Development • Directed the migration and revitalization of the official website, resulting in a 2x improvement in web performance, and integrated an automated monitoring process for tracking performance. •. Enhanced the existing product's logging solution to ensure comprehensive monitoring of visitors' journeys. •. Architected an email service that encompasses the live conversion of MJML to Handlebars and the integration of i18n content. •. Architected a Tracker service to establish a pipeline for user behavior data, enhancing data processing capabilities, module reusability, parameter traceability, and ultimately achieving observability of user behavior data. •. Directed the development and implementation of a frontend testing framework and processes from scratch, establishing a seamless TDD and BDD workflow. Integrated project management platforms for effective user stories management. •. Designed the process to collect metrics for A/B testing experiments and built Grafana dashboards to monitor cross-data-source metrics.Leadership •. Designed and led A/B testing experiments in the Growth Team to increase conversion at multiple steps in the user journey.Business •. Successfully established connections with a couple of potential partners at a business development event.

- Led the architecture design, development, and containerization of the Project Management Information System (PMIS) product, Projecthub, composed of four cloud collaborative microservices supporting data versioning.- Utilized Single-SPA and AngularJS to integrate and consolidate various services through micro-frontend, effectively minimizing the need for redundant redevelopment and streamlining the overall development process.- Developed and executed a cutting-edge ambulance monitoring solution that offers instantaneous route tracking utilizing Mapbox and IPCam streaming technology.- Took the initiative to spearhead the process of refactoring an existing project to enhance both the development experience and user satisfaction.- Enhanced team performance and collaboration by optimizing the interview process and implementing regular knowledge-sharing sessions weekly.- Technologies used: React.js, Vue.js, NestJS, MinIO, TypeScript, MongoDB, MySQL, Docker, MaterialUI, Antd, Webix

Summary:-Successfully raised 2,000,000 NTD in 8 months.-Project management, budget control and client negotiations.-SaaS services development: 1. Rainfall detection portal (https://www.randy-liu.com/project/9)- Handled and visualized over 10k historical rainfall data.2. GIS visualization portal for NTU campus(https://www.randy-liu.com/project/10)- Integrated ArcGIS and visualized data.3. One-stop online event platform (Asiania)(https://asiania.me)(https://www.randy-liu.com/project/17)- Developed an interactive and flexible WYSIWYG scene editor for hosting an online event/meeting or watch party. VOD players, meetings, rich texts, images, embedded websites, Q&A, chatroom are included.- Developed the event editor including tickets, sponsors, allowed regions management.- Integrated stripe/OEN/Tappay checkout.4. NFT e-commerce platform (OneOffs) (https://oneoffs.art/)(https://www.randy-liu.com/project/16)- Project management, feasibility assessment, and development.- Integrate Vendure (e-commerce framework) and customized admin dashboard.- Integrated Tappay checkout.- Cooperated with Lootex.

- Managed a project which focuses on a most convenient collaboration system, “BIM-AR”, for Structure Health Monitoring (SHM) of maglevs with National Rail Transit Electrification and Automation Engineering Technology Research Centre (Hong Kong Branch). - Developed a Forge collaboration platform and AR app to provide Structure Health Monitoring of constructions and sensor localization. - Assisted SmarTone to exchange physical data of on-site workers and the results of the ANN model with developing RESTFUL API.- Validated an algorithm that aims to help workers adjust the rebar positions through AR devices by transform between as-built rebars and as-design rebars.

AR inspection App on the iOS platform: QC reports QC reports for on-site inspections.

Implemented the training program of Revit API Programming and taught Microsoft SQL Server in the course, "Database and Practical BIM Application".

Taught the students BIM technology and Revit modeling in the course, "BIM".

2nd prize with 500,000NTD in 2018 Taipei New Horizon Art Festival:- HCI mechanism Development for better customer engagement- Analyzed the scaffoldings strucutre for exhibitionsLink: https://youtu.be/iQUWsvz-RFQ

Designed parts of a high school and pathways of a nuclear power plant in China.

Intern of Geotechnical Engineering Department.Assisted in the soil liquefaction data preprocessing and tunnel BIM project research.

Assisted with brand positioning.

Assisted construction manager with supervising the construction site safety and correcting design error.