Changelog
A git log of things I've shipped, optimized, and accidentally made famous.
2026
Built AI-Powered Content Automation Pipeline
100+ content sources, Claude-powered scoring, bilingual content generation
End-to-end content pipeline: fetch from 100+ sources, Claude AI scoring on 5 dimensions, bilingual angle generation (EN/ZH-TW), platform-specific drafting, quality validation, and Notion integration.
pythonclaudeaiautomationnotion
2025
Architected Multi-Source Admin Permission System (RBAC)
Enterprise-grade RBAC supporting IDP integration with O(1) permission lookups via DynamoDB single-table design
Designed and implemented comprehensive RBAC system with multi-source permission resolution (manual assignment, IDP group sync, device auth service), state machine pattern for admin invitation lifecycle, and event-driven architecture using SNS/SQS for cross-service sync.
goawsdynamodbrbacarchitectureOptimized Admin List API from 5s to sub-200ms
25x performance improvement for organizations with 10K+ admins
Refactored query complexity from O(N*M) to O(1) using batch operations and pre-aggregated indexes. Implemented Redis caching with intelligent invalidation and cursor-based pagination.
goawsredisperformancedynamodbBuilt Async Event Processing Infrastructure (Worker Hub)
Decoupled microservice communication enabling reliable high-throughput event processing
SQS-based worker service with two-queue pattern for multi-tenant admin provisioning, SNS event publishing, and ECS auto-scaling based on queue depth.
goawssqssnsecsmicroservicesLawsome: AI legal tech platform
Full-stack SaaS with React + FastAPI + AWS ECS infrastructure
Built complete legal tech platform with React 19 frontend, FastAPI backend with clean architecture, PostgreSQL database, deployed on AWS ECS Fargate with Terraform.
reactfastapiawsterraformai
2024
Overhauled Applicant Tracking System at Cake
Redesigned 100+ APIs, 20+ database tables, migrated hundreds of thousands of records
Led ATS overhaul including job application flow, email inbox mechanism, auth refactoring, pricing restructure, and candidate pipeline. Integrated Elasticsearch, built with FastAPI, managed infra with Terraform.
pythonfastapielasticsearchterraformarchitectureSaved NT$3-4M by Optimizing Algolia Search Costs
NT$3-4 million annual cost reduction
Implemented CDN rules to manage abnormal traffic and designed better cache mechanisms for legitimate usage, dramatically reducing Algolia search engine expenses.
algoliacdncachingcost-optimization
2023
Revamped Cake Backend Tech Stack
Migrated from legacy Rails to FastAPI with clean architecture, replacing manual clickops with Terraform
Introduced FastAPI server with clean architecture and data mappers to replace aging Ruby on Rails, achieving decoupling from Active Record's strong coupling patterns.
pythonfastapiterraformclean-architecturerails
2022
Migrated Cooby Infrastructure from Heroku to AWS
75.5% cost reduction with improved availability and scalability
Established unified Terraform management, designed highly available ECS architecture, integrated Stripe payments, built real-time analytics with DynamoDB and Redshift.
awsterraformecsdynamodbredshiftstripeCooby Selected for Forbes Asia 100 To Watch 2022
Only Taiwanese company on the Forbes Asia 100 To Watch list in 2022
Contributed to core backend infrastructure that supported Cooby's growth, leading to recognition as one of Forbes Asia's top 100 companies to watch.
startuprecognition
2019
Co-founded Remoneer, a self-service BI platform
Built data analysis platform and job search platform from scratch
Co-founded startup building self-service BI solutions with web crawling, Django REST APIs, and OCR search. Also built a remote-work-focused job search platform for Taiwan.
pythondjangostartupentrepreneurship