# Luca Casonato 🏳️‍🌈 (@lcas.dev)

Profile: https://sifa.id/p/lcas.dev

## Career

- **Lead Software Engineer at Deno** (Jul 2020 - Mar 2026)
  Full-time · Remote
  Technical lead for the Deno Deploy product. Development on JSR (JavaScript Registry), and member of the JSR board. Engineering on the open source Deno project. Built the Fresh web framework (v1). Work in web standards bodies as chair of TC55 (WinterTC) at ECMA, delegate at TC39 (committee that designs the JavaScript language), and contributions to WHATWG and W3C specs.
- **Software Engineering Intern at soft2tec GmbH** (May 2019 - Aug 2019)
  Internship
  Introduced new version control scheme and more CI workflows. Also worked on in-house iOS apps using Flutter.

## Talks & sessions

### [Debugging apps with Deno and OpenTelemetry](https://sifa.id/p/lcas.dev/talk/debugging-apps-with-deno-and-opentelemetry-3mpsrp4es6b2z)
_20-30 min · developers_
Have you ever struggled debugging your apps in production? Deno now supports OpenTelemetry - a standard for metrics, logs, and traces - which enables much simpler debugging of your apps in production. Learn how to use OpenTelemetry to debug your Deno or Node app written in TypeScript of JavaScript.
- JSWorld 2025 · Mar 2025 · Amsterdam, The Netherlands · Presenter · In person
- La Conf' 2025 · Feb 2025 · Paris, France · Presenter · In person
### [JavaScript should come with batteries](https://sifa.id/p/lcas.dev/talk/javascript-should-come-with-batteries-3mpsr7gpdab2z)
_20-30 min · developers_
Setting up JavaScript projects is no fun. Getting started involves installing and configuring node, tsc, prettier, eslint, a testing framework, a database driver, and more. Why is JavaScript not batteries included? In this talk we'll talk about how Deno fixes this, letting you focus on building stuff. We explore what benefits full tooling integration unlocks, and remember how fun it is to program if your tools help you, rather than requiring your babysitting.
- React Day Berlin 2023 · Dec 2023 · Berlin, Germany · Presenter · In person
- JavaScript Day 2023 · Nov 2023 · Presenter · Virtual
### [Building the next cloud compute primitive — in Rust](https://sifa.id/p/lcas.dev/talk/building-the-next-cloud-compute-primitive-in-rust-3mpssce4jpb2z)
_60 min · developers_
Web evolution from physical to cloud to serverless demands optimal performance and security. The shift to JavaScript isolates calls for high concurrency, low memory use, and maximum performance - ideal for Rust. Discover how we use Rust at Deno to build the future of web infrastructure.
- RustLab 2023 · Nov 2023 · Florence, Italy · Presenter · In person
### [Writing universal libraries for Deno, Node, and the browser](https://sifa.id/p/lcas.dev/talk/writing-universal-libraries-for-deno-node-and-the-browser-3mpsqtuvsez2z)
_20-30 min · developers_
This talk will walk you through writing a module in TypeScript that can be consumed by users of Deno, Node, and browsers. I will walk through how to set up formatting, linting, and testing in Deno, and then how to publish your module to deno.land/x and npm. I will also start out with a quick introduction on what Deno is.
- Global Scope'22 · Jul 2022 · Presenter · Virtual
- Type Congress 2022 · Apr 2022 · Presenter · Virtual
- Node Congress 2022 · Feb 2022 · Presenter · Virtual

## Languages

- Dutch (native)
- English (native)
- German (native)
- Italian (elementary)

## Links

- GitHub: https://github.com/lucacasonato (verified)