Senior Staff Software Engineer @ ServiceNow

Andrea Bergia

Senior Staff Software Engineer @ ServiceNow

I have worked as a software engineer for over 15 years now, starting as a product engineer and working also in consultancy. I have always been passionate about compilers and programming languages, and for the past two years, I have been working as a Sr. Staff Engineer at ServiceNow on our programming language runtime and related technologies.

Andrea Bergia

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Senior Staff Software Engineer @ ServiceNow

This edition

Let's write an interpreter with a JIT

November 04 2025 - 15:15 (45 min )

You know what's fun? Writing an interpreter for a tiny programming language. You know what's even more fun? Writing a JIT compiler for it!
In this talk, we'll walk through writing an interpreter for a very simple language along with a JIT compiler, and we'll discuss some of the many possible extensions for the language. We won't be building anything more than a toy, but it will be a great exercise in understanding how programming languages and compilers work under the hood. We'll quickly tour parsing and abstract syntax trees (ASTs), intermediate representation (IR) and static single assignment (SSA), examine a compiler backend, and briefly touch upon register allocation and optimizations.

LEVEL: Advanced

Let's write an interpreter with a JIT

RustLab is a conference made by Develer.
Develer is a company based in Campi Bisenzio, near Florence. Our motto is : "Technology to give life to your products". We produce hardware and software to create exceptional products and to improve industrial processes and people's well being.
In Develer we have passion for the new technologies and we offer our clients effective solutions that are also efficient, simple and safe for the end users. We also believe in a friendly and welcoming environment where anybody can give their contribution. This passion and this vision are what we've been driven to organize our conference "made by developers for developers".

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