patrick@home:~$ whoami --verbose
// trading / SaaS / medical / Web3 & more — complex systems × product definition × AI-leveraged delivery
locationShenzhen · Remote
handle@patricklau
since2010-06 · Samvo Group (UK)

Patrick Lau / 刘浩然

Product-Focused Tech Lead

Understand the business. Define the product. Use AI to amplify delivery.

patrick@home:~$ now
Building AI-native products — not faster software, different software. Judged by real use and willingness to pay, not labels.
say hi ↓
patrick@home:~$ stats --highlights
3-week rebuild
solo V1, after 8 months maintaining it
judged upkeep had passed rebuild cost
50-person org
product & engineering leadership
from 6-person team lead to director / manager
2,400 tenants
multi-tenant fresh-supply SaaS
150k orders/day · 800k picks/day
¥30M saved
for medical patients · imaging cloud
re-exam savings · 10× throughput · 99.9% uptime
patrick@home:~$
01──whoami
patrick@home:~$ cat ~/about.md

A regulated sportsbook taught me architecture under high-concurrency load. Two failed business pivots before a multi-tenant SaaS taught me to turn operational pain into a product. A medical platform taught me that compliance and trust can matter more than speed.

With AI on the implementation, a small experienced team now ships what used to need far more roles and handoffs. That didn't make my job easier — it moved it upstream: what problem is worth solving, what the product should become, and what evidence proves it matters.

Where I do my best work: a real business problem, a system complex enough to punish guesswork, and a team that wants a product — not a feature list.

02──capabilities
patrick@home:~$ tree -L 2 capabilities/
capabilities/
├── product-definition/
├── Business modeling
├── First value + full-loop design
├── AI-native workflow redesign
└── Usage + commercial validation
├── complex-systems/
├── High-concurrency + consistency
├── Multi-tenant SaaS
├── Medical data + compliance
└── Engineering org + governance
└── ai-leveraged-delivery/
├── Designing the human–AI split
├── Short feedback loops
├── Small-team full-product delivery
└── Enterprise workflow adoption
patrick@home:~$ cat tools/selected.txt
java spring-cloud fastapi ts rust tauri react uni-app flutter wechat-mp mysql tidb redis minio elasticsearch claude-code codex-cli web3 custody-sdk flyway
03──work
patrick@home:~$ git log --since=2010 --format=long
commit a1b2c3d (HEAD → main)
Author: Independent Product & Tech Lead
Date: 2025.10 — Now
Where: Remote · Independent · Shenzhen Haobing Xingcheng Technology Co., Ltd.

Product-focused tech lead on AI-native work: from business problem to product definition to software in real use.

stack: product-definition · complex-systems · ai-coding
commit b2c3d4e
Author: R&D Manager · MD Class II Rep
Date: 2021.04 — 2025.10
Where: Shenzhen · Medical imaging cloud platform

Made cross-level architecture calls in a medical compliance setting (e.g., skipping sharding and going straight to TiDB), landed cross-hospital imaging sharing in production — cumulative re-exam savings >¥30M for patients.

stack: java · tidb · minio · elasticsearch · ai
commit c3d4e5f
Author: R&D Director
Date: 2014.11 — 2021.04
Where: Shenzhen · Fresh-supply SaaS company

Lived through two failed business pivots, then sold the pain we'd just survived — as a fresh-supply SaaS for other operators.

stack: java · spring-cloud · mysql · redis · rabbitmq
commit d4e5f6a
Author: Senior Engineer
Date: 2014.06 — 2014.11
Where: Shenzhen · Lottery company

Worked on middleware for high-concurrency bet placement at a lottery platform.

stack: java · rabbitmq · redis
commit e5f6a7b
Author: System Analyst · Java Team Leader
Date: 2010.06 — 2014.06
Where: Shenzhen · Samvo Group (UK regulated sportsbook)

Led the SOA rewrite of SportsBook at a UK regulated sportsbook — first full exposure to international collaboration, high-concurrency architecture, and regulator certification.

stack: java · soa · oracle · f5 · maven
06──talks
patrick@home:~$ ls topics-i-can-talk-about/
└─what-not-to-delegate-to-ai-in-complex-systems
└─product-definition-when-building-is-cheap
└─evidence-over-labels-is-this-ai-product-real
# has run enterprise AI Coding sessions · broader topics welcome
# "AI didn't make engineering harder — it just exposed collaboration problems that were always hidden."
05──ask patrick
patrick@home:~$ ssh patrick@chat
Connecting to patrick@chat...
Handshake OK. session established.
# type or tap a suggested question
# This site's FAQ assistant. Ask about projects, product judgment, complex systems, or collaboration — or use the design switches to retheme the site.
ask-patrickterminal · dark · emerald
patrick
Hey — I'm this site's FAQ assistant. Ask about Patrick's work, product judgment, complex systems, or collaboration — or use the switches below to remix the site.
design switches ·
ask ·
07──contact
patrick@home:~$ cat ~/contact.conf
# primary
LOCATION="Shenzhen · Remote"
# credentials · ask for details
EDU="South China Univ. of Tech · CS, BS"
PMP_HISTORY="PMP credential · earned 2023"
CERT_MED="Med Device Class II · Mgmt Rep · 2021–2025"
patrick@home:~$ ./say-hi.sh