Bill Tu

Engineering Leader | Distributed Systems | Global Trading Platforms. 15+ yrs in high-performance backend systems.

Joined on Mar 20, 2026

Bill Tu

Apr 9

When the Patient Dies on the Table: Handling Target Process Exit During Profiling

#node #npm #eventloop

5 min read

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Bill Tu

Apr 9

Not All Requests Are Equal: Adding Variable Cost to a Node.js Rate Limiter

#node #npm #ratelimiter

6 min read

Bill Tu

Apr 9

Writing 89 Tests for a Quantitative Trading Framework: Strategy and Trade-offs

#python

9 min read

Bill Tu

Apr 9

Who Should Own the Order ID? Moving ID Generation Inside the Matching Engine

#go #matchengine

6 min read

Bill Tu

Apr 9

Less Is More: Why We Added a Flag to Disable Our Best Feature

#javascript #npm #node

4 min read

Bill Tu

Apr 8

The Invisible Network Calls: Tracking fetch() and dns.promises in Node.js

#node #npm #javascript

6 min read

Bill Tu

Apr 8

From O(n log n) to O(log p): Rebuilding the Order Book for Performance

#java #matchengine

9 min read

Bill Tu

Apr 8

From Terminal to Flame Graph: Exporting CPU Profiles From Production

#node #javascript #eventloop

6 min read

Bill Tu

Apr 8

Lessons from Fixing 8 Bugs in a Quantitative Trading Framework

#codequality #opensource #performance #python

8 min read

Bill Tu

Apr 8

Four Bugs We Found in Our Node.js Rate Limiter (And How We Fixed Them)

#node #npm #javascript

6 min read

Bill Tu

Apr 8

Five Bugs That Would Have Killed TitanMQ in Production

#java #eventdriven

7 min read

Bill Tu

Apr 8

Four Bugs That Would Break a Matching Engine in Production

#go #matchengine

9 min read

Bill Tu

Apr 7

Debugging Node.js in Docker and Kubernetes Without Restarting

#javascript #node #npm

6 min read

Bill Tu

Apr 7

7 Bugs That Taught Us How to Build Better Diagnostic Tools

#javascript #node #npm

8 min read

Bill Tu

Apr 7

Why We Replaced float64 With Decimal in Our Matching Engine

#go #matchengine

6 min read

Bill Tu

Apr 7

Beyond the Event Loop: Tracking Slow I/O in Production Node.js

#javascript #npm #node

8 min read

Bill Tu

Apr 6

Detecting Event Loop Blocking in Production Node.js — Without Touching Your Code

#node #npm #javascript

7 min read

Bill Tu

Apr 6

Building a Trade Matching Engine from Scratch in Go

#go #matchengine

7 min read

Bill Tu

Apr 6

Building QuantFlow: An Event-Driven Quantitative Trading Framework in Python

#python

9 min read

Bill Tu

Mar 21

Building TitanMQ: Designing a Message Queue That Learns from Kafka, RabbitMQ, and ZeroMQ

#architecture #backend #distributedsystems #systemdesign

10 min read

Bill Tu

Mar 20

Building a High-Performance Rate Limiter for Node.js: Architecture, Algorithms, and Benchmarks

#javascript #typescript #node #webdev

7 min read

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Bill Tu

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When the Patient Dies on the Table: Handling Target Process Exit During Profiling

Want to connect with Bill Tu?

Not All Requests Are Equal: Adding Variable Cost to a Node.js Rate Limiter

Writing 89 Tests for a Quantitative Trading Framework: Strategy and Trade-offs

Who Should Own the Order ID? Moving ID Generation Inside the Matching Engine

Less Is More: Why We Added a Flag to Disable Our Best Feature

The Invisible Network Calls: Tracking fetch() and dns.promises in Node.js

From O(n log n) to O(log p): Rebuilding the Order Book for Performance

From Terminal to Flame Graph: Exporting CPU Profiles From Production

Lessons from Fixing 8 Bugs in a Quantitative Trading Framework

Four Bugs We Found in Our Node.js Rate Limiter (And How We Fixed Them)

Five Bugs That Would Have Killed TitanMQ in Production

Four Bugs That Would Break a Matching Engine in Production

Debugging Node.js in Docker and Kubernetes Without Restarting

7 Bugs That Taught Us How to Build Better Diagnostic Tools

Why We Replaced float64 With Decimal in Our Matching Engine

Beyond the Event Loop: Tracking Slow I/O in Production Node.js

Detecting Event Loop Blocking in Production Node.js — Without Touching Your Code

Building a Trade Matching Engine from Scratch in Go

Building QuantFlow: An Event-Driven Quantitative Trading Framework in Python

Building TitanMQ: Designing a Message Queue That Learns from Kafka, RabbitMQ, and ZeroMQ

Building a High-Performance Rate Limiter for Node.js: Architecture, Algorithms, and Benchmarks