John Liu — Engineering Manager & Ex-CTO

About Me

Leadership, Code & Community

As a co-founder of an asset management startup, I led the team to build our B2C and B2B products from 0 to 1. These products help customers manage assets more effectively and focus more on improving their business performance.

As an experienced web full-stack engineer and technical leader, I built several production services in PHP, Python, JavaScript, and Ruby. In the meantime, I am experienced in GCP, Azure, and Kubernetes. In order to ensure product quality, I established the process of CI/CD, deployment, and alerting of our products.

As a tech speaker, I engage in several conferences such as COSCUP, MOPCON, and Agile Summit. Otherwise, I helped organizations such as AppWorks School, HiSKIO, and NTC.im to mentor engineers to grow.

Professional Journey

Work Experience

Netskope

Engineering Manager

Sep 2024 – Present

Led Web UI for Steering, Enterprise Browser, SWG, RBI, IPS, and Data Lineage products across Taiwan, US, and India teams, delivering 55+ projects on schedule
Spearheaded transition from Monolithic to Micro-frontend architecture to boost development velocity
Recruited 12 engineers within a year and established mentorship system
Hosted bi-weekly technical sharing sessions (17+ Tech Talks)
Co-organized 2024/25 Global Hackathons, achieving 60% increase in local registration
2025 Hackathon solo winner in "Customer Champion" category

Engineering Management Micro-frontend Team Building

Senior Full Stack Engineer

Apr 2024 – Aug 2024

Led RBAC system development, unit testing infrastructure, and PHP version upgrade (7.4 → 8.1)
Raised automated test coverage from 35% to 90% and reduced bugs by 70%
Led Contract Testing project: built infrastructure and completed 17+ services and 400 API contracts
Reduced QA test environment setup time from 3 days to 2 hours
Participated in company hackathon - ranked 6th of 42 global projects

PHP 8.1 Contract Testing System Design

Full Stack Engineer

Feb 2022 – Mar 2024

Full Stack Engineer contributing to web development for cloud security products

Full Stack Web Development

Co-founder & CTO

Bili Digital

Jul 2019 – Dec 2021

Built property management product with 200+ paying users and 10,000+ app users
Managed DevOps on GCP: 50+ daily deployments, pre-deployment within 10 minutes, service recovery in under 3 minutes, error rate below 1%
Led software team of 10+ people including PMs, Mobile Developers, Full-stack Web developers, and QA
Set up project management with Slack, Asana, Jira, and Line
Conducted 1-1 meetings, technical roadmap meetings, OKR, and PIP

GCP DevOps Startup Leadership Python

Full Stack Engineer

Asia Money Fintech Company

Jul 2018 – Jun 2019

Developed pponline intelligent mediation mechanism, report system, Excel management service, I18n
Built cascading bank & invoice API, frontend page development and UX design
Managed company internal CRM system and Philippines virtual account payment project
Led and managed outsourcing team of 5 members
Developed crawler programs for data capturing and data analysis

Fintech Full Stack System Integration

Full Stack Engineer

Deila

Apr 2017 – Mar 2018

Scrum Master and Developer Lead in Agile development, built technical team culture
Led development team of 5 members
Enhanced version update speed from once a month to once every two weeks
Managed Azure cloud server environment and Version control (Git on Visual Studio Team Service)
Technical representative, worked with Microsoft and other partners
Recruited developers and built training program

Azure Scrum Master C#

IT Specialist

Manila Economic and Cultural Office

Oct 2015 – Mar 2017

Maintained old website (ASP.NET with C#) and new website (PHP) independently
Responsible for new website rebuilding project with outsourcing company for 6 months
Fixed hardware issues and interviewed 3 IT candidates

ASP.NET PHP IT Support

Academic Background

My Education

Master's degree, Engineering Management

University of Colorado Boulder

Bachelor's degree, Management of Information System

National Cheng Chi University

Public Speaking

Conference Talks

Achievements

Honors & Awards

🥇

Customer Champion Award — Netskope Hackathon

2025 · Top 4/123

Developed a Gemini-powered AI sales tool as a solo contributor using Cursor in a spec-driven workflow. Designed to bridge the "last mile" of sales and effectively boost NRR.

🥈

Finalist (New Horizons) — Netskope Hackathon

2024 · Top 13/101

Developed a Rust-based cross-platform desktop application as a solo contributor, addressing legacy UI issues and high cross-platform development costs.

🥉

Finalist (Fixing the Foundations) — Netskope Hackathon

2023 · Top 14/66

2024

iSpan (資展國際)

Lead instructor for JavaScript Front-end Fundamentals bootcamp.

2022–2024

AiWorks

Planned and conducted Agile, Code Review, Unit Testing, and QA workshops for CS undergrad/graduate students. Coached 3 junior instructors and taught "Introduction to Software for Non-Engineers".

2022

LeetCode

Course creator for "Introduction to Databases" online tutorials.

2018

SkillShop

Visiting lecturer at National Taipei University for Data Visualization series.

2018

Gjun (Giant Computer)

Online instructor for Front-end Design live-streaming series.

2017–2020

NTC.im

Course instructor for Front-end Design, Data Visualization, and API Development series.

2016–2020

Orange Apple

Coding instructor for kids (Scratch, JavaScript, Minecraft, and AI).

2016–2019

Private Tutor

Python interview preparation, NBA data modeling/thesis analysis, mobile game character sentiment analysis, and personal website development.