Mark Hahn

Objective

SWE, SE, Researcher, Trilingual and Thinker based in Tokyo | ex-CircleCI, Mercari.

Master of Engineering (Transdisciplinary Science and Engineering)

Bachelor of Science in Computer Science and Engineering

Lead improvement of CI/CD design and processes with various companies based in APAC
Support the technical implementation and day-to-day management of CircleCI Demonstrations and Trials, integrating our customers chosen technology stack
Ensuring early customer success and a long-term business relationship
Demonstrate and prove the technical feasibility of the CircleCI platform to highly technical audiences
Build and launch new sales products and customer integrations to our internal teams and customer community
Partner closely with our customer success teams to craft an outstanding customer experience for life
Close the product feedback loop through our collaboration with Product and Engineering teams to help build product roadmaps based on market/customer requirements
2023/02: Application Strategy Summit NSW 2023 / CircleCI Exhibitor: introduce CircleCI as a CI/CD solution for various organisations such as government offices, enterprises, and tech companies.
2022/10: TECH WEEK SINGAPORE (Cloud Expo ASIA) / CircleCI Exhibitor: consulted and engaged in technical discussions with visitors who aim to improve their DevOps practices and software development lifecycles with better CI/CD strategies and automation.
2022/10: CircleCI's First Webinar for South Korea / Lead a technical webinar for the Korean market, got one of the most registrations and participants.

designed, led and developed new projects into approx. 8M daily active user service
migrated PHP monolithic API to Microservices with Golang and gRPC/Protobuf
developed new microservices and managed to release to production
shared knowledge internally/externally by attending tech conferences (GopherCon, gRPC Conf)
created and conducted new software engineering training programme
wrote and published several articles to company’s official blog, Mercan
led a diversity community team and conducted several internal/external projects
utilised Docker containers for development and deployment
wrote automation tasks for continuous integration and continuous deployment
learnt documenting code, version control using Git
followed an agile development process including test-driven development, pair programming, and continuous releases
wrote tests for the backend microservices

developed a web service frontend using React.js and Relay
developed a web service backend using Phoenix (a Rails-like web framework written Elixir) and GraphQL
wrote tests for the frontend and backend
employed tools such as Pivotal Tracker, Slack, Github, and CircleCI

ACM SIGCHI Communication Ambassador
Master’s thesis Final Presentation GEDES Course Outstanding Presentation Award
Science Communication for Global Talents, Oversea Programme with Science Museum, London, UK
Teaching Assistant for Introduction to Society and Technology; Social Design Project; Software in the Future Society
Several Tuition Scholarships; Japan Student Services Organization Scholarship
the First Prize for graduation project by Dept. of Comp. Sci. and Eng.; Achievements, Excellence and the President’s Special Awards for undergraduate UAV (Unmanned Aerial Vehicle) project; paper published; patent registered;