Sithira Serasinghe
Senior Software Engineer at GitHub
Adelaide, South Australia
Summary
👤
Senior🎓
Top SchoolSithira Serasinghe is a Senior Software Engineer with 11+ years of experience building event-driven microservices and full-stack platforms across Go, Python, TypeScript, .NET, Kubernetes and Azure. Currently at GitHub, he designs scalable automation and observability solutions—previously at Canva he led org-wide Python DX and typing initiatives that improved ML productivity across thousands of daily CI runs. He combines hands-on engineering with systems thinking, having shipped Kafka sidecars, unified monitoring frameworks, and cross-language linting/typechecking architectures used company-wide. A Microsoft-certified Azure Solutions Architect and MSc Data Science candidate at UIUC, he applies ML and data techniques to production problems while mentoring engineers to senior levels. He also contributes to open-source testing for the well-known hub4j/github-api, improving test coverage and reliability—underscoring a long-running focus on quality and developer experience. Based in Adelaide, he writes about engineering trade-offs and developer tooling on his blog, sharing practical lessons from large-scale migrations and platform work.
11 years of coding experience
12 years of employment as a software developer
High School Pure & Applied Mathematics Physics Chemistry English, High School Pure & Applied Mathematics Physics Chemistry English at Ananda CollegeBachelor of Engineering (Hons) Software Engineering, Bachelor of Engineering (Hons) Software Engineering at University of WestminsterMaster of Computer Science in Data Science Computer Science, Master of Computer Science in Data Science Computer Science at University of Illinois Urbana-Champaign
Sinhalese, English
Stackoverflow
1,631reputation
127kreached
36answers
5questions
Github Skills (18)
unit-testing10
github10
java10
javas10
api10
github-api10
test-automation10
client-library9
junit9
java-api9
syntax-highlighting6
android-studio6
android6
netbeans6
bitbucket6
Programming languages (12)
Github contributions (5)
hub4j/github-api
Nov 2021 - Nov 2021
Java API for GitHub
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:2 reviews, 13 commits, 2 PRs in 5 days
Contributions summary:Sithira primarily focused on enhancing the test coverage of the Java API for GitHub. They added unit tests to cover specific scenarios related to pull requests, including checking for non-existent reviewers and users. Additionally, the user contributed to the test suite by adding tests and ensuring the functionality of searching features. The user's work also involved fixing PMD violations and running formatting tools.
apigithub-api-v3client-libraryjava-apijava
sahansera/WebSocketsTutorial
Jan 2021 - Sep 2022
Contributions:11 commits, 14 pushes, 2 branches in 1 year 8 months
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