DJ.
Vol. XII  ·  No. 277
Sunday, 4 October 2026

The Jayawardena Herald

“All the work that’s fit to ship.”

Established 2015Price: Free
Hong Kong Bureau
A1 · Front Page ProfileBy Dulanga Jayawardena

Dulanga
Jayawardena.

Hong Kong—Software Engineer at Bullish

Before Bullish he was at Morgan Stanley, where he built risk systems traders and risk managers relied on.

He has worked in Sri Lanka, Hong Kong, and the United States, mostly in Java and Python, on distributed systems and the automation that keeps them running.

He also mentors junior engineers and writes about the systems he builds.

Portrait of Dulanga Jayawardena, a software engineer based in Hong Kong

On the distributed-systems beat since 2015.

Below the fold
Page A2Experience

Where the work was done.

Risk systems at Morgan Stanley, e-commerce at VBrands, and Android apps in Sri Lanka before either.

Built and ran risk systems for front-office trading teams in four regions.

  • Built Java and Spring microservices for risk exposure across equities, derivatives, and FX
  • Subject-matter expert for the prod-parallel environment, in charge of its performance, capacity, and coordination across regions
  • Automated end-of-day and QA workflows in Python, Perl, Bash, and SQL, and provided Level 3 support for JVM and C++ systems in four regions
JavaSpringPythonPerlBashSQLKafkaMQJenkins
Page A3Writing

Notes from the field.

Project write-ups and research notes, filed as the work gets done.

Building Software for Equity Risk at Morgan Stanley
Work
6 min read

Building Software for Equity Risk at Morgan Stanley

On the Equity Risk Technology team, I built the global services and pipelines traders and risk managers used to monitor exposure and PnL across the equity book in real time. A large part of the role w…

1 May 2025Read
VBrands — Technology Consultant & Digital Operations
Work
4 min read

VBrands — Technology Consultant & Digital Operations

At VBrands, I wore multiple hats across software development, automation, and digital operations for the company’s e-commerce platform and fulfillment pipeline. The role was deeply hands-on — backend…

31 December 2020
Studying Systems Engineering at CUHK
Education
4 min read

Studying Systems Engineering at CUHK

During my time at The Chinese University of Hong Kong (CUHK), I combined coursework, projects, and extracurricular activities to build a strong foundation across software engineering, data science, an…

30 June 2020
Simulating the Spread of Opinions in Social Networks
Research
7 min read

Simulating the Spread of Opinions in Social Networks

How do opinions spread through social networks? This project explored that question using two well-known models in opinion dynamics: DeGroot (linear) and Bounded Confidence (non-linear), and proposed…

31 May 2020Read
Doing my exchange semester at Dartmouth College
Education
4 min read

Doing my exchange semester at Dartmouth College

During my exchange at Dartmouth College, I studied at the intersection of health technology, materials science, and engineering design — working in advanced labs and alongside some of the brightest mi…

1 December 2018