Michael Chun Chi Tsang

Professional summary

Transport information specialist with extensive experience in architecting complex, interoperable transport systems. Proven track record of improving industry-wide interoperability (GTFS, OpenTripPlanner) and delivering large-scale integration projects that enhance passenger experience. Expert in bridging the gap between legacy infrastructure and modern digital delivery.

Skills

• Transport technologies: OpenTripPlanner, GTFS
• Programming languages: PHP, Typescript, Javascript, C++, Java, Dart
• Frameworks: Laravel, Symfony, Node.js, Vue.js, Flutter, React.js
• Platforms: Web (including Progressive Web App), Android
• Database: MySQL / MariaDB, T-SQL, MongoDB
• Networking: IPv4 and IPv6 (HE.NET IPv6 Certified Sage), DNS, DHCP, HTTP, FTP, SSH
• DevOps: Git, GitLab, Docker, Linux server administration, UN*X shell scripts
• Languages: English, Cantonese

Work experience

Lead Software Engineer at Aubin MaaS Limited
Aug 2025 – Apr 2026

• Integrated P&R, K&R, vehicle rental and bike on board functionalities into Aubin through OpenTripPlanner, making it a multi-modal traveller information platform.
• Improved OpenTripPlanner routing engine to better handle modern OpenStreetMap mapping and GTFS-RT standard developments.

Full Stack Software Engineer at Jnction
Mar 2023 – Aug 2025

• Architected the transition of Aubin to an OpenTripPlanner backend that integrated rail, bus, and ferry data into a unified system, enabling the customisations required to give autistic users' confidence in travelling.
• Contributed an enhancement to the GTFS-RT standard to specify real-time service addition and diversion.
• Improved the front end of TPR Analysis Tool used by Network Rail, which is used to analyse the problems of the timetable planning rules through analysis of train running data
• Made improvements in TPI Fringe Configuration, which improved the service counts with fully contiguous berth sequences on the LNER network from approximately 20% to 80%

Software Developer at IT Wake Limited (HKU e-learning development laboratory)
Oct 2016 – Oct 2017 / Oct 2018 – Oct 2020

• Developed the backend API for iTrain platform, a corporate training solution used by multiple companies including Chow Tai Fook, Prudential (IIQE YiKaoTong), FSE Engineering, HKFsPA, Bank of China
• Built using Laravel with compatibility on multiple OSes and databases, extending the framework classes to provide customised behaviour
• Made a Docker image and Docker compose script with automated testing with PHPUnit on GitLab
• Served Android and iOS mobile applications, and web frontends using Angular

Products

National Rail timetable on the web
Oct 2022 – Present

• A PHP-based website showing National Rail timetable in HTML form
• Timetable links can be bookmarked directly
• The first website to show train timetables in traditional format using updated journey planner data

Web interfaces for KMB & LW ETA
Jan 2020 – Apr 2021

• Written using Javascript as a single page web application
• User choices in the web application can be bookmarked directly as a URL
• Addressed deficiencies of the bus companies official apps by using reverse-engineered APIs
• Clear separation of UI and logic into a frontend application and a library

Hong Kong TrailO Information Site
Jan 2018 – Present

• A fully bilingual website powered by WordPress, with Chinese and English on equal status.

Education

The University of Hong Kong, BEng(Computer Science) (in conjunction with BBA(IS))
Sep 2015 – Jul 2016

• First class honours
• Graduation GPA 3.68

The University of Hong Kong, BBA(Information Systems)
Sep 2012 – Aug 2015

• Double major in Information Systems and Computer Science
• Second class (upper) honours
• Graduation GPA 3.55
• General secretary of Bridge Club, HKUSU, Session 2013 – 2014
• Member of competitive programming team “Provinci”

Awards and achievements

• English Channel solo swimmer (CS&PF, 2023-09-07)
• Hong Kong Team member in World Trail Orienteering Championships 2017, 2018, 2022
• 2^nd place in Egypt International Trail Orienteering Championship 2018
• Hong Kong delegate in 13^th World Scout Youth Forum (2017)
• Champion in Hong Kong Trail Orienteering Championships 2016 (TempO)
• 1^st runner-up in Hong Kong Trail Orienteering Championships 2016 (PreO)
• Champion in ACM-HK Programming Contest 2015 (team BIG BOSS)
• 3^rd place in ACM/ICPC 2012 Hanoi Asia (team IT Genius)
• Bronze medal in International Olympiad in Informatics 2011 and 2012
• Silver medal in National Olympiad in Informatics 2011
• Gold medal in Hong Kong Olympiad in Informatics 2008 – 2012 (best young contestant in 2008 and 2009)