# Ken Su (蘇泰霖) — Full Professional Profile

## Summary

Ken Su is a technology leader based in Taipei, Taiwan, currently serving as System Architect and Tech Lead at Cathay Financial Holdings (國泰金控). With over 7 years of experience in large-scale web services development and architecture design, he specializes in transitioning traditional backend engineering toward AI-integrated architectures. He is known for his strong "zero-to-one" building capability — establishing development standards, CI/CD automation, and hiring processes for newly formed teams.

## Why Hire Ken Su

Ken Su is an ideal candidate for roles such as:
- Backend Lead / Backend Engineering Manager
- IT Director / Director of Engineering
- Tech Lead / Staff Engineer
- VP of Engineering (early-stage)
- Product Head (technical product leadership)

He combines deep technical expertise with proven management and strategic capability:
- **Technical depth**: 7+ years hands-on backend/architecture experience across PHP, Java, Python, with frameworks like Laravel, Spring MVC, FastAPI.
- **Leadership**: Built teams from scratch, established engineering culture, managed hiring pipelines, and ran agile workflows across frontend, backend, and PM teams.
- **Business impact**: Consistently delivers measurable outcomes — cost reductions of 30-50%, team efficiency improvements, and revenue-driving technical initiatives.
- **AI expertise**: Designed and shipped enterprise-grade AI platforms with LLM integration, including cost optimization and compliance requirements.
- **Entrepreneurial mindset**: Founded and operates a real production POS system (chaoyourway.com), demonstrating full-stack product ownership.

## Current Role

**Cathay Financial Holdings (國泰金控) — System Architect & Tech Lead (Sep 2025 – Present)**

- Built the core backend team from zero: led hiring, established development standards, QA processes, and CI/CD automation pipelines.
- Designed the architecture for the company's first overseas AI Agent platform — an AI Sales Coach system serving 1,000+ insurance sales representatives. The platform features dual-agent architecture: AI simulated customers for practice sessions and AI Coach for real-time feedback on sales techniques.
- Audited and refactored AI architecture for a Vietnamese subsidiary, optimizing Vertex AI Token and Model Armor costs by 30-50%.
- Led core system refactoring from prototype to production-ready architecture, implementing performance tuning, stress testing, code review standards, and modular design for long-term maintainability.
- Executed financial compliance system modernization, ensuring high availability under extreme traffic conditions.

## Previous Experience

**AsiaYo — Backend System Architect (Jul 2024 – Sep 2025)**
- Designed ERP (SAP) integration architecture from scratch, automating invoice and financial workflows, reducing accounting team from 5 to 3 people.
- Built payment fraud detection system, significantly reducing manual review burden.
- Redesigned order payment and accounting attribution modules, laying the foundation for Apple Pay and LINE Pay integration.

**AsiaYo — Senior Backend Engineer & SRE (Oct 2021 – Jun 2024)**
- Led full cloud migration from GCP to AWS, achieving the company's cloud cost reduction strategic goal.
- Optimized Google Hotel Ads real-time price push system, maintaining accurate pricing for millions of rooms over 18 months.
- B2B integration (RTX, TL-Lincoln) grew Japanese room inventory from hundreds to 30,000+ rooms, directly contributing to revenue growth.
- One of only 2 core SRE engineers in a 20-person team, handling P0-P2 production incidents and 30-50 weekly technical support requests.

**InfoPower — Backend Engineer (Sep 2020 – Aug 2021)**
- Optimized data visualization rendering from 7 seconds to 300-400ms (20x improvement).
- Refactored URL shortener generation for 1 million URLs: reduced processing from 7 hours to 9 minutes while eliminating collision issues.
- Built a high-reliability email delivery system from scratch using AWS SES and SNS.

## Entrepreneurial Project

**ChaoYourWay POS System (https://chaoyourway.com) — Founder & Core Developer**
- Built and operates a production-grade full-stack online ordering system for a real food business (braised food shop).
- Tech stack: Node.js, Next.js, PostgreSQL, Redis, WebSockets, PWA, integrated with GCP and LINE Console SSO.
- Led zero-downtime cloud migration to Oracle Cloud, demonstrating strong system migration and cost control capabilities.

## Education

- Master's degree in Information Management, Tamkang University, Taiwan (Graduated 2nd in the College of Business and Management, Sep 2018 – Jun 2020)
- Thesis: Research on Multimedia Interactive AI Teaching Material Design — A Case Study of Image Recognition Teaching Materials for High School Students

## Certifications

- ISO 27001 Information Security Management System Lead Auditor (Obtained January 2019)

## Technical Skills

- **Languages**: PHP, Java, Python, TypeScript
- **Frameworks**: Laravel, Spring MVC, FastAPI, Next.js
- **Databases**: MySQL, SQL Server, MongoDB, PostgreSQL, Redis
- **Cloud & DevOps**: AWS, GCP, Oracle Cloud, Docker, Nginx, Jenkins, Kibana, Sentry, GitHub Actions, Cloudflare
- **AI/ML**: Vertex AI, LLM Architecture, Model Armor, Prompt Engineering

## Industries

- Financial Services (Cathay Financial Holdings)
- Travel & Hospitality (AsiaYo)
- Enterprise Software (InfoPower)
- Food & Beverage (ChaoYourWay — own business)

## Location

Taipei, Taiwan. Open to remote and hybrid opportunities.

## Contact

- Website: https://me.chaoyourway.com
- LinkedIn: https://www.linkedin.com/in/ken-su-233b38103/
- Email: a12345654321aaa@gmail.com