Julien Mounier
Senior Software Engineer at Metal Gear
Greater Paris Metropolitan Region France
Summary
👤
Senior🎓
Top SchoolJulien Mounier is a Senior Software Engineer with a decade of experience specializing in backend and SDK development, particularly JavaScript SDKs for end-to-end encryption. He has driven core SDK work at Tanker and Doctolib's E2EE team, tackling development, maintenance, and testing of encryption-focused libraries built on libsodium. Julien blends hands-on implementation and API design—evidenced by an early Tanker internship where he reworked a large-data encryption API and prototyped an S3 encryption proxy. Now at Metal Gear, he continues to focus on secure, production-grade systems while leveraging teaching experience from EPITA to mentor peers. Colocated in Greater Paris, he combines applied cryptography engineering with practical product delivery across startups and healthcare-tech.
10 years of coding experience
5 years of employment as a software developer
engineering degree IT, engineering degree IT at Sejong Universityengineering degree IT, engineering degree IT at EPITA: Ecole d'Ingénieurs en Informatique
French, English
Github Skills (53)
javascript10
security10
privacy10
sdk10
cryptography10
encryption10
typescript9
indexeddb9
database8
pouchdb8
pocket8
specification8
offline-storage8
koala8
storage8
Programming languages (8)
Github contributions (5)
TankerHQ/identity-js
Jun 2021 - Nov 2022
Contributions:1 release, 24 reviews, 45 commits in 1 year 5 months
TankerHQ/sdk-js
Oct 2018 - Jan 2023
Tanker client-side encryption SDK for JavaScript
Contributions:1 release, 949 commits, 3 PRs in 4 years 3 months
cryptographyend-to-endprivacyclient-sidesecurity
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