Che-Jui (Jerry) Yang Email & Phone Number

London, GB

London, England, United Kingdom

• Passenger Assistance Staff App (B2B) for Rail Delivery Group
• Spearheaded feature development and maintenance of Android app in Kotlin, supporting 188,000+ registered users across 10+ UK train operating companies, facilitating nearly 5,000 daily assistance requests with 87% user.
• Refactored app architecture from MVP to MVVM using ViewModel, LiveData, and Flows, improving scalability and state management. Optimised navigation flows, modernised UI with Jetpack Compose, enhanced network layers.
• Monitored Firebase Crashlytics across various environments, promptly identifying and resolving critical issues
• Developed a cross-platform version of the native app using Kotlin Multiplatform Mobile (KMM) with iOS developersPassenger Assistance App (B2C) - in partnership with National Rail
• Developed and maintained a consumer-facing Kotlin-based Android app with a 4.8/5 rating on Google Play and 50k+ downloads, supporting 4 app themes, passenger profile, journey assistance bookings, and TalkBack.

Taipei, Taiwan

• Built 5 BI dashboards with analytics tools such as Redash, Metabase, and Superset, leveraging SQL, Python, and API integrations to create interactive stock data visualisations presented to 2 clients weekly
• Containerised services using Docker to deploy large-scale data across 3 self-hosted Ubuntu servers, managing tens of thousands of data and ensuring consistency, while improving resource utilisation and deployment.
• Authored 14 BI articles for a tech blog with stock data analysis utilising Nginx, Docker, Kubernetes, and Ubuntu server with WordPress templates, showcasing stock data insights and visualisation techniques
• Collaborated with senior frontend developers to build and maintain the company's website using JavaScript Vue.js framework, ensuring seamless data integration and presentation of JSON-based stock data on the website

Taipei, Taiwan

• Implemented an interactive Java-based Android banking application featuring over 10+ innovative functionalities, which was officially adopted by the company's head and used as a reference for the final production app
• Conducted beta UI and Unit testing for the mobile banking app with two financial departments, actively engaging potential clients via cold calls and delivering weekly reports on app performance and client feedback
• Conceptualized and proposed 3-5 new mobile app features weekly to the product manager, driving continuous enhancements in the company’s mobile application strategy and elevating user experience

Nottingham, England, United Kingdom

• Collaborated with project managers to deliver customer-focused solutions, gathering feedback to refine features and user experience.
• Developed a frontend web system using JavaScript and React, focusing on a clean, intuitive design with labeled icons, organized layouts, and interactive elements.
• Built a voice-recognition ordering system to automate product ordering for the sales team, significantly enhancing workflow efficiency and reducing manual effort.

Nottingham, United Kingdom

https://www.aiesec.co.uk/

Coventry, England, United Kingdom

• Maintained conference operation where over 350 delegates from 18 different local communities were engaged
• Organised and scheduled technical setup, problem-shooting for over 30 leadership sessions
• Conducted technical support for National AIESEC President Election with 40 more presidents from 10 different countries

Msc, Computer Science, 82.5 / 100

Bachelor, Computer Science