Supun Setunga
Senior Compiler Engineer at Flow Blockchain
Vancouver, British Columbia, Canada
Summary
🤩
RockstarSupun Setunga is a Senior Compiler Engineer with 10 years of experience specializing in language design and compiler implementation for resource-oriented smart contract languages. He currently develops Cadence at Flow, owning phases from parsing and type checking to the interpreter and on-chain runtime integration, and previously shaped Ballerina's compiler and runtime at WSO2. An active open-source contributor, his work ranges from precise parser enhancements for functional binding patterns to metering and memory accounting for arrays/dictionaries, and maintenance work that ensures cryptographic conversion correctness in flow-go. Trained in statistics with a strong applied machine learning background, he brings a data-driven, measurement-focused approach to language tooling, runtime reliability, and developer ergonomics. Based in Vancouver, he combines production-grade systems thinking with attention to language safety and developer experience.
11 years of coding experience
9 years of employment as a software developer
Stackoverflow
314reputation
2kreached
9answers
0questions
Github Skills (36)
programming-language10
parser10
testing10
cadence10
programminglanguage10
http10
programminglanguages10
type-system10
type-systems10
go10
language-design10
parsing10
parse10
blockchain10
ballerina10
Programming languages (11)
Github contributions (5)
ballerina-platform/ballerina-lang
Nov 2016 - Dec 2020
The Ballerina Programming Language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:389 reviews, 3045 commits, 1537 PRs in 4 years 1 month
Contributions summary:Supun's commits focus on implementing basic parsing for functional binding patterns within the Ballerina programming language. The changes involve modifications to the BallerinaParser.java file, specifically adding parsing support and recovery mechanisms for these patterns. In addition to that, the code changes involve adding tests related to the newly added feature to handle more specific scenarios.
compilerprogramming-languageinterpreterballerinaballerina-lang
onflow/cadence
Jan 2021 - Jan 2023
Cadence, the resource-oriented smart contract programming language 🏃♂️
Role in this project:Back-end Developer
Back-end DeveloperContributions:27 releases, 2462 reviews, 1285 commits in 2 years
Contributions summary:Supun's commits primarily focus on adding and modifying code related to metering, specifically for various expression types such as boolean, string, integer, array, and dictionary. They have introduced new memory usages and incorporated element size into array/dictionary expression metering. Additionally, they implemented the core logic of several static type-checking features, which indicates strong proficiency in the project's core language design.
cadencesmart-contractcontractblockchaincompiler
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