John Liu

John Liu

Passionate about technical leadership, system architecture, and education.

I'm John Liu, a full-stack engineer and engineering leader who has spent over a decade building products, managing engineering teams, and sharing what I've learned.

My career started with internships at a real estate firm and Taiwan's largest travel group, and I also worked at a top-3 global cosmetics company helping maintain their web systems. I then joined the Manila Economic and Cultural Office as an IT Specialist, independently managing the organization's websites. From there I moved through full-stack engineering roles in fintech and travel tech startups, building web services in PHP, Python, JavaScript, Ruby, and C#. In 2019, I co-founded Bili Digital as CTO, growing a team of 10+ to build property management products from scratch — serving Taiwan's largest rental management company on the B2B side and acquiring 10,000+ app users on the B2C side, while maintaining 50+ daily deployments on GCP.

Along the way I began stepping into Team Leader roles, taking on more responsibility for people and delivery alongside hands-on development. In 2019, a friend and I co-founded Bili Digital, where I served as CTO and scaled the team to 10+ people — building property management products from the ground up, landing Taiwan's largest rental management company as a B2B client, and growing to 10,000+ B2C app users, all while keeping error rates below 1% with 50+ daily GCP deployments.

I joined Netskope in 2022 as a Full Stack Engineer and was promoted twice since. I now serve as Engineering Manager, leading the Taiwan team on the security platform's UI Admin Portal — covering the Steering, Enterprise Browser, SWG, RBI, IPS, and Data Lineage product lines. Within a year I grew the Taiwan team by recruiting 12 engineers. Beyond delivery, I've actively worked to build a strong engineering culture through internal tech talks and co-organizing the Global Hackathon.

Beyond my day job, I regularly speak at conferences including COSCUP, MOPCON, JSDC, and DevOpsDays, and have created online courses and mentored engineers through HiSKIO, NTC.im, AiWorks, and iSpan.

Tech Skills

Languages

PHP Ruby Python Node.js JavaScript C#

Frameworks

Rails Laravel CodeIgniter Flask Vue Angular React

Databases

MySQL MariaDB Redis

Cloud

GCP Azure

CI/CD

GitHub Actions Circle CI Drone CI Jenkins

Infrastructure

Docker Kubernetes Nginx Apache Supervisor Sidekiq

Work Experience

Netskope

Engineering Manager

Sep 2024 – Present

Led Web UI development for Steering, Enterprise Browser, SWG, RBI, IPS, and Data Lineage products, managing a 10+ person team across Taiwan, the US, and India.

Senior Full Stack Engineer

Apr 2024 – Aug 2024

Led development for Steering and Enterprise Browser as tech lead of a 3-person team.

Full Stack Engineer

Feb 2022 – Mar 2024

Co-founder & CTO

Bili Digital

Jul 2019 – Dec 2021

Led a team of 10+, serving Taiwan's largest rental management company with a B2B core system and operating a B2C asset management platform for individual landlords.

Full Stack Engineer

Asia Money Fintech Company

Jul 2018 – Jul 2019

Fintech web product development and coordination with outsourced teams.

Lead Engineer

Deila

Apr 2017 – Mar 2018

Led a 5-person team developing a travel platform product.

IT Specialist

Manila Economic and Cultural Office

Oct 2015 – Mar 2017

Website maintenance and collaboration with an outsourced team on a system architecture migration project.

Intern

Estée Lauder

Jan 2016 – Feb 2017

Managed the group's Taiwan website operations and coordinated with the India engineering team.

Intern

Lion Travel Group

Jul 2015 – Dec 2015

Built an automated travel itinerary planning system and managed the project.

Intern

Century 21 Group

Apr 2015 – Sep 2015

Organized real estate registration data and built the database.

Bachelor's, Management of Information System

National Cheng Chi University, Taiwan

🎓

Conference Talks

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

Collaborated with 3 engineers to build a dedicated Web UI feature-branch-based test cloud using idle corporate resources, resolving hardware resource conflicts.

Online Courses

HiSKIO

Third-party payment application

Financial concepts, Invoice/Credit card/Bank applications, SDK integration, and Line Pay.

Finance SDK Payment

View Course →
HiSKIO

Restful API Development

HTTP concepts, Python/Flask/SQLAlchemy, JWT, Google/Facebook Auth, WebSocket, and Swagger.

Python Flask REST API

View Course →
HiSKIO

Marketing with Python

Web crawling (PTT, News, FB), SQL basics, A/B Testing, and Chatbot application.

Python Crawling Chatbot

View Course →
HiSKIO

Laravel Master

Comprehensive Laravel guide: PHP basics, ORM, Auth, Shopping Cart, Redis, Queue, DevOps, and more.

Laravel PHP DevOps

View Course →
HiSKIO

Database Management

SQL + Python, ACID, Transactions, Security, Backup, Logging, and System Design.

SQL Database System Design

View Course →

Teaching Experience

2022–2025

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".

2024

iSpan (資展國際)

JavaScript Front-end instructor.

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.