Simon D
Node.js Software Engineer II at Datadog
Oregon, France
Summary
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RockstarSimon D is a Node.js Software Engineer II with eight years of Node-centric experience and a lifelong passion for computer science that began with C++ at age 10. He specializes in backend engineering for real-time single-page apps, REST APIs, and applicative security, currently scaling Datadog’s Node.js APM and AppSec capabilities after Datadog acquired Sqreen. A pragmatic problem-solver and fast learner, he blends hands-on DevOps, architecture, and cybersecurity work to deliver elegant, performant solutions. His open-source contributions to Datadog’s dd-trace-js notably improved Express integration and WAF performance, adding metrics and optimizations that sharpen both security and observability. Simon’s background spans gambling/trading platforms, e-commerce, advertising, and identity systems for Orange France, giving him a strong track record in high-throughput, security-sensitive environments. Based in Oregon but rooted in France, he pairs deep technical curiosity with practical product-focused engineering.
5 years of coding experience
5 years of employment as a software developer
French, English, Spanish
Github Skills (13)
datadog10
it-security10
javascript10
nodejs10
expressjs10
tracer10
trace10
apm10
security10
api-design9
integrations9
api9
metric8
Programming languages (6)
Github contributions (5)
DataDog/dd-trace-js
May 2021 - Jan 2023
Datadog APM client for Node.js
Role in this project:
Back-end & Security Engineer
Back-end & Security EngineerContributions:5 releases, 1324 reviews, 695 commits in 1 year 9 months
Contributions summary:Simon primarily contributed to the implementation and enhancement of AppSec features, integrating security measures within the Datadog APM client. Their work involved adding and improving support for Express.js, developing express support, and improving existing features. They also focused on optimizing the WAF by implementing optimizations for the WAF and adding metrics to improve performance and error reporting.
apmjavascripttracingapm-tracertracer
DataDog/dd-native-appsec-js
Oct 2021 - Mar 2025
Node.js bindings for libddwaf
Contributions:18 releases, 134 reviews, 89 PRs in 3 years 5 months
node-jsnodejsjs-bindings
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