propagation delay, it is not always possible to hit this level. The cost incurred during the process is also analyzed and discussed. Finally, this article highlights the potential ability of the blockchain to provide modern decentralized services.
Awards & Accolades
- 2nd Prize, 2022 IEEE Software Testing Contest (College Students Category), Apr 2022
- 1st Prize, National College Student Software Testing Competition (Individual) in China, Nov 2021