Backend Engineer, AmazingTalker, Taipei, Taiwan Jul. 2022 – Now
Ruby on Rails / Python / AWS / MySQL / Redis / Elasticsearch / GraphQL
Spontaneously take ownership of the a/b testing microservice and revamp functionalities to support parallel user assignments, complex policy configurations, and more. Yield widespread benefits across all feature teams, leading to an 80% increase in product designer adoption and a 25% reduction in development time for experiment-related tasks.
Led the design and development of advanced search functionality for the teacher wall, enabling students to find required teachers among 100+ multilingual instructional topics without difficulty, which boosts search usability by 20% and conversion rate by up to 10%.
Architect and build an English-practicing voice chatbot, AI Tutor Bella, which utilizes OpenAI API and AWS cloud technologies, helping 10k+ students to enhance their English speaking skills anywhere and anytime with minimal resistance.
Devise and implement a sophisticated and lightweight asynchronous mechanism for AI content generation with
OpenAI API. Leverage caching and queue workers to strategically enforce rate limits on OpenAI API calls and result in a P95 server response time under 100 ms.
Unify multiple video transcoding scripts into a single, well-modulized repository by introducing a flexible DAG model, empowering developers to define transcoding workflows in business logic for swift application integration with Lambda function which reduces development time by 25%.