Chiran Fernando
Technical Lead at WSO2
Sri Lanka
Summary
🤩
Rockstar🎓
Top SchoolChiran Fernando is a Technical Lead with 10 years of hands-on experience in backend development, test automation, and improving observability at WSO2, where he progressed from Software Engineer to his current leadership role. He contributes to well-known open-source projects such as Siddhi (a stream-processing/CEP engine), focusing on robust test coverage, refactoring, and query validation that improve code quality and reliability. Skilled at designing logging and circular-buffer appenders and at enhancing test suites and UTF-8-safe utilities, he blends practical engineering with a quality-first mindset. Based in Sri Lanka and grounded in a BSc (Hons) in Information Technology from the University of Moratuwa, he pairs deep implementation experience with clear technical writing—having updated language-spec docs for Ballerina—making him effective at both building and explaining complex systems.
10 years of coding experience
7 years of employment as a software developer
BSc. (Hons) in Information Technology, Information Technology, BSc. (Hons) in Information Technology, Information Technology at University of MoratuwaJoseph Vaz College, WennappuwaSt. Mary's College, Chilaw
English, Sinhala, Tamil
Stackoverflow
437reputation
5kreached
40answers
0questions
Github Skills (22)
testng10
testing10
java10
javas10
ballerina10
siddhi10
documentation10
utf9
unit-testing9
apidoc9
complex-event-processing9
commonmark9
commonjs9
api9
stream-processing9
Programming languages (14)
Github contributions (5)
siddhi-io/siddhi
Oct 2017 - Jan 2020
Stream Processing and Complex Event Processing Engine
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:145 commits, 95 PRs, 74 pushes in 2 years 4 months
Contributions summary:Chiran primarily focused on adding and updating test cases for the Siddhi engine, specifically targeting query functionality. The contributions involved refactoring existing tests to use TestNG and adding new test cases to cover boolean and string comparisons within queries. Additionally, the user addressed a typo and updated equals methods, highlighting a focus on code quality and maintainability. The user also made incremental changes in multiple files that shows their working knowledge on testing, fixing and error handling.
stream-processingevent-processingcomplex-event-processingonline-learningcloud
ballerina-platform/ballerina-dev-website
Jan 2022 - Nov 2022
Dev version of the ballerina.io website
Role in this project:Technical Writer
Technical WriterContributions:106 reviews, 31 commits, 62 PRs in 9 months
Contributions summary:Chiran primarily contributed to the documentation of the Ballerina language specification. The commits involved updates to the language specification, specifically regarding boolean operations, and merging in updates from the master branch, which included significant structural changes and content additions. The changes focus on refining and expanding the language documentation.
ballerinadev
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